git.maemo.org Git - modest/blob - src/widgets/modest-window-mgr.c

   1 /* Copyright (c) 2006,2007 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 #include <string.h>
  31 #include "modest-window-mgr.h"
  32 #include "modest-runtime.h"
  33 #include "modest-tny-folder.h"
  34 #include "modest-ui-actions.h"
  35 #include "modest-platform.h"
  36 #include "widgets/modest-main-window.h"
  37 #include "widgets/modest-msg-edit-window.h"
  38 #include "widgets/modest-msg-view-window.h"
  39 #include "modest-debug.h"
  40
  41
  42 /* 'private'/'protected' functions */
  43 static void modest_window_mgr_class_init (ModestWindowMgrClass *klass);
  44 static void modest_window_mgr_init       (ModestWindowMgr *obj);
  45 static void modest_window_mgr_finalize   (GObject *obj);
  46
  47 static gboolean on_window_destroy        (ModestWindow *window,
  48                                           GdkEvent *event,
  49                                           ModestWindowMgr *self);
  50
  51 static gboolean on_modal_window_close    (GtkWidget *widget,
  52                                           GdkEvent *event,
  53                                           gpointer user_data);
  54
  55 static void     on_modal_dialog_close    (GtkDialog *dialog,
  56                                           gint arg1,
  57                                           gpointer user_data);
  58
  59 static const gchar* get_show_toolbar_key (GType window_type,
  60                                           gboolean fullscreen);
  61
  62 /* list my signals  */
  63 enum {
  64         WINDOW_LIST_EMPTY_SIGNAL,
  65         NUM_SIGNALS
  66 };
  67
  68 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
  69 struct _ModestWindowMgrPrivate {
  70         GList        *window_list;
  71         guint         banner_counter;
  72
  73         ModestWindow *main_window;
  74
  75         GMutex       *queue_lock;
  76         GQueue       *modal_windows;
  77
  78         gboolean     fullscreen_mode;
  79
  80         GSList       *windows_that_prevent_hibernation;
  81         GSList       *preregistered_uids;
  82         GHashTable   *destroy_handlers;
  83         GHashTable   *viewer_handlers;
  84
  85         guint        closing_time;
  86
  87         GSList       *modal_handler_uids;
  88         GtkWidget    *cached_view;
  89         GtkWidget    *cached_editor;
  90         guint        idle_load_view_id;
  91         guint        idle_load_editor_id;
  92 };
  93 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  94                                                MODEST_TYPE_WINDOW_MGR, \
  95                                                ModestWindowMgrPrivate))
  96 /* globals */
  97 static GObjectClass *parent_class = NULL;
  98
  99 /* uncomment the following if you have defined any signals */
 100 static guint signals[NUM_SIGNALS] = {0};
 101
 102 GType
 103 modest_window_mgr_get_type (void)
 104 {
 105         static GType my_type = 0;
 106         if (!my_type) {
 107                 static const GTypeInfo my_info = {
 108                         sizeof(ModestWindowMgrClass),
 109                         NULL,           /* base init */
 110                         NULL,           /* base finalize */
 111                         (GClassInitFunc) modest_window_mgr_class_init,
 112                         NULL,           /* class finalize */
 113                         NULL,           /* class data */
 114                         sizeof(ModestWindowMgr),
 115                         1,              /* n_preallocs */
 116                         (GInstanceInitFunc) modest_window_mgr_init,
 117                         NULL
 118                 };
 119                 my_type = g_type_register_static (G_TYPE_OBJECT,
 120                                                   "ModestWindowMgr",
 121                                                   &my_info, 0);
 122         }
 123         return my_type;
 124 }
 125
 126 static void
 127 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 128 {
 129         GObjectClass *gobject_class;
 130         gobject_class = (GObjectClass*) klass;
 131
 132         parent_class            = g_type_class_peek_parent (klass);
 133         gobject_class->finalize = modest_window_mgr_finalize;
 134
 135         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 136
 137
 138         /**
 139          * ModestWindowMgr::window-list-empty
 140          * @self: the #ModestWindowMgr that emits the signal
 141          * @user_data: user data set when the signal handler was connected
 142          *
 143          * Issued whenever the window list becomes empty
 144          */
 145         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 146                 g_signal_new ("window-list-empty",
 147                               G_TYPE_FROM_CLASS (gobject_class),
 148                               G_SIGNAL_RUN_FIRST,
 149                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 150                               NULL, NULL,
 151                               g_cclosure_marshal_VOID__VOID,
 152                               G_TYPE_NONE, 0);
 153 }
 154
 155 static gboolean
 156 idle_load_view (ModestWindowMgr *mgr)
 157 {
 158         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 159
 160         priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
 161         priv->idle_load_view_id = 0;
 162         return FALSE;
 163 }
 164
 165 static gboolean
 166 idle_load_editor (ModestWindowMgr *mgr)
 167 {
 168         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 169
 170         priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
 171         priv->idle_load_editor_id = 0;
 172         return FALSE;
 173 }
 174
 175 static void
 176 load_new_view (ModestWindowMgr *self)
 177 {
 178         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 179         if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
