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_destroy      (GtkObject *object,
  56                                           gpointer   user_data);
  57
  58 static void     on_modal_dialog_close    (GtkDialog *dialog,
  59                                           gint arg1,
  60                                           gpointer user_data);
  61
  62 static const gchar* get_show_toolbar_key (GType window_type,
  63                                           gboolean fullscreen);
  64
  65 /* list my signals  */
  66 enum {
  67         WINDOW_LIST_EMPTY_SIGNAL,
  68         NUM_SIGNALS
  69 };
  70
  71 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
  72 struct _ModestWindowMgrPrivate {
  73         GList        *window_list;
  74         guint         banner_counter;
  75
  76         ModestWindow *main_window;
  77
  78         GMutex       *queue_lock;
  79         GQueue       *modal_windows;
  80
  81         gboolean     fullscreen_mode;
  82
  83         GSList       *windows_that_prevent_hibernation;
  84         GSList       *preregistered_uids;
  85         GHashTable   *destroy_handlers;
  86         GHashTable   *viewer_handlers;
  87         GSList       *window_state_uids;
  88
  89         guint        closing_time;
  90
  91         GSList       *modal_handler_uids;
  92         GtkWidget    *cached_view;
  93         GtkWidget    *cached_editor;
  94         guint        idle_load_view_id;
  95         guint        idle_load_editor_id;
  96
  97         ModestWindow *current_top;
  98 };
  99 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 100                                                MODEST_TYPE_WINDOW_MGR, \
 101                                                ModestWindowMgrPrivate))
 102 /* globals */
 103 static GObjectClass *parent_class = NULL;
 104
 105 /* uncomment the following if you have defined any signals */
 106 static guint signals[NUM_SIGNALS] = {0};
 107
 108 GType
 109 modest_window_mgr_get_type (void)
 110 {
 111         static GType my_type = 0;
 112         if (!my_type) {
 113                 static const GTypeInfo my_info = {
 114                         sizeof(ModestWindowMgrClass),
 115                         NULL,           /* base init */
 116                         NULL,           /* base finalize */
 117                         (GClassInitFunc) modest_window_mgr_class_init,
 118                         NULL,           /* class finalize */
 119                         NULL,           /* class data */
 120                         sizeof(ModestWindowMgr),
 121                         1,              /* n_preallocs */
 122                         (GInstanceInitFunc) modest_window_mgr_init,
 123                         NULL
 124                 };
 125                 my_type = g_type_register_static (G_TYPE_OBJECT,
 126                                                   "ModestWindowMgr",
 127                                                   &my_info, 0);
 128         }
 129         return my_type;
 130 }
 131
 132 static void
 133 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 134 {
 135         GObjectClass *gobject_class;
 136         gobject_class = (GObjectClass*) klass;
 137
 138         parent_class            = g_type_class_peek_parent (klass);
 139         gobject_class->finalize = modest_window_mgr_finalize;
 140
 141         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 142
 143
 144         /**
 145          * ModestWindowMgr::window-list-empty
 146          * @self: the #ModestWindowMgr that emits the signal
 147          * @user_data: user data set when the signal handler was connected
 148          *
 149          * Issued whenever the window list becomes empty
 150          */
 151         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 152                 g_signal_new ("window-list-empty",
 153                               G_TYPE_FROM_CLASS (gobject_class),
 154                               G_SIGNAL_RUN_FIRST,
 155                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 156                               NULL, NULL,
 157                               g_cclosure_marshal_VOID__VOID,
 158                               G_TYPE_NONE, 0);
 159 }
 160
 161 static gboolean
 162 idle_load_view (ModestWindowMgr *mgr)
 163 {
 164         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 165
 166         priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
 167         priv->idle_load_view_id = 0;
 168         return FALSE;
 169 }
 170
 171 static gboolean
 172 idle_load_editor (ModestWindowMgr *mgr)
 173 {
 174         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 175
 176         priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
 177         priv->idle_load_editor_id = 0;
 178         return FALSE;
 179 }
 180
 181 static void
 182 load_new_view (ModestWindowMgr *self)
 183 {
 184         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 185         if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
 186                 priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
 187 }
 188
 189 static void
 190 load_new_editor (ModestWindowMgr *self)
 191 {
 192         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 193         if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
 194                 priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 195 }
 196
 197 static void
 198 modest_window_mgr_init (ModestWindowMgr *obj)
 199 {
 200         ModestWindowMgrPrivate *priv;
 201
 202         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 203         priv->window_list = NULL;
 204         priv->banner_counter = 0;
 205         priv->main_window = NULL;
 206         priv->fullscreen_mode = FALSE;
 207         priv->current_top = NULL;
 208         priv->window_state_uids = NULL;
 209
 210         priv->modal_windows = g_queue_new ();
 211         priv->queue_lock = g_mutex_new ();
 212
 213         priv->preregistered_uids = NULL;
 214
 215         /* Could not initialize it from gconf, singletons are not
 216            ready yet */
 217         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 218         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 219
 220         priv->closing_time = 0;
 221
 222         priv->modal_handler_uids = NULL;
 223         priv->cached_view = NULL;
 224         priv->cached_editor = NULL;
 225 }
 226
 227 static void
 228 modest_window_mgr_finalize (GObject *obj)
 229 {
 230         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 231
 232         if (priv->idle_load_view_id > 0) {
 233                 g_source_remove (priv->idle_load_view_id);
 234                 priv->idle_load_view_id = 0;
 235         }
 236
 237         if (priv->idle_load_editor_id > 0) {
 238                 g_source_remove (priv->idle_load_editor_id);
 239                 priv->idle_load_editor_id = 0;
 240         }
 241
 242         if (priv->cached_view) {
 243                 gtk_widget_destroy (priv->cached_view);
 244                 priv->cached_view = NULL;
