git.maemo.org Git - modest/blob - src/hildon2/modest-hildon2-window-mgr.c

   1 /* Copyright (c) 2008, 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 <hildon/hildon.h>
  32 #include "modest-hildon2-window.h"
  33 #include "modest-hildon2-window-mgr.h"
  34 #include "modest-msg-edit-window.h"
  35 #include "modest-mailboxes-window.h"
  36 #include "modest-header-window.h"
  37 #include "modest-main-window.h"
  38 #include "modest-conf.h"
  39 #include "modest-defs.h"
  40 #include "modest-signal-mgr.h"
  41 #include "modest-runtime.h"
  42 #include "modest-platform.h"
  43 #include "modest-ui-actions.h"
  44 #include "modest-debug.h"
  45 #include "modest-tny-folder.h"
  46 #include "modest-folder-window.h"
  47 #include "modest-accounts-window.h"
  48 #include "modest-maemo-utils.h"
  49 #include "modest-utils.h"
  50 #include "modest-tny-msg.h"
  51 #include <tny-merge-folder.h>
  52
  53 /* 'private'/'protected' functions */
  54 static void modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass);
  55 static void modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj);
  56 static void modest_hildon2_window_mgr_finalize   (GObject *obj);
  57
  58 static gboolean on_window_destroy        (ModestWindow *window,
  59                                           GdkEvent *event,
  60                                           ModestHildon2WindowMgr *self);
  61
  62 static gboolean modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
  63                                                            ModestWindow *window,
  64                                                            ModestWindow *parent);
  65 static void modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
  66                                                          ModestWindow *window);
  67 static void modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
  68                                                            gboolean on);
  69 static gboolean modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self);
  70 static void modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
  71                                                      GType window_type,
  72                                                      gboolean show_toolbars,
  73                                                      gboolean fullscreen);
  74 static ModestWindow* modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show);
  75 static GtkWindow *modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self);
  76 static void modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
  77                                                  GtkWindow *window,
  78                                                  GtkWindow *parent);
  79 static gboolean modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self,
  80                                                                   TnyHeader *header,
  81                                                                   ModestWindow **win);
  82 static GList *modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self);
  83 static gboolean modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self);
  84 static gboolean window_can_close (ModestWindow *window);
  85 static gboolean window_has_modals (ModestWindow *window);
  86 static ModestWindow *modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self);
  87 static ModestWindow *modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self);
  88 static gboolean modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self);
  89 static void osso_display_event_cb (osso_display_state_t state,
  90                                    gpointer data);
  91 static void on_account_removed (TnyAccountStore *acc_store,
  92                                 TnyAccount *account,
  93                                 gpointer user_data);
  94
  95 typedef struct _ModestHildon2WindowMgrPrivate ModestHildon2WindowMgrPrivate;
  96 struct _ModestHildon2WindowMgrPrivate {
  97         GList        *window_list;
  98         GMutex       *queue_lock;
  99         GQueue       *modal_windows;
 100
 101         gboolean     fullscreen_mode;
 102
 103         GHashTable   *destroy_handlers;
 104         GHashTable   *viewer_handlers;
 105         GSList       *window_state_uids;
 106
 107         guint        closing_time;
 108
 109         GSList       *modal_handler_uids;
 110         ModestWindow *current_top;
 111
 112         gulong        accounts_handler;
 113
 114         /* Display state */
 115         osso_display_state_t display_state;
 116 };
 117 #define MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 118                                                                                    MODEST_TYPE_HILDON2_WINDOW_MGR, \
 119                                                                                    ModestHildon2WindowMgrPrivate))
 120 /* globals */
 121 static GObjectClass *parent_class = NULL;
 122
 123 GType
 124 modest_hildon2_window_mgr_get_type (void)
 125 {