 180                 priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
 181 }
 182
 183 static void
 184 load_new_editor (ModestWindowMgr *self)
 185 {
 186         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 187         if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
 188                 priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 189 }
 190
 191 static void
 192 modest_window_mgr_init (ModestWindowMgr *obj)
 193 {
 194         ModestWindowMgrPrivate *priv;
 195
 196         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 197         priv->window_list = NULL;
 198         priv->banner_counter = 0;
 199         priv->main_window = NULL;
 200         priv->fullscreen_mode = FALSE;
 201
 202         priv->modal_windows = g_queue_new ();
 203         priv->queue_lock = g_mutex_new ();
 204
 205         priv->preregistered_uids = NULL;
 206
 207         /* Could not initialize it from gconf, singletons are not
 208            ready yet */
 209         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 210         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 211
 212         priv->closing_time = 0;
 213
 214         priv->modal_handler_uids = NULL;
 215         priv->cached_view = NULL;
 216         priv->cached_editor = NULL;
 217 }
 218
 219 static void
 220 modest_window_mgr_finalize (GObject *obj)
 221 {
 222         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 223
 224         if (priv->idle_load_view_id > 0) {
 225                 g_source_remove (priv->idle_load_view_id);
 226                 priv->idle_load_view_id = 0;
 227         }
 228
 229         if (priv->idle_load_editor_id > 0) {
 230                 g_source_remove (priv->idle_load_editor_id);
 231                 priv->idle_load_editor_id = 0;
 232         }
 233
 234         if (priv->cached_view) {
 235                 gtk_widget_destroy (priv->cached_view);
 236                 priv->cached_view = NULL;
 237         }
 238         if (priv->cached_editor) {
 239                 gtk_widget_destroy (priv->cached_editor);
 240                 priv->cached_editor = NULL;
 241         }
 242
 243         if (priv->window_list) {
 244                 GList *iter = priv->window_list;
 245                 /* unregister pending windows */
 246                 while (iter) {
 247                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj),
 248                                                              MODEST_WINDOW (iter->data));
 249                         iter = g_list_next (iter);
 250                 }
 251                 g_list_free (priv->window_list);
 252                 priv->window_list = NULL;
 253         }
 254
 255         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 256         g_slist_free (priv->preregistered_uids);
 257
 258
 259         /* Free the hash table with the handlers */
 260         if (priv->destroy_handlers) {
 261                 g_hash_table_destroy (priv->destroy_handlers);
 262                 priv->destroy_handlers = NULL;
 263         }
 264
 265         if (priv->viewer_handlers) {
 266                 g_hash_table_destroy (priv->viewer_handlers);
 267                 priv->viewer_handlers = NULL;
 268         }
 269
 270         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 271
 272         if (priv->modal_windows) {
 273                 g_mutex_lock (priv->queue_lock);
 274                 g_queue_free (priv->modal_windows);
 275                 priv->modal_windows = NULL;
 276                 g_mutex_unlock (priv->queue_lock);
 277         }
 278         g_mutex_free (priv->queue_lock);
 279
 280         /* Do not unref priv->main_window because it does not hold a
 281            new reference */
 282
 283
 284         G_OBJECT_CLASS(parent_class)->finalize (obj);
 285 }
 286
 287 ModestWindowMgr*
 288 modest_window_mgr_new (void)
 289 {
 290         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 291 }
 292
 293
 294
 295
 296 /* do we have uid? */
 297 static gboolean
 298 has_uid (GSList *list, const gchar *uid)
 299 {
 300         GSList *cursor = list;
 301
 302         if (!uid)
 303                 return FALSE;
 304
 305         while (cursor) {
 306                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 307                         return TRUE;
 308                 cursor = g_slist_next (cursor);
 309         }
 310         return FALSE;
 311 }
 312
 313
 314 /* remove all from the list have have uid = uid */
 315 static GSList*
 316 remove_uid (GSList *list, const gchar *uid)
 317 {
 318         GSList *cursor = list, *start = list;
 319
 320         if (!uid)
 321                 return FALSE;
 322
 323         while (cursor) {
 324                 GSList *next = g_slist_next (cursor);
 325                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 326                         g_free (cursor->data);
 327                         start = g_slist_delete_link (start, cursor);
 328                 }
 329                 cursor = next;
 330         }
 331         return start;
 332 }
 333
 334
 335 static GSList *
 336 append_uid (GSList *list, const gchar *uid)
 337 {
 338         return g_slist_append (list, g_strdup(uid));
 339 }
 340
 341
 342
 343 void
 344 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 345 {
 346         ModestWindowMgrPrivate *priv;
 347         gchar* uid;
 348
 349         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 350         g_return_if_fail (TNY_IS_HEADER(header));
 351
 352         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 353         uid = modest_tny_folder_get_header_unique_id (header);
 354
 355         if (uid == NULL)
 356                 uid = g_strdup (alt_uid);
 357
 358         if (!has_uid (priv->preregistered_uids, uid)) {
