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