 245         }
 246         if (priv->cached_editor) {
 247                 gtk_widget_destroy (priv->cached_editor);
 248                 priv->cached_editor = NULL;
 249         }
 250
 251         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
 252         priv->window_state_uids = NULL;
 253
 254         if (priv->window_list) {
 255                 GList *iter = priv->window_list;
 256                 /* unregister pending windows */
 257                 while (iter) {
 258                         ModestWindow *window = (ModestWindow *) iter->data;
 259                         iter = g_list_next (iter);
 260                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj), window);
 261                 }
 262                 g_list_free (priv->window_list);
 263                 priv->window_list = NULL;
 264         }
 265
 266         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 267         g_slist_free (priv->preregistered_uids);
 268
 269
 270         /* Free the hash table with the handlers */
 271         if (priv->destroy_handlers) {
 272                 g_hash_table_destroy (priv->destroy_handlers);
 273                 priv->destroy_handlers = NULL;
 274         }
 275
 276         if (priv->viewer_handlers) {
 277                 g_hash_table_destroy (priv->viewer_handlers);
 278                 priv->viewer_handlers = NULL;
 279         }
 280
 281         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 282         priv->modal_handler_uids = NULL;
 283
 284         if (priv->modal_windows) {
 285                 g_mutex_lock (priv->queue_lock);
 286                 g_queue_free (priv->modal_windows);
 287                 priv->modal_windows = NULL;
 288                 g_mutex_unlock (priv->queue_lock);
 289         }
 290         g_mutex_free (priv->queue_lock);
 291
 292         /* Do not unref priv->main_window because it does not hold a
 293            new reference */
 294
 295
 296         G_OBJECT_CLASS(parent_class)->finalize (obj);
 297 }
 298
 299 ModestWindowMgr*
 300 modest_window_mgr_new (void)
 301 {
 302         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 303 }
 304
 305
 306
 307
 308 /* do we have uid? */
 309 static gboolean
 310 has_uid (GSList *list, const gchar *uid)
 311 {
 312         GSList *cursor = list;
 313
 314         if (!uid)
 315                 return FALSE;
 316
 317         while (cursor) {
 318                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 319                         return TRUE;
 320                 cursor = g_slist_next (cursor);
 321         }
 322         return FALSE;
 323 }
 324
 325
 326 /* remove all from the list have have uid = uid */
 327 static GSList*
 328 remove_uid (GSList *list, const gchar *uid)
 329 {
 330         GSList *cursor = list, *start = list;
 331
 332         if (!uid)
 333                 return FALSE;
 334
 335         while (cursor) {
 336                 GSList *next = g_slist_next (cursor);
 337                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 338                         g_free (cursor->data);
 339                         start = g_slist_delete_link (start, cursor);
 340                 }
 341                 cursor = next;
 342         }
 343         return start;
 344 }
 345
 346
 347 static GSList *
 348 append_uid (GSList *list, const gchar *uid)
 349 {
 350         return g_slist_append (list, g_strdup(uid));
 351 }
 352
 353
 354
 355 void
 356 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 357 {
 358         ModestWindowMgrPrivate *priv;
 359         gchar* uid;
 360
 361         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 362         g_return_if_fail (TNY_IS_HEADER(header));
 363
 364         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 365         uid = modest_tny_folder_get_header_unique_id (header);
 366
 367         if (uid == NULL)
 368                 uid = g_strdup (alt_uid);
 369
 370         if (!has_uid (priv->preregistered_uids, uid)) {
 371                 MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 372                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 373         } else
 374                 MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
 375
 376         g_free (uid);
 377 }
 378
 379 void
 380 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 381 {
 382         ModestWindowMgrPrivate *priv;
 383         gchar* uid;
 384
 385         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 386         g_return_if_fail (TNY_IS_HEADER(header));
 387
 388         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 389         uid = modest_tny_folder_get_header_unique_id (header);
 390
 391         if (!has_uid (priv->preregistered_uids, uid)) {
 392                 MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 393                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 394         } else
 395                 MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
 396
 397         if (has_uid (priv->preregistered_uids, uid)) {
 398                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 399                 if (has_uid (priv->preregistered_uids, uid))
 400                         g_debug ("BUG: uid %s NOT removed", uid);
 401                 else
 402                         MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 403         }
 404
 405         g_free (uid);
 406 }
 407
 408
 409 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 410
 411 void
 412 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 413 {
 414         /* we don't need 'self', but for API consistency... */
 415         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 416
 417         g_return_if_fail (win && GTK_IS_WINDOW(win));
 418         g_return_if_fail (help_id);
 419
 420         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 421                                 g_strdup(help_id), g_free);
 422 }
 423
 424
 425 const gchar*
 426 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 427 {
 428         /* we don't need 'self', but for API consistency... */
 429         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR (self), NULL);
 430         g_return_val_if_fail (win, NULL);
 431
 432         return g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 433 }
 434
 435 static gint
 436 compare_msguids (ModestWindow *win,
 437                  const gchar *uid)
 438 {
 439         const gchar *msg_uid;
 440
 441         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 442                 return 1;
 443
 444         /* Get message uid from msg window */
 445         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 446                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 447                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 448                         return 0;
 449         } else {
 450                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 451         }
 452
