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 gboolean modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self,
  83                                                                        const gchar *msg_uid,
  84                                                                        ModestWindow **win);
  85 static GList *modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self);
  86 static gboolean modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self);
  87 static gboolean window_can_close (ModestWindow *window);
  88 static gboolean window_has_modals (ModestWindow *window);
  89 static ModestWindow *modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self);
  90 static ModestWindow *modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self);
  91 static gboolean modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self);
  92 static void osso_display_event_cb (osso_display_state_t state,
  93                                    gpointer data);
  94 static void on_account_removed (TnyAccountStore *acc_store,
  95                                 TnyAccount *account,
  96                                 gpointer user_data);
  97
  98 typedef struct _ModestHildon2WindowMgrPrivate ModestHildon2WindowMgrPrivate;
  99 struct _ModestHildon2WindowMgrPrivate {
 100         GList        *window_list;
 101         GMutex       *queue_lock;
 102         GQueue       *modal_windows;
 103
 104         gboolean     fullscreen_mode;
 105
 106         GHashTable   *destroy_handlers;
 107         GHashTable   *viewer_handlers;
 108         GSList       *window_state_uids;
 109
 110         guint        closing_time;
 111
 112         GSList       *modal_handler_uids;
 113         ModestWindow *current_top;
 114
 115         gulong        accounts_handler;
 116
 117         /* Display state */
 118         osso_display_state_t display_state;
 119 };
 120 #define MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 121                                                                                    MODEST_TYPE_HILDON2_WINDOW_MGR, \
 122                                                                                    ModestHildon2WindowMgrPrivate))
 123 /* globals */
 124 static GObjectClass *parent_class = NULL;
 125
 126 GType
 127 modest_hildon2_window_mgr_get_type (void)
 128 {
 129         static GType my_type = 0;
 130         if (!my_type) {
 131                 static const GTypeInfo my_info = {
 132                         sizeof(ModestHildon2WindowMgrClass),
 133                         NULL,           /* base init */
 134                         NULL,           /* base finalize */
 135                         (GClassInitFunc) modest_hildon2_window_mgr_class_init,
 136                         NULL,           /* class finalize */
 137                         NULL,           /* class data */
 138                         sizeof(ModestHildon2WindowMgr),
 139                         1,              /* n_preallocs */
 140                         (GInstanceInitFunc) modest_hildon2_window_mgr_instance_init,
 141                         NULL
 142                 };
 143                 my_type = g_type_register_static (MODEST_TYPE_WINDOW_MGR,
 144                                                   "ModestHildon2WindowMgr",
 145                                                   &my_info, 0);
 146         }
 147         return my_type;
 148 }
 149
 150 static void
 151 modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass)
 152 {
 153         GObjectClass *gobject_class;
 154         ModestWindowMgrClass *mgr_class;
 155
 156         gobject_class = (GObjectClass*) klass;
 157         mgr_class = (ModestWindowMgrClass *) klass;
 158
 159         parent_class            = g_type_class_peek_parent (klass);
 160         gobject_class->finalize = modest_hildon2_window_mgr_finalize;
 161         mgr_class->register_window = modest_hildon2_window_mgr_register_window;
 162         mgr_class->unregister_window = modest_hildon2_window_mgr_unregister_window;
 163         mgr_class->set_fullscreen_mode = modest_hildon2_window_mgr_set_fullscreen_mode;
 164         mgr_class->get_fullscreen_mode = modest_hildon2_window_mgr_get_fullscreen_mode;
 165         mgr_class->show_toolbars = modest_hildon2_window_mgr_show_toolbars;
 166         mgr_class->get_main_window = modest_hildon2_window_mgr_get_main_window;
 167         mgr_class->get_modal = modest_hildon2_window_mgr_get_modal;
 168         mgr_class->set_modal = modest_hildon2_window_mgr_set_modal;
 169         mgr_class->find_registered_header = modest_hildon2_window_mgr_find_registered_header;
 170         mgr_class->find_registered_message_uid = modest_hildon2_window_mgr_find_registered_message_uid;
 171         mgr_class->get_window_list = modest_hildon2_window_mgr_get_window_list;
 172         mgr_class->close_all_windows = modest_hildon2_window_mgr_close_all_windows;
 173         mgr_class->show_initial_window = modest_hildon2_window_mgr_show_initial_window;
 174         mgr_class->get_current_top = modest_hildon2_window_mgr_get_current_top;
 175         mgr_class->screen_is_on = modest_hildon2_window_mgr_screen_is_on;
 176
 177         g_type_class_add_private (gobject_class, sizeof(ModestHildon2WindowMgrPrivate));
 178
 179 }
 180
 181 static void
 182 modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj)
 183 {
 184         ModestHildon2WindowMgrPrivate *priv;
 185
 186         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
 187         priv->window_list = NULL;
 188         priv->fullscreen_mode = FALSE;
 189         priv->window_state_uids = NULL;
 190
 191         priv->modal_windows = g_queue_new ();
 192         priv->queue_lock = g_mutex_new ();
 193
 194         /* Could not initialize it from gconf, singletons are not
 195            ready yet */
 196         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 197         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 198