 359                 MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 360                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 361         } else
 362                 MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
 363
 364         g_free (uid);
 365 }
 366
 367 void
 368 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 369 {
 370         ModestWindowMgrPrivate *priv;
 371         gchar* uid;
 372
 373         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 374         g_return_if_fail (TNY_IS_HEADER(header));
 375
 376         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 377         uid = modest_tny_folder_get_header_unique_id (header);
 378
 379         if (!has_uid (priv->preregistered_uids, uid)) {
 380                 MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 381                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 382         } else
 383                 MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
 384
 385         if (has_uid (priv->preregistered_uids, uid)) {
 386                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 387                 if (has_uid (priv->preregistered_uids, uid))
 388                         g_debug ("BUG: uid %s NOT removed", uid);
 389                 else
 390                         MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 391         }
 392
 393         g_free (uid);
 394 }
 395
 396
 397 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 398
 399 void
 400 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 401 {
 402         /* we don't need 'self', but for API consistency... */
 403         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 404
 405         g_return_if_fail (win && GTK_IS_WINDOW(win));
 406         g_return_if_fail (help_id);
 407
 408         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 409                                 g_strdup(help_id), g_free);
 410 }
 411
 412
 413 const gchar*
 414 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 415 {
 416         const gchar* help_id = NULL;
 417
 418         /* we don't need 'self', but for API consistency... */
 419         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 420
 421         g_return_val_if_fail (win, NULL);
 422         g_return_val_if_fail (GTK_IS_WINDOW(win), NULL);
 423
 424         if (MODEST_IS_MAIN_WINDOW (win)) {
 425                 GtkWidget *folder_view;
 426                 TnyFolderStore *folder_store;
 427
 428                 /* Get selected folder */
 429                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 430                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 431                 folder_store = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 432
 433                 /* Switch help_id */
 434                 if (folder_store && TNY_IS_FOLDER (folder_store)) {
 435                         help_id = modest_tny_folder_get_help_id (TNY_FOLDER (folder_store));
 436                         if (!help_id)
 437                                 g_warning ("%s: BUG: did not get a valid help_id", __FUNCTION__);
 438                 }
 439                 if (folder_store)
 440                         g_object_unref (folder_store);
 441         }
 442
 443         if (!help_id)
 444                 help_id = g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 445
 446         return help_id;
 447 }
 448
 449 static gint
 450 compare_msguids (ModestWindow *win,
 451                  const gchar *uid)
 452 {
 453         const gchar *msg_uid;
 454
 455         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 456                 return 1;
 457
 458         /* Get message uid from msg window */
 459         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 460                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 461                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 462                         return 0;
 463         } else {
 464                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 465         }
 466
 467         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 468                 return 0;
 469         else
 470                 return 1;
 471 }
 472
 473 void
 474 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 475 {
 476         ModestWindowMgrPrivate *priv = NULL;
 477         gboolean ret_value = FALSE;
 478
 479         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 480         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 481
 482         /* If there is a main window then try to close it, and it will
 483            close the others if needed */
 484         if (priv->main_window) {
 485                 g_signal_emit_by_name (priv->main_window, "delete-event", NULL, &ret_value);
 486         } else {
 487                 GList *wins = NULL, *next = NULL;
 488
 489                 /* delete-event handler actually removes window_list item, */
 490                 wins = priv->window_list;
 491                 while (wins) {
 492                         next = g_list_next (wins);
 493                         g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 494                         wins = next;
 495                 }
 496         }
 497 }
 498
 499
 500 gboolean
 501 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 502                                           ModestWindow **win)
 503 {
 504         ModestWindowMgrPrivate *priv = NULL;
 505         gchar* uid = NULL;
 506         gboolean has_header, has_window = FALSE;
 507         GList *item = NULL;
 508
 509         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 510         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 511
 512         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 513
 514         uid = modest_tny_folder_get_header_unique_id (header);
 515
 516         if (win)
 517                 *win = NULL;
