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