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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-dimming-rule.h"
  37 #include "modest-tny-folder.h"
  38 #include "modest-tny-account.h"
  39 #include "modest-text-utils.h"
  40 #include <widgets/modest-attachments-view.h>
  41 #include <modest-runtime.h>
  42 #include <tny-simple-list.h>
  43
  44
  45 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  46 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  47 static gboolean _invalid_attach_selected (ModestWindow *win,
  48                                           gboolean unique, gboolean for_view, gboolean for_remove,
  49                                           ModestDimmingRule *rule);
  50 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  51 static gboolean _clipboard_is_empty (ModestWindow *win);
  52 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  53 static gboolean _already_opened_msg (ModestWindow *win, guint *n_messages);
  54 static gboolean _selected_msg_marked_as (ModestWindow *win, TnyHeaderFlags mask, gboolean opposite, gboolean all);
  55 static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
  56 static gboolean _selected_folder_is_snd_level (ModestMainWindow *win);
  57 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  58 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  59 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  60 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  61 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  63 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  64 static gboolean _msg_download_completed (ModestMainWindow *win);
  65 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  66 static gboolean _sending_in_progress (ModestWindow *win);
  67 static gboolean _marked_as_deleted (ModestWindow *win);
  68 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  69 static gboolean _transfer_mode_enabled (ModestWindow *win);
  70
  71
  72 gboolean
  73 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
  74 {
  75         ModestDimmingRule *rule = NULL;
  76         gboolean dimmed = FALSE;
  77
  78         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
  79         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
  80         rule = MODEST_DIMMING_RULE (user_data);
  81
  82         /* Check dimmed rule */
  83         if (!dimmed) {
  84                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
  85                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
  86                 if (dimmed)
  87                         modest_dimming_rule_set_notification (rule, "");
  88         }
  89
  90         return dimmed;
  91 }
  92
  93 gboolean
  94 modest_ui_dimming_rules_on_csm_new_folder (ModestWindow *win, gpointer user_data)
  95 {
  96         ModestDimmingRule *rule = NULL;
  97         gboolean dimmed = FALSE;
  98
  99         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 100         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 101         rule = MODEST_DIMMING_RULE (user_data);
 102
 103         /* Check common new folder menu item dimming rules */
 104         dimmed = modest_ui_dimming_rules_on_new_folder (win, user_data);
 105
 106         /* Check CSM specific dimming rules */
 107         if (!dimmed) {
 108                 dimmed = _selected_folder_is_snd_level (MODEST_MAIN_WINDOW(win));
 109                 if (dimmed)
 110                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 111         }
 112
 113         return dimmed;
 114 }
 115
 116 gboolean
 117 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 118 {
 119         ModestDimmingRule *rule = NULL;
 120         GtkWidget *folder_view = NULL;
 121         TnyFolderStore *parent_folder = NULL;
 122         gboolean dimmed = FALSE;
 123
 124         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 125         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 126         rule = MODEST_DIMMING_RULE (user_data);
 127
 128         /* Get selected folder as parent of new folder to create */
 129         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 130                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 131         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 132         if (!parent_folder)
 133                 return TRUE;
 134
 135         if (TNY_IS_ACCOUNT (parent_folder)) {
 136                 /* If it's the local account then do not dim */
 137                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 138                         dimmed = FALSE;
 139                 } else {
 140                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 141                         /* If it's POP then dim */
 142                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 143                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 144                         if (dimmed)
 145                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 146                 }
 147         } else {
 148                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 149
 150                 TnyFolderType types[3];
 151
 152                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 153                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 154                 types[2] = TNY_FOLDER_TYPE_SENT;
 155
 156                 /* Apply folder rules */
 157                 if (!dimmed) {
 158                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 159                         if (dimmed)
 160                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 161                 }
 162                 if (!dimmed) {
 163                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 164                         if (dimmed)
 165                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 166                 }
 167         }
 168         g_object_unref (parent_folder);
 169
 170         return dimmed;
 171 }
 172
 173 gboolean
 174 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 175 {
 176         ModestDimmingRule *rule = NULL;
 177         GtkWidget *folder_view = NULL;
 178         GtkWidget *header_view = NULL;
 179         gboolean dimmed = FALSE;
 180
 181         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 182         rule = MODEST_DIMMING_RULE (user_data);
 183
 184         if (MODEST_IS_MAIN_WINDOW (win)) {
 185                 /* Get the folder view */
 186                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 187                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 188
 189                 /* Get header view */
 190                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 191                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 192
 193                 if (header_view && gtk_widget_is_focus (header_view))
 194                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 195
 196                 if (folder_view && gtk_widget_is_focus (folder_view))
 197                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 198
 199                 if (header_view && folder_view &&
 200                     !gtk_widget_is_focus (header_view) &&
 201                     !gtk_widget_is_focus (folder_view)) {
 202                         dimmed = TRUE;
 203                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 204                 }
 205         } else {
 206                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 207         }
 208
 209         return dimmed;
 210 }
 211
 212
 213
 214 gboolean
 215 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 216 {
 217         ModestDimmingRule *rule = NULL;
 218         TnyFolderType types[6];
 219         gboolean dimmed = FALSE;
 220
 221         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 222         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 223         rule = MODEST_DIMMING_RULE (user_data);
 224
 225         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 226         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 227         types[2] = TNY_FOLDER_TYPE_SENT;
 228         types[3] = TNY_FOLDER_TYPE_INBOX;
 229         types[4] = TNY_FOLDER_TYPE_ROOT;
 230         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 231
 232
 233         /* Check dimmed rule */
 234         if (!dimmed) {
 235                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 236                 if (dimmed)
 237                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 238         }
 239         if (!dimmed) {
 240                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 241                 if (dimmed)
 242                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 243         }
 244         if (!dimmed) {
 245                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 246                 if (dimmed)
 247                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 248         }
 249         if (!dimmed) {
 250                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 251                 if (dimmed)
 252                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 253         }
 254
 255         return dimmed;
 256 }
 257
 258 gboolean
 259 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 260 {
 261         ModestDimmingRule *rule = NULL;
 262         gboolean dimmed = FALSE;
 263
 264         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 265         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 266         rule = MODEST_DIMMING_RULE (user_data);
 267
 268         /* Check dimmed rule */
 269         if (!dimmed) {
 270                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 271                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 272         }
 273
 274         if (!dimmed) {
 275                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 276                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 277         }