 518
 519         has_header = has_uid (priv->preregistered_uids, uid);
 520
 521         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 522         if (item) {
 523                 has_window = TRUE;
 524                 if (win) {
 525                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 526                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 527                                 g_debug ("not a valid window!");
 528                         else {
 529                                 g_debug ("found a window");
 530                                 *win = MODEST_WINDOW (item->data);
 531                         }
 532                 }
 533         }
 534         g_free (uid);
 535
 536         return has_header || has_window;
 537 }
 538
 539 static const gchar *
 540 get_show_toolbar_key (GType window_type,
 541                       gboolean fullscreen)
 542 {
 543         const gchar *key = NULL;
 544
 545         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 546                 key = (fullscreen) ?
 547                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 548                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 549         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 550                 key = (fullscreen) ?
 551                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 552                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 553         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 554                 key = (fullscreen) ?
 555                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 556                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 557         else
 558                 g_return_val_if_reached (NULL);
 559
 560         return key;
 561 }
 562
 563 void
 564 modest_window_mgr_register_window (ModestWindowMgr *self,
 565                                    ModestWindow *window)
 566 {
 567         GList *win;
 568         ModestWindowMgrPrivate *priv;
 569         gint *handler_id;
 570         const gchar *key;
 571
 572         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 573         g_return_if_fail (GTK_IS_WINDOW (window));
 574
 575         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 576
 577         win = g_list_find (priv->window_list, window);
 578         if (win) {
 579                 /* this is for the case we want to register the window and it was already
 580                  * registered. We leave silently.
 581                  */
 582                 return;
 583         }
 584
 585         /* Check that it's not a second main window */
 586         if (MODEST_IS_MAIN_WINDOW (window)) {
 587                 if (priv->main_window) {
 588                         g_warning ("%s: trying to register a second main window",
 589                                    __FUNCTION__);
 590                         return;
 591                 } else {
 592                         priv->main_window = window;
 593                         load_new_view (self);
 594                         load_new_editor (self);
 595                 }
 596         }
 597
 598         /* remove from the list of pre-registered uids */
 599         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 600                 const gchar *uid = modest_msg_view_window_get_message_uid
 601                         (MODEST_MSG_VIEW_WINDOW (window));
 602
 603                 if (!has_uid (priv->preregistered_uids, uid))
 604                         g_debug ("weird: no uid for window (%s)", uid);
 605
 606                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
 607
 608                 priv->preregistered_uids =
 609                         remove_uid (priv->preregistered_uids,
 610                                     modest_msg_view_window_get_message_uid
 611                                     (MODEST_MSG_VIEW_WINDOW (window)));
 612         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 613                 const gchar *uid = modest_msg_edit_window_get_message_uid
 614                         (MODEST_MSG_EDIT_WINDOW (window));
 615
 616                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 617
 618                 priv->preregistered_uids =
 619                         remove_uid (priv->preregistered_uids,
 620                                     modest_msg_edit_window_get_message_uid
 621                                     (MODEST_MSG_EDIT_WINDOW (window)));
 622         }
 623
 624         /* Add to list. Keep a reference to the window */
 625         g_object_ref (window);
 626         priv->window_list = g_list_prepend (priv->window_list, window);
 627
 628         /* Listen to object destruction */
 629         handler_id = g_malloc0 (sizeof (gint));
 630         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 631         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 632
 633         /* If there is a msg view window, let the main window listen the msg-changed signal */
 634         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 635                 gulong *handler;
 636                 handler = g_malloc0 (sizeof (gulong));
 637                 *handler = g_signal_connect (window, "msg-changed",
 638                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 639                                              priv->main_window);
 640                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 641         }
 642
 643         /* Put into fullscreen if needed */
 644         if (priv->fullscreen_mode)
 645                 gtk_window_fullscreen (GTK_WINDOW (window));
 646
 647         /* Show/hide toolbar & fullscreen */
 648         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 649         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 650 }
 651
 652 static gboolean