 453         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 454                 return 0;
 455         else
 456                 return 1;
 457 }
 458
 459 void
 460 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 461 {
 462         ModestWindowMgrPrivate *priv = NULL;
 463         gboolean ret_value = FALSE;
 464
 465         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 466         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 467
 468         /* If there is a main window then try to close it, and it will
 469            close the others if needed */
 470         if (priv->main_window) {
 471                 g_signal_emit_by_name (priv->main_window, "delete-event", NULL, &ret_value);
 472         } else {
 473                 GList *wins = NULL, *next = NULL;
 474
 475                 /* delete-event handler actually removes window_list item, */
 476                 wins = priv->window_list;
 477                 while (wins) {
 478                         next = g_list_next (wins);
 479                         g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 480                         wins = next;
 481                 }
 482         }
 483 }
 484
 485
 486 gboolean
 487 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 488                                           ModestWindow **win)
 489 {
 490         ModestWindowMgrPrivate *priv = NULL;
 491         gchar* uid = NULL;
 492         gboolean has_header, has_window = FALSE;
 493         GList *item = NULL;
 494
 495         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 496         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 497
 498         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 499
 500         uid = modest_tny_folder_get_header_unique_id (header);
 501
 502         if (win)
 503                 *win = NULL;
 504
 505         has_header = has_uid (priv->preregistered_uids, uid);
 506
 507         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 508         if (item) {
 509                 has_window = TRUE;
 510                 if (win) {
 511                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 512                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 513                                 g_debug ("not a valid window!");
 514                         else {
 515                                 g_debug ("found a window");
 516                                 *win = MODEST_WINDOW (item->data);
 517                         }
 518                 }
 519         }
 520         g_free (uid);
 521
 522         return has_header || has_window;
 523 }
 524
 525 static const gchar *
 526 get_show_toolbar_key (GType window_type,
 527                       gboolean fullscreen)
 528 {
 529         const gchar *key = NULL;
 530
 531         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 532                 key = (fullscreen) ?
 533                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 534                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 535         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 536                 key = (fullscreen) ?
 537                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 538                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 539         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 540                 key = (fullscreen) ?
 541                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 542                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 543         else
 544                 g_return_val_if_reached (NULL);
 545
 546         return key;
 547 }
 548
 549 #ifdef MODEST_PLATFORM_MAEMO
 550 static void
 551 on_window_is_topmost (GObject    *gobject,
 552                       GParamSpec *arg1,
 553                       gpointer    user_data)
 554 {
 555         ModestWindowMgr *self;
 556         ModestWindowMgrPrivate *priv;
 557         ModestWindow *win = (ModestWindow *) gobject;
 558
 559         g_return_if_fail (MODEST_IS_WINDOW_MGR (user_data));
 560
 561         self = MODEST_WINDOW_MGR (user_data);
 562         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 563
 564         if (hildon_window_get_is_topmost (HILDON_WINDOW (win)))
 565                 priv->current_top = win;
 566 }
 567
 568 #else
 569 static gboolean
 570 on_window_state_event (GtkWidget           *widget,
 571                        GdkEventWindowState *event,
 572                        gpointer             user_data)
 573 {
 574         ModestWindowMgr *self;
 575         ModestWindowMgrPrivate *priv;
 576
 577         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (user_data), FALSE);
 578
 579         self = MODEST_WINDOW_MGR (user_data);
 580         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 581
 582         MODEST_DEBUG_BLOCK (
 583                             if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
 584                                     g_print ("GDK_WINDOW_STATE_WITHDRAWN\n");
 585                             if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 586                                     g_print ("GDK_WINDOW_STATE_ICONIFIED\n");
 587                             if (event->changed_mask & GDK_WINDOW_STATE_MAXIMIZED)
 588                                     g_print ("GDK_WINDOW_STATE_MAXIMIZED\n");
 589                             if (event->changed_mask & GDK_WINDOW_STATE_STICKY)
 590                                     g_print ("GDK_WINDOW_STATE_STICKY\n");
 591                             if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
 592                                     g_print ("GDK_WINDOW_STATE_FULLSCREEN\n");
 593                             if (event->changed_mask & GDK_WINDOW_STATE_ABOVE)
 594                                     g_print ("GDK_WINDOW_STATE_ABOVE\n");
 595                             if (event->changed_mask & GDK_WINDOW_STATE_BELOW)
 596                                     g_print ("GDK_WINDOW_STATE_BELOW\n");
 597                             );
 598         if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN ||
 599             event->changed_mask & GDK_WINDOW_STATE_ABOVE) {
 600                 priv->current_top = MODEST_WINDOW (widget);
 601         }
 602
 603         return FALSE;
 604 }
 605 #endif
 606
 607 void
 608 modest_window_mgr_register_window (ModestWindowMgr *self,
 609                                    ModestWindow *window)
 610 {
 611         GList *win;
 612         ModestWindowMgrPrivate *priv;
 613         gint *handler_id;
 614         const gchar *key;
 615
 616         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 617         g_return_if_fail (GTK_IS_WINDOW (window));
 618
 619         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 620
 621         win = g_list_find (priv->window_list, window);
 622         if (win) {
 623                 /* this is for the case we want to register the window and it was already
 624                  * registered. We leave silently.
