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         GSList       *window_state_uids;
  85
  86         guint        closing_time;
  87
  88         GSList       *modal_handler_uids;
  89         GtkWidget    *cached_view;
  90         GtkWidget    *cached_editor;
  91         guint        idle_load_view_id;
  92         guint        idle_load_editor_id;
  93
  94         ModestWindow *current_top;
  95 };
  96 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  97                                                MODEST_TYPE_WINDOW_MGR, \
  98                                                ModestWindowMgrPrivate))
  99 /* globals */
 100 static GObjectClass *parent_class = NULL;
 101
 102 /* uncomment the following if you have defined any signals */
 103 static guint signals[NUM_SIGNALS] = {0};
 104
 105 GType
 106 modest_window_mgr_get_type (void)
 107 {
 108         static GType my_type = 0;
 109         if (!my_type) {
 110                 static const GTypeInfo my_info = {
 111                         sizeof(ModestWindowMgrClass),
 112                         NULL,           /* base init */
 113                         NULL,           /* base finalize */
 114                         (GClassInitFunc) modest_window_mgr_class_init,
 115                         NULL,           /* class finalize */
 116                         NULL,           /* class data */
 117                         sizeof(ModestWindowMgr),
 118                         1,              /* n_preallocs */
 119                         (GInstanceInitFunc) modest_window_mgr_init,
 120                         NULL
 121                 };
 122                 my_type = g_type_register_static (G_TYPE_OBJECT,
 123                                                   "ModestWindowMgr",
 124                                                   &my_info, 0);
 125         }
 126         return my_type;
 127 }
 128
 129 static void
 130 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 131 {
 132         GObjectClass *gobject_class;
 133         gobject_class = (GObjectClass*) klass;
 134
 135         parent_class            = g_type_class_peek_parent (klass);
 136         gobject_class->finalize = modest_window_mgr_finalize;
 137
 138         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 139
 140
 141         /**
 142          * ModestWindowMgr::window-list-empty
 143          * @self: the #ModestWindowMgr that emits the signal
 144          * @user_data: user data set when the signal handler was connected
 145          *
 146          * Issued whenever the window list becomes empty
 147          */
 148         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 149                 g_signal_new ("window-list-empty",
 150                               G_TYPE_FROM_CLASS (gobject_class),
 151                               G_SIGNAL_RUN_FIRST,
 152                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 153                               NULL, NULL,
 154                               g_cclosure_marshal_VOID__VOID,
 155                               G_TYPE_NONE, 0);
 156 }
 157
 158 static gboolean
 159 idle_load_view (ModestWindowMgr *mgr)
 160 {
 161         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 162
 163         priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
 164         priv->idle_load_view_id = 0;
 165         return FALSE;
 166 }
 167
 168 static gboolean
 169 idle_load_editor (ModestWindowMgr *mgr)
 170 {
 171         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 172
 173         priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
 174         priv->idle_load_editor_id = 0;
 175         return FALSE;
 176 }
 177
 178 static void
 179 load_new_view (ModestWindowMgr *self)
 180 {
 181         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 182         if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
 183                 priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
 184 }
 185
 186 static void
 187 load_new_editor (ModestWindowMgr *self)
 188 {
 189         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 190         if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
 191                 priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 192 }
 193
 194 static void
 195 modest_window_mgr_init (ModestWindowMgr *obj)
 196 {
 197         ModestWindowMgrPrivate *priv;
 198
 199         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 200         priv->window_list = NULL;
 201         priv->banner_counter = 0;
 202         priv->main_window = NULL;
 203         priv->fullscreen_mode = FALSE;
 204         priv->current_top = NULL;
 205         priv->window_state_uids = NULL;
 206
 207         priv->modal_windows = g_queue_new ();
 208         priv->queue_lock = g_mutex_new ();
 209
 210         priv->preregistered_uids = NULL;
 211
 212         /* Could not initialize it from gconf, singletons are not
 213            ready yet */
 214         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 215         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 216
 217         priv->closing_time = 0;
 218
 219         priv->modal_handler_uids = NULL;
 220         priv->cached_view = NULL;
 221         priv->cached_editor = NULL;
 222 }
 223
 224 static void
 225 modest_window_mgr_finalize (GObject *obj)
 226 {
 227         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 228
 229         if (priv->idle_load_view_id > 0) {
 230                 g_source_remove (priv->idle_load_view_id);
 231                 priv->idle_load_view_id = 0;
 232         }
 233
 234         if (priv->idle_load_editor_id > 0) {
 235                 g_source_remove (priv->idle_load_editor_id);
 236                 priv->idle_load_editor_id = 0;
 237         }
 238
 239         if (priv->cached_view) {