 653 on_window_destroy (ModestWindow *window,
 654                    GdkEvent *event,
 655                    ModestWindowMgr *self)
 656 {
 657         gint dialog_response = GTK_RESPONSE_NONE;
 658
 659         /* Specific stuff first */
 660         if (MODEST_IS_MAIN_WINDOW (window)) {
 661                 ModestWindowMgrPrivate *priv;
 662                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 663
 664                 /* If more than one window already opened */
 665                 if (g_list_length (priv->window_list) > 1) {
 666
 667                         /* Present the window if it's not visible now */
 668                         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 669                                 gtk_window_present (GTK_WINDOW (window));
 670                         /* Create the confirmation dialog MSG-NOT308 */
 671                         dialog_response = modest_platform_run_confirmation_dialog (
 672                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 673
 674                         /* If the user wants to close all the windows */
 675                         if ((dialog_response == GTK_RESPONSE_OK)
 676                             || (dialog_response == GTK_RESPONSE_ACCEPT)
 677                             || (dialog_response == GTK_RESPONSE_YES)) {
 678                                         GList *iter = priv->window_list;
 679                                         do {
 680                                                 if (iter->data != window) {
 681                                                         GList *tmp = iter->next;
 682                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 683                                                                         event,
 684                                                                         self);
 685                                                         iter = tmp;
 686                                                 } else {
 687                                                         iter = g_list_next (iter);
 688                                                 }
 689                                         } while (iter);
 690                         } else {
 691                                 return TRUE;
 692                         }
 693                 }
 694         }
 695         else {
 696                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 697                         gboolean sent = FALSE;
 698                         gint response = GTK_RESPONSE_ACCEPT;
 699                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 700                         /* Save currently edited message to Drafts if it was not sent */
 701                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 702
 703                                 /* Raise the window if it's minimized */
 704                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 705                                         gtk_window_present (GTK_WINDOW (window));
 706
 707                                 response =
 708                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 709                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 710                                 /* Save to drafts */
 711                                 if (response == GTK_RESPONSE_OK)
 712                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 713                                                 return TRUE;
 714                         }
 715                 }
 716         }
 717
 718         /* Unregister window */
 719         modest_window_mgr_unregister_window (self, window);
 720
 721         return FALSE;
 722 }
 723
 724 static void
 725 disconnect_msg_changed (gpointer key,
 726                         gpointer value,
 727                         gpointer user_data)
 728 {
 729         guint handler_id;
 730         handler_id = GPOINTER_TO_UINT(value);
 731
 732         if (key && G_IS_OBJECT(key))
 733                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 734 }
 735
 736 void
 737 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 738                                      ModestWindow *window)
 739 {
 740         GList *win;
 741         ModestWindowMgrPrivate *priv;
 742         gulong *tmp, handler_id;
 743
 744         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 745         g_return_if_fail (MODEST_IS_WINDOW (window));
 746
 747         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 748
 749         win = g_list_find (priv->window_list, window);
 750         if (!win) {
 751                 g_warning ("Trying to unregister a window that has not being registered yet");
 752                 return;
 753         }
 754
 755         /* If it's the main window unset it */
 756         if (priv->main_window == window) {
 757                 priv->main_window = NULL;
 758
 759                 /* Disconnect all emissions of msg-changed */
 760                 if (priv->viewer_handlers) {
 761                         g_hash_table_foreach (priv->viewer_handlers,
 762                                               disconnect_msg_changed,
 763                                               NULL);
 764                         g_hash_table_destroy (priv->viewer_handlers);
 765                         priv->viewer_handlers = NULL;
 766                 }
 767         }
 768
 769         /* Remove the viewer window handler from the hash table. The
 770            HashTable could not exist if the main window was closeed
 771            when there were other windows remaining */
 772         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 773                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 774                 /* If the viewer was created without a main window
 775                    (for example when opening a message through D-Bus