 625                  */
 626                 return;
 627         }
 628
 629         /* Check that it's not a second main window */
 630         if (MODEST_IS_MAIN_WINDOW (window)) {
 631                 if (priv->main_window) {
 632                         g_warning ("%s: trying to register a second main window",
 633                                    __FUNCTION__);
 634                         return;
 635                 } else {
 636                         priv->main_window = window;
 637                         load_new_view (self);
 638                         load_new_editor (self);
 639                 }
 640         }
 641
 642         /* remove from the list of pre-registered uids */
 643         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 644                 const gchar *uid = modest_msg_view_window_get_message_uid
 645                         (MODEST_MSG_VIEW_WINDOW (window));
 646
 647                 if (!has_uid (priv->preregistered_uids, uid))
 648                         g_debug ("weird: no uid for window (%s)", uid);
 649
 650                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
 651
 652                 priv->preregistered_uids =
 653                         remove_uid (priv->preregistered_uids,
 654                                     modest_msg_view_window_get_message_uid
 655                                     (MODEST_MSG_VIEW_WINDOW (window)));
 656         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 657                 const gchar *uid = modest_msg_edit_window_get_message_uid
 658                         (MODEST_MSG_EDIT_WINDOW (window));
 659
 660                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 661
 662                 priv->preregistered_uids =
 663                         remove_uid (priv->preregistered_uids,
 664                                     modest_msg_edit_window_get_message_uid
 665                                     (MODEST_MSG_EDIT_WINDOW (window)));
 666         }
 667
 668         /* Add to list. Keep a reference to the window */
 669         g_object_ref (window);
 670         priv->window_list = g_list_prepend (priv->window_list, window);
 671
 672         /* Listen to window state changes. Unfortunately
 673            window-state-event does not properly work for the Maemo
 674            version, so we need to use is-topmost and the ifdef */
 675 #ifdef MODEST_PLATFORM_MAEMO
 676         priv->window_state_uids =
 677                 modest_signal_mgr_connect (priv->window_state_uids,
 678                                            G_OBJECT (window),
 679                                            "notify::is-topmost",
 680                                            G_CALLBACK (on_window_is_topmost),
 681                                            self);
 682 #else
 683         priv->window_state_uids =
 684                 modest_signal_mgr_connect (priv->window_state_uids,
 685                                            G_OBJECT (window),
 686                                            "window-state-event",
 687                                            G_CALLBACK (on_window_state_event),
 688                                            self);
 689 #endif
 690         /* Listen to object destruction */
 691         handler_id = g_malloc0 (sizeof (gint));
 692         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 693         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 694
 695         /* If there is a msg view window, let the main window listen the msg-changed signal */
 696         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 697                 gulong *handler;
 698                 handler = g_malloc0 (sizeof (gulong));
 699                 *handler = g_signal_connect (window, "msg-changed",
 700                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 701                                              priv->main_window);
 702                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 703         }
 704
 705         /* Put into fullscreen if needed */
 706         if (priv->fullscreen_mode)
 707                 gtk_window_fullscreen (GTK_WINDOW (window));
 708
 709         /* Show/hide toolbar & fullscreen */
 710         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 711         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 712 }
 713
 714 static void
 715 cancel_window_operations (ModestWindow *window)
 716 {
 717         GSList* pending_ops = NULL;
 718
 719         /* cancel open and receive operations */
 720         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 721                                                                  G_OBJECT (window));
 722         while (pending_ops != NULL) {
 723                 ModestMailOperationTypeOperation type;
 724                 GSList* tmp_list = NULL;
 725
 726                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 727                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 728                         modest_mail_operation_cancel (pending_ops->data);
 729                 }
 730                 g_object_unref (G_OBJECT (pending_ops->data));
 731                 tmp_list = pending_ops;
 732                 pending_ops = g_slist_next (pending_ops);
 733                 g_slist_free_1 (tmp_list);
 734         }
 735 }
 736
 737
 738
 739 static gboolean
 740 on_window_destroy (ModestWindow *window,
 741                    GdkEvent *event,
 742                    ModestWindowMgr *self)
 743 {
 744         gint dialog_response = GTK_RESPONSE_NONE;
 745         gboolean no_propagate = FALSE;
 746
 747         /* Specific stuff first */
 748         if (MODEST_IS_MAIN_WINDOW (window)) {
 749                 ModestWindowMgrPrivate *priv;
 750                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 751
 752                 /* If more than one window already opened */
 753                 if (g_list_length (priv->window_list) > 1) {
 754
 755                         /* Present the window if it's not visible now */
 756                         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window))) {
 757                                 gtk_window_present (GTK_WINDOW (window));
 758                                 priv->current_top = window;
 759                         }
 760                         /* Create the confirmation dialog MSG-NOT308 */
 761                         dialog_response = modest_platform_run_confirmation_dialog (