 126         static GType my_type = 0;
 127         if (!my_type) {
 128                 static const GTypeInfo my_info = {
 129                         sizeof(ModestHildon2WindowMgrClass),
 130                         NULL,           /* base init */
 131                         NULL,           /* base finalize */
 132                         (GClassInitFunc) modest_hildon2_window_mgr_class_init,
 133                         NULL,           /* class finalize */
 134                         NULL,           /* class data */
 135                         sizeof(ModestHildon2WindowMgr),
 136                         1,              /* n_preallocs */
 137                         (GInstanceInitFunc) modest_hildon2_window_mgr_instance_init,
 138                         NULL
 139                 };
 140                 my_type = g_type_register_static (MODEST_TYPE_WINDOW_MGR,
 141                                                   "ModestHildon2WindowMgr",
 142                                                   &my_info, 0);
 143         }
 144         return my_type;
 145 }
 146
 147 static void
 148 modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass)
 149 {
 150         GObjectClass *gobject_class;
 151         ModestWindowMgrClass *mgr_class;
 152
 153         gobject_class = (GObjectClass*) klass;
 154         mgr_class = (ModestWindowMgrClass *) klass;
 155
 156         parent_class            = g_type_class_peek_parent (klass);
 157         gobject_class->finalize = modest_hildon2_window_mgr_finalize;
 158         mgr_class->register_window = modest_hildon2_window_mgr_register_window;
 159         mgr_class->unregister_window = modest_hildon2_window_mgr_unregister_window;
 160         mgr_class->set_fullscreen_mode = modest_hildon2_window_mgr_set_fullscreen_mode;
 161         mgr_class->get_fullscreen_mode = modest_hildon2_window_mgr_get_fullscreen_mode;
 162         mgr_class->show_toolbars = modest_hildon2_window_mgr_show_toolbars;
 163         mgr_class->get_main_window = modest_hildon2_window_mgr_get_main_window;
 164         mgr_class->get_modal = modest_hildon2_window_mgr_get_modal;
 165         mgr_class->set_modal = modest_hildon2_window_mgr_set_modal;
 166         mgr_class->find_registered_header = modest_hildon2_window_mgr_find_registered_header;
 167         mgr_class->get_window_list = modest_hildon2_window_mgr_get_window_list;
 168         mgr_class->close_all_windows = modest_hildon2_window_mgr_close_all_windows;
 169         mgr_class->show_initial_window = modest_hildon2_window_mgr_show_initial_window;
 170         mgr_class->get_current_top = modest_hildon2_window_mgr_get_current_top;
 171         mgr_class->screen_is_on = modest_hildon2_window_mgr_screen_is_on;
 172
 173         g_type_class_add_private (gobject_class, sizeof(ModestHildon2WindowMgrPrivate));
 174
 175 }
 176
 177 static void
 178 modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj)
 179 {
 180         ModestHildon2WindowMgrPrivate *priv;
 181
 182         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
 183         priv->window_list = NULL;
 184         priv->fullscreen_mode = FALSE;
 185         priv->window_state_uids = NULL;
 186
 187         priv->modal_windows = g_queue_new ();
 188         priv->queue_lock = g_mutex_new ();
 189
 190         /* Could not initialize it from gconf, singletons are not
 191            ready yet */
 192         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 193         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 194
 195         priv->closing_time = 0;
 196
 197         priv->modal_handler_uids = NULL;
 198         priv->display_state = OSSO_DISPLAY_ON;
 199
 200         /* Listen for changes in the screen, we don't want to show a
 201            led pattern when the display is on for example */
 202         osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
 203                                       osso_display_event_cb,
 204                                       obj);
 205
 206 }
 207
 208 static void
 209 modest_hildon2_window_mgr_finalize (GObject *obj)
 210 {
 211         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
 212         ModestTnyAccountStore *acc_store;
 213
 214         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
 215         priv->window_state_uids = NULL;
 216
 217         osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
 218                                       NULL, NULL);
 219
 220         acc_store = modest_runtime_get_account_store ();
 221         if (acc_store && g_signal_handler_is_connected (acc_store, priv->accounts_handler))
 222                 g_signal_handler_disconnect (acc_store, priv->accounts_handler);
 223
 224         if (priv->window_list) {
 225                 GList *iter = priv->window_list;
 226                 /* unregister pending windows */
 227                 while (iter) {
 228                         ModestWindow *window = (ModestWindow *) iter->data;
 229                         iter = g_list_next (iter);
