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-text-utils.h"
  39 #include <widgets/modest-attachments-view.h>
  40 #include <modest-runtime.h>
  41 #include <tny-simple-list.h>
  42
  43
  44 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  45 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  46 static gboolean _invalid_attach_selected (ModestWindow *win, gboolean unique, gboolean for_view, ModestDimmingRule *rule);
  47 static gboolean _clipboard_is_empty (ModestWindow *win);
  48 static gboolean _invalid_clipboard_selected (ModestWindow *win);
  49 static gboolean _already_opened_msg (ModestWindow *win, guint *n_messages);
  50 static gboolean _selected_msg_marked_as (ModestWindow *win, TnyHeaderFlags mask, gboolean opposite);
  51 static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
  52 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  53 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  54 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  55 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  56 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  57 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  58 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  59 static gboolean _msg_download_completed (ModestMainWindow *win);
  60 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  61 static gboolean _sending_in_progress (ModestWindow *win);
  62 static gboolean _marked_as_deleted (ModestWindow *win);
  63 static gboolean _invalid_attachment_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  64
  65
  66 gboolean
  67 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
  68 {
  69         ModestDimmingRule *rule = NULL;
  70         gboolean dimmed = FALSE;
  71
  72         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
  73         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
  74         rule = MODEST_DIMMING_RULE (user_data);
  75
  76         /* Check dimmed rule */
  77         if (!dimmed) {
  78                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
  79                 if (dimmed)
  80                         modest_dimming_rule_set_notification (rule, "");
  81         }
  82
  83         return dimmed;
  84 }
  85
  86 gboolean
  87 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
  88 {
  89         ModestDimmingRule *rule = NULL;
  90         GtkWidget *folder_view = NULL;
  91         TnyFolderStore *parent_folder = NULL;
  92         gboolean dimmed = FALSE;
  93
  94         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
  95         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
  96         rule = MODEST_DIMMING_RULE (user_data);
  97
  98         /* Get selected folder as parent of new folder to create */
  99         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 100                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 101         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 102         if (!parent_folder)
 103                 return TRUE;
 104
 105         if (TNY_IS_ACCOUNT (parent_folder)) {
 106                 /* If it's the local account then do not dim */
 107                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 108                         dimmed = FALSE;
 109                 } else {
 110                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 111                         /* If it's POP then dim */
 112                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 113                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 114                         if (dimmed)
 115                                 modest_dimming_rule_set_notification (rule, "");
 116                 }
 117         } else {
 118                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 119
 120                 TnyFolderType types[3];
 121
 122                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 123                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 124                 types[2] = TNY_FOLDER_TYPE_SENT;
 125
 126                 /* Apply folder rules */
 127                 if (!dimmed) {
 128                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 129                         if (dimmed)
 130                                 modest_dimming_rule_set_notification (rule, "");
 131                 }
 132                 if (!dimmed) {
 133                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 134                         if (dimmed)
 135                                 modest_dimming_rule_set_notification (rule, "");
 136                 }
 137         }
 138         g_object_unref (parent_folder);
 139
 140         return dimmed;
 141 }
 142
 143 gboolean
 144 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 145 {
 146         ModestDimmingRule *rule = NULL;
 147         TnyFolderType types[5];
 148         gboolean dimmed = FALSE;
 149
 150         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 151         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 152         rule = MODEST_DIMMING_RULE (user_data);
 153
 154         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 155         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 156         types[2] = TNY_FOLDER_TYPE_SENT;
 157         types[3] = TNY_FOLDER_TYPE_INBOX;
 158         types[4] = TNY_FOLDER_TYPE_ROOT;
 159
 160
 161         /* Check dimmed rule */
 162         if (!dimmed) {
 163                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 164                 if (dimmed)
 165                         modest_dimming_rule_set_notification (rule, "");
 166         }
 167         if (!dimmed) {
 168                 dimmed = _selected_folder_is_any_of_type (win, types, 5);
 169                 if (dimmed)
 170                         modest_dimming_rule_set_notification (rule, "");
 171         }
 172         if (!dimmed) {
 173                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 174                 if (dimmed)
 175                         modest_dimming_rule_set_notification (rule, "");
 176         }
 177         if (!dimmed) {
 178                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 179                 if (dimmed)
 180                         modest_dimming_rule_set_notification (rule, "");
 181         }
 182
 183         return dimmed;
 184 }
 185
 186 gboolean
 187 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 188 {
 189         ModestDimmingRule *rule = NULL;
 190         gboolean dimmed = FALSE;
 191
 192         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 193         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 194         rule = MODEST_DIMMING_RULE (user_data);
 195
 196         /* Check dimmed rule */
 197         if (!dimmed) {
 198                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 199                 if (dimmed)
 200                         modest_dimming_rule_set_notification (rule, "");
 201         }
 202
 203         return dimmed;
 204
 205 }
 206
 207 gboolean
 208 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 209 {
 210         ModestDimmingRule *rule = NULL;
 211         TnyFolderType types[3];
 212         gboolean dimmed = FALSE;
 213
 214         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 215         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 216         rule = MODEST_DIMMING_RULE (user_data);
 217
 218         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 219         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 220         types[2] = TNY_FOLDER_TYPE_SENT;
 221
 222         /* Check dimmed rule */
 223         if (!dimmed) {
 224                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 225                 if (dimmed)
 226                         modest_dimming_rule_set_notification (rule, "");
 227         }
 228         if (!dimmed) {
 229                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 230                 if (dimmed)