 240                 gtk_widget_destroy (priv->cached_view);
 241                 priv->cached_view = NULL;
 242         }
 243         if (priv->cached_editor) {
 244                 gtk_widget_destroy (priv->cached_editor);
 245                 priv->cached_editor = NULL;
 246         }
 247
 248         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
 249         priv->window_state_uids = NULL;
 250
 251         if (priv->window_list) {
 252                 GList *iter = priv->window_list;
 253                 /* unregister pending windows */
 254                 while (iter) {
 255                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj),
 256                                                              MODEST_WINDOW (iter->data));
 257                         iter = g_list_next (iter);
 258                 }
 259                 g_list_free (priv->window_list);
 260                 priv->window_list = NULL;
 261         }
 262
 263         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 264         g_slist_free (priv->preregistered_uids);
 265
 266
 267         /* Free the hash table with the handlers */
 268         if (priv->destroy_handlers) {
 269                 g_hash_table_destroy (priv->destroy_handlers);
 270                 priv->destroy_handlers = NULL;
 271         }
 272
 273         if (priv->viewer_handlers) {
 274                 g_hash_table_destroy (priv->viewer_handlers);
 275                 priv->viewer_handlers = NULL;
 276         }
 277
 278         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 279         priv->modal_handler_uids = NULL;
 280
 281         if (priv->modal_windows) {
 282                 g_mutex_lock (priv->queue_lock);
 283                 g_queue_free (priv->modal_windows);
 284                 priv->modal_windows = NULL;
 285                 g_mutex_unlock (priv->queue_lock);
 286         }
 287         g_mutex_free (priv->queue_lock);
 288
 289         /* Do not unref priv->main_window because it does not hold a
 290            new reference */
 291
 292
 293         G_OBJECT_CLASS(parent_class)->finalize (obj);
 294 }
 295
 296 ModestWindowMgr*
 297 modest_window_mgr_new (void)
 298 {
 299         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 300 }
 301
 302
 303
 304
 305 /* do we have uid? */
 306 static gboolean
 307 has_uid (GSList *list, const gchar *uid)
 308 {
 309         GSList *cursor = list;
 310
 311         if (!uid)
 312                 return FALSE;
 313
 314         while (cursor) {
 315                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 316                         return TRUE;
 317                 cursor = g_slist_next (cursor);
 318         }
 319         return FALSE;
 320 }
 321
 322
 323 /* remove all from the list have have uid = uid */
 324 static GSList*
 325 remove_uid (GSList *list, const gchar *uid)
 326 {
 327         GSList *cursor = list, *start = list;
 328
 329         if (!uid)
 330                 return FALSE;
 331
 332         while (cursor) {
 333                 GSList *next = g_slist_next (cursor);
 334                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 335                         g_free (cursor->data);
 336                         start = g_slist_delete_link (start, cursor);
 337                 }
 338                 cursor = next;
 339         }
 340         return start;
 341 }
 342
 343
 344 static GSList *
 345 append_uid (GSList *list, const gchar *uid)
 346 {
 347         return g_slist_append (list, g_strdup(uid));
 348 }
 349
 350
 351
 352 void
 353 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 354 {
 355         ModestWindowMgrPrivate *priv;
 356         gchar* uid;
 357
 358         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 359         g_return_if_fail (TNY_IS_HEADER(header));
 360
 361         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 362         uid = modest_tny_folder_get_header_unique_id (header);
 363
 364         if (uid == NULL)
 365                 uid = g_strdup (alt_uid);
 366
 367         if (!has_uid (priv->preregistered_uids, uid)) {
 368                 MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 369                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 370         } else
 371                 MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
 372
 373         g_free (uid);
 374 }
 375
 376 void
 377 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 378 {
 379         ModestWindowMgrPrivate *priv;
 380         gchar* uid;
 381
 382         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 383         g_return_if_fail (TNY_IS_HEADER(header));
 384
 385         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 386         uid = modest_tny_folder_get_header_unique_id (header);
 387
 388         if (!has_uid (priv->preregistered_uids, uid)) {
 389                 MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 390                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 391         } else
 392                 MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
 393
 394         if (has_uid (priv->preregistered_uids, uid)) {
 395                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 396                 if (has_uid (priv->preregistered_uids, uid))
 397                         g_debug ("BUG: uid %s NOT removed", uid);
 398                 else
 399                         MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 400         }
 401
 402         g_free (uid);
 403 }
 404
 405
 406 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 407
 408 void
 409 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 410 {
 411         /* we don't need 'self', but for API consistency... */
 412         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 413