 230                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj), window);
 231                 }
 232                 g_list_free (priv->window_list);
 233                 priv->window_list = NULL;
 234         }
 235
 236         /* Free the hash table with the handlers */
 237         if (priv->destroy_handlers) {
 238                 g_hash_table_destroy (priv->destroy_handlers);
 239                 priv->destroy_handlers = NULL;
 240         }
 241
 242         if (priv->viewer_handlers) {
 243                 g_hash_table_destroy (priv->viewer_handlers);
 244                 priv->viewer_handlers = NULL;
 245         }
 246
 247         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 248         priv->modal_handler_uids = NULL;
 249
 250         if (priv->modal_windows) {
 251                 g_mutex_lock (priv->queue_lock);
 252                 g_queue_free (priv->modal_windows);
 253                 priv->modal_windows = NULL;
 254                 g_mutex_unlock (priv->queue_lock);
 255         }
 256         g_mutex_free (priv->queue_lock);
 257
 258         /* Do not unref priv->main_window because it does not hold a
 259            new reference */
 260
 261         G_OBJECT_CLASS(parent_class)->finalize (obj);
 262 }
 263
 264 ModestWindowMgr*
 265 modest_hildon2_window_mgr_new (void)
 266 {
 267         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_HILDON2_WINDOW_MGR, NULL));
 268 }
 269
 270 static gboolean
 271 modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self)
 272 {
 273         ModestHildon2WindowMgrPrivate *priv = NULL;
 274         gboolean ret_value = FALSE;
 275         GtkWidget *window;
 276         HildonWindowStack *stack;
 277         gboolean failed = FALSE;
 278
 279         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 280         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 281
 282         stack = hildon_window_stack_get_default ();
 283
 284         while ((window = hildon_window_stack_peek (stack)) != NULL) {
 285                 g_signal_emit_by_name (G_OBJECT (window), "delete-event", NULL, &ret_value);
 286                 if (ret_value == TRUE) {
 287                         failed = TRUE;
 288                         break;
 289                 }
 290         }
 291
 292         return !failed;
 293 }
 294
 295 static gint
 296 compare_msguids (ModestWindow *win,
 297                  const gchar *uid)
 298 {
 299         const gchar *msg_uid;
 300
 301         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 302                 return 1;
 303
 304         /* Get message uid from msg window */
 305         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 306                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 307                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 308                         return 0;
 309         } else {
 310                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 311         }
 312
 313         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 314                 return 0;
 315         else
 316                 return 1;
 317 }
 318
 319 static gint
 320 compare_headers (ModestWindow *win,
 321                  TnyHeader *header)
 322 {
 323         TnyHeader *my_header;
 324         gint result = 1;
 325
 326         if (!MODEST_IS_MSG_VIEW_WINDOW (win))
 327                 return 1;
 328
 329         /* Get message uid from msg window */
 330         my_header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 331         if (my_header) {
 332                 if (my_header == header)
 333                         result = 0;
 334                 g_object_unref (my_header);
 335         }
 336         return result;
 337 }
 338
 339
 340 static gboolean
 341 modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 342                                                   ModestWindow **win)
 343 {
 344         ModestHildon2WindowMgrPrivate *priv = NULL;
 345         gchar* uid = NULL;
 346         gboolean has_header, has_window = FALSE;
 347         GList *item = NULL;
 348
 349         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 350         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 351
 352         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 353
 354         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_header (self, header, win);
 355
 356         uid = modest_tny_folder_get_header_unique_id (header);
 357
 358         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 359         if (item) {
 360                 has_window = TRUE;
 361                 if (win) {
 362                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 363                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 364                                 g_debug ("not a valid window!");
 365                         else {
 366                                 g_debug ("found a window");
 367                                 *win = MODEST_WINDOW (item->data);
 368                         }