 278
 279         return dimmed;
 280
 281 }
 282
 283 gboolean
 284 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 285 {
 286         ModestDimmingRule *rule = NULL;
 287         TnyFolderType types[4];
 288         gboolean dimmed = FALSE;
 289
 290         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 291         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 292         rule = MODEST_DIMMING_RULE (user_data);
 293
 294         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 295         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 296         types[2] = TNY_FOLDER_TYPE_SENT;
 297         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 298
 299         /* Check dimmed rule */
 300         if (!dimmed) {
 301                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 302                 if (dimmed)
 303                         modest_dimming_rule_set_notification (rule, "");
 304         }
 305         if (!dimmed) {
 306                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 307                 if (dimmed)
 308                         modest_dimming_rule_set_notification (rule, "");
 309         }
 310         if (!dimmed) {
 311                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 312                 if (dimmed)
 313                         modest_dimming_rule_set_notification (rule, "");
 314         }
 315
 316         return dimmed;
 317 }
 318
 319 gboolean
 320 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 321 {
 322         ModestDimmingRule *rule = NULL;
 323         gboolean dimmed = FALSE;
 324
 325         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 326         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 327         rule = MODEST_DIMMING_RULE (user_data);
 328
 329         /* Check dimmed rule */
 330         if (!dimmed) {
 331                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 332         }
 333         if (!dimmed) {
 334                 dimmed = _marked_as_deleted (win);
 335                 if (dimmed)
 336                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 337         }
 338         if (!dimmed) {
 339                 dimmed = _selected_msg_sent_in_progress (win);
 340                 if (dimmed)
 341                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 342         }
 343
 344         return dimmed;
 345 }
 346
 347 gboolean
 348 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 349 {
 350         ModestDimmingRule *rule = NULL;
 351         gboolean dimmed = FALSE;
 352         TnyFolderType types[3];
 353
 354         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 355         rule = MODEST_DIMMING_RULE (user_data);
 356
 357         /* main window dimming rules */
 358         if (MODEST_IS_MAIN_WINDOW(win)) {
 359
 360                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 361                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 362                 types[2] = TNY_FOLDER_TYPE_ROOT;
 363
 364                 /* Check dimmed rule */
 365                 if (!dimmed) {
 366                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 367                         if (dimmed)
 368                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 369                 }
 370                 if (!dimmed) {
 371                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 372                         if (dimmed)
 373                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 374                 }
 375                 if (!dimmed) {
 376                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 377                 }
 378         /* msg view window dimming rules */
 379         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 380
 381                 /* Check dimmed rule */
 382                 if (!dimmed) {
 383                         dimmed = _transfer_mode_enabled (win);
 384                         if (dimmed)
 385                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 386                 }
 387                 if (!dimmed) {
 388                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 389                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 390                         if (dimmed)
 391                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 392                 }
 393         }
 394
 395         return dimmed;
 396 }
 397
 398
 399 gboolean
 400 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 401 {
 402         ModestDimmingRule *rule = NULL;
 403         gboolean dimmed = FALSE;
 404
 405         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 406         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 407         rule = MODEST_DIMMING_RULE (user_data);
 408
 409         /* Check dimmed rule */
 410         if (!dimmed) {
 411                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 412         }
 413         if (!dimmed) {
 414                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 415                 if (dimmed)
 416                         modest_dimming_rule_set_notification (rule, "");
 417         }
 418
 419         return dimmed;
 420 }
 421
 422 gboolean
 423 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 424 {
 425         gboolean dimmed = FALSE;
 426
 427         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 428
 429         /* Check dimmed rule */
 430         if (!dimmed)
 431                 dimmed = TRUE;
 432
 433         return dimmed;
 434 }
 435
 436 gboolean
 437 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 438 {
 439         ModestDimmingRule *rule = NULL;
 440         guint n_messages = 0;
 441         gboolean dimmed = FALSE;
 442
 443         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 444         rule = MODEST_DIMMING_RULE (user_data);
 445
 446         /* Check dimmed rule */
 447         if (MODEST_IS_MAIN_WINDOW (win)) {
 448                 if (!dimmed) {
 449                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 450                         if (dimmed)
 451                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 452                 }
 453                 if (!dimmed) {
 454                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 455                 }
 456                 if (!dimmed) {
 457                         dimmed = _already_opened_msg (win, &n_messages);
 458                         if (dimmed) {
 459                                 gchar *num = g_strdup_printf ("%d", n_messages);
 460                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 461 /*                              modest_dimming_rule_set_notification (rule, _("mcen_nc_unable_to_delete_n_messages")); */
 462                                 modest_dimming_rule_set_notification (rule, message);
 463                                 g_free(message);
 464                                 g_free(num);
 465                         }
 466                 }
 467                 if (!dimmed) {
 468                         dimmed = _marked_as_deleted (win);
 469                         if (dimmed)
 470                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 471                 }
 472                 if (!dimmed) {
 473                         dimmed = _selected_msg_sent_in_progress (win);
 474                         if (dimmed)
 475                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 476                 }
 477         }
 478         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 479                 if (!dimmed) {
 480                         dimmed = _transfer_mode_enabled (win);
 481                         if (dimmed)
 482                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 483                 }
 484                 if (!dimmed) {
 485                         dimmed = _marked_as_deleted (win);
 486                         if (dimmed)
 487                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 488                 }
 489                 if (!dimmed) {
 490                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 491                         if (dimmed) {
 492                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 493                         }
 494                 }
 495         }
 496
 497         return dimmed;
 498 }
 499
 500 gboolean
 501 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 502 {
 503         ModestDimmingRule *rule = NULL;
 504         GtkWidget *header_view = NULL;
 505         gboolean dimmed = FALSE;
 506
 507         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 508         rule = MODEST_DIMMING_RULE (user_data);
 509
 510         /* main window dimming rules */
 511         if (MODEST_IS_MAIN_WINDOW(win)) {
 512
 513                 /* Check dimmed rule */
 514                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 515                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 516
 517                 /* If the header view has the focus: */
 518                 if (header_view && gtk_widget_is_focus (header_view)) {
 519                         /* Check dimmed rule */
 520                         if (!dimmed)
 521                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 522                 }
 523                 else {
 524                         /* If the folder view has the focus: */
 525                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 526                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 527                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 528                                 TnyFolderStore *folder_store
 529                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 530                                 if (folder_store) {
 531                                         /* Only enable for folders, not accounts,
 532                                          * though the UI spec is not clear about that.