 762                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 763
 764                         /* If the user wants to close all the windows */
 765                         if ((dialog_response == GTK_RESPONSE_OK)
 766                             || (dialog_response == GTK_RESPONSE_ACCEPT)
 767                             || (dialog_response == GTK_RESPONSE_YES)) {
 768                                         GList *iter = priv->window_list;
 769                                         do {
 770                                                 if (iter->data != window) {
 771                                                         GList *tmp = iter->next;
 772                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 773                                                                         event,
 774                                                                         self);
 775                                                         iter = tmp;
 776                                                 } else {
 777                                                         iter = g_list_next (iter);
 778                                                 }
 779                                         } while (iter);
 780                         } else {
 781                                 return TRUE;
 782                         }
 783                 }
 784
 785                 /* Do not unregister it, just hide */
 786                 gtk_widget_hide_all (GTK_WIDGET (window));
 787
 788                 /* Cancel pending operations */
 789                 cancel_window_operations (window);
 790
 791                 /* Fake the window system, make it think that there is no window */
 792                 if (modest_window_mgr_num_windows (self) == 0)
 793                         g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 794
 795                 no_propagate = TRUE;
 796         }
 797         else {
 798                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 799                         gboolean sent = FALSE;
 800                         gint response = GTK_RESPONSE_ACCEPT;
 801                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 802                         /* Save currently edited message to Drafts if it was not sent */
 803                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 804
 805                                 /* Raise the window if it's minimized */
 806                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 807                                         gtk_window_present (GTK_WINDOW (window));
 808
 809                                 response =
 810                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 811                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 812                                 /* Save to drafts */
 813                                 if (response == GTK_RESPONSE_OK)
 814                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 815                                                 return TRUE;
 816                         }
 817                 }
 818                 /* Unregister window */
 819                 modest_window_mgr_unregister_window (self, window);
 820                 no_propagate = TRUE;
 821         }
 822
 823         return no_propagate;
 824 }
 825
 826 static void
 827 disconnect_msg_changed (gpointer key,
 828                         gpointer value,
 829                         gpointer user_data)
 830 {
 831         guint handler_id;
 832         handler_id = GPOINTER_TO_UINT(value);
 833
 834         if (key && G_IS_OBJECT(key))
 835                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 836 }
 837
 838 void
 839 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 840                                      ModestWindow *window)
 841 {
 842         GList *win;
 843         ModestWindowMgrPrivate *priv;
 844         gulong *tmp, handler_id;
 845
 846         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 847         g_return_if_fail (MODEST_IS_WINDOW (window));
 848
 849         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 850
 851         win = g_list_find (priv->window_list, window);
 852         if (!win) {
 853                 g_warning ("Trying to unregister a window that has not being registered yet");
 854                 return;
 855         }
 856
 857         /* If it's the main window unset it */
 858         if (priv->main_window == window) {
 859                 priv->main_window = NULL;
 860
 861                 /* Disconnect all emissions of msg-changed */
 862                 if (priv->viewer_handlers) {
 863                         g_hash_table_foreach (priv->viewer_handlers,
 864                                               disconnect_msg_changed,
 865                                               NULL);
 866                         g_hash_table_destroy (priv->viewer_handlers);
 867                         priv->viewer_handlers = NULL;
 868                 }
 869         }
 870
 871         /* Remove the viewer window handler from the hash table. The
 872            HashTable could not exist if the main window was closed
 873            when there were other windows remaining */
 874         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 875                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 876                 /* If the viewer was created without a main window
 877                    (for example when opening a message through D-Bus
 878                    the viewer handlers was not registered */
 879                 if (tmp) {
 880                         g_signal_handler_disconnect (window, *tmp);
 881                         g_hash_table_remove (priv->viewer_handlers, window);
 882                 }
 883         }
 884
 885         /* Save state */
 886         modest_window_save_state (window);
 887
 888         /* Remove from list & hash table */
 889         priv->window_list = g_list_remove_link (priv->window_list, win);
 890         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 891         handler_id = *tmp;
 892
 893         g_hash_table_remove (priv->destroy_handlers, window);
 894
 895         /* cancel open and receive operations */
 896         cancel_window_operations (window);
 897
 898         /* Check if it's the topmost window, and remove the window from the stack.