 369                 }
 370         }
 371         g_free (uid);
 372
 373         return has_header || has_window;
 374 }
 375
 376 static GList *
 377 modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self)
 378 {
 379         ModestHildon2WindowMgrPrivate *priv;
 380
 381         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 382         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 383
 384         return g_list_copy (priv->window_list);
 385 }
 386
 387 static gboolean
 388 modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
 389                                            ModestWindow *window,
 390                                            ModestWindow *parent)
 391 {
 392         GList *win;
 393         ModestHildon2WindowMgrPrivate *priv;
 394         gint *handler_id;
 395         HildonWindowStack *stack;
 396         gboolean nested_msg = FALSE;
 397         ModestWindow *current_top;
 398
 399         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 400         g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 401
 402         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 403
 404         stack = hildon_window_stack_get_default ();
 405         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 406
 407         win = g_list_find (priv->window_list, window);
 408         if (win) {
 409                 /* this is for the case we want to register the window
 410                    and it was already registered */
 411                 gtk_window_present (GTK_WINDOW (window));
 412                 return FALSE;
 413         }
 414
 415         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 416                 gchar *uid;
 417                 TnyHeader *header;
 418                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (window));
 419
 420                 if (header) {
 421                         uid = modest_tny_folder_get_header_unique_id (header);
 422
 423                         /* Embedded messages do not have uid */
 424                         if (uid) {
 425                                 if (g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids)) {
 426                                         g_debug ("%s found another view window showing the same header", __FUNCTION__);
 427                                         g_free (uid);
 428                                         g_object_unref (header);
 429                                         return FALSE;
 430                                 }
 431                                 g_free (uid);
 432                         } else {
 433                                 if (g_list_find_custom (priv->window_list, header, (GCompareFunc) compare_headers)) {
 434                                         g_debug ("%s found another view window showing the same header", __FUNCTION__);
 435                                         g_object_unref (header);
 436                                         return FALSE;
 437                                 }
 438                         }
 439                         g_object_unref (header);
 440                 }
 441         }
 442
 443         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_FOLDER_WINDOW (window)) {
 444                 gtk_window_present (GTK_WINDOW (window));
 445                 return FALSE;
 446         }
 447
 448         if (MODEST_IS_MAILBOXES_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 449                 gtk_window_present (GTK_WINDOW (window));
 450                 return FALSE;
 451         }
 452
 453         /* Mailboxes window can not replace folder windows */
 454         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 455                 gtk_window_present (GTK_WINDOW (current_top));
 456                 return FALSE;
 457         }
 458
 459         /* Trying to open a folders window and a mailboxes window at
 460            the same time from the accounts window is not allowed */
 461         if (MODEST_IS_MAILBOXES_WINDOW (current_top) &&
 462             MODEST_IS_FOLDER_WINDOW (window) &&
 463             MODEST_IS_ACCOUNTS_WINDOW (parent)) {
 464                 gtk_window_present (GTK_WINDOW (window));
 465                 return FALSE;
 466         }
 467
 468         if (MODEST_IS_HEADER_WINDOW (current_top) && MODEST_IS_HEADER_WINDOW (window)) {
 469                 g_debug ("Trying to register a second header window is not allowed");
 470                 gtk_window_present (GTK_WINDOW (current_top));
 471                 return FALSE;
 472         }
 473
 474         if (!MODEST_WINDOW_MGR_CLASS (parent_class)->register_window (self, window, parent))
 475                 goto fail;
 476
 477         /* Add to list. Keep a reference to the window */
 478         g_object_ref (window);
 479         priv->window_list = g_list_prepend (priv->window_list, window);
 480
 481         nested_msg = MODEST_IS_MSG_VIEW_WINDOW (window) &&
 482                 MODEST_IS_MSG_VIEW_WINDOW (parent);
 483