 199         priv->closing_time = 0;
 200
 201         priv->modal_handler_uids = NULL;
 202         priv->display_state = OSSO_DISPLAY_ON;
 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 gint
 324 compare_headers (ModestWindow *win,
 325                  TnyHeader *header)
 326 {
 327         TnyHeader *my_header;
 328         gint result = 1;
 329
 330         if (!MODEST_IS_MSG_VIEW_WINDOW (win))
 331                 return 1;
 332
 333         /* Get message uid from msg window */
 334         my_header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 335         if (my_header) {
 336                 if (my_header == header)
 337                         result = 0;
 338                 g_object_unref (my_header);
 339         }
 340         return result;
 341 }
 342
 343
 344 static gboolean
 345 modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 346                                                   ModestWindow **win)
 347 {
 348         ModestHildon2WindowMgrPrivate *priv = NULL;
 349         gchar* uid = NULL;
 350         gboolean has_header, has_window = FALSE;
 351         GList *item = NULL;
 352
 353         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 354         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 355
 356         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 357
 358         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_header (self, header, win);
 359
 360         uid = modest_tny_folder_get_header_unique_id (header);
 361
 362         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 363         if (item) {
 364                 has_window = TRUE;
 365                 if (win) {
 366                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 367                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 368                                 g_debug ("not a valid window!");
 369                         else {
 370                                 g_debug ("found a window");
 371                                 *win = MODEST_WINDOW (item->data);
 372                         }
 373                 }
 374         }
 375         g_free (uid);
 376
 377         return has_header || has_window;
 378 }
 379
 380 static gboolean
 381 modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self, const gchar *msg_uid,
 382                                                        ModestWindow **win)
 383 {
 384         ModestHildon2WindowMgrPrivate *priv = NULL;
 385         gboolean has_header, has_window = FALSE;
 386         GList *item = NULL;
 387
 388         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 389         g_return_val_if_fail (msg_uid && msg_uid[0] != '\0', FALSE);
 390
 391         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 392
 393         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_message_uid (self, msg_uid, win);
 394
 395         item = g_list_find_custom (priv->window_list, msg_uid, (GCompareFunc) compare_msguids);
 396         if (item) {
 397                 has_window = TRUE;
 398                 if (win) {
 399                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 400                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 401                                 g_debug ("not a valid window!");
 402                         else {
 403                                 g_debug ("found a window");
 404                                 *win = MODEST_WINDOW (item->data);
 405                         }
 406                 }
 407         }
 408
 409         return has_header || has_window;
 410 }
 411
 412 static GList *
 413 modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self)
 414 {
 415         ModestHildon2WindowMgrPrivate *priv;
 416
 417         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 418         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 419
 420         return g_list_copy (priv->window_list);
 421 }
 422
 423 static gboolean
 424 modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
 425                                            ModestWindow *window,
 426                                            ModestWindow *parent)
 427 {
 428         GList *win;
 429         ModestHildon2WindowMgrPrivate *priv;
 430         gint *handler_id;
 431         HildonWindowStack *stack;
 432         gboolean nested_msg = FALSE;
 433         ModestWindow *current_top;
 434
 435         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 436         g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 437
 438         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 439
 440         stack = hildon_window_stack_get_default ();
 441         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 442
 443         win = g_list_find (priv->window_list, window);
 444         if (win) {
 445                 /* this is for the case we want to register the window
 446                    and it was already registered */
 447                 gtk_window_present (GTK_WINDOW (window));
 448                 return FALSE;
 449         }
 450
 451         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 452                 gchar *uid;
 453                 TnyHeader *header;
 454                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (window));
 455
 456                 if (header) {
 457                         uid = modest_tny_folder_get_header_unique_id (header);
 458
 459                         /* Embedded messages do not have uid */
 460                         if (uid) {
 461                                 if (g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids)) {
 462                                         g_debug ("%s found another view window showing the same header", __FUNCTION__);
 463                                         g_free (uid);