 776                    the viewer handlers was not registered */
 777                 if (tmp) {
 778                         g_signal_handler_disconnect (window, *tmp);
 779                         g_hash_table_remove (priv->viewer_handlers, window);
 780                 }
 781         }
 782
 783         /* Save state */
 784         modest_window_save_state (window);
 785
 786         /* Remove from list & hash table */
 787         priv->window_list = g_list_remove_link (priv->window_list, win);
 788         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 789         handler_id = *tmp;
 790         g_hash_table_remove (priv->destroy_handlers, window);
 791
 792         /* cancel open and receive operations */
 793         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 794                 ModestMailOperationTypeOperation type;
 795                 GSList* pending_ops = NULL;
 796                 GSList* tmp_list = NULL;
 797                 pending_ops = modest_mail_operation_queue_get_by_source (
 798                                 modest_runtime_get_mail_operation_queue (),
 799                                 G_OBJECT (window));
 800                 while (pending_ops != NULL) {
 801                         type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 802                         if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 803                                 modest_mail_operation_cancel (pending_ops->data);
 804                         }
 805                         g_object_unref (G_OBJECT (pending_ops->data));
 806                         tmp_list = pending_ops;
 807                         pending_ops = g_slist_next (pending_ops);
 808                         g_slist_free_1 (tmp_list);
 809                 }
 810         }
 811
 812         /* Disconnect the "delete-event" handler, we won't need it anymore */
 813         g_signal_handler_disconnect (window, handler_id);
 814
 815         /* Disconnect all the window signals */
 816         modest_window_disconnect_signals (window);
 817
 818         /* Destroy the window */
 819         gtk_widget_destroy (win->data);
 820
 821         /* If there are no more windows registered emit the signal */
 822         if (priv->window_list == NULL && priv->banner_counter == 0)
 823                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 824 }
 825
 826
 827
 828 void
 829 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 830                                        gboolean on)
 831 {
 832         ModestWindowMgrPrivate *priv;
 833         GList *win = NULL;
 834         ModestConf *conf;
 835
 836         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 837
 838         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 839
 840         /* If there is no change do nothing */
 841         if (priv->fullscreen_mode == on)
 842                 return;
 843
 844         priv->fullscreen_mode = on;
 845
 846         conf = modest_runtime_get_conf ();
 847
 848         /* Update windows */
 849         win = priv->window_list;
 850         while (win) {
 851                 gboolean show;
 852                 const gchar *key = NULL;
 853
 854                 /* Getting this from gconf everytime is not that
 855                    expensive, we'll do it just a few times */
 856                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 857                 show = modest_conf_get_bool (conf, key, NULL);
 858
 859                 /* Set fullscreen/unfullscreen */
 860                 if (on)
 861                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 862                 else
 863                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 864
 865                 /* Show/Hide toolbar */
 866                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 867
 868                 win = g_list_next (win);
 869         }
 870 }
 871
 872 gboolean
 873 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 874 {
 875         ModestWindowMgrPrivate *priv;
 876
 877         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 878
 879         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 880
 881         return priv->fullscreen_mode;
 882 }
 883
 884 void
 885 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
 886                                  GType window_type,
 887                                  gboolean show_toolbars,
 888                                  gboolean fullscreen)
 889 {
 890         ModestWindowMgrPrivate *priv;
 891         ModestConf *conf;
 892         const gchar *key = NULL;
 893
 894         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 895
 896         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 897         conf = modest_runtime_get_conf ();
 898
 899         /* If nothing changes then return */
 900         key = get_show_toolbar_key (window_type, fullscreen);
 901         conf = modest_runtime_get_conf ();
 902         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
 903                 return;
 904
 905         /* Save in conf */
 906         modest_conf_set_bool (conf, key, show_toolbars, NULL);
 907
 908         /* Apply now if the view mode is the right one */
 909         if ((fullscreen && priv->fullscreen_mode) ||
 910             (!fullscreen && !priv->fullscreen_mode)) {
 911
 912                 GList *win = priv->window_list;
 913
 914                 while (win) {
 915                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
 916                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
 917                                                             show_toolbars);
 918                         win = g_list_next (win);
 919                 }
 920         }
 921 }
 922
 923 ModestWindow*
 924 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
 925 {
 926         ModestWindowMgrPrivate *priv;