 533                                          * If we enable this for accounts then we must
 534                                          * add code to handle them in modest_ui_actions_on_details(). */
 535                                         if (!TNY_IS_FOLDER(folder_store)) {
 536                                                 dimmed = TRUE;
 537                                                 modest_dimming_rule_set_notification (rule, "");
 538                                         }
 539
 540                                         g_object_unref (folder_store);
 541                                 }
 542                         }
 543
 544                 }
 545
 546         /* msg view window dimming rules */
 547         } else {
 548
 549                 /* Check dimmed rule */
 550                 if (!dimmed) {
 551                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 552                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 553                         if (dimmed)
 554                                 modest_dimming_rule_set_notification (rule, "");
 555                 }
 556         }
 557
 558         return dimmed;
 559 }
 560
 561
 562 gboolean
 563 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 564 {
 565         ModestDimmingRule *rule = NULL;
 566         TnyHeaderFlags flags;
 567         gboolean dimmed = FALSE;
 568
 569         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 570         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 571         rule = MODEST_DIMMING_RULE (user_data);
 572
 573         flags = TNY_HEADER_FLAG_SEEN;
 574
 575         /* Check dimmed rule */
 576         if (!dimmed) {
 577                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 578         }
 579         if (!dimmed) {
 580                 dimmed = _selected_msg_marked_as (win, flags, FALSE, TRUE);
 581                 if (dimmed)
 582                         modest_dimming_rule_set_notification (rule, "");
 583         }
 584
 585         return dimmed;
 586 }
 587
 588 gboolean
 589 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 590 {
 591         ModestDimmingRule *rule = NULL;
 592         TnyHeaderFlags flags;
 593         gboolean dimmed = FALSE;
 594
 595         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 596         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 597         rule = MODEST_DIMMING_RULE (user_data);
 598
 599         flags = TNY_HEADER_FLAG_SEEN;
 600
 601         /* Check dimmed rule */
 602         if (!dimmed)
 603                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 604         if (!dimmed) {
 605                 dimmed = _selected_msg_marked_as (win, flags, TRUE, TRUE);
 606                 if (dimmed)
 607                         modest_dimming_rule_set_notification (rule, "");
 608         }
 609
 610         return dimmed;
 611 }
 612
 613 gboolean
 614 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 615 {
 616         ModestDimmingRule *rule = NULL;
 617         gboolean dimmed = FALSE;
 618
 619         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 620         rule = MODEST_DIMMING_RULE (user_data);
 621
 622         if (MODEST_IS_MAIN_WINDOW (win))
 623                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 624         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 625                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 626
 627         return dimmed;
 628 }
 629
 630
 631 gboolean
 632 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 633 {
 634         GtkWidget *folder_view = NULL;
 635         GtkWidget *header_view = NULL;
 636         ModestDimmingRule *rule = NULL;
 637         guint n_messages = 0;
 638         gboolean dimmed = FALSE;
 639
 640         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 641         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 642         rule = MODEST_DIMMING_RULE (user_data);
 643
 644         /* Get the folder view */
 645         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 646                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 647
 648         /* Get header view */
 649         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 650                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 651
 652         /* Check diming rules for folders and messages transfer  */
 653         if (!dimmed) {
 654                 dimmed = _already_opened_msg (win, &n_messages);
 655                 if (dimmed) {
 656                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 657                         modest_dimming_rule_set_notification (rule, message);
 658                         g_free(message);
 659                 }
 660         }
 661         if (!dimmed) {
 662                 if (!gtk_widget_is_focus (folder_view))
 663                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 664
 665         }
 666
 667         return dimmed;
 668 }
 669
 670 gboolean
 671 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 672 {
 673         ModestDimmingRule *rule = NULL;
 674         gboolean dimmed = FALSE;
 675
 676         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 677         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 678         rule = MODEST_DIMMING_RULE (user_data);
 679
 680         /* Check dimmed rule */
 681         if (!dimmed) {
 682                 dimmed = _transfer_mode_enabled (win);
 683                 if (dimmed)
 684                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 685         }
 686         if (!dimmed) {
 687                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 688                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 689                 if (dimmed)
 690                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 691         }
 692
 693         return dimmed;
 694 }
 695
 696 gboolean
 697 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 698 {
 699         ModestDimmingRule *rule = NULL;
 700         gboolean dimmed = FALSE;
 701
 702         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 703         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 704         rule = MODEST_DIMMING_RULE (user_data);
 705
 706         /* Check dimmed rule */
 707         if (!dimmed) {
 708                 dimmed = _transfer_mode_enabled (win);
 709                 if (dimmed)
 710                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 711         }
 712
 713         return dimmed;
 714 }
 715
 716 gboolean
 717 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
 718 {
 719         ModestDimmingRule *rule = NULL;
 720         TnyFolderType types[3];
 721         gboolean dimmed = FALSE;
 722
 723         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 724         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 725         rule = MODEST_DIMMING_RULE (user_data);
 726
 727         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 728         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 729         types[2] = TNY_FOLDER_TYPE_SENT;
 730
 731         /* Check dimmed rule */
 732         if (!dimmed) {
 733                 dimmed = _clipboard_is_empty (win);
 734                 if (dimmed)
 735                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
 736         }
 737         if (!dimmed) {
 738                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 739                 if (dimmed)
 740                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
 741         }
 742         if (!dimmed) {
 743                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 744                 if (dimmed) {
 745                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
 746                 }
 747         }
 748         if (!dimmed) {
 749                 dimmed = _selected_folder_is_same_as_source (win);
 750                 if (dimmed)
 751                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
 752         }
 753
 754         return dimmed;
 755 }
 756
 757
 758 gboolean
 759 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
 760 {
 761         ModestDimmingRule *rule = NULL;
 762         gboolean dimmed = FALSE;
 763
 764         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 765         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 766         rule = MODEST_DIMMING_RULE (user_data);
 767
 768         /* Check dimmed rule */
 769         if (!dimmed) {
 770                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 771                 if (dimmed)
 772                         modest_dimming_rule_set_notification (rule, "");
 773         }
 774
 775         return dimmed;
 776 }
 777
 778 gboolean
 779 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
 780 {
 781         ModestDimmingRule *rule = NULL;
 782         gboolean dimmed = FALSE;
 783
 784         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 785         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 786         rule = MODEST_DIMMING_RULE (user_data);