 464                                         g_object_unref (header);
 465                                         return FALSE;
 466                                 }
 467                                 g_free (uid);
 468                         } else {
 469                                 if (g_list_find_custom (priv->window_list, header, (GCompareFunc) compare_headers)) {
 470                                         g_debug ("%s found another view window showing the same header", __FUNCTION__);
 471                                         g_object_unref (header);
 472                                         return FALSE;
 473                                 }
 474                         }
 475                         g_object_unref (header);
 476                 }
 477         }
 478
 479         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_FOLDER_WINDOW (window)) {
 480                 gtk_window_present (GTK_WINDOW (window));
 481                 return FALSE;
 482         }
 483
 484         if (MODEST_IS_MAILBOXES_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 485                 gtk_window_present (GTK_WINDOW (window));
 486                 return FALSE;
 487         }
 488
 489         /* Mailboxes window can not replace folder windows */
 490         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 491                 gtk_window_present (GTK_WINDOW (current_top));
 492                 return FALSE;
 493         }
 494
 495         /* Trying to open a folders window and a mailboxes window at
 496            the same time from the accounts window is not allowed */
 497         if (MODEST_IS_MAILBOXES_WINDOW (current_top) &&
 498             MODEST_IS_FOLDER_WINDOW (window) &&
 499             MODEST_IS_ACCOUNTS_WINDOW (parent)) {
 500                 gtk_window_present (GTK_WINDOW (window));
 501                 return FALSE;
 502         }
 503
 504         if (MODEST_IS_HEADER_WINDOW (current_top) && MODEST_IS_HEADER_WINDOW (window)) {
 505                 g_debug ("Trying to register a second header window is not allowed");
 506                 gtk_window_present (GTK_WINDOW (current_top));
 507                 return FALSE;
 508         }
 509
 510         if (!MODEST_WINDOW_MGR_CLASS (parent_class)->register_window (self, window, parent))
 511                 goto fail;
 512
 513         /* Add to list. Keep a reference to the window */
 514         g_object_ref (window);
 515         priv->window_list = g_list_prepend (priv->window_list, window);
 516
 517         nested_msg = MODEST_IS_MSG_VIEW_WINDOW (window) &&
 518                 MODEST_IS_MSG_VIEW_WINDOW (parent);
 519
 520         /* Close views if they're being shown. Nevertheless we must
 521            allow nested messages */
 522         if (!nested_msg &&
 523             (MODEST_IS_MSG_EDIT_WINDOW (current_top) ||
 524              MODEST_IS_MSG_VIEW_WINDOW (current_top))) {
 525                 gboolean retval;
 526
 527                 /* If the current view has modal dialogs then
 528                    we fail to register the new view */
 529                 if ((current_top != NULL) &&
 530                     window_has_modals (MODEST_WINDOW (current_top))) {
 531                         /* Window on top but it has opened dialogs */
 532                         goto fail;
 533                 }
 534
 535                 /* Close the current view */
 536                 g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
 537                 if (retval == TRUE) {
 538                         /* Cancelled closing top window, then we fail to register */
 539                         goto fail;
 540                 }
 541         }
 542
 543         /* Listen to object destruction */
 544         handler_id = g_malloc0 (sizeof (gint));
 545         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 546         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 547
 548         /* Show toolbar always */
 549         modest_window_show_toolbar (window, TRUE);
 550
 551         return TRUE;
 552 fail:
 553         /* Add to list. Keep a reference to the window */
 554         priv->window_list = g_list_remove (priv->window_list, window);
 555         g_object_unref (window);
 556         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 557         if (current_top)
 558                 gtk_window_present (GTK_WINDOW (current_top));
 559         return FALSE;
 560 }
 561
 562 static void
 563 cancel_window_operations (ModestWindow *window)
 564 {
 565         GSList* pending_ops = NULL;
 566
 567         /* cancel open and receive operations */
 568         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 569                                                                  G_OBJECT (window));
 570         while (pending_ops != NULL) {
 571                 ModestMailOperationTypeOperation type;
 572                 GSList* tmp_list = NULL;
 573
 574                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 575                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 576                         modest_mail_operation_cancel (pending_ops->data);
 577                 }
 578                 g_object_unref (G_OBJECT (pending_ops->data));
 579                 tmp_list = pending_ops;
 580                 pending_ops = g_slist_next (pending_ops);
 581                 g_slist_free_1 (tmp_list);
 582         }
 583 }
 584
 585 static gboolean
 586 window_has_modals (ModestWindow *window)
 587 {
 588         GList *toplevels;
 589         GList *node;
 590         gboolean retvalue = FALSE;
 591
 592         /* First we fetch all toplevels */
 593         toplevels = gtk_window_list_toplevels ();
 594         for (node = toplevels; node != NULL; node = g_list_next (node)) {
 595                 if (GTK_IS_WINDOW (node->data) &&
 596                     gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window) &&