 484         /* Close views if they're being shown. Nevertheless we must
 485            allow nested messages */
 486         if (!nested_msg &&
 487             (MODEST_IS_MSG_EDIT_WINDOW (current_top) ||
 488              MODEST_IS_MSG_VIEW_WINDOW (current_top))) {
 489                 gboolean retval;
 490
 491                 /* If the current view has modal dialogs then
 492                    we fail to register the new view */
 493                 if ((current_top != NULL) &&
 494                     window_has_modals (MODEST_WINDOW (current_top))) {
 495                         /* Window on top but it has opened dialogs */
 496                         goto fail;
 497                 }
 498
 499                 /* Close the current view */
 500                 g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
 501                 if (retval == TRUE) {
 502                         /* Cancelled closing top window, then we fail to register */
 503                         goto fail;
 504                 }
 505         }
 506
 507         /* Listen to object destruction */
 508         handler_id = g_malloc0 (sizeof (gint));
 509         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 510         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 511
 512         /* Show toolbar always */
 513         modest_window_show_toolbar (window, TRUE);
 514
 515         return TRUE;
 516 fail:
 517         /* Add to list. Keep a reference to the window */
 518         priv->window_list = g_list_remove (priv->window_list, window);
 519         g_object_unref (window);
 520         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 521         if (current_top)
 522                 gtk_window_present (GTK_WINDOW (current_top));
 523         return FALSE;
 524 }
 525
 526 static void
 527 cancel_window_operations (ModestWindow *window)
 528 {
 529         GSList* pending_ops = NULL;
 530
 531         /* cancel open and receive operations */
 532         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 533                                                                  G_OBJECT (window));
 534         while (pending_ops != NULL) {
 535                 ModestMailOperationTypeOperation type;
 536                 GSList* tmp_list = NULL;
 537
 538                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 539                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 540                         modest_mail_operation_cancel (pending_ops->data);
 541                 }
 542                 g_object_unref (G_OBJECT (pending_ops->data));
 543                 tmp_list = pending_ops;
 544                 pending_ops = g_slist_next (pending_ops);
 545                 g_slist_free_1 (tmp_list);
 546         }
 547 }
 548
 549 static gboolean
 550 window_has_modals (ModestWindow *window)
 551 {
 552         GList *toplevels;
 553         GList *node;
 554         gboolean retvalue = FALSE;
 555
 556         /* First we fetch all toplevels */
 557         toplevels = gtk_window_list_toplevels ();
 558         for (node = toplevels; node != NULL; node = g_list_next (node)) {
 559                 if (GTK_IS_WINDOW (node->data) &&
 560                     gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window) &&
 561                     GTK_WIDGET_VISIBLE (node->data)) {
 562                         retvalue = TRUE;
 563                         break;
 564                 }
 565         }
 566         g_list_free (toplevels);
 567         return retvalue;
 568 }
 569
 570 static gboolean
 571 window_can_close (ModestWindow *window)
 572 {
 573         /* An editor can be always closed no matter the dialogs it has
 574          * on top. */
 575         if (MODEST_IS_MSG_EDIT_WINDOW (window))
 576                 return TRUE;
 577
 578         return !window_has_modals (window);
 579 }
 580
 581 static gboolean
 582 on_window_destroy (ModestWindow *window,
 583                    GdkEvent *event,
 584                    ModestHildon2WindowMgr *self)
 585 {
 586         gboolean no_propagate = FALSE;
 587
 588         if (!window_can_close (window))
 589                 return TRUE;
 590
 591         if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 592                 gboolean sent = FALSE;
 593                 sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 594                 /* Save currently edited message to Drafts if it was not sent */
 595                 if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 596                         ModestMsgEditWindow *edit_window;
 597                         MsgData *data;
 598
 599                         edit_window = MODEST_MSG_EDIT_WINDOW (window);
 600                         data = modest_msg_edit_window_get_msg_data (edit_window);
 601
 602                         if (data) {
 603                                 gint parts_count;
 604                                 guint64 parts_size, available_size, expected_size;
 605
 606                                 available_size = modest_utils_get_available_space (NULL);
