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