 414         g_return_if_fail (win && GTK_IS_WINDOW(win));
 415         g_return_if_fail (help_id);
 416
 417         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 418                                 g_strdup(help_id), g_free);
 419 }
 420
 421
 422 const gchar*
 423 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 424 {
 425         const gchar* help_id = NULL;
 426
 427         /* we don't need 'self', but for API consistency... */
 428         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 429
 430         g_return_val_if_fail (win, NULL);
 431         g_return_val_if_fail (GTK_IS_WINDOW(win), NULL);
 432
 433         if (MODEST_IS_MAIN_WINDOW (win)) {
 434                 GtkWidget *folder_view;
 435                 TnyFolderStore *folder_store;
 436
 437                 /* Get selected folder */
 438                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 439                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 440                 folder_store = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 441
 442                 /* Switch help_id */
 443                 if (folder_store && TNY_IS_FOLDER (folder_store)) {
 444                         help_id = modest_tny_folder_get_help_id (TNY_FOLDER (folder_store));
 445                         if (!help_id)
 446                                 g_warning ("%s: BUG: did not get a valid help_id", __FUNCTION__);
 447                 }
 448                 if (folder_store)
 449                         g_object_unref (folder_store);
 450         }
 451
 452         if (!help_id)
 453                 help_id = g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 454
 455         return help_id;
 456 }
 457
 458 static gint
 459 compare_msguids (ModestWindow *win,
 460                  const gchar *uid)
 461 {
 462         const gchar *msg_uid;
 463
 464         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 465                 return 1;
 466
 467         /* Get message uid from msg window */
 468         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 469                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 470                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 471                         return 0;
 472         } else {
 473                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 474         }
 475
 476         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 477                 return 0;
 478         else
 479                 return 1;
 480 }
 481
 482 void
 483 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 484 {
 485         ModestWindowMgrPrivate *priv = NULL;
 486         gboolean ret_value = FALSE;
 487
 488         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 489         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 490
 491         /* If there is a main window then try to close it, and it will
 492            close the others if needed */
 493         if (priv->main_window) {
 494                 g_signal_emit_by_name (priv->main_window, "delete-event", NULL, &ret_value);
 495         } else {
 496                 GList *wins = NULL, *next = NULL;
 497
 498                 /* delete-event handler actually removes window_list item, */
 499                 wins = priv->window_list;
 500                 while (wins) {
 501                         next = g_list_next (wins);
 502                         g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 503                         wins = next;
 504                 }
 505         }
 506 }
 507
 508
 509 gboolean
 510 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 511                                           ModestWindow **win)
 512 {
 513         ModestWindowMgrPrivate *priv = NULL;
 514         gchar* uid = NULL;
 515         gboolean has_header, has_window = FALSE;
 516         GList *item = NULL;
 517
 518         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 519         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 520
 521         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 522
 523         uid = modest_tny_folder_get_header_unique_id (header);
 524
 525         if (win)
 526                 *win = NULL;
 527
 528         has_header = has_uid (priv->preregistered_uids, uid);
 529
 530         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 531         if (item) {
 532                 has_window = TRUE;
 533                 if (win) {
 534                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 535                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 536                                 g_debug ("not a valid window!");
 537                         else {
 538                                 g_debug ("found a window");
 539                                 *win = MODEST_WINDOW (item->data);
 540                         }
 541                 }
 542         }
 543         g_free (uid);
 544
 545         return has_header || has_window;
 546 }
 547
 548 static const gchar *
 549 get_show_toolbar_key (GType window_type,
 550                       gboolean fullscreen)
 551 {
 552         const gchar *key = NULL;
 553
 554         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 555                 key = (fullscreen) ?
 556                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 557                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 558         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 559                 key = (fullscreen) ?
 560                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 561                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 562         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 563                 key = (fullscreen) ?