 231                         modest_dimming_rule_set_notification (rule, "");
 232         }
 233         if (!dimmed) {
 234                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 235                 if (dimmed)
 236                         modest_dimming_rule_set_notification (rule, "");
 237         }
 238
 239         return dimmed;
 240 }
 241
 242 gboolean
 243 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 244 {
 245         ModestDimmingRule *rule = NULL;
 246         gboolean dimmed = FALSE;
 247
 248         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 249         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 250         rule = MODEST_DIMMING_RULE (user_data);
 251
 252         /* Check dimmed rule */
 253         if (!dimmed) {
 254                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 255         }
 256         if (!dimmed) {
 257                 dimmed = _selected_msg_sent_in_progress (win);
 258                 if (dimmed)
 259                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 260         }
 261
 262         return dimmed;
 263 }
 264
 265 gboolean
 266 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 267 {
 268         ModestDimmingRule *rule = NULL;
 269         gboolean dimmed = FALSE;
 270         TnyFolderType types[3];
 271
 272         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 273         rule = MODEST_DIMMING_RULE (user_data);
 274
 275         /* main window dimming rules */
 276         if (MODEST_IS_MAIN_WINDOW(win)) {
 277
 278                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 279                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 280                 types[2] = TNY_FOLDER_TYPE_ROOT;
 281
 282                 /* Check dimmed rule */
 283                 if (!dimmed) {
 284                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 285                         if (dimmed)
 286                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 287                 }
 288                 if (!dimmed) {
 289                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 290                         if (dimmed)
 291                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 292                 }
 293                 if (!dimmed) {
 294                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 295                 }
 296         /* msg view window dimming rules */
 297         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 298
 299                 /* Check dimmed rule */
 300                 if (!dimmed) {
 301                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 302                         if (dimmed)
 303                                 modest_dimming_rule_set_notification (rule, "");
 304                 }
 305         }
 306
 307         return dimmed;
 308 }
 309
 310
 311 gboolean
 312 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 313 {
 314         ModestDimmingRule *rule = NULL;
 315         gboolean dimmed = FALSE;
 316
 317         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 318         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 319         rule = MODEST_DIMMING_RULE (user_data);
 320
 321         /* Check dimmed rule */
 322         if (!dimmed) {
 323                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 324         }
 325         if (!dimmed) {
 326                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 327                 if (dimmed)
 328                         modest_dimming_rule_set_notification (rule, "");
 329         }
 330
 331         return dimmed;
 332 }
 333
 334 gboolean
 335 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 336 {
 337         gboolean dimmed = FALSE;
 338
 339         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 340
 341         /* Check dimmed rule */
 342         if (!dimmed)
 343                 dimmed = TRUE;
 344
 345         return dimmed;
 346 }
 347
 348 gboolean
 349 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 350 {
 351         ModestDimmingRule *rule = NULL;
 352         guint n_messages = 0;
 353         gboolean dimmed = FALSE;
 354
 355         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 356         rule = MODEST_DIMMING_RULE (user_data);
 357
 358         /* Check dimmed rule */
 359         if (MODEST_IS_MAIN_WINDOW (win)) {
 360                 if (!dimmed) {
 361                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 362                         if (dimmed)
 363                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 364                 }
 365                 if (!dimmed) {
 366                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 367                 }
 368                 if (!dimmed) {
 369                         dimmed = _already_opened_msg (win, &n_messages);
 370                         if (dimmed) {
 371                                 gchar *num = g_strdup_printf ("%d", n_messages);
 372                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), n_messages);
 373                                 modest_dimming_rule_set_notification (rule, message);
 374                                 g_free(message);
 375                                 g_free(num);
 376                         }
 377                 }
 378                 if (!dimmed) {
 379                         dimmed = _marked_as_deleted (win);
 380                         if (dimmed)
 381                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_delete"));
 382                 }
 383                 if (!dimmed) {
 384                         dimmed = _selected_msg_sent_in_progress (win);
 385                         if (dimmed)
 386                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_delete"));
 387                 }
 388         }
 389         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 390                 if (!dimmed) {
 391                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 392                         if (dimmed) {
 393                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), "1");
 394                                 modest_dimming_rule_set_notification (rule, message);
 395                                 g_free(message);
 396                         }
 397                 }
 398         }
 399
 400         return dimmed;
 401 }
 402
 403 gboolean
 404 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 405 {
 406         ModestDimmingRule *rule = NULL;
 407         GtkWidget *header_view = NULL;
 408         gboolean dimmed = FALSE;
 409
 410         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 411         rule = MODEST_DIMMING_RULE (user_data);
 412
 413         /* main window dimming rules */
 414         if (MODEST_IS_MAIN_WINDOW(win)) {
 415
 416                 /* Check dimmed rule */
 417                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 418                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 419
 420                 /* If the header view has the focus: */
 421                 if (header_view && gtk_widget_is_focus (header_view)) {
 422                         /* Check dimmed rule */
 423                         if (!dimmed)
 424                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 425                 }
 426                 else {
 427                         /* If the folder view has the focus: */
 428                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 429                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 430                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 431                                 TnyFolderStore *folder_store
 432                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 433                                 if (folder_store) {
 434                                         /* Only enable for folders, not accounts,
 435                                          * though the UI spec is not clear about that.