 787
 788         /* Check dimmed rule */
 789         if (!dimmed)
 790                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
 791
 792         if (!dimmed) {
 793                 dimmed = _purged_attach_selected (win, FALSE, NULL);
 794                 if (dimmed) {
 795                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
 796                 }
 797         }
 798
 799         return dimmed;
 800 }
 801
 802 gboolean
 803 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
 804 {
 805         ModestDimmingRule *rule = NULL;
 806         gboolean dimmed = FALSE;
 807
 808         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 809         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 810         rule = MODEST_DIMMING_RULE (user_data);
 811
 812         /* Check dimmed rule */
 813         if (!dimmed)
 814                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
 815
 816         if (!dimmed) {
 817                 dimmed = _purged_attach_selected (win, FALSE, NULL);
 818                 if (dimmed) {
 819                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
 820                 }
 821         }
 822
 823         return dimmed;
 824 }
 825
 826 gboolean
 827 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
 828 {
 829         ModestDimmingRule *rule = NULL;
 830         gboolean dimmed = FALSE;
 831
 832         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 833         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 834         rule = MODEST_DIMMING_RULE (user_data);
 835
 836         /* Check in main window if there's only one message selected */
 837         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
 838                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
 839         }
 840
 841         /* Check in view window if there's any attachment selected */
 842         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
 843                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
 844                 if (dimmed)
 845                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
 846         }
 847
 848         /* cannot purge in editable drafts nor pop folders */
 849         if (!dimmed) {
 850                 dimmed = _invalid_folder_for_purge (win, rule);
 851         }
 852
 853         /* Check if the selected message in main window has attachments */
 854         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
 855                 dimmed = _selected_msg_marked_as (win, TNY_HEADER_FLAG_ATTACHMENTS, TRUE, FALSE);
 856                 if (dimmed)
 857                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
 858         }
 859
 860         /* Check if all attachments are already purged */
 861         if (!dimmed) {
 862                 dimmed = _purged_attach_selected (win, TRUE, rule);
 863         }
 864
 865         /* Check if the message is already downloaded */
 866         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
 867                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
 868                 if (dimmed)
 869                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
 870         }
 871
 872
 873         return dimmed;
 874 }
 875
 876 gboolean
 877 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
 878 {
 879         ModestDimmingRule *rule = NULL;
 880         gboolean dimmed = FALSE;
 881
 882         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 883         rule = MODEST_DIMMING_RULE (user_data);
 884
 885         /* Check dimmed rule */
 886         if (!dimmed) {
 887                 dimmed = _clipboard_is_empty (win);
 888                 if (dimmed)
 889                         modest_dimming_rule_set_notification (rule, "");
 890         }
 891
 892         return dimmed;
 893 }
 894
 895 gboolean
 896 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
 897 {
 898         ModestDimmingRule *rule = NULL;
 899         gboolean dimmed = FALSE;
 900
 901         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 902         rule = MODEST_DIMMING_RULE (user_data);
 903
 904         /* Check common dimming rules */
 905         if (!dimmed) {
 906                 dimmed = _invalid_clipboard_selected (win, rule);
 907         }
 908
 909         /* Check window specific dimming rules */
 910         if (MODEST_IS_MAIN_WINDOW (win)) {
 911                 if (!dimmed) {
 912                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 913                         if (dimmed)
 914                                 modest_dimming_rule_set_notification (rule, "");
 915                 }
 916                 if (!dimmed) {
 917                         dimmed = _selected_msg_sent_in_progress (win);
 918                         if (dimmed)
 919                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
 920                 }
 921         }
 922
 923         return dimmed;
 924 }
 925
 926 gboolean
 927 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
 928 {
 929         ModestDimmingRule *rule = NULL;
 930         gboolean dimmed = FALSE;
 931
 932         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 933         rule = MODEST_DIMMING_RULE (user_data);
 934
 935         /* Check common dimming rules */
 936         if (!dimmed) {
 937                 dimmed = _invalid_clipboard_selected (win, rule);
 938         }
 939
 940         /* Check window specific dimming rules */
 941         if (MODEST_IS_MAIN_WINDOW (win)) {
 942                 if (!dimmed) {
 943                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 944                         if (dimmed)
 945                                 modest_dimming_rule_set_notification (rule, "");
 946                 }
 947                 if (!dimmed) {
 948                         dimmed = _selected_msg_sent_in_progress (win);
 949                         if (dimmed)
 950                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
 951                 }
 952         }
 953
 954         return dimmed;
 955 }
 956
 957 gboolean
 958 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
 959 {
 960         ModestDimmingRule *rule = NULL;
 961         gboolean dimmed = FALSE;
 962
 963         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 964         rule = MODEST_DIMMING_RULE (user_data);
 965
 966         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 967
 968         /* Check dimmed rule */
 969         if (!dimmed) {
 970                 dimmed = _transfer_mode_enabled (win);
 971                 if (dimmed)
 972                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 973         }
 974         if (!dimmed) {
 975                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 976                         dimmed = modest_msg_view_window_first_message_selected (MODEST_MSG_VIEW_WINDOW(win));
 977                 modest_dimming_rule_set_notification (rule, NULL);
 978         }
 979
 980         return dimmed;
 981 }
 982
 983 gboolean
 984 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
 985 {
 986         ModestDimmingRule *rule = NULL;
 987         gboolean dimmed = FALSE;
 988
 989         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 990         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 991         rule = MODEST_DIMMING_RULE (user_data);
 992
 993         /* Check dimmed rule */
 994         if (!dimmed) {
 995                 dimmed = _transfer_mode_enabled (win);
 996                 if (dimmed)
 997                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 998         }
 999         if (!dimmed) {
1000                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
1001                         dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1002                 modest_dimming_rule_set_notification (rule, NULL);
1003         }
1004
1005         return dimmed;
1006 }
1007
1008
1009 gboolean
1010 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1011 {
1012         const gboolean dimmed =
1013                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1014                         TRUE);
1015
1016         return dimmed;
1017 }
1018
1019 gboolean
1020 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1021 {
1022         ModestDimmingRule *rule = NULL;
1023         TnyFolderType types[1];
1024         guint n_messages = 0;
1025         gboolean dimmed = FALSE;
1026
1027         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1028         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1029         rule = MODEST_DIMMING_RULE (user_data);
1030
1031         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1032
1033         /* Check dimmed rules */
1034         if (!dimmed) {
1035                 dimmed = _already_opened_msg (win, &n_messages);
1036                 if (dimmed)
1037                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1038         }
1039         if (!dimmed) {