 564                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 565                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 566         else
 567                 g_return_val_if_reached (NULL);
 568
 569         return key;
 570 }
 571
 572 #ifdef MODEST_PLATFORM_MAEMO
 573 static void
 574 on_window_is_topmost (GObject    *gobject,
 575                       GParamSpec *arg1,
 576                       gpointer    user_data)
 577 {
 578         ModestWindowMgr *self;
 579         ModestWindowMgrPrivate *priv;
 580         ModestWindow *win = (ModestWindow *) gobject;
 581
 582         g_return_if_fail (MODEST_IS_WINDOW_MGR (user_data));
 583
 584         self = MODEST_WINDOW_MGR (user_data);
 585         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 586
 587         if (hildon_window_get_is_topmost (HILDON_WINDOW (win)))
 588                 priv->current_top = win;
 589 }
 590
 591 #else
 592 static gboolean
 593 on_window_state_event (GtkWidget           *widget,
 594                        GdkEventWindowState *event,
 595                        gpointer             user_data)
 596 {
 597         ModestWindowMgr *self;
 598         ModestWindowMgrPrivate *priv;
 599
 600         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (user_data), FALSE);
 601
 602         self = MODEST_WINDOW_MGR (user_data);
 603         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 604
 605         MODEST_DEBUG_BLOCK (
 606                             if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
 607                                     g_print ("GDK_WINDOW_STATE_WITHDRAWN\n");
 608                             if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 609                                     g_print ("GDK_WINDOW_STATE_ICONIFIED\n");
 610                             if (event->changed_mask & GDK_WINDOW_STATE_MAXIMIZED)
 611                                     g_print ("GDK_WINDOW_STATE_MAXIMIZED\n");
 612                             if (event->changed_mask & GDK_WINDOW_STATE_STICKY)
 613                                     g_print ("GDK_WINDOW_STATE_STICKY\n");
 614                             if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
 615                                     g_print ("GDK_WINDOW_STATE_FULLSCREEN\n");
 616                             if (event->changed_mask & GDK_WINDOW_STATE_ABOVE)
 617                                     g_print ("GDK_WINDOW_STATE_ABOVE\n");
 618                             if (event->changed_mask & GDK_WINDOW_STATE_BELOW)
 619                                     g_print ("GDK_WINDOW_STATE_BELOW\n");
 620                             );
 621         if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN ||
 622             event->changed_mask & GDK_WINDOW_STATE_ABOVE) {
 623                 priv->current_top = MODEST_WINDOW (widget);
 624         }
 625
 626         return FALSE;
 627 }
 628 #endif
 629
 630 void
 631 modest_window_mgr_register_window (ModestWindowMgr *self,
 632                                    ModestWindow *window)
 633 {
 634         GList *win;
 635         ModestWindowMgrPrivate *priv;
 636         gint *handler_id;
 637         const gchar *key;
 638
 639         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 640         g_return_if_fail (GTK_IS_WINDOW (window));
 641
 642         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 643
 644         win = g_list_find (priv->window_list, window);
 645         if (win) {
 646                 /* this is for the case we want to register the window and it was already
 647                  * registered. We leave silently.
 648                  */
 649                 return;
 650         }
 651
 652         /* Check that it's not a second main window */
 653         if (MODEST_IS_MAIN_WINDOW (window)) {
 654                 if (priv->main_window) {
 655                         g_warning ("%s: trying to register a second main window",
 656                                    __FUNCTION__);
 657                         return;
 658                 } else {
 659                         priv->main_window = window;
 660                         load_new_view (self);
 661                         load_new_editor (self);
 662                 }
 663         }
 664
 665         /* remove from the list of pre-registered uids */
 666         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 667                 const gchar *uid = modest_msg_view_window_get_message_uid
 668                         (MODEST_MSG_VIEW_WINDOW (window));
 669
 670                 if (!has_uid (priv->preregistered_uids, uid))
 671                         g_debug ("weird: no uid for window (%s)", uid);
 672
 673                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
 674
 675                 priv->preregistered_uids =
 676                         remove_uid (priv->preregistered_uids,
 677                                     modest_msg_view_window_get_message_uid
 678                                     (MODEST_MSG_VIEW_WINDOW (window)));
 679         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 680                 const gchar *uid = modest_msg_edit_window_get_message_uid
 681                         (MODEST_MSG_EDIT_WINDOW (window));
 682
 683                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 684
 685                 priv->preregistered_uids =
 686                         remove_uid (priv->preregistered_uids,
 687                                     modest_msg_edit_window_get_message_uid
 688                                     (MODEST_MSG_EDIT_WINDOW (window)));
 689         }
 690
 691         /* Add to list. Keep a reference to the window */
 692         g_object_ref (window);
 693         priv->window_list = g_list_prepend (priv->window_list, window);
 694
 695         /* Listen to window state changes. Unfortunately
 696            window-state-event does not properly work for the Maemo
 697            version, so we need to use is-topmost and the ifdef */
 698 #ifdef MODEST_PLATFORM_MAEMO
 699         priv->window_state_uids =
 700                 modest_signal_mgr_connect (priv->window_state_uids,
 701                                            G_OBJECT (window),
 702                                            "notify::is-topmost",
 703                                            G_CALLBACK (on_window_is_topmost),
 704                                            self);
 705 #else
 706         priv->window_state_uids =
 707                 modest_signal_mgr_connect (priv->window_state_uids,
 708                                            G_OBJECT (window),
 709                                            "window-state-event",
 710                                            G_CALLBACK (on_window_state_event),