 436                                          * If we enable this for accounts then we must
 437                                          * add code to handle them in modest_ui_actions_on_details(). */
 438                                         if (!TNY_IS_FOLDER(folder_store)) {
 439                                                 dimmed = TRUE;
 440                                                 modest_dimming_rule_set_notification (rule, "");
 441                                         }
 442
 443                                         g_object_unref (folder_store);
 444                                 }
 445                         }
 446
 447                 }
 448
 449         /* msg view window dimming rules */
 450         } else {
 451
 452                 /* Check dimmed rule */
 453                 if (!dimmed) {
 454                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 455                         if (dimmed)
 456                                 modest_dimming_rule_set_notification (rule, "");
 457                 }
 458         }
 459
 460         return dimmed;
 461 }
 462
 463
 464 gboolean
 465 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 466 {
 467         ModestDimmingRule *rule = NULL;
 468         TnyHeaderFlags flags;
 469         gboolean dimmed = FALSE;
 470
 471         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 472         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 473         rule = MODEST_DIMMING_RULE (user_data);
 474
 475         flags = TNY_HEADER_FLAG_SEEN;
 476
 477         /* Check dimmed rule */
 478         if (!dimmed) {
 479                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 480         }
 481         if (!dimmed) {
 482                 dimmed = _selected_msg_marked_as (win, flags, FALSE);
 483                 if (dimmed)
 484                         modest_dimming_rule_set_notification (rule, "");
 485         }
 486
 487         return dimmed;
 488 }
 489
 490 gboolean
 491 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 492 {
 493         ModestDimmingRule *rule = NULL;
 494         TnyHeaderFlags flags;
 495         gboolean dimmed = FALSE;
 496
 497         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 498         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 499         rule = MODEST_DIMMING_RULE (user_data);
 500
 501         flags = TNY_HEADER_FLAG_SEEN;
 502
 503         /* Check dimmed rule */
 504         if (!dimmed)
 505                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 506         if (!dimmed) {
 507                 dimmed = _selected_msg_marked_as (win, flags, TRUE);
 508                 if (dimmed)
 509                         modest_dimming_rule_set_notification (rule, "");
 510         }
 511
 512         return dimmed;
 513 }
 514
 515 gboolean
 516 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 517 {
 518         ModestDimmingRule *rule = NULL;
 519         gboolean dimmed = FALSE;
 520
 521         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 522         rule = MODEST_DIMMING_RULE (user_data);
 523
 524         if (MODEST_IS_MAIN_WINDOW (win))
 525                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 526         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 527                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 528
 529         return dimmed;
 530 }
 531
 532
 533 gboolean
 534 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 535 {
 536         GtkWidget *folder_view = NULL;
 537         GtkWidget *header_view = NULL;
 538         ModestDimmingRule *rule = NULL;
 539         const gchar *message = NULL;
 540         gboolean dimmed = FALSE;
 541
 542         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 543         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 544         rule = MODEST_DIMMING_RULE (user_data);
 545
 546         /* Get the folder view */
 547         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 548                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 549
 550         /* Get header view */
 551         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 552                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 553
 554         /* Check diming rules for folders and messages transfer  */
 555         if (!dimmed) {
 556                 dimmed = _selected_folder_not_writeable(MODEST_MAIN_WINDOW(win));
 557                 if (dimmed) {
 558                         if (gtk_widget_is_focus (folder_view))
 559                                 message = _("mail_in_ui_folder_move_target_error");
 560                         else
 561                                 message = ngettext ("mail_in_ui_folder_move_target_error", "mail_in_ui_folder_move_targets_error",
 562                                                     modest_header_view_count_selected_headers (MODEST_HEADER_VIEW(header_view)) > 1);
 563                 }
 564         }
 565         if (!dimmed) {
 566                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 567
 568         }
 569
 570         return dimmed;
 571 }
 572
 573 gboolean
 574 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 575 {
 576         ModestDimmingRule *rule = NULL;
 577         gboolean dimmed = FALSE;
 578
 579         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 580         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 581         rule = MODEST_DIMMING_RULE (user_data);
 582
 583         /* Check dimmed rule */
 584         if (!dimmed) {
 585                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 586                 if (dimmed)
 587                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 588
 589         }
 590
 591         return dimmed;
 592 }
 593
 594 gboolean
 595 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
 596 {
 597         ModestDimmingRule *rule = NULL;
 598         TnyFolderType types[3];
 599         gboolean dimmed = FALSE;
 600
 601         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 602         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 603         rule = MODEST_DIMMING_RULE (user_data);
 604
 605         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 606         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 607         types[2] = TNY_FOLDER_TYPE_SENT;
 608
 609         /* Check dimmed rule */
 610         if (!dimmed) {
 611                 dimmed = _clipboard_is_empty (win);
 612                 if (dimmed)
 613                         modest_dimming_rule_set_notification (rule, "");
 614         }
 615         if (!dimmed) {
 616                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 617                 if (dimmed)
 618                         modest_dimming_rule_set_notification (rule, "");
 619         }
 620         if (!dimmed) {
 621                 dimmed = _selected_folder_is_same_as_source (win);
 622                 if (dimmed)
 623                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
 624         }
 625
 626         return dimmed;
 627 }
 628
 629
 630 gboolean
 631 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
 632 {
 633         ModestDimmingRule *rule = NULL;
 634         gboolean dimmed = FALSE;
 635
 636         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 637         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 638         rule = MODEST_DIMMING_RULE (user_data);