1040                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1041                 if (dimmed)
1042                         modest_dimming_rule_set_notification (rule, "");
1043         }
1044         if (!dimmed) {
1045                 dimmed = !_sending_in_progress (win);
1046                 if (dimmed)
1047                         modest_dimming_rule_set_notification (rule, "");
1048         }
1049
1050         return dimmed;
1051 }
1052
1053 gboolean
1054 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1055 {
1056         ModestDimmingRule *rule = NULL;
1057         gboolean dimmed = FALSE;
1058
1059         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1060         rule = MODEST_DIMMING_RULE (user_data);
1061
1062         /* Check dimmed rule */
1063         if (!dimmed) {
1064                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1065                                                           TRUE);
1066                 if (dimmed)
1067                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1068         }
1069
1070         return dimmed;
1071 }
1072
1073 gboolean
1074 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1075 {
1076         ModestDimmingRule *rule = NULL;
1077         gboolean dimmed = FALSE;
1078
1079         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1080         rule = MODEST_DIMMING_RULE (user_data);
1081
1082         /* Check dimmed rule */
1083         if (!dimmed) {
1084                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1085                 gchar *selection = NULL;
1086                 selection = gtk_clipboard_wait_for_text (clipboard);
1087
1088                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1089         }
1090
1091         return dimmed;
1092 }
1093
1094 /* *********************** static utility functions ******************** */
1095
1096 static gboolean
1097 _marked_as_deleted (ModestWindow *win)
1098 {
1099         gboolean result = FALSE;
1100         TnyHeaderFlags flags;
1101
1102         flags = TNY_HEADER_FLAG_DELETED;
1103
1104         /* Check dimmed rule */
1105         result = _selected_msg_marked_as (win, flags, FALSE, FALSE);
1106
1107         return result;
1108 }
1109
1110 static gboolean
1111 _selected_folder_not_writeable (ModestMainWindow *win)
1112 {
1113         GtkWidget *folder_view = NULL;
1114         TnyFolderStore *parent_folder = NULL;
1115         ModestTnyFolderRules rules;
1116         gboolean result = FALSE;
1117
1118         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1119
1120         /* Get folder view */
1121         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1122                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1123         /* If no folder view, always dimmed */
1124         if (!folder_view)
1125                 return TRUE;
1126
1127         /* Get selected folder as parent of new folder to create */
1128         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1129         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1130                 if (parent_folder)
1131                         g_object_unref (parent_folder);
1132                 return TRUE;
1133         }
1134
1135         /* Check dimmed rule */
1136         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1137         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1138
1139         /* free */
1140         g_object_unref (parent_folder);
1141
1142         return result;
1143 }
1144
1145 static gboolean
1146 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1147 {
1148         TnyFolderType types[2];
1149         gboolean result = FALSE;
1150
1151         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1152
1153         types[0] = TNY_FOLDER_TYPE_ROOT;
1154         types[1] = TNY_FOLDER_TYPE_INBOX;
1155
1156         /* Check folder type */
1157         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1158
1159         /* Check pop and MMC accounts */
1160         if (!result) {
1161                 result = _selected_folder_is_MMC_or_POP_root (win);
1162         }
1163
1164         return result;
1165 }
1166
1167
1168 static gboolean
1169 _selected_folder_is_root (ModestMainWindow *win)
1170 {
1171         TnyFolderType types[1];
1172         gboolean result = FALSE;
1173
1174         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1175
1176         /* All accounts are root items: */
1177         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1178                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1179         if (folder_view) {
1180                 gboolean is_account = FALSE;
1181                 TnyFolderStore *folder_store =
1182                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1183                 if (folder_store) {
1184                         is_account = TNY_IS_ACCOUNT (folder_store);
1185                         g_object_unref (folder_store);
1186                         folder_store = NULL;
1187                 }
1188
1189                 if (is_account)
1190                         return TRUE;
1191         }
1192
1193         /* Try something more precise: */
1194         types[0] = TNY_FOLDER_TYPE_ROOT;
1195
1196         /* Check folder type */
1197         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1198
1199         /* Check pop and MMC accounts */
1200         if (!result) {
1201                 result = _selected_folder_is_MMC_or_POP_root (win);
1202         }
1203
1204         return result;
1205 }
1206
1207 static gboolean
1208 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1209 {
1210         GtkWidget *folder_view = NULL;
1211         TnyFolderStore *parent_folder = NULL;
1212         gboolean result = FALSE;
1213
1214         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1215                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1216         /* Get selected folder as parent of new folder to create */
1217         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1218         if (!parent_folder)
1219                 return TRUE;
1220
1221         if (TNY_IS_ACCOUNT (parent_folder)) {
1222                 /* If it's the local account then do not dim */
1223                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1224                         result = FALSE;
1225                 } else {
1226                                 /* If it's the MMC root folder then dim it */
1227                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1228                                         result = TRUE;
1229                         } else {
1230                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1231                                 /* If it's POP then dim */
1232                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1233                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1234                         }
1235                 }
1236         }
1237         g_object_unref (parent_folder);
1238
1239         return result;
1240 }
1241
1242
1243 static gboolean
1244 _selected_folder_is_empty (ModestMainWindow *win)
1245 {
1246         GtkWidget *folder_view = NULL;
1247         TnyFolderStore *folder = NULL;
1248         gboolean result = FALSE;
1249
1250         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1251
1252         /* Get folder view */
1253         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1254                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1255         /* If no folder view, always dimmed */
1256         if (!folder_view)
1257                 return TRUE;
1258
1259         /* Get selected folder as parent of new folder to create */
1260         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1261         if (!(folder && TNY_IS_FOLDER(folder))) {
1262                 if (folder)
1263                         g_object_unref (folder);
1264                 return TRUE;
1265         }
1266
1267         /* Check folder type */
1268         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1269
1270         /* free */
1271         g_object_unref (folder);
1272
1273         return result;
1274 }
1275
1276 static gboolean
1277 _selected_folder_is_same_as_source (ModestWindow *win)
1278 {
1279         ModestEmailClipboard *clipboard = NULL;
1280         GtkWidget *folder_view = NULL;
1281         TnyFolderStore *folder = NULL;
1282         gboolean result = FALSE;
1283
1284         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1285
1286         /* Get folder view */
1287         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1288                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1289         if (!folder_view)
1290                 return FALSE;
1291
1292         /* Get selected folder as destination folder */
1293         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1294         if (!(folder && TNY_IS_FOLDER(folder))) {
1295                 result = FALSE;
1296                 goto frees;
1297         }
1298
1299         /* Check clipboard is cleared */
1300         clipboard = modest_runtime_get_email_clipboard ();