 711                                            self);
 712 #endif
 713         /* Listen to object destruction */
 714         handler_id = g_malloc0 (sizeof (gint));
 715         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 716         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 717
 718         /* If there is a msg view window, let the main window listen the msg-changed signal */
 719         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 720                 gulong *handler;
 721                 handler = g_malloc0 (sizeof (gulong));
 722                 *handler = g_signal_connect (window, "msg-changed",
 723                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 724                                              priv->main_window);
 725                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 726         }
 727
 728         /* Put into fullscreen if needed */
 729         if (priv->fullscreen_mode)
 730                 gtk_window_fullscreen (GTK_WINDOW (window));
 731
 732         /* Show/hide toolbar & fullscreen */
 733         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 734         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 735 }
 736
 737 static void
 738 cancel_window_operations (ModestWindow *window)
 739 {
 740         GSList* pending_ops = NULL;
 741
 742         /* cancel open and receive operations */
 743         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 744                                                                  G_OBJECT (window));
 745         while (pending_ops != NULL) {
 746                 ModestMailOperationTypeOperation type;
 747                 GSList* tmp_list = NULL;
 748
 749                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 750                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 751                         modest_mail_operation_cancel (pending_ops->data);
 752                 }
 753                 g_object_unref (G_OBJECT (pending_ops->data));
 754                 tmp_list = pending_ops;
 755                 pending_ops = g_slist_next (pending_ops);
 756                 g_slist_free_1 (tmp_list);
 757         }
 758 }
 759
 760
 761
 762 static gboolean
 763 on_window_destroy (ModestWindow *window,
 764                    GdkEvent *event,
 765                    ModestWindowMgr *self)
 766 {
 767         gint dialog_response = GTK_RESPONSE_NONE;
 768         gboolean no_propagate = FALSE;
 769
 770         /* Specific stuff first */
 771         if (MODEST_IS_MAIN_WINDOW (window)) {
 772                 ModestWindowMgrPrivate *priv;
 773                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 774
 775                 /* If more than one window already opened */
 776                 if (g_list_length (priv->window_list) > 1) {
 777
 778                         /* Present the window if it's not visible now */
 779                         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 780                                 gtk_window_present (GTK_WINDOW (window));
 781                         /* Create the confirmation dialog MSG-NOT308 */
 782                         dialog_response = modest_platform_run_confirmation_dialog (
 783                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 784
 785                         /* If the user wants to close all the windows */
 786                         if ((dialog_response == GTK_RESPONSE_OK)
 787                             || (dialog_response == GTK_RESPONSE_ACCEPT)
 788                             || (dialog_response == GTK_RESPONSE_YES)) {
 789                                         GList *iter = priv->window_list;
 790                                         do {
 791                                                 if (iter->data != window) {
 792                                                         GList *tmp = iter->next;
 793                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 794                                                                         event,
 795                                                                         self);
 796                                                         iter = tmp;
 797                                                 } else {
 798                                                         iter = g_list_next (iter);
 799                                                 }
 800                                         } while (iter);
 801                         } else {
 802                                 return TRUE;
 803                         }
 804                 }
 805
 806                 /* Do not unregister it, just hide */
 807                 gtk_widget_hide_all (GTK_WIDGET (window));
 808
 809                 /* Cancel pending operations */
 810                 cancel_window_operations (window);
 811
 812                 /* Fake the window system, make it think that there is no window */
 813                 if (modest_window_mgr_num_windows (self) == 0)
 814                         g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 815
 816                 no_propagate = TRUE;
 817         }
 818         else {
 819                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 820                         gboolean sent = FALSE;
 821                         gint response = GTK_RESPONSE_ACCEPT;
 822                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 823                         /* Save currently edited message to Drafts if it was not sent */
 824                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 825
 826                                 /* Raise the window if it's minimized */
 827                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 828                                         gtk_window_present (GTK_WINDOW (window));
 829
 830                                 response =
 831                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 832                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 833                                 /* Save to drafts */
 834                                 if (response == GTK_RESPONSE_OK)
 835                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 836                                                 return TRUE;
 837                         }
 838                 }
 839                 /* Unregister window */
 840                 modest_window_mgr_unregister_window (self, window);
 841                 no_propagate = FALSE;
 842         }
 843
 844         return no_propagate;
 845 }
 846
 847 static void
 848 disconnect_msg_changed (gpointer key,
 849                         gpointer value,
 850                         gpointer user_data)
 851 {