 639
 640         /* Check dimmed rule */
 641         if (!dimmed) {
 642                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 643                 if (dimmed)
 644                         modest_dimming_rule_set_notification (rule, "");
 645         }
 646
 647         return dimmed;
 648 }
 649
 650 gboolean
 651 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
 652 {
 653         ModestDimmingRule *rule = NULL;
 654         gboolean dimmed = FALSE;
 655
 656         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 657         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 658         rule = MODEST_DIMMING_RULE (user_data);
 659
 660         /* Check dimmed rule */
 661         if (!dimmed)
 662                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, rule);
 663
 664         return dimmed;
 665 }
 666
 667 gboolean
 668 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
 669 {
 670         ModestDimmingRule *rule = NULL;
 671         gboolean dimmed = FALSE;
 672
 673         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 674         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 675         rule = MODEST_DIMMING_RULE (user_data);
 676
 677         /* Check dimmed rule */
 678         if (!dimmed)
 679                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, rule);
 680
 681         return dimmed;
 682 }
 683
 684 gboolean
 685 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
 686 {
 687         ModestDimmingRule *rule = NULL;
 688         gboolean dimmed = FALSE;
 689
 690         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 691         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 692         rule = MODEST_DIMMING_RULE (user_data);
 693
 694         /* Check dimmed rule */
 695         if (!dimmed) {
 696                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, rule);
 697         }
 698         if (!dimmed) {
 699                 dimmed = _invalid_attachment_for_purge (win, rule);
 700         }
 701
 702
 703         return dimmed;
 704 }
 705
 706 gboolean
 707 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
 708 {
 709         ModestDimmingRule *rule = NULL;
 710         gboolean dimmed = FALSE;
 711
 712         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 713         rule = MODEST_DIMMING_RULE (user_data);
 714
 715         /* Check dimmed rule */
 716         if (!dimmed) {
 717                 dimmed = _clipboard_is_empty (win);
 718                 if (dimmed)
 719                         modest_dimming_rule_set_notification (rule, "");
 720         }
 721
 722         return dimmed;
 723 }
 724
 725 gboolean
 726 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
 727 {
 728         ModestDimmingRule *rule = NULL;
 729         gboolean dimmed = FALSE;
 730
 731         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 732         rule = MODEST_DIMMING_RULE (user_data);
 733
 734         /* Check common dimming rules */
 735         if (!dimmed) {
 736                 dimmed = _invalid_clipboard_selected (win);
 737                 if (dimmed)
 738                         modest_dimming_rule_set_notification (rule, "");
 739         }
 740
 741         /* Check window specific dimming rules */
 742         if (MODEST_IS_MAIN_WINDOW (win)) {
 743                 if (!dimmed) {
 744                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 745                         if (dimmed)
 746                                 modest_dimming_rule_set_notification (rule, "");
 747                 }
 748                 if (!dimmed) {
 749                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 750                         if (dimmed)
 751                                 modest_dimming_rule_set_notification (rule, "");
 752                 }
 753                 if (!dimmed) {
 754                         dimmed = _selected_msg_sent_in_progress (win);
 755                         if (dimmed)
 756                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
 757                 }
 758         }
 759
 760         return dimmed;
 761 }
 762
 763 gboolean
 764 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
 765 {
 766         ModestDimmingRule *rule = NULL;
 767         gboolean dimmed = FALSE;
 768
 769         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 770         rule = MODEST_DIMMING_RULE (user_data);
 771
 772         /* Check common dimming rules */
 773         if (!dimmed) {
 774                 dimmed = _invalid_clipboard_selected (win);
 775                 if (dimmed)
 776                         modest_dimming_rule_set_notification (rule, "");
 777         }
 778
 779         /* Check window specific dimming rules */
 780         if (MODEST_IS_MAIN_WINDOW (win)) {
 781                 if (!dimmed) {
 782                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 783                         if (dimmed)
 784                                 modest_dimming_rule_set_notification (rule, "");
 785                 }
 786                 if (!dimmed) {
 787                         dimmed = _selected_msg_sent_in_progress (win);
 788                         if (dimmed)
 789                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
 790                 }
 791         }
 792
 793         return dimmed;
 794 }
 795
 796 gboolean
 797 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
 798 {
 799         ModestDimmingRule *rule = NULL;
 800         gboolean dimmed = FALSE;
 801
 802         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 803         rule = MODEST_DIMMING_RULE (user_data);
 804
 805         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 806
 807         /* Check dimmed rule */
 808         if (!dimmed) {
 809                 dimmed = modest_msg_view_window_first_message_selected (MODEST_MSG_VIEW_WINDOW(win));
 810                 if (dimmed)
 811                         modest_dimming_rule_set_notification (rule, "");
 812         }
 813
 814         return dimmed;
 815 }
 816
 817 gboolean
 818 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
 819 {
 820         ModestDimmingRule *rule = NULL;
 821         gboolean dimmed = FALSE;
 822
 823         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 824         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 825         rule = MODEST_DIMMING_RULE (user_data);
 826
 827         /* Check dimmed rule */
 828         if (!dimmed) {
 829                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW(win));
 830                 if (dimmed)
 831                         modest_dimming_rule_set_notification (rule, "");
 832         }
 833
 834         return dimmed;
 835 }
 836
 837
 838 gboolean
 839 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
 840 {
 841         const gboolean dimmed =
 842                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 843                         TRUE);
 844
 845         return dimmed;
 846 }
 847
 848 gboolean
 849 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
 850 {
 851         gboolean dimmed = FALSE;
 852
 853         /* Check dimmed rule */
 854         if (!dimmed)
 855                 dimmed = !_sending_in_progress (win);
 856
 857         return dimmed;
 858 }
 859
 860 gboolean
 861 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
 862 {
 863         ModestDimmingRule *rule = NULL;
 864         gboolean dimmed = FALSE;
 865