 607                                 modest_msg_edit_window_get_parts_size (edit_window, &parts_count, &parts_size);
 608                                 expected_size = modest_tny_msg_estimate_size (data->plain_body,
 609                                                                               data->html_body,
 610                                                                               parts_count,
 611                                                                               parts_size);
 612                                 modest_msg_edit_window_free_msg_data (edit_window, data);
 613                                 data = NULL;
 614
 615                                 /* If there is not enough space
 616                                    available for saving the message
 617                                    then show an error and close the
 618                                    window without saving */
 619                                 if (expected_size >= available_size) {
 620                                         modest_platform_run_information_dialog (GTK_WINDOW (edit_window),
 621                                                                                 _("mail_in_ui_save_error"),
 622                                                                                 FALSE);
 623                                 } else {
 624                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 625                                                 return TRUE;
 626                                 }
 627                         } else {
 628                                 g_warning ("Edit window without message data. This is probably a bug");
 629                         }
 630                 }
 631         }
 632
 633         /* Unregister window */
 634         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
 635         no_propagate = FALSE;
 636
 637         return no_propagate;
 638 }
 639
 640 static void
 641 modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
 642                                              ModestWindow *window)
 643 {
 644         GList *win;
 645         ModestHildon2WindowMgrPrivate *priv;
 646         gulong *tmp, handler_id;
 647         guint num_windows;
 648
 649         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 650         g_return_if_fail (MODEST_IS_WINDOW (window));
 651
 652         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 653
 654         win = g_list_find (priv->window_list, window);
 655         if (!win) {
 656                 g_warning ("Trying to unregister a window that has not being registered yet");
 657                 return;
 658         }
 659
 660         /* Remove the viewer window handler from the hash table. The
 661            HashTable could not exist if the main window was closed
 662            when there were other windows remaining */
 663         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 664                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 665                 /* If the viewer was created without a main window
 666                    (for example when opening a message through D-Bus
 667                    the viewer handlers was not registered */
 668                 if (tmp) {
 669                         g_signal_handler_disconnect (window, *tmp);
 670                         g_hash_table_remove (priv->viewer_handlers, window);
 671                 }
 672         }
 673
 674         /* Remove from list & hash table */
 675         priv->window_list = g_list_remove_link (priv->window_list, win);
 676         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 677         handler_id = *tmp;
 678
 679         g_hash_table_remove (priv->destroy_handlers, window);
 680
 681         /* cancel open and receive operations */
 682         cancel_window_operations (window);
 683
 684         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 685         if (priv->window_state_uids) {
 686                 priv->window_state_uids =
 687                         modest_signal_mgr_disconnect (priv->window_state_uids,
 688                                                       G_OBJECT (window),
 689                                                       "notify::is-topmost");
 690         }
 691
 692         /* Disconnect the "delete-event" handler, we won't need it anymore */
 693         g_signal_handler_disconnect (window, handler_id);
 694
 695         /* Destroy the window */
 696         g_object_unref (win->data);
 697         g_list_free (win);
 698
 699         MODEST_WINDOW_MGR_CLASS (parent_class)->unregister_window (self, window);
 700
 701         /* We have to get the number of windows here in order not to
 702            emit the signal too many times */
 703         num_windows = modest_window_mgr_get_num_windows (self);
 704
 705         /* If there are no more windows registered emit the signal */
 706         if (num_windows == 0)