 597                     GTK_WIDGET_VISIBLE (node->data)) {
 598                         retvalue = TRUE;
 599                         break;
 600                 }
 601         }
 602         g_list_free (toplevels);
 603         return retvalue;
 604 }
 605
 606 static gboolean
 607 window_can_close (ModestWindow *window)
 608 {
 609         /* An editor can be always closed no matter the dialogs it has
 610          * on top. */
 611         if (MODEST_IS_MSG_EDIT_WINDOW (window))
 612                 return TRUE;
 613
 614         return !window_has_modals (window);
 615 }
 616
 617 static gboolean
 618 on_window_destroy (ModestWindow *window,
 619                    GdkEvent *event,
 620                    ModestHildon2WindowMgr *self)
 621 {
 622         gboolean no_propagate = FALSE;
 623
 624         if (!window_can_close (window))
 625                 return TRUE;
 626
 627         if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 628                 gboolean sent = FALSE;
 629                 sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 630                 /* Save currently edited message to Drafts if it was not sent */
 631                 if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 632                         ModestMsgEditWindow *edit_window;
 633                         MsgData *data;
 634
 635                         edit_window = MODEST_MSG_EDIT_WINDOW (window);
 636                         data = modest_msg_edit_window_get_msg_data (edit_window);
 637
 638                         if (data) {
 639                                 gint parts_count;
 640                                 guint64 parts_size, available_size, expected_size;
 641
 642                                 available_size = modest_utils_get_available_space (NULL);
 643                                 modest_msg_edit_window_get_parts_size (edit_window, &parts_count, &parts_size);
 644                                 expected_size = modest_tny_msg_estimate_size (data->plain_body,
 645                                                                               data->html_body,
 646                                                                               parts_count,
 647                                                                               parts_size);
 648                                 modest_msg_edit_window_free_msg_data (edit_window, data);
 649                                 data = NULL;
 650
 651                                 /* If there is not enough space
 652                                    available for saving the message
 653                                    then show an error and close the
 654                                    window without saving */
 655                                 if (expected_size >= available_size) {
 656                                         modest_platform_run_information_dialog (GTK_WINDOW (edit_window),
 657                                                                                 _("mail_in_ui_save_error"),
 658                                                                                 FALSE);
 659                                 } else {
 660                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 661                                                 return TRUE;
 662                                 }
 663                         } else {
 664                                 g_warning ("Edit window without message data. This is probably a bug");
 665                         }
 666                 }
 667         }
 668
 669         /* Unregister window */
 670         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
 671         no_propagate = FALSE;
 672
 673         return no_propagate;
 674 }
 675
 676 static void
 677 modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
 678                                              ModestWindow *window)
 679 {
 680         GList *win;
 681         ModestHildon2WindowMgrPrivate *priv;
 682         gulong *tmp, handler_id;
 683         guint num_windows;
 684
 685         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 686         g_return_if_fail (MODEST_IS_WINDOW (window));
 687
 688         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 689
 690         win = g_list_find (priv->window_list, window);
 691         if (!win) {
 692                 g_warning ("Trying to unregister a window that has not being registered yet");
 693                 return;
 694         }
 695
 696         /* Remove the viewer window handler from the hash table. The
 697            HashTable could not exist if the main window was closed
 698            when there were other windows remaining */
 699         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 700                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 701                 /* If the viewer was created without a main window
 702                    (for example when opening a message through D-Bus
 703                    the viewer handlers was not registered */
 704                 if (tmp) {
 705                         g_signal_handler_disconnect (window, *tmp);
 706                         g_hash_table_remove (priv->viewer_handlers, window);
 707                 }
 708         }
 709
 710         /* Remove from list & hash table */
 711         priv->window_list = g_list_remove_link (priv->window_list, win);
 712         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 713         handler_id = *tmp;
 714
 715         g_hash_table_remove (priv->destroy_handlers, window);
 716
 717         /* cancel open and receive operations */
 718         cancel_window_operations (window);
 719
 720         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 721         if (priv->window_state_uids) {
 722                 priv->window_state_uids =