 852         guint handler_id;
 853         handler_id = GPOINTER_TO_UINT(value);
 854
 855         if (key && G_IS_OBJECT(key))
 856                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 857 }
 858
 859 void
 860 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 861                                      ModestWindow *window)
 862 {
 863         GList *win;
 864         ModestWindowMgrPrivate *priv;
 865         gulong *tmp, handler_id;
 866
 867         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 868         g_return_if_fail (MODEST_IS_WINDOW (window));
 869
 870         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 871
 872         win = g_list_find (priv->window_list, window);
 873         if (!win) {
 874                 g_warning ("Trying to unregister a window that has not being registered yet");
 875                 return;
 876         }
 877
 878         /* If it's the main window unset it */
 879         if (priv->main_window == window) {
 880                 priv->main_window = NULL;
 881
 882                 /* Disconnect all emissions of msg-changed */
 883                 if (priv->viewer_handlers) {
 884                         g_hash_table_foreach (priv->viewer_handlers,
 885                                               disconnect_msg_changed,
 886                                               NULL);
 887                         g_hash_table_destroy (priv->viewer_handlers);
 888                         priv->viewer_handlers = NULL;
 889                 }
 890         }
 891
 892         /* Remove the viewer window handler from the hash table. The
 893            HashTable could not exist if the main window was closed
 894            when there were other windows remaining */
 895         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 896                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 897                 /* If the viewer was created without a main window
 898                    (for example when opening a message through D-Bus
 899                    the viewer handlers was not registered */
 900                 if (tmp) {
 901                         g_signal_handler_disconnect (window, *tmp);
 902                         g_hash_table_remove (priv->viewer_handlers, window);
 903                 }
 904         }
 905
 906         /* Save state */
 907         modest_window_save_state (window);
 908
 909         /* Remove from list & hash table */
 910         priv->window_list = g_list_remove_link (priv->window_list, win);
 911         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 912         handler_id = *tmp;
 913         g_hash_table_remove (priv->destroy_handlers, window);
 914
 915         /* cancel open and receive operations */
 916         cancel_window_operations (window);
 917
 918         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 919         if (priv->window_state_uids) {
 920 #ifdef MODEST_PLATFORM_MAEMO
 921                 priv->window_state_uids =
 922                         modest_signal_mgr_disconnect (priv->window_state_uids,
 923                                                       G_OBJECT (window),
 924                                                       "notify::is-topmost");
 925 #else
 926                 priv->window_state_uids =
 927                         modest_signal_mgr_disconnect (priv->window_state_uids,
 928                                                       G_OBJECT (window),
 929                                                       "window-state-event");
 930 #endif
 931         }
 932
 933         /* Disconnect the "delete-event" handler, we won't need it anymore */
 934         g_signal_handler_disconnect (window, handler_id);
 935
 936         /* Disconnect all the window signals */
 937         modest_window_disconnect_signals (window);
 938
 939         /* Destroy the window */
 940         gtk_widget_destroy (win->data);
 941
 942         /* If there are no more windows registered emit the signal */
 943         if (modest_window_mgr_num_windows (self) == 0)
 944                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 945 }
 946
 947
 948
 949 void
 950 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 951                                        gboolean on)
 952 {
 953         ModestWindowMgrPrivate *priv;
 954         GList *win = NULL;
 955         ModestConf *conf;
 956
 957         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 958
 959         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 960
 961         /* If there is no change do nothing */
 962         if (priv->fullscreen_mode == on)
 963                 return;
 964
 965         priv->fullscreen_mode = on;
 966
 967         conf = modest_runtime_get_conf ();
 968
 969         /* Update windows */
 970         win = priv->window_list;
 971         while (win) {
 972                 gboolean show;
 973                 const gchar *key = NULL;
 974
 975                 /* Getting this from gconf everytime is not that
 976                    expensive, we'll do it just a few times */
 977                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 978                 show = modest_conf_get_bool (conf, key, NULL);
 979
 980                 /* Set fullscreen/unfullscreen */
 981                 if (on)
 982                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 983                 else
 984                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 985
 986                 /* Show/Hide toolbar */
 987                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 988
 989                 win = g_list_next (win);
 990         }
 991 }
 992
 993 gboolean
 994 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 995 {
 996         ModestWindowMgrPrivate *priv;
 997
 998         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 999
1000         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1001
1002         return priv->fullscreen_mode;
1003 }
1004
1005 void
1006 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
1007                                  GType window_type,
1008                                  gboolean show_toolbars,
1009                                  gboolean fullscreen)
1010 {
1011         ModestWindowMgrPrivate *priv;
1012         ModestConf *conf;
1013         const gchar *key = NULL;
1014
1015         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1016
1017         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1018         conf = modest_runtime_get_conf ();
1019
1020         /* If nothing changes then return */
1021         key = get_show_toolbar_key (window_type, fullscreen);
1022         conf = modest_runtime_get_conf ();
1023         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