 899          * This is needed for the cases there's no other topmost window that will
 900          * replace it in topmost handler.
 901          */
 902          if (window == priv->current_top)
 903                  priv->current_top = NULL;
 904
 905         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 906         if (priv->window_state_uids) {
 907 #ifdef MODEST_PLATFORM_MAEMO
 908                 priv->window_state_uids =
 909                         modest_signal_mgr_disconnect (priv->window_state_uids,
 910                                                       G_OBJECT (window),
 911                                                       "notify::is-topmost");
 912 #else
 913                 priv->window_state_uids =
 914                         modest_signal_mgr_disconnect (priv->window_state_uids,
 915                                                       G_OBJECT (window),
 916                                                       "window-state-event");
 917 #endif
 918         }
 919
 920         /* Disconnect the "delete-event" handler, we won't need it anymore */
 921         g_signal_handler_disconnect (window, handler_id);
 922
 923         /* Disconnect all the window signals */
 924         modest_window_disconnect_signals (window);
 925
 926         /* Destroy the window */
 927         g_object_unref (win->data);
 928         gtk_widget_destroy (win->data);
 929         g_list_free (win);
 930
 931         /* If there are no more windows registered emit the signal */
 932         if (modest_window_mgr_num_windows (self) == 0)
 933                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 934 }
 935
 936
 937
 938 void
 939 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 940                                        gboolean on)
 941 {
 942         ModestWindowMgrPrivate *priv;
 943         GList *win = NULL;
 944         ModestConf *conf;
 945
 946         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 947
 948         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 949
 950         /* If there is no change do nothing */
 951         if (priv->fullscreen_mode == on)
 952                 return;
 953
 954         priv->fullscreen_mode = on;
 955
 956         conf = modest_runtime_get_conf ();
 957
 958         /* Update windows */
 959         win = priv->window_list;
 960         while (win) {
 961                 gboolean show;
 962                 const gchar *key = NULL;
 963
 964                 /* Getting this from gconf everytime is not that
 965                    expensive, we'll do it just a few times */
 966                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 967                 show = modest_conf_get_bool (conf, key, NULL);
 968
 969                 /* Set fullscreen/unfullscreen */
 970                 if (on)
 971                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 972                 else
 973                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 974
 975                 /* Show/Hide toolbar */
 976                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 977
 978                 win = g_list_next (win);
 979         }
 980 }
 981
 982 gboolean
 983 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 984 {
 985         ModestWindowMgrPrivate *priv;
 986
 987         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 988
 989         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 990
 991         return priv->fullscreen_mode;
 992 }
 993
 994 void
 995 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
 996                                  GType window_type,
 997                                  gboolean show_toolbars,
 998                                  gboolean fullscreen)
 999 {
1000         ModestWindowMgrPrivate *priv;
1001         ModestConf *conf;
1002         const gchar *key = NULL;
1003
1004         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1005
1006         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1007         conf = modest_runtime_get_conf ();
1008
1009         /* If nothing changes then return */
1010         key = get_show_toolbar_key (window_type, fullscreen);
1011         conf = modest_runtime_get_conf ();
1012         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
1013                 return;
1014
1015         /* Save in conf */
1016         modest_conf_set_bool (conf, key, show_toolbars, NULL);
1017
1018         /* Apply now if the view mode is the right one */
1019         if ((fullscreen && priv->fullscreen_mode) ||
1020             (!fullscreen && !priv->fullscreen_mode)) {
1021
1022                 GList *win = priv->window_list;
1023
1024                 while (win) {
1025                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
1026                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
1027                                                             show_toolbars);
1028                         win = g_list_next (win);
1029                 }
1030         }
1031 }
1032
1033 ModestWindow*
1034 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
1035 {
1036         ModestWindowMgrPrivate *priv;
1037
1038         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1039         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1040
1041         /* create the main window, if it hasn't been created yet */
1042         if (!priv->main_window && create) {
1043                 /* modest_window_mgr_register_window will set priv->main_window */
1044                 modest_window_mgr_register_window (self, modest_main_window_new ());
1045                 MODEST_DEBUG_BLOCK(
1046                         g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
1047                 );
1048         }
1049
1050         return priv->main_window;
1051 }
1052
1053
1054 gboolean
1055 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
1056 {
1057         ModestWindowMgrPrivate *priv;
1058
1059         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1060         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1061
1062         return priv->main_window != NULL;
1063 }
1064
1065
1066 GtkWindow *
1067 modest_window_mgr_get_modal (ModestWindowMgr *self)
1068 {
1069         ModestWindowMgrPrivate *priv;
1070
1071         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1072         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1073
1074         return g_queue_peek_head (priv->modal_windows);
1075 }
1076
1077
1078 void