 707                 g_signal_emit_by_name (self, "window-list-empty");
 708 }
 709
 710
 711 static void
 712 modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 713                                                gboolean on)
 714 {
 715         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 716
 717         return;
 718 }
 719
 720 static gboolean
 721 modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 722 {
 723         return FALSE;
 724 }
 725
 726 static void
 727 modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
 728                                          GType window_type,
 729                                          gboolean show_toolbars,
 730                                          gboolean fullscreen)
 731 {
 732         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 733
 734         return;
 735 }
 736
 737 static ModestWindow*
 738 modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
 739 {
 740         ModestHildon2WindowMgrPrivate *priv;
 741         ModestWindow *result;
 742
 743         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 744         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 745
 746         /* TODO: make this return NULL always */
 747
 748         result = MODEST_WINDOW_MGR_CLASS (parent_class)->get_main_window (self, FALSE);
 749         /* create the main window, if it hasn't been created yet */
 750         if (!result && show) {
 751                 /* modest_window_mgr_register_window will set priv->main_window */
 752                 result = modest_main_window_new ();
 753                 /* We have to remove all other windows */
 754                 if (!modest_window_mgr_close_all_windows (self)) {
 755                         gtk_widget_destroy (GTK_WIDGET (result));
 756                         return NULL;
 757                 }
 758                 if (!modest_window_mgr_register_window (self, result, NULL)) {
 759                         gtk_widget_destroy (GTK_WIDGET (result));
 760                         return NULL;
 761                 }
 762                 MODEST_DEBUG_BLOCK(
 763                         g_debug ("%s: created main window: %p\n", __FUNCTION__, result);
 764                 );
 765         }
 766         if (show) {
 767                 gtk_widget_show_all (GTK_WIDGET (result));
 768                 gtk_window_present (GTK_WINDOW (result));
 769         }
 770
 771         return result;
 772 }
 773
 774
 775 static GtkWindow *
 776 modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self)
 777 {
 778         ModestHildon2WindowMgrPrivate *priv;
 779         GList *toplevel_list;
 780         GtkWidget *toplevel;
 781
 782         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 783         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 784
 785         toplevel = NULL;
 786         toplevel_list = gtk_window_list_toplevels ();
 787         while (toplevel_list) {
 788                 if (gtk_window_is_active (toplevel_list->data)) {
 789                         toplevel = toplevel_list->data;
 790                         break;
 791                 }
 792                 toplevel_list = g_list_next (toplevel_list);
 793         }
 794
 795         return NULL;
 796 }
 797
 798
 799 static void
 800 modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
 801                                      GtkWindow *window,
 802                                      GtkWindow *parent)
 803 {
 804         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 805         g_return_if_fail (GTK_IS_WINDOW (window));
 806
 807         gtk_window_set_modal (window, TRUE);
 808         gtk_window_set_transient_for (window, parent);
 809         gtk_window_set_destroy_with_parent (window, TRUE);
 810 }
 811
 812 static void
 813 on_account_removed (TnyAccountStore *acc_store,
 814                     TnyAccount *account,
 815                     gpointer user_data)
 816 {
 817         HildonWindowStack *stack;
 818         ModestWindow *current_top;
 819         gboolean has_accounts;
 820
 821         /* Ignore transport account removals */
 822         if (TNY_IS_TRANSPORT_ACCOUNT (account))
 823                 return;
 824
 825         stack = hildon_window_stack_get_default ();
 826         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 827         has_accounts = modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
 828
 829         /* if we're showing the header view of the currently deleted
 830            account, or the outbox and we deleted the last account,
 831            then close the window */
 832         if (current_top && MODEST_IS_HEADER_WINDOW (current_top)) {
 833                 ModestHeaderView *header_view;
 834                 TnyFolder *folder;
 835                 gboolean deleted = FALSE;
 836
 837                 header_view = modest_header_window_get_header_view (MODEST_HEADER_WINDOW (current_top));
 838                 folder = modest_header_view_get_folder (header_view);
 839                 if (folder) {