1301         if (modest_email_clipboard_cleared (clipboard)) {
1302                 result = FALSE;
1303                 goto frees;
1304         }
1305
1306         /* Check source folder */
1307         result = modest_email_clipboard_check_source_folder (clipboard,
1308                                                              (const TnyFolder *) folder);
1309
1310         /* Free */
1311  frees:
1312         g_object_unref (folder);
1313
1314         return result;
1315 }
1316
1317 static gboolean
1318 _selected_folder_is_any_of_type (ModestWindow *win,
1319                                  TnyFolderType types[],
1320                                  guint ntypes)
1321 {
1322         GtkWidget *folder_view = NULL;
1323         TnyFolderStore *folder = NULL;
1324         TnyFolderType folder_type;
1325         guint i=0;
1326         gboolean result = FALSE;
1327
1328         /*Get current folder */
1329         if (MODEST_IS_MAIN_WINDOW(win)) {
1330
1331                 /* Get folder view */
1332                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1333                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1334                 /* If no folder view, always dimmed */
1335                 if (!folder_view)
1336                         return FALSE;
1337
1338                 /* Get selected folder as parent of new folder to create */
1339                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1340
1341                 if (!(folder && TNY_IS_FOLDER(folder))) {
1342                         if (folder)
1343                                 g_object_unref (folder);
1344                         return FALSE;
1345                 }
1346
1347                 /* Check folder type */
1348                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1349         }
1350         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1351                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1352                 for (i=0; i < ntypes; i++) {
1353                         result = result || folder_type == types[i];
1354                 }
1355         }
1356
1357
1358         /* free */
1359         g_object_unref (folder);
1360
1361         return result;
1362 }
1363
1364 static gboolean
1365 _folder_is_any_of_type (TnyFolder *folder,
1366                         TnyFolderType types[],
1367                         guint ntypes)
1368 {
1369         TnyFolderType folder_type;
1370         gboolean result = FALSE;
1371         guint i;
1372
1373         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1374
1375         /* Get folder type */
1376         folder_type = modest_tny_folder_guess_folder_type (folder);
1377
1378         /* Check foler type */
1379         for (i=0; i < ntypes; i++) {
1380                 result = result || folder_type == types[i];
1381         }
1382
1383         return result;
1384 }
1385
1386 static gboolean
1387 _selected_folder_is_snd_level (ModestMainWindow *win)
1388 {
1389         GtkWidget *folder_view = NULL;
1390         GtkTreeSelection *sel = NULL;
1391         GtkTreeModel *model = NULL;
1392         GtkTreePath *path = NULL;
1393         GtkTreeIter iter;
1394         TnyFolderStore *folder = NULL;
1395         gboolean result = FALSE;
1396
1397         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1398
1399         /*Get curent folder */
1400         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1401                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1402         /* If no folder view, always dimmed */
1403         if (!folder_view)
1404                 goto frees;
1405
1406         /* Get selected folder as parent of new folder to create */
1407         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1408         if (!(folder && TNY_IS_FOLDER(folder))) {
1409                 goto frees;
1410         }
1411
1412         /* Check folder level */
1413         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(folder_view));
1414         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
1415                 goto frees;
1416         path = gtk_tree_model_get_path (model, &iter);
1417         result = gtk_tree_path_get_depth (path) > 2;
1418
1419  frees:
1420         if (folder != NULL)
1421                 g_object_unref (folder);
1422         if (path != NULL)
1423                 gtk_tree_path_free (path);
1424
1425         return result;
1426
1427 }
1428
1429 static gboolean
1430 _clipboard_is_empty (ModestWindow *win)
1431 {
1432         gboolean result = FALSE;
1433
1434         if (MODEST_IS_MAIN_WINDOW (win)) {
1435                 ModestEmailClipboard *clipboard = NULL;
1436                 clipboard = modest_runtime_get_email_clipboard ();
1437                 if (modest_email_clipboard_cleared (clipboard))
1438                  result = TRUE;
1439         }
1440
1441         return result;
1442 }
1443
1444 static gboolean
1445 _invalid_clipboard_selected (ModestWindow *win,
1446                        ModestDimmingRule *rule)
1447 {
1448         gboolean result = FALSE;
1449
1450         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1451                 GtkClipboard *clipboard = NULL;
1452                 gchar *selection = NULL;
1453                 GtkWidget *focused = NULL;
1454
1455                 /* Get clipboard selection*/
1456                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1457                 selection = gtk_clipboard_wait_for_text (clipboard);
1458
1459                 /* Get focuesed widget */
1460                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1461
1462                 /* Check dimming */
1463                 result = ((selection == NULL) ||
1464                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1465
1466                 if (result)
1467                         modest_dimming_rule_set_notification (rule, "");
1468         }
1469         else if (MODEST_IS_MAIN_WINDOW (win)) {
1470                 GtkWidget *header_view = NULL;
1471
1472                 /* Get header view to check selected messages */
1473                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1474                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1475
1476                 /* Check dimming */
1477                 result = !modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));
1478                 if (result)
1479                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1480         }
1481
1482         return result;
1483 }
1484
1485
1486 static gboolean
1487 _invalid_attach_selected (ModestWindow *win,
1488                           gboolean unique,
1489                           gboolean for_view,
1490                           gboolean for_remove,
1491                           ModestDimmingRule *rule)
1492 {
1493         GList *attachments, *node;
1494         gint n_selected;
1495         TnyHeaderFlags flags;
1496         gboolean nested_attachments = FALSE;
1497         gboolean selected_messages = FALSE;
1498         gboolean result = FALSE;
1499
1500         if (MODEST_IS_MAIN_WINDOW (win)) {
1501                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1502                 if (!result)
1503                         result = _selected_msg_marked_as (win, flags, TRUE, FALSE);
1504         }
1505         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1506
1507                 /* Get selected atachments */
1508                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1509                 n_selected = g_list_length (attachments);
1510
1511                 /* Check unique */
1512                 if (!result) {
1513                         if (unique)
1514                                 result = n_selected != 1;
1515                         else
1516
1517                                 result = n_selected < 1;
1518                 }
1519
1520                 /* Check attached type (view operation not required) */
1521                 if (!result && !for_view)  {
1522                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1523                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1524                                 TnyList *nested_list = tny_simple_list_new ();
1525                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1526                                         selected_messages = TRUE;
1527                                         result = TRUE;
1528                                 }
1529                                 tny_mime_part_get_parts (mime_part, nested_list);
1530                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1531                                         nested_attachments = TRUE;
1532                                         result = TRUE;
1533                                 }
1534                                 g_object_unref (nested_list);
1535                         }
1536                 }
1537
1538                 /* Set notifications */
1539                 if (result && rule != NULL) {
1540                         if (selected_messages) {