1079 modest_window_mgr_set_modal (ModestWindowMgr *self,
1080                              GtkWindow *window)
1081 {
1082         GtkWindow *old_modal;
1083         ModestWindowMgrPrivate *priv;
1084
1085         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1086         g_return_if_fail (GTK_IS_WINDOW (window));
1087
1088         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1089         g_mutex_lock (priv->queue_lock);
1090         old_modal = g_queue_peek_head (priv->modal_windows);
1091         g_mutex_unlock (priv->queue_lock);
1092
1093         if (!old_modal) {
1094                 /* make us transient wrt the main window then */
1095                 if (priv->current_top && ((GtkWindow *) priv->current_top != window)) {
1096                         gtk_window_set_transient_for (window, GTK_WINDOW(priv->current_top));
1097                 } else {
1098                         ModestWindow *main_win = modest_window_mgr_get_main_window (self, FALSE);
1099                         if (GTK_WINDOW(main_win) != window) /* they should not be the same */
1100                                 gtk_window_set_transient_for (window, GTK_WINDOW(main_win));
1101                 }
1102                 gtk_window_set_modal (window, TRUE);
1103         } else {
1104                 /* un-modalize the old one; the one on top should be the
1105                  * modal one */
1106                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
1107                 gtk_window_set_modal (window, TRUE);
1108         }
1109
1110         /* this will be the new modal window */
1111         g_mutex_lock (priv->queue_lock);
1112         g_queue_push_head (priv->modal_windows, window);
1113         g_mutex_unlock (priv->queue_lock);
1114
1115         if (GTK_IS_DIALOG (window)) {
1116                 /* Note that response is not always enough because it
1117                    could be captured and removed easily by dialogs but
1118                    works for most of situations */
1119                 priv->modal_handler_uids =
1120                         modest_signal_mgr_connect (priv->modal_handler_uids,
1121                                                    G_OBJECT (window),
1122                                                    "response",
1123                                                    G_CALLBACK (on_modal_dialog_close),
1124                                                    self);
1125                 /* We need this as well because dialogs are often
1126                    destroyed with gtk_widget_destroy and this one will
1127                    prevent response from happening */
1128                 priv->modal_handler_uids =
1129                         modest_signal_mgr_connect (priv->modal_handler_uids,
1130                                                    G_OBJECT (window),
1131                                                    "destroy",
1132                                                    G_CALLBACK (on_modal_dialog_destroy),
1133                                                    self);
1134         } else {
1135                 priv->modal_handler_uids =
1136                         modest_signal_mgr_connect (priv->modal_handler_uids,
1137                                                    G_OBJECT (window),
1138                                                    "delete-event",
1139                                                    G_CALLBACK (on_modal_window_close),
1140                                                    self);
1141         }
1142         /* Destroy width parent */
1143         gtk_window_set_destroy_with_parent (window, TRUE);
1144 }
1145
1146
1147 static void
1148 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
1149 {
1150         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1151         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1152
1153         /* Forget this window,
1154          * so hibernation will be allowed again if no windows are remembered: */
1155         priv->windows_that_prevent_hibernation =
1156                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
1157 }
1158
1159 static void
1160 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
1161 {
1162         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1163         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1164
1165         GtkWindow *window = GTK_WINDOW (widget);
1166
1167         priv->windows_that_prevent_hibernation =
1168                         g_slist_append (priv->windows_that_prevent_hibernation, window);
1169
1170         /* Allow hibernation again when the window has been hidden: */
1171         g_signal_connect (window, "hide",
1172                 G_CALLBACK (on_nonhibernating_window_hide), self);
1173 }
1174
1175 void
1176 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
1177                                                                   GtkWindow *window)
1178 {
1179         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1180
1181         if (GTK_WIDGET_VISIBLE(window)) {
1182                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
1183         } else {
1184                 /* Wait for it to be shown: */
1185                 g_signal_connect (window, "show",
1186                         G_CALLBACK (on_nonhibernating_window_show), self);
1187         }
1188 }
1189
1190 gboolean
1191 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
1192 {
1193         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1194
1195         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1196
1197         /* Prevent hibernation if any open windows are currently
1198          * preventing hibernation: */
1199         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
1200 }
1201
1202
1203 void
1204 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
1205 {
1206         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1207
1208         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1209
1210         /* Iterate over all windows */
1211         GList *win = priv->window_list;
1212         while (win) {
1213                 ModestWindow *window = MODEST_WINDOW (win->data);
1214                 if (window) {
1215                         /* This calls the vfunc,
1216                          * so each window can do its own thing: */
1217                         modest_window_save_state (window);
1218                 }
1219
1220                 win = g_list_next (win);
1221         }
1222 }
1223
1224 static gboolean
1225 idle_top_modal (gpointer data)