 927
 928         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 929         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 930
 931         /* create the main window, if it hasn't been created yet */
 932         if (!priv->main_window && create) {
 933                 /* modest_window_mgr_register_window will set priv->main_window */
 934                 modest_window_mgr_register_window (self, modest_main_window_new ());
 935                 MODEST_DEBUG_BLOCK(
 936                         g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
 937                 );
 938         }
 939
 940         return priv->main_window;
 941 }
 942
 943
 944 gboolean
 945 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
 946 {
 947         ModestWindowMgrPrivate *priv;
 948
 949         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 950         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 951
 952         return priv->main_window != NULL;
 953 }
 954
 955
 956 GtkWindow *
 957 modest_window_mgr_get_modal (ModestWindowMgr *self)
 958 {
 959         ModestWindowMgrPrivate *priv;
 960
 961         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 962         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 963
 964         return g_queue_peek_head (priv->modal_windows);
 965 }
 966
 967
 968 void
 969 modest_window_mgr_set_modal (ModestWindowMgr *self,
 970                              GtkWindow *window)
 971 {
 972         GtkWindow *old_modal;
 973         ModestWindowMgrPrivate *priv;
 974
 975         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 976         g_return_if_fail (GTK_IS_WINDOW (window));
 977
 978         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 979         g_mutex_lock (priv->queue_lock);
 980         old_modal = g_queue_peek_head (priv->modal_windows);
 981         g_mutex_unlock (priv->queue_lock);
 982
 983         if (!old_modal) {
 984                 gtk_window_set_modal (window, TRUE);
 985         } else {
 986                 /* un-modalize the old one; the one on top should be the
 987                  * modal one */
 988                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
 989                 gtk_window_set_modal (window, TRUE);
 990         }
 991
 992         /* this will be the new modal window */
 993         g_mutex_lock (priv->queue_lock);
 994         g_queue_push_head (priv->modal_windows, window);
 995         g_mutex_unlock (priv->queue_lock);
 996
 997         if (GTK_IS_DIALOG (window))
 998                 /* Note that response is not always enough because it
 999                    could be captured and removed easily by dialogs but
1000                    works for most of situations */
1001                 priv->modal_handler_uids =
1002                         modest_signal_mgr_connect (priv->modal_handler_uids,
1003                                                    G_OBJECT (window),
1004                                                    "response",
1005                                                    G_CALLBACK (on_modal_dialog_close),
1006                                                    self);
1007         else
1008                 priv->modal_handler_uids =
1009                         modest_signal_mgr_connect (priv->modal_handler_uids,
1010                                                    G_OBJECT (window),
1011                                                    "delete-event",
1012                                                    G_CALLBACK (on_modal_window_close),
1013                                                    self);
1014 }
1015
1016
1017 static void
1018 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
1019 {
1020         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1021         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1022
1023         /* Forget this window,
1024          * so hibernation will be allowed again if no windows are remembered: */
1025         priv->windows_that_prevent_hibernation =
1026                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
1027 }
1028
1029 static void
1030 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
1031 {
1032         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1033         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1034
1035         GtkWindow *window = GTK_WINDOW (widget);
1036
1037         priv->windows_that_prevent_hibernation =
1038                         g_slist_append (priv->windows_that_prevent_hibernation, window);
1039
1040         /* Allow hibernation again when the window has been hidden: */
1041         g_signal_connect (window, "hide",
1042                 G_CALLBACK (on_nonhibernating_window_hide), self);
1043 }
1044
1045 void
1046 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
1047                                                                   GtkWindow *window)
1048 {
1049         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1050
1051         if (GTK_WIDGET_VISIBLE(window)) {
1052                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
1053         } else {
1054                 /* Wait for it to be shown: */
1055                 g_signal_connect (window, "show",
1056                         G_CALLBACK (on_nonhibernating_window_show), self);
1057         }
1058 }
1059
1060 gboolean
1061 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
1062 {
1063         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1064
1065         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1066
1067         /* Prevent hibernation if any open windows are currently
1068          * preventing hibernation: */
1069         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
1070 }
1071
1072
1073 void
1074 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
1075 {
1076         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1077