1541                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1542                         } else if (nested_attachments) {
1543                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1544                         } else if (n_selected == 0) {
1545                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1546                         } else if (unique) {
1547                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1548                         }
1549                 }
1550
1551                 /* Free */
1552                 g_list_free (attachments);
1553         }
1554
1555         return result;
1556 }
1557
1558 static gboolean
1559 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1560 {
1561         GList *attachments = NULL, *node;
1562         gint purged = 0;
1563         gint n_attachments = 0;
1564         gboolean result = FALSE;
1565
1566         /* This should check if _all_ the attachments are already purged. If only some
1567          * of them are purged, then it does not cause dim as there's a confirmation dialog
1568          * for removing only local attachments */
1569
1570         /* Get selected atachments */
1571         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1572                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1573         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1574                 /* If we're in main window, we won't know if there are already purged attachments */
1575                 return FALSE;
1576         }
1577
1578         if (attachments == NULL)
1579                 return FALSE;
1580
1581         for (node = attachments; node != NULL; node = g_list_next (node)) {
1582                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1583                 if (tny_mime_part_is_purged (mime_part)) {
1584                         purged++;
1585                 }
1586                 n_attachments++;
1587         }
1588
1589         /* Free */
1590         g_list_free (attachments);
1591
1592         if (all)
1593                 result = (purged == n_attachments);
1594         else
1595                 result = (purged > 0);
1596
1597         if (result && (rule != NULL))
1598                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1599
1600         return result;
1601 }
1602
1603 static gboolean
1604 _invalid_msg_selected (ModestMainWindow *win,
1605                        gboolean unique,
1606                        ModestDimmingRule *rule)
1607 {
1608         GtkWidget *header_view = NULL;
1609         GtkWidget *folder_view = NULL;
1610         gboolean selected_headers = FALSE;
1611         gboolean result = FALSE;
1612
1613         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1614         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1615
1616         /* Get header view to check selected messages */
1617         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1618                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1619
1620         /* Get folder view to check focus */
1621         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1622                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1623
1624         /* Get selected headers */
1625         selected_headers = modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));
1626
1627         /* Check dimmed rule (TODO: check focus on widgets */
1628         if (!result) {
1629                 result = ((!selected_headers) ||
1630                           (gtk_widget_is_focus (folder_view)));
1631                 if (result)
1632                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1633         }
1634         if (!result && unique) {
1635                 result = modest_header_view_count_selected_headers (MODEST_HEADER_VIEW(header_view)) > 1;
1636                 if (result)
1637                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1638         }
1639
1640         return result;
1641 }
1642
1643 static gboolean
1644 _already_opened_msg (ModestWindow *win,
1645                      guint *n_messages)
1646 {
1647         //ModestWindow *window = NULL;
1648         ModestWindowMgr *mgr = NULL;
1649         GtkWidget *header_view = NULL;
1650         TnyList *selected_headers = NULL;
1651         TnyIterator *iter = NULL;
1652         TnyHeader *header = NULL;
1653         gboolean found;
1654
1655         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1656
1657         /* Get header view to check selected messages */
1658         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1659                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1660
1661
1662         /* Check no selection */
1663         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1664             return FALSE;
1665
1666         /* Get selected headers */
1667         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1668         if (selected_headers == NULL)
1669                 return FALSE;
1670
1671         *n_messages = tny_list_get_length (selected_headers);
1672
1673         /* Check dimmed rule (TODO: check focus on widgets */
1674         mgr = modest_runtime_get_window_mgr ();
1675         iter = tny_list_create_iterator (selected_headers);
1676         found = FALSE;
1677         while (!tny_iterator_is_done (iter)) {
1678                 header = TNY_HEADER (tny_iterator_get_current (iter));
1679                 if (header) {
1680                         found = modest_window_mgr_find_registered_header (mgr,header, NULL);
1681
1682                         g_object_unref (header);
1683                 }
1684
1685                 tny_iterator_next (iter);
1686
1687                 if (found)
1688                         break;
1689         }
1690
1691         /* free */
1692         if (selected_headers != NULL)
1693                 g_object_unref (selected_headers);
1694         if (iter != NULL)
1695                 g_object_unref (iter);
1696
1697         return found;
1698 }
1699
1700 static gboolean
1701 _selected_msg_marked_as (ModestWindow *win,
1702                          TnyHeaderFlags mask,
1703                          gboolean opposite,
1704                          gboolean all)
1705 {
1706         ModestWindow *main_window = NULL;
1707         GtkWidget *header_view = NULL;
1708         TnyList *selected_headers = NULL;
1709         TnyIterator *iter = NULL;
1710         TnyHeader *header = NULL;
1711         TnyHeaderFlags flags = 0;
1712         gboolean result = TRUE;
1713
1714         if (MODEST_IS_MAIN_WINDOW (win))
1715                 main_window = win;
1716         else
1717                 main_window =
1718                         modest_window_mgr_get_main_window (modest_runtime_get_window_mgr ());
1719
1720         /* TODO: Javi, what about if the main window does not
1721            exist?. Adding some code to avoid CRITICALs */
1722         if (!main_window)
1723                 return FALSE;
1724
1725         /* Get header view to check selected messages */
1726         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(main_window),
1727                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1728
1729         /* Check no selection */
1730         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1731             return TRUE;
1732
1733         /* Get selected headers */
1734         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1735         if (selected_headers == NULL)
1736                 return TRUE;
1737
1738         /* Call the function for each header */
1739         iter = tny_list_create_iterator (selected_headers);
1740         while (!tny_iterator_is_done (iter) && result) {
1741                 header = TNY_HEADER (tny_iterator_get_current (iter));
1742                 if (header) {
1743                         flags = tny_header_get_flags (header);
1744                         if (opposite)
1745                                 result = (flags & mask) == 0;
1746                         else
1747                                 result = (flags & mask) != 0;
1748
1749                         g_object_unref (header);
1750                 }
1751
1752                 tny_iterator_next (iter);
1753         }
1754
1755         if (all)
1756                 result = result && tny_iterator_is_done (iter);
1757
1758         /* free */
1759         if (selected_headers != NULL)
1760                 g_object_unref (selected_headers);
1761         if (iter != NULL)
1762                 g_object_unref (iter);
1763
1764         return result;
1765 }
1766
1767 static gboolean
1768 _msg_download_in_progress (ModestMsgViewWindow *win)
1769 {
1770         gboolean result = FALSE;
1771
1772         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1773
1774         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1775
1776         return result;
1777 }
1778
1779 static gboolean
1780 _msg_download_completed (ModestMainWindow *win)
1781 {
1782         GtkWidget *header_view = NULL;
1783         TnyList *selected_headers = NULL;
1784         TnyIterator *iter = NULL;
1785         TnyHeader *header = NULL;