 866         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 867         rule = MODEST_DIMMING_RULE (user_data);
 868
 869         /* Check dimmed rule */
 870         if (!dimmed) {
 871                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 872                                                           TRUE);
 873                 if (dimmed)
 874                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 875         }
 876
 877         return dimmed;
 878 }
 879
 880 gboolean
 881 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
 882 {
 883         ModestDimmingRule *rule = NULL;
 884         gboolean dimmed = FALSE;
 885
 886         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 887         rule = MODEST_DIMMING_RULE (user_data);
 888
 889         /* Check dimmed rule */
 890         if (!dimmed) {
 891                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
 892                 gchar *selection = NULL;
 893                 selection = gtk_clipboard_wait_for_text (clipboard);
 894
 895                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection)));
 896         }
 897
 898         return dimmed;
 899 }
 900
 901 /* *********************** static utility functions ******************** */
 902
 903 static gboolean
 904 _marked_as_deleted (ModestWindow *win)
 905 {
 906         gboolean result = FALSE;
 907         TnyHeaderFlags flags;
 908
 909         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 910
 911         flags = TNY_HEADER_FLAG_DELETED;
 912
 913         /* Check dimmed rule */
 914         result = _selected_msg_marked_as (win, flags, FALSE);
 915
 916         return result;
 917 }
 918
 919 static gboolean
 920 _selected_folder_not_writeable (ModestMainWindow *win)
 921 {
 922         GtkWidget *folder_view = NULL;
 923         TnyFolderStore *parent_folder = NULL;
 924         ModestTnyFolderRules rules;
 925         gboolean result = FALSE;
 926
 927         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 928
 929         /* Get folder view */
 930         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 931                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 932         /* If no folder view, always dimmed */
 933         if (!folder_view)
 934                 return TRUE;
 935
 936         /* Get selected folder as parent of new folder to create */
 937         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 938         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
 939                 if (parent_folder)
 940                         g_object_unref (parent_folder);
 941                 return TRUE;
 942         }
 943
 944         /* Check dimmed rule */
 945         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
 946         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
 947
 948         /* free */
 949         g_object_unref (parent_folder);
 950
 951         return result;
 952 }
 953
 954 static gboolean
 955 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
 956 {
 957         TnyFolderType types[2];
 958         gboolean result = FALSE;
 959
 960         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 961
 962         types[0] = TNY_FOLDER_TYPE_ROOT;
 963         types[1] = TNY_FOLDER_TYPE_INBOX;
 964
 965         /* Check folder type */
 966         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
 967
 968         /* Check pop and MMC accounts */
 969         if (!result) {
 970                 result = _selected_folder_is_MMC_or_POP_root (win);
 971         }
 972
 973         return result;
 974 }
 975
 976
 977 static gboolean
 978 _selected_folder_is_root (ModestMainWindow *win)
 979 {
 980         TnyFolderType types[1];
 981         gboolean result = FALSE;
 982
 983         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 984
 985         types[0] = TNY_FOLDER_TYPE_ROOT;
 986
 987         /* Check folder type */
 988         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
 989
 990         /* Check pop and MMC accounts */
 991         if (!result) {
 992                 result = _selected_folder_is_MMC_or_POP_root (win);
 993         }
 994
 995         return result;
 996 }
 997
 998 static gboolean
 999 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1000 {
1001         GtkWidget *folder_view = NULL;
1002         TnyFolderStore *parent_folder = NULL;
1003         gboolean result = FALSE;
1004
1005         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1006                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1007         /* Get selected folder as parent of new folder to create */
1008         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1009         if (!parent_folder)
1010                 return TRUE;
1011
1012         if (TNY_IS_ACCOUNT (parent_folder)) {
1013                 /* If it's the local account then do not dim */
1014                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1015                         result = FALSE;
1016                 } else {
1017                                 /* If it's the MMC root folder then dim it */
1018                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1019                                         result = TRUE;
1020                         } else {
1021                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1022                                 /* If it's POP then dim */
1023                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1024                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1025                         }
1026                 }
1027         }
1028         g_object_unref (parent_folder);
1029
1030         return result;
1031 }
1032
1033
1034
1035
1036 static gboolean
1037 _selected_folder_is_empty (ModestMainWindow *win)
1038 {
1039         GtkWidget *folder_view = NULL;
1040         TnyFolderStore *folder = NULL;
1041         gboolean result = FALSE;
1042
1043         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1044
1045         /* Get folder view */
1046         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1047                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1048         /* If no folder view, always dimmed */
1049         if (!folder_view)
1050                 return TRUE;
1051
1052         /* Get selected folder as parent of new folder to create */
1053         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1054         if (!(folder && TNY_IS_FOLDER(folder))) {
1055                 if (folder)
1056                         g_object_unref (folder);
1057                 return TRUE;
1058         }
1059
1060         /* Check folder type */
1061         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1062
1063         /* free */
1064         g_object_unref (folder);
1065
1066         return result;
1067 }
1068
1069 static gboolean
1070 _selected_folder_is_same_as_source (ModestWindow *win)
1071 {
1072         ModestEmailClipboard *clipboard = NULL;
1073         GtkWidget *folder_view = NULL;
1074         TnyFolderStore *folder = NULL;
1075         gboolean result = FALSE;
1076
1077         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1078
1079         /* Get folder view */
1080         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1081                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1082         if (!folder_view)
1083                 return FALSE;
1084