 840                         gboolean retval;
 841
 842                         /* Close if it's my account */
 843                         if (!TNY_IS_MERGE_FOLDER (folder)) {
 844                                 TnyAccount *my_account;
 845
 846                                 my_account = tny_folder_get_account (folder);
 847                                 if (my_account) {
 848                                         if (my_account == account) {
 849                                                 g_signal_emit_by_name (G_OBJECT (current_top),
 850                                                                        "delete-event",
 851                                                                        NULL, &retval);
 852                                                 deleted = TRUE;
 853                                         }
 854                                         g_object_unref (my_account);
 855                                 }
 856                         }
 857
 858                         /* Close if viewing outbox and no account left */
 859                         if (tny_folder_get_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 860                                 if (!has_accounts) {
 861                                         g_signal_emit_by_name (G_OBJECT (current_top),
 862                                                                "delete-event",
 863                                                                NULL, &retval);
 864                                         deleted = TRUE;
 865                                 }
 866                         }
 867                         g_object_unref (folder);
 868
 869                         if (deleted) {
 870                                 current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 871                         }
 872                 }
 873         }
 874 }
 875
 876 static ModestWindow *
 877 modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self)
 878 {
 879         ModestWindow *initial_window = NULL;
 880         ModestHildon2WindowMgrPrivate *priv;
 881
 882         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 883
 884         /* Connect to the account store "account-removed" signal". We
 885            do this here because in the init the singletons are still
 886            not initialized properly */
 887         if (!g_signal_handler_is_connected (modest_runtime_get_account_store (),
 888                                             priv->accounts_handler)) {
 889                 priv->accounts_handler = g_signal_connect (modest_runtime_get_account_store (),
 890                                                            "account-removed",
 891                                                            G_CALLBACK (on_account_removed),
 892                                                            self);
 893         }
 894
 895         /* Return accounts window */
 896         initial_window = MODEST_WINDOW (modest_accounts_window_new ());
 897         modest_window_mgr_register_window (self, initial_window, NULL);
 898
 899         return initial_window;
 900 }
 901
 902
 903 static ModestWindow *
 904 modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self)
 905 {
 906         HildonWindowStack *stack;
 907         stack = hildon_window_stack_get_default ();
 908         return (ModestWindow *) hildon_window_stack_peek (stack);
 909 }
 910
 911 static gint
 912 find_folder_window (gconstpointer a,
 913                     gconstpointer b)
 914 {
 915         return (MODEST_IS_FOLDER_WINDOW (a)) ? 0 : 1;
 916 }
 917
 918 ModestWindow *
 919 modest_hildon2_window_mgr_get_folder_window (ModestHildon2WindowMgr *self)
 920 {
 921         ModestHildon2WindowMgrPrivate *priv;
 922         GList *window;
 923
 924         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 925
 926         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 927
 928         window = g_list_find_custom (priv->window_list,
 929                                      NULL,
 930                                      find_folder_window);
 931
 932         return (window != NULL) ? MODEST_WINDOW (window->data) : NULL;
 933 }
 934
 935 static gboolean
 936 modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self)
 937 {
 938         ModestHildon2WindowMgrPrivate *priv = NULL;
 939
 940         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 941
 942         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 943
 944         return (priv->display_state == OSSO_DISPLAY_ON) ? TRUE : FALSE;
 945 }
 946
 947 static void
 948 osso_display_event_cb (osso_display_state_t state,
 949                        gpointer data)
 950 {
 951         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (data);
 952
 953         priv->display_state = state;
 954
 955         /* Stop blinking if the screen becomes on */
 956         if (priv->display_state == OSSO_DISPLAY_ON)
 957                 modest_platform_remove_new_mail_notifications (TRUE);
 958 }
 959