1078         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1079
1080         /* Iterate over all windows */
1081         GList *win = priv->window_list;
1082         while (win) {
1083                 ModestWindow *window = MODEST_WINDOW (win->data);
1084                 if (window) {
1085                         /* This calls the vfunc,
1086                          * so each window can do its own thing: */
1087                         modest_window_save_state (window);
1088                 }
1089
1090                 win = g_list_next (win);
1091         }
1092 }
1093
1094 static gboolean
1095 idle_top_modal (gpointer data)
1096 {
1097         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1098         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1099         GtkWindow *topmost;
1100
1101         /* Get the top modal */
1102         g_mutex_lock (priv->queue_lock);
1103         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1104         g_mutex_unlock (priv->queue_lock);
1105
1106         /* Show it */
1107         if (topmost)
1108                 gtk_window_present (topmost);
1109
1110         return FALSE;
1111 }
1112
1113 static void
1114 remove_modal_from_queue (GtkWidget *widget,
1115                          ModestWindowMgr *self)
1116 {
1117         ModestWindowMgrPrivate *priv;
1118         GList *item = NULL;
1119
1120         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1121
1122         /* Remove from queue. We don't use remove, because we want to
1123            exit if the widget does not belong to the queue */
1124         g_mutex_lock (priv->queue_lock);
1125         item = g_queue_find (priv->modal_windows, widget);
1126         if (!item) {
1127                 g_warning ("Trying to remove a modal window that is not registered");
1128                 g_mutex_unlock (priv->queue_lock);
1129                 return;
1130         }
1131         g_queue_unlink (priv->modal_windows, item);
1132         g_mutex_unlock (priv->queue_lock);
1133
1134         /* Disconnect handler */
1135         priv->modal_handler_uids =
1136                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1137                                               G_OBJECT (widget),
1138                                               GTK_IS_DIALOG (widget) ?
1139                                               "response" :
1140                                               "destroy-event");
1141
1142         /* Schedule the next one for being shown */
1143         g_idle_add (idle_top_modal, self);
1144 }
1145
1146 static gboolean
1147 on_modal_window_close (GtkWidget *widget,
1148                        GdkEvent *event,
1149                        gpointer user_data)
1150 {
1151         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1152
1153         /* Remove modal window from queue */
1154         remove_modal_from_queue (widget, self);
1155
1156         /* Continue */
1157         return FALSE;
1158 }
1159
1160 static void
1161 on_modal_dialog_close (GtkDialog *dialog,
1162                        gint arg1,
1163                        gpointer user_data)
1164 {
1165         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1166
1167         /* Remove modal window from queue */
1168         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1169 }
1170
1171 gint
1172 modest_window_mgr_num_windows (ModestWindowMgr *self)
1173 {
1174         ModestWindowMgrPrivate *priv;
1175         gint num_windows = 0;
1176
1177         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
1178
1179         priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
1180
1181         if (priv->window_list)
1182                 num_windows = g_list_length (priv->window_list);
1183
1184         return num_windows + priv->banner_counter;
1185 }
1186
1187 GtkWidget *
1188 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
1189 {
1190         GtkWidget *result;
1191         ModestWindowMgrPrivate *priv;
1192
1193         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1194
1195         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1196
1197         if (priv->cached_editor) {
1198                 result = priv->cached_editor;
1199                 priv->cached_editor = NULL;
1200                 load_new_editor (self);
1201         } else {
1202                 result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
1203         }
1204
1205         return result;
1206 }
1207
1208 GtkWidget *
1209 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
1210 {
1211         GtkWidget *result;
1212         ModestWindowMgrPrivate *priv;
1213
1214         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1215
1216         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1217
1218         if (priv->cached_view) {
1219                 result = priv->cached_view;
1220                 priv->cached_view = NULL;
1221                 load_new_view (self);
1222         } else {
1223                 result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
1224         }
1225
1226         return result;
1227 }
1228
1229 void
1230 modest_window_mgr_register_banner (ModestWindowMgr *self)
1231 {
1232         ModestWindowMgrPrivate *priv;
1233
1234         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1235         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1236
1237         priv->banner_counter++;
1238
1239 }
1240
1241 void
1242 modest_window_mgr_unregister_banner (ModestWindowMgr *self)
1243 {
1244         ModestWindowMgrPrivate *priv;
1245
1246         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1247         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1248
1249         priv->banner_counter--;
1250         if (priv->window_list == NULL && priv->banner_counter == 0) {
1251                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
1252         }
1253
1254 }