1786         TnyHeaderFlags flags = 0;
1787         gboolean result = FALSE;
1788
1789         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1790
1791
1792         /* Get header view to check selected messages */
1793         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1794                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1795
1796         /* Check no selection */
1797         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1798             return TRUE;
1799
1800         /* Get selected headers */
1801         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1802         if (selected_headers == NULL)
1803                 return TRUE;
1804
1805         /* Check dimmed rule  */
1806         result = TRUE;
1807         iter = tny_list_create_iterator (selected_headers);
1808         while (!tny_iterator_is_done (iter) && result) {
1809                 header = TNY_HEADER (tny_iterator_get_current (iter));
1810                 if (header) {
1811                         flags = tny_header_get_flags (header);
1812                         /* TODO: is this the right flag?, it seems that some
1813                            headers that have been previously downloaded do not
1814                            come with it */
1815                         result = (flags & TNY_HEADER_FLAG_CACHED);
1816
1817                         g_object_unref (header);
1818                 }
1819
1820                 tny_iterator_next (iter);
1821         }
1822
1823         g_object_unref (iter);
1824
1825         return result;
1826 }
1827
1828 static void
1829 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1830 {
1831         GSList **send_queues = (GSList **) userdata;
1832         *send_queues = g_slist_prepend (*send_queues, value);
1833 }
1834
1835 static gboolean
1836 _selected_msg_sent_in_progress (ModestWindow *win)
1837 {
1838         ModestCacheMgr *cache_mgr;
1839         GHashTable     *send_queue_cache;
1840         GSList *send_queues = NULL, *node;
1841         ModestTnySendQueue *send_queue = NULL;
1842         GtkWidget *header_view = NULL;
1843         TnyList *header_list = NULL;
1844         TnyIterator *iter = NULL;
1845         TnyHeader *header = NULL;
1846         gboolean result = FALSE;
1847         gchar *msg_uid = NULL;
1848
1849
1850         if (MODEST_IS_MAIN_WINDOW(win)) {
1851
1852                 /* Get header view to check selected messages */
1853                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1854                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1855
1856                 /* Check no selection */
1857                 if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1858                     return FALSE;
1859
1860                 /* Get selected headers */
1861                 header_list = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1862
1863                 /* Get message header */
1864                 if (!header_list) return FALSE;
1865                 iter = tny_list_create_iterator (header_list);
1866                 header = TNY_HEADER (tny_iterator_get_current (iter));
1867                 if (header) {
1868                         /* Get message uid */
1869                         msg_uid = modest_tny_send_queue_get_msg_id (header);
1870                         g_object_unref (header);
1871                 }
1872
1873         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1874
1875                 /* Get message header */
1876                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(win));
1877                 if (header) {
1878                         /* Get message uid */
1879                         msg_uid = modest_tny_send_queue_get_msg_id (header);
1880                         g_object_unref (header);
1881                 }
1882         }
1883
1884         /* Search on send queues cache */
1885         cache_mgr = modest_runtime_get_cache_mgr ();
1886         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
1887                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
1888
1889         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
1890
1891         for (node = send_queues; node != NULL && !result; node = g_slist_next (node)) {
1892                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
1893
1894                 /* Check if msg uid is being processed inside send queue */
1895                 result = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
1896         }
1897
1898
1899         /* Free */
1900         g_free(msg_uid);
1901         g_object_unref(header_list);
1902         g_object_unref(iter);
1903         g_slist_free (send_queues);
1904
1905         return result;
1906 }
1907
1908
1909 static gboolean
1910 _sending_in_progress (ModestWindow *win)
1911 {
1912         gboolean result = FALSE;
1913
1914         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1915
1916         /* Check if send operation is in progress */
1917         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
1918
1919         return result;
1920 }
1921
1922 static gboolean
1923 _invalid_folder_for_purge (ModestWindow *win,
1924                            ModestDimmingRule *rule)
1925 {
1926         TnyMsg *msg = NULL;
1927         TnyFolder *folder = NULL;
1928         TnyAccount *account = NULL;
1929         gboolean result = FALSE;
1930
1931         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1932
1933                 /* Get folder and account of message */
1934                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1935                 g_return_val_if_fail(msg != NULL, TRUE);
1936                 folder = tny_msg_get_folder (msg);
1937                 if (folder == NULL) {
1938                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1939                         goto frees;
1940                 }
1941                 g_object_unref (msg);
1942         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1943                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1944                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
1945                 if (!folder_view)
1946                         return FALSE;
1947                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
1948                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
1949                         goto frees;
1950         } else {
1951                 g_return_val_if_reached (FALSE);
1952         }
1953         account = modest_tny_folder_get_account (folder);
1954         if (account == NULL) goto frees;
1955
1956         /* Check account */
1957         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1958                 TnyFolderType types[2];
1959                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1960                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1961
1962                 if (_selected_folder_is_any_of_type (win, types, 2)) {
1963                         result = TRUE;
1964                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
1965                 } else {
1966                         /* We're currently disabling purge in any local store */
1967                         result = TRUE;
1968                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1969                 }
1970         } else {
1971                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
1972                 /* If it's POP then dim */
1973                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1974                     MODEST_PROTOCOL_STORE_POP) {
1975                         GList *attachments = NULL;
1976                         gint n_selected = 0;
1977                         result = TRUE;
1978
1979                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
1980                          * murrayc */
1981                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1982                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1983                                 n_selected = g_list_length (attachments);
1984                                 g_list_free (attachments);
1985                         }
1986
1987                         modest_dimming_rule_set_notification (rule,
1988                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
1989                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
1990                                                                         n_selected));
1991                 }
1992         }
1993
1994 frees:
1995         if (folder != NULL)
1996                 g_object_unref (folder);
1997         if (account != NULL)
1998                 g_object_unref (account);
1999
2000         return result;
2001 }
2002
2003 static gboolean
2004 _transfer_mode_enabled (ModestWindow *win)
2005 {
2006         gboolean result = FALSE;
2007
2008         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2009
2010         /* Check dimming */
2011         result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2012
2013         return result;
2014 }