1226 {
1227         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1228         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1229         GtkWindow *topmost;
1230
1231         /* Get the top modal */
1232         g_mutex_lock (priv->queue_lock);
1233         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1234         g_mutex_unlock (priv->queue_lock);
1235
1236         /* Show it */
1237         if (topmost) {
1238                 gdk_threads_enter ();
1239                 gtk_window_present (topmost);
1240                 /* It seems that the window looses modality if some
1241                    other is shown on top of it after set_transient_for
1242                    and set_parent */
1243                 gtk_window_set_modal (topmost, TRUE);
1244                 gdk_threads_leave ();
1245         }
1246
1247         return FALSE;
1248 }
1249
1250 static void
1251 remove_modal_from_queue (GtkWidget *widget,
1252                          ModestWindowMgr *self)
1253 {
1254         ModestWindowMgrPrivate *priv;
1255         GList *item = NULL;
1256
1257         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1258
1259         /* Remove from queue. We don't use remove, because we want to
1260            exit if the widget does not belong to the queue */
1261         g_mutex_lock (priv->queue_lock);
1262         item = g_queue_find (priv->modal_windows, widget);
1263         if (!item) {
1264                 g_warning ("Trying to remove a modal window that is not registered");
1265                 g_mutex_unlock (priv->queue_lock);
1266                 return;
1267         }
1268         g_queue_unlink (priv->modal_windows, item);
1269         g_mutex_unlock (priv->queue_lock);
1270
1271         /* Disconnect handler */
1272         priv->modal_handler_uids =
1273                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1274                                               G_OBJECT (widget),
1275                                               GTK_IS_DIALOG (widget) ?
1276                                               "response" :
1277                                               "delete-event");
1278         if (GTK_IS_DIALOG (widget))
1279                 priv->modal_handler_uids =
1280                         modest_signal_mgr_disconnect (priv->modal_handler_uids,
1281                                                       G_OBJECT (widget),
1282                                                       "destroy");
1283
1284         /* Schedule the next one for being shown */
1285         g_idle_add (idle_top_modal, self);
1286 }
1287
1288 static gboolean
1289 on_modal_window_close (GtkWidget *widget,
1290                        GdkEvent *event,
1291                        gpointer user_data)
1292 {
1293         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1294
1295         /* Remove modal window from queue */
1296         remove_modal_from_queue (widget, self);
1297
1298         /* Continue */
1299         return FALSE;
1300 }
1301
1302 static void
1303 on_modal_dialog_close (GtkDialog *dialog,
1304                        gint arg1,
1305                        gpointer user_data)
1306 {
1307         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1308
1309         /* Remove modal window from queue. Note that if "destroy"
1310            signal was invoked before the response the window could be
1311            already deleted */
1312         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1313 }
1314
1315 static void
1316 on_modal_dialog_destroy (GtkObject *object,
1317                          gpointer   user_data)
1318 {
1319         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1320
1321         /* Remove modal window from queue */
1322         remove_modal_from_queue (GTK_WIDGET (object), self);
1323 }
1324
1325 gint
1326 modest_window_mgr_num_windows (ModestWindowMgr *self)
1327 {
1328         ModestWindowMgrPrivate *priv;
1329         gint num_windows = 0;
1330
1331         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
1332
1333         priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
1334
1335         if (priv->window_list)
1336                 num_windows = g_list_length (priv->window_list);
1337
1338         /* Do not take into account the main window if it was hidden */
1339         if (priv->main_window && !GTK_WIDGET_VISIBLE (priv->main_window))
1340                 num_windows--;
1341
1342         return num_windows + priv->banner_counter;
1343 }
1344
1345 GtkWidget *
1346 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
1347 {
1348         GtkWidget *result;
1349         ModestWindowMgrPrivate *priv;
1350
1351         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1352
1353         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1354
1355         if (priv->cached_editor) {
1356                 result = priv->cached_editor;
1357                 priv->cached_editor = NULL;
1358                 load_new_editor (self);
1359         } else {
1360                 result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
1361         }
1362
1363         return result;
1364 }
1365
1366 GtkWidget *
1367 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
1368 {
1369         GtkWidget *result;
1370         ModestWindowMgrPrivate *priv;
1371
1372         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1373
1374         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1375
1376         if (priv->cached_view) {
1377                 result = priv->cached_view;
1378                 priv->cached_view = NULL;
1379                 load_new_view (self);
1380         } else {
1381                 result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
1382         }
1383
1384         return result;
1385 }
1386
1387 void
1388 modest_window_mgr_register_banner (ModestWindowMgr *self)
1389 {
1390         ModestWindowMgrPrivate *priv;
1391
1392         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1393         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1394
1395         priv->banner_counter++;
1396
1397 }
1398
1399 void
1400 modest_window_mgr_unregister_banner (ModestWindowMgr *self)
1401 {
1402         ModestWindowMgrPrivate *priv;
1403
1404         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1405         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1406
1407         priv->banner_counter--;
1408         if (modest_window_mgr_num_windows (self) == 0)
1409                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
1410 }