1085         /* Get selected folder as destination folder */
1086         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1087         if (!(folder && TNY_IS_FOLDER(folder))) {
1088                 result = FALSE;
1089                 goto frees;
1090         }
1091
1092         /* Check clipboard is cleared */
1093         clipboard = modest_runtime_get_email_clipboard ();
1094         if (modest_email_clipboard_cleared (clipboard)) {
1095                 result = FALSE;
1096                 goto frees;
1097         }
1098
1099         /* Check source folder */
1100         result = modest_email_clipboard_check_source_folder (clipboard,
1101                                                              (const TnyFolder *) folder);
1102
1103         /* Free */
1104  frees:
1105         g_object_unref (folder);
1106
1107         return result;
1108 }
1109
1110 static gboolean
1111 _selected_folder_is_any_of_type (ModestWindow *win,
1112                                  TnyFolderType types[],
1113                                  guint ntypes)
1114 {
1115         GtkWidget *folder_view = NULL;
1116         TnyFolderStore *folder = NULL;
1117         TnyFolderType folder_type;
1118         guint i=0;
1119         gboolean result = FALSE;
1120
1121         /*Get curent folder */
1122         if (MODEST_IS_MAIN_WINDOW(win)) {
1123
1124                 /* Get folder view */
1125                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1126                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1127                 /* If no folder view, always dimmed */
1128                 if (!folder_view)
1129                         return TRUE;
1130
1131                 /* Get selected folder as parent of new folder to create */
1132                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1133
1134                 if (!(folder && TNY_IS_FOLDER(folder))) {
1135                         if (folder)
1136                                 g_object_unref (folder);
1137                         return TRUE;
1138                 }
1139
1140                 /* Check folder type */
1141                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1142         }
1143         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1144                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1145                 for (i=0; i < ntypes; i++) {
1146                         result = result || folder_type == types[i];
1147                 }
1148         }
1149
1150
1151         /* free */
1152         g_object_unref (folder);
1153
1154         return result;
1155 }
1156
1157 static gboolean
1158 _folder_is_any_of_type (TnyFolder *folder,
1159                         TnyFolderType types[],
1160                         guint ntypes)
1161 {
1162         TnyFolderType folder_type;
1163         gboolean result = FALSE;
1164         guint i;
1165
1166         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1167
1168         /* Get folder type */
1169         if (modest_tny_folder_is_local_folder (folder))
1170                 folder_type = modest_tny_folder_get_local_folder_type (folder);
1171         else
1172                 folder_type = modest_tny_folder_guess_folder_type (folder);
1173
1174         /* Check foler type */
1175         for (i=0; i < ntypes; i++) {
1176                 result = result || folder_type == types[i];
1177         }
1178
1179         return result;
1180 }
1181
1182 static gboolean
1183 _clipboard_is_empty (ModestWindow *win)
1184 {
1185         gboolean result = FALSE;
1186
1187         if (MODEST_IS_MAIN_WINDOW (win)) {
1188                 ModestEmailClipboard *clipboard = NULL;
1189                 clipboard = modest_runtime_get_email_clipboard ();
1190                 if (modest_email_clipboard_cleared (clipboard))
1191                  result = TRUE;
1192         }
1193
1194         return result;
1195 }
1196
1197 static gboolean
1198 _invalid_clipboard_selected (ModestWindow *win)
1199 {
1200         gboolean result = FALSE;
1201
1202         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1203                 GtkClipboard *clipboard = NULL;
1204                 gchar *selection = NULL;
1205                 GtkWidget *focused = NULL;
1206
1207                 /* Get clipboard selection*/
1208                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1209                 selection = gtk_clipboard_wait_for_text (clipboard);
1210
1211                 /* Get focuesed widget */
1212                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1213
1214                 /* Check dimming */
1215                 result = ((selection == NULL) ||
1216                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1217         }
1218         else if (MODEST_IS_MAIN_WINDOW (win)) {
1219                 GtkWidget *header_view = NULL;
1220
1221                 /* Get header view to check selected messages */
1222                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1223                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1224
1225                 /* Check dimming */
1226                 result = !modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));
1227         }
1228
1229         return result;
1230 }
1231
1232
1233 static gboolean
1234 _invalid_attach_selected (ModestWindow *win,
1235                           gboolean unique,
1236                           gboolean for_view,
1237                           ModestDimmingRule *rule)
1238 {
1239         GList *attachments, *node;
1240         gint n_selected;
1241         TnyHeaderFlags flags;
1242         gboolean nested_attachments = FALSE;
1243         gboolean selected_messages = FALSE;
1244         gboolean result = FALSE;
1245
1246         if (MODEST_IS_MAIN_WINDOW (win)) {
1247                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1248                 if (!result)
1249                         result = _selected_msg_marked_as (win, flags, TRUE);
1250         }
1251         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1252
1253                 /* Get selected atachments */
1254                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1255                 n_selected = g_list_length (attachments);
1256
1257                 /* Check unique */
1258                 if (!result) {
1259                         if (unique)
1260                                 result = n_selected != 1;
1261                         else
1262
1263                                 result = n_selected < 1;
1264                 }
1265
1266                 /* Check attached type (view operation not required) */
1267                 if (!result && !for_view)  {
1268                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1269                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1270                                 TnyList *nested_list = tny_simple_list_new ();
1271                                 if (TNY_IS_MSG (mime_part)) {
1272                                         selected_messages = TRUE;
1273                                         result = TRUE;
1274                                 }
1275                                 tny_mime_part_get_parts (mime_part, nested_list);
1276                                 if (tny_list_get_length (nested_list) > 0) {
1277                                 nested_attachments = TRUE;
1278                                 result = TRUE;
1279                                 }