1024                 return;
1025
1026         /* Save in conf */
1027         modest_conf_set_bool (conf, key, show_toolbars, NULL);
1028
1029         /* Apply now if the view mode is the right one */
1030         if ((fullscreen && priv->fullscreen_mode) ||
1031             (!fullscreen && !priv->fullscreen_mode)) {
1032
1033                 GList *win = priv->window_list;
1034
1035                 while (win) {
1036                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
1037                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
1038                                                             show_toolbars);
1039                         win = g_list_next (win);
1040                 }
1041         }
1042 }
1043
1044 ModestWindow*
1045 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
1046 {
1047         ModestWindowMgrPrivate *priv;
1048
1049         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1050         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1051
1052         /* create the main window, if it hasn't been created yet */
1053         if (!priv->main_window && create) {
1054                 /* modest_window_mgr_register_window will set priv->main_window */
1055                 modest_window_mgr_register_window (self, modest_main_window_new ());
1056                 MODEST_DEBUG_BLOCK(
1057                         g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
1058                 );
1059         }
1060
1061         return priv->main_window;
1062 }
1063
1064
1065 gboolean
1066 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
1067 {
1068         ModestWindowMgrPrivate *priv;
1069
1070         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1071         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1072
1073         return priv->main_window != NULL;
1074 }
1075
1076
1077 GtkWindow *
1078 modest_window_mgr_get_modal (ModestWindowMgr *self)
1079 {
1080         ModestWindowMgrPrivate *priv;
1081
1082         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1083         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1084
1085         return g_queue_peek_head (priv->modal_windows);
1086 }
1087
1088
1089 void
1090 modest_window_mgr_set_modal (ModestWindowMgr *self,
1091                              GtkWindow *window)
1092 {
1093         GtkWindow *old_modal;
1094         ModestWindowMgrPrivate *priv;
1095
1096         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1097         g_return_if_fail (GTK_IS_WINDOW (window));
1098
1099         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1100         g_mutex_lock (priv->queue_lock);
1101         old_modal = g_queue_peek_head (priv->modal_windows);
1102         g_mutex_unlock (priv->queue_lock);
1103
1104         if (!old_modal) {
1105                 /* make us transient wrt the main window then */
1106                 if (priv->current_top && ((GtkWindow *) priv->current_top != window)) {
1107                         gtk_window_set_transient_for (window, GTK_WINDOW(priv->current_top));
1108                 } else {
1109                         ModestWindow *main_win = modest_window_mgr_get_main_window (self, FALSE);
1110                         if (GTK_WINDOW(main_win) != window) /* they should not be the same */
1111                                 gtk_window_set_transient_for (window, GTK_WINDOW(main_win));
1112                 }
1113                 gtk_window_set_modal (window, TRUE);
1114         } else {
1115                 /* un-modalize the old one; the one on top should be the
1116                  * modal one */
1117                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
1118                 gtk_window_set_modal (window, TRUE);
1119         }
1120
1121         /* this will be the new modal window */
1122         g_mutex_lock (priv->queue_lock);
1123         g_queue_push_head (priv->modal_windows, window);
1124         g_mutex_unlock (priv->queue_lock);
1125
1126         if (GTK_IS_DIALOG (window))
1127                 /* Note that response is not always enough because it
1128                    could be captured and removed easily by dialogs but
1129                    works for most of situations */
1130                 priv->modal_handler_uids =
1131                         modest_signal_mgr_connect (priv->modal_handler_uids,
1132                                                    G_OBJECT (window),
1133                                                    "response",
1134                                                    G_CALLBACK (on_modal_dialog_close),
1135                                                    self);
1136         else
1137                 priv->modal_handler_uids =
1138                         modest_signal_mgr_connect (priv->modal_handler_uids,
1139                                                    G_OBJECT (window),
1140                                                    "delete-event",
1141                                                    G_CALLBACK (on_modal_window_close),
1142                                                    self);
1143 }
1144
1145
1146 static void
1147 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
1148 {
1149         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1150         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1151
1152         /* Forget this window,
1153          * so hibernation will be allowed again if no windows are remembered: */
1154         priv->windows_that_prevent_hibernation =
1155                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
1156 }
1157
1158 static void
1159 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
1160 {
1161         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1162         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1163
1164         GtkWindow *window = GTK_WINDOW (widget);
1165
1166         priv->windows_that_prevent_hibernation =
1167                         g_slist_append (priv->windows_that_prevent_hibernation, window);
1168
1169         /* Allow hibernation again when the window has been hidden: */
1170         g_signal_connect (window, "hide",
1171                 G_CALLBACK (on_nonhibernating_window_hide), self);
1172 }
1173
1174 void
1175 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
1176                                                                   GtkWindow *window)
1177 {
1178         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1179
1180         if (GTK_WIDGET_VISIBLE(window)) {
1181                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
1182         } else {
1183                 /* Wait for it to be shown: */
1184                 g_signal_connect (window, "show",
1185                         G_CALLBACK (on_nonhibernating_window_show), self);