1280                                 g_object_unref (nested_list);
1281                         }
1282                 }
1283
1284                 /* Set notifications */
1285                 if (result && rule != NULL) {
1286                         if (selected_messages) {
1287                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1288                         } else if (nested_attachments) {
1289                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1290                         } else if (n_selected == 0) {
1291                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1292                         } else if (unique) {
1293                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1294                         }
1295                 }
1296
1297                 /* Free */
1298                 g_list_free (attachments);
1299         }
1300
1301         return result;
1302 }
1303
1304 static gboolean
1305 _invalid_msg_selected (ModestMainWindow *win,
1306                        gboolean unique,
1307                        ModestDimmingRule *rule)
1308 {
1309         GtkWidget *header_view = NULL;
1310         GtkWidget *folder_view = NULL;
1311         gboolean selected_headers = FALSE;
1312         gboolean result = FALSE;
1313
1314         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1315         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1316
1317         /* Get header view to check selected messages */
1318         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1319                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1320
1321         /* Get folder view to check focus */
1322         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1323                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1324
1325         /* Get selected headers */
1326         selected_headers = modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));
1327
1328         /* Check dimmed rule (TODO: check focus on widgets */
1329         if (!result) {
1330                 result = ((!selected_headers) ||
1331                           (gtk_widget_is_focus (folder_view)));
1332                 if (result)
1333                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1334         }
1335         if (!result && unique) {
1336                 result = modest_header_view_count_selected_headers (MODEST_HEADER_VIEW(header_view)) > 1;
1337                 if (result)
1338                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1339         }
1340
1341         return result;
1342 }
1343
1344 static gboolean
1345 _already_opened_msg (ModestWindow *win,
1346                      guint *n_messages)
1347 {
1348         ModestWindow *window = NULL;
1349         ModestWindowMgr *mgr = NULL;
1350         GtkWidget *header_view = NULL;
1351         TnyList *selected_headers = NULL;
1352         TnyIterator *iter = NULL;
1353         TnyHeader *header = NULL;
1354         gboolean result = TRUE;
1355
1356         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1357
1358         /* Get header view to check selected messages */
1359         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1360                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1361
1362
1363         /* Check no selection */
1364         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1365             return FALSE;
1366
1367         /* Get selected headers */
1368         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1369         if (selected_headers == NULL)
1370                 return FALSE;
1371
1372         *n_messages = tny_list_get_length (selected_headers);
1373
1374         /* Check dimmed rule (TODO: check focus on widgets */
1375         mgr = modest_runtime_get_window_mgr ();
1376         iter = tny_list_create_iterator (selected_headers);
1377         while (!tny_iterator_is_done (iter) && result) {
1378                 header = TNY_HEADER (tny_iterator_get_current (iter));
1379                 window = modest_window_mgr_find_window_by_header (mgr, header);
1380                 result = result && (window != NULL);
1381
1382                 g_object_unref (header);
1383                 tny_iterator_next (iter);
1384         }
1385
1386         /* free */
1387         if (selected_headers != NULL)
1388                 g_object_unref (selected_headers);
1389         if (iter != NULL)
1390                 g_object_unref (iter);
1391
1392         return result;
1393 }
1394
1395 static gboolean
1396 _selected_msg_marked_as (ModestWindow *win,
1397                          TnyHeaderFlags mask,
1398                          gboolean opposite)
1399 {
1400         GtkWidget *header_view = NULL;
1401         TnyList *selected_headers = NULL;
1402         TnyIterator *iter = NULL;
1403         TnyHeader *header = NULL;
1404         TnyHeaderFlags flags;
1405         gboolean result = FALSE;
1406
1407         /* Get header view to check selected messages */
1408         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1409                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1410
1411         /* Check no selection */
1412         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1413             return TRUE;
1414
1415         /* Get selected headers */
1416         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1417         if (selected_headers == NULL)
1418                 return TRUE;
1419
1420         /* Call the function for each header */
1421         iter = tny_list_create_iterator (selected_headers);
1422         while (!tny_iterator_is_done (iter) && !result) {
1423                 header = TNY_HEADER (tny_iterator_get_current (iter));
1424
1425                 flags = tny_header_get_flags (header);
1426                 if (opposite)
1427                         result = (flags & mask) == 0;
1428                 else
1429                         result = (flags & mask) != 0;
1430
1431                 g_object_unref (header);
1432                 tny_iterator_next (iter);
1433         }
1434
1435         /* free */
1436         if (selected_headers != NULL)
1437                 g_object_unref (selected_headers);
1438         if (iter != NULL)
1439                 g_object_unref (iter);
1440
1441         return result;
1442 }
1443
1444 static gboolean
1445 _msg_download_in_progress (ModestMsgViewWindow *win)
1446 {
1447         gboolean result = FALSE;
1448
1449         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1450
1451         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1452
1453         return result;
1454 }
1455
1456 static gboolean
1457 _msg_download_completed (ModestMainWindow *win)
1458 {
1459         GtkWidget *header_view = NULL;
1460         TnyList *selected_headers = NULL;
1461         TnyIterator *iter = NULL;
1462         TnyHeader *header = NULL;
1463         TnyHeaderFlags flags;
1464         gboolean result = FALSE;
1465
1466         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1467
1468
1469         /* Get header view to check selected messages */
1470         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1471                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1472
1473         /* Check no selection */
1474         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1475             return TRUE;
1476
1477         /* Get selected headers */
1478         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1479         if (selected_headers == NULL)
1480                 return TRUE;
1481
1482         /* Check dimmed rule  */
1483         result = TRUE;
1484         iter = tny_list_create_iterator (selected_headers);
1485         while (!tny_iterator_is_done (iter) && result) {
1486                 header = TNY_HEADER (tny_iterator_get_current (iter));
1487
1488                 flags = tny_header_get_flags (header);
1489                 /* TODO: is this the right flag?, it seems that some
1490                    headers that have been previously downloaded do not
1491                    come with it */
1492                 result = (flags & TNY_HEADER_FLAG_CACHED);
1493
1494                 g_object_unref (header);
1495                 tny_iterator_next (iter);
1496         }
1497
1498         g_object_unref (iter);
1499
1500         return result;
1501 }
1502
1503 static gboolean
1504 _selected_msg_sent_in_progress (ModestWindow *win)
1505 {
1506         ModestTnySendQueue *send_queue = NULL;
1507         GtkWidget *header_view = NULL;
1508         ModestTnyAccountStore *acc_store = NULL;
1509         TnyAccount *account = NULL;
1510         TnyList *header_list = NULL;
1511         TnyIterator *iter = NULL;
1512         TnyHeader *header = NULL;
1513         const gchar *account_name = NULL;
1514         gboolean result = FALSE;
1515         gchar *id = NULL;
1516
1517         /* Get transport account */
1518         acc_store = modest_runtime_get_account_store();
1519         account_name = modest_window_get_active_account (win);
1520
1521         /* If no account defined, this action must be always dimmed  */
1522         if (account_name == NULL) return FALSE;
1523         account = modest_tny_account_store_get_transport_account_for_open_connection (acc_store, account_name);
1524         if (!TNY_IS_TRANSPORT_ACCOUNT (account)) return FALSE;
1525
1526         /* Get send queue for current ransport account */
1527         send_queue = modest_runtime_get_send_queue (TNY_TRANSPORT_ACCOUNT(account));
1528         g_return_val_if_fail (MODEST_IS_TNY_SEND_QUEUE (send_queue), FALSE);
1529
1530         if (MODEST_IS_MAIN_WINDOW(win)) {
1531
1532                 /* Get header view to check selected messages */
1533                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1534                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1535
1536                 /* Check no selection */
1537                 if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1538                     return FALSE;
1539
1540                 /* Get selected headers */
1541                 header_list = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1542
1543                 /* Get message header */
1544                 if (!header_list) return FALSE;
1545                 iter = tny_list_create_iterator (header_list);
1546                 header = TNY_HEADER (tny_iterator_get_current (iter));
1547
1548                 /* Get message id */
1549                 id = g_strdup(tny_header_get_message_id (header));
1550
1551         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1552
1553                 /* Get message header */
1554                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(win));
1555
1556                 /* Get message id */
1557                 id = g_strdup(tny_header_get_message_id (header));
1558         }
1559
1560         /* Check if msg id is being processed inside send queue */
1561         result = modest_tny_send_queue_msg_is_being_sent (send_queue, id);
1562
1563         /* Free */
1564         g_free(id);
1565         g_object_unref (header);
1566         g_object_unref(header_list);
1567         g_object_unref(iter);
1568
1569         return result;
1570 }
1571
1572
1573 static gboolean
1574 _sending_in_progress (ModestWindow *win)
1575 {
1576         ModestTnySendQueue *send_queue = NULL;
1577         ModestTnyAccountStore *acc_store = NULL;
1578         TnyAccount *account = NULL;
1579         const gchar *account_name = NULL;
1580         gboolean result = FALSE;
1581
1582         /* Get transport account */
1583         acc_store = modest_runtime_get_account_store();
1584         account_name = modest_window_get_active_account (win);
1585
1586         /* If no account defined, this action must be always dimmed  */
1587         if (account_name == NULL) return FALSE;
1588         account = modest_tny_account_store_get_transport_account_for_open_connection (acc_store, account_name);
1589         if (!TNY_IS_TRANSPORT_ACCOUNT (account)) return FALSE;
1590
1591         /* Get send queue for current ransport account */
1592         send_queue = modest_runtime_get_send_queue (TNY_TRANSPORT_ACCOUNT(account));
1593         g_return_val_if_fail (MODEST_IS_TNY_SEND_QUEUE (send_queue), FALSE);
1594
1595         /* Check if send queue is perfimring any send operation */
1596         result = modest_tny_send_queue_sending_in_progress (send_queue);
1597
1598         return result;
1599 }
1600
1601 static gboolean
1602 _invalid_attachment_for_purge (ModestWindow *win,
1603                                ModestDimmingRule *rule)
1604 {
1605         TnyMsg *msg = NULL;
1606         TnyFolder *folder = NULL;
1607         TnyAccount *account = NULL;
1608         gboolean result = TRUE;
1609
1610         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1611
1612                 /* Get folder and account of message */
1613                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1614                 g_return_val_if_fail(msg != NULL, TRUE);
1615                 folder = tny_msg_get_folder (msg);
1616                 if (folder == NULL) {
1617                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1618                         goto frees;
1619                 }
1620                 account = modest_tny_folder_get_account (folder);
1621                 if (account == NULL) goto frees;
1622
1623                 /* Check account */
1624                 if (!modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1625                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
1626                         /* If it's POP then dim */
1627                         if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1628                             MODEST_PROTOCOL_STORE_POP) {
1629                                 GList *attachments;
1630                                 gint n_selected;
1631                                 result = TRUE;
1632                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1633                                 n_selected = g_list_length (attachments);
1634                                 g_list_free (attachments);
1635
1636                                 modest_dimming_rule_set_notification (rule,
1637                                                                       ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
1638                                                                                 "mail_ib_unable_to_pure_attach_pop_mail_plural",
1639                                                                                 n_selected));
1640                         }
1641                 }
1642         }
1643
1644  frees:
1645         if (msg != NULL)
1646                 g_object_unref (msg);
1647         if (folder != NULL)
1648                 g_object_unref (folder);
1649         if (account != NULL)
1650                 g_object_unref (account);
1651
1652         return result;
1653 }
1654