1186         }
1187 }
1188
1189 gboolean
1190 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
1191 {
1192         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1193
1194         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1195
1196         /* Prevent hibernation if any open windows are currently
1197          * preventing hibernation: */
1198         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
1199 }
1200
1201
1202 void
1203 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
1204 {
1205         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1206
1207         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1208
1209         /* Iterate over all windows */
1210         GList *win = priv->window_list;
1211         while (win) {
1212                 ModestWindow *window = MODEST_WINDOW (win->data);
1213                 if (window) {
1214                         /* This calls the vfunc,
1215                          * so each window can do its own thing: */
1216                         modest_window_save_state (window);
1217                 }
1218
1219                 win = g_list_next (win);
1220         }
1221 }
1222
1223 static gboolean
1224 idle_top_modal (gpointer data)
1225 {
1226         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1227         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1228         GtkWindow *topmost;
1229
1230         /* Get the top modal */
1231         g_mutex_lock (priv->queue_lock);
1232         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1233         g_mutex_unlock (priv->queue_lock);
1234
1235         /* Show it */
1236         if (topmost) {
1237                 gdk_threads_enter ();
1238                 gtk_window_present (topmost);
1239                 gdk_threads_leave ();
1240         }
1241
1242         return FALSE;
1243 }
1244
1245 static void
1246 remove_modal_from_queue (GtkWidget *widget,
1247                          ModestWindowMgr *self)
1248 {
1249         ModestWindowMgrPrivate *priv;
1250         GList *item = NULL;
1251
1252         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1253
1254         /* Remove from queue. We don't use remove, because we want to
1255            exit if the widget does not belong to the queue */
1256         g_mutex_lock (priv->queue_lock);
1257         item = g_queue_find (priv->modal_windows, widget);
1258         if (!item) {
1259                 g_warning ("Trying to remove a modal window that is not registered");
1260                 g_mutex_unlock (priv->queue_lock);
1261                 return;
1262         }
1263         g_queue_unlink (priv->modal_windows, item);
1264         g_mutex_unlock (priv->queue_lock);
1265
1266         /* Disconnect handler */
1267         priv->modal_handler_uids =
1268                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1269                                               G_OBJECT (widget),
1270                                               GTK_IS_DIALOG (widget) ?
1271                                               "response" :
1272                                               "destroy-event");
1273
1274         /* Schedule the next one for being shown */
1275         g_idle_add (idle_top_modal, self);
1276 }
1277
1278 static gboolean
1279 on_modal_window_close (GtkWidget *widget,
1280                        GdkEvent *event,
1281                        gpointer user_data)
1282 {
1283         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1284
1285         /* Remove modal window from queue */
1286         remove_modal_from_queue (widget, self);
1287
1288         /* Continue */
1289         return FALSE;
1290 }
1291
1292 static void
1293 on_modal_dialog_close (GtkDialog *dialog,
1294                        gint arg1,
1295                        gpointer user_data)
1296 {
1297         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1298
1299         /* Remove modal window from queue */
1300         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1301 }
1302
1303 gint
1304 modest_window_mgr_num_windows (ModestWindowMgr *self)
1305 {
1306         ModestWindowMgrPrivate *priv;
1307         gint num_windows = 0;
1308
1309         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
1310
1311         priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
1312
1313         if (priv->window_list)
1314                 num_windows = g_list_length (priv->window_list);
1315
1316         /* Do not take into account the main window if it was hidden */
1317         if (priv->main_window && !GTK_WIDGET_VISIBLE (priv->main_window))
1318                 num_windows--;
1319
1320         return num_windows + priv->banner_counter;
1321 }
1322
1323 GtkWidget *
1324 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
1325 {
1326         GtkWidget *result;
1327         ModestWindowMgrPrivate *priv;
1328
1329         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1330
1331         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1332
1333         if (priv->cached_editor) {
1334                 result = priv->cached_editor;
1335                 priv->cached_editor = NULL;
1336                 load_new_editor (self);
1337         } else {
1338                 result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
1339         }
1340
1341         return result;
1342 }
1343
1344 GtkWidget *
1345 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
1346 {
1347         GtkWidget *result;
1348         ModestWindowMgrPrivate *priv;
1349
1350         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1351
1352         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1353
1354         if (priv->cached_view) {
1355                 result = priv->cached_view;
1356                 priv->cached_view = NULL;
1357                 load_new_view (self);
1358         } else {
1359                 result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
1360         }
1361
1362         return result;
1363 }
1364
1365 void
1366 modest_window_mgr_register_banner (ModestWindowMgr *self)
1367 {
1368         ModestWindowMgrPrivate *priv;
1369
1370         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1371         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1372
1373         priv->banner_counter++;
1374
1375 }
1376
1377 void
1378 modest_window_mgr_unregister_banner (ModestWindowMgr *self)
1379 {
1380         ModestWindowMgrPrivate *priv;
1381
1382         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1383         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1384
1385         priv->banner_counter--;
1386         if (modest_window_mgr_num_windows (self) == 0)
1387                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
1388 }