 723                         modest_signal_mgr_disconnect (priv->window_state_uids,
 724                                                       G_OBJECT (window),
 725                                                       "notify::is-topmost");
 726         }
 727
 728         /* Disconnect the "delete-event" handler, we won't need it anymore */
 729         g_signal_handler_disconnect (window, handler_id);
 730
 731         /* Destroy the window */
 732         g_object_unref (win->data);
 733         g_list_free (win);
 734
 735         MODEST_WINDOW_MGR_CLASS (parent_class)->unregister_window (self, window);
 736
 737         /* We have to get the number of windows here in order not to
 738            emit the signal too many times */
 739         num_windows = modest_window_mgr_get_num_windows (self);
 740
 741         /* If there are no more windows registered emit the signal */
 742         if (num_windows == 0)
 743                 g_signal_emit_by_name (self, "window-list-empty");
 744 }
 745
 746
 747 static void
 748 modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 749                                                gboolean on)
 750 {
 751         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 752
 753         return;
 754 }
 755
 756 static gboolean
 757 modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 758 {
 759         return FALSE;
 760 }
 761
 762 static void
 763 modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
 764                                          GType window_type,
 765                                          gboolean show_toolbars,
 766                                          gboolean fullscreen)
 767 {
 768         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 769
 770         return;
 771 }
 772
 773 static ModestWindow*
 774 modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
 775 {
 776         ModestHildon2WindowMgrPrivate *priv;
 777         ModestWindow *result;
 778
 779         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 780         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 781
 782         /* TODO: make this return NULL always */
 783
 784         result = MODEST_WINDOW_MGR_CLASS (parent_class)->get_main_window (self, FALSE);
 785         /* create the main window, if it hasn't been created yet */
 786         if (!result && show) {
 787                 /* modest_window_mgr_register_window will set priv->main_window */
 788                 result = modest_main_window_new ();
 789                 /* We have to remove all other windows */
 790                 if (!modest_window_mgr_close_all_windows (self)) {
 791                         gtk_widget_destroy (GTK_WIDGET (result));
 792                         return NULL;
 793                 }
 794                 if (!modest_window_mgr_register_window (self, result, NULL)) {
 795                         gtk_widget_destroy (GTK_WIDGET (result));
 796                         return NULL;
 797                 }
 798                 MODEST_DEBUG_BLOCK(
 799                         g_debug ("%s: created main window: %p\n", __FUNCTION__, result);
 800                 );
 801         }
 802         if (show) {
 803                 gtk_widget_show_all (GTK_WIDGET (result));
 804                 gtk_window_present (GTK_WINDOW (result));
 805         }
 806
 807         return result;
 808 }
 809
 810
 811 static GtkWindow *
 812 modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self)
 813 {
 814         ModestHildon2WindowMgrPrivate *priv;
 815         GList *toplevel_list;
 816         GtkWindow *toplevel;
 817
 818         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 819         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 820
 821         toplevel = NULL;
 822         toplevel_list = gtk_window_list_toplevels ();
 823         while (toplevel_list) {
 824                 if (gtk_window_is_active (toplevel_list->data) &&
 825                     gtk_window_get_modal (toplevel_list->data)) {
 826                         toplevel = (GtkWindow *) toplevel_list->data;
 827                         break;
 828                 }
 829                 toplevel_list = g_list_next (toplevel_list);
 830         }
 831
 832         return toplevel;
 833 }
 834
 835
 836 static void
 837 modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
 838                                      GtkWindow *window,
 839                                      GtkWindow *parent)
 840 {
 841         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 842         g_return_if_fail (GTK_IS_WINDOW (window));
 843
 844         gtk_window_set_modal (window, TRUE);
 845         gtk_window_set_transient_for (window, parent);
 846         gtk_window_set_destroy_with_parent (window, TRUE);
 847 }
 848
 849 static void
 850 on_account_removed (TnyAccountStore *acc_store,
 851                     TnyAccount *account,
 852                     gpointer user_data)
 853 {
 854         HildonWindowStack *stack;
 855         ModestWindow *current_top;
 856         gboolean has_accounts;
 857
 858         /* Ignore transport account removals */
 859         if (TNY_IS_TRANSPORT_ACCOUNT (account))
 860                 return;
 861
 862         stack = hildon_window_stack_get_default ();
 863         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 864         has_accounts = modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
 865
 866         /* if we're showing the header view of the currently deleted
 867            account, or the outbox and we deleted the last account,
 868            then close the window */
 869         if (current_top && MODEST_IS_HEADER_WINDOW (current_top)) {
 870                 ModestHeaderView *header_view;
 871                 TnyFolder *folder;
 872                 gboolean deleted = FALSE;
 873
 874                 header_view = modest_header_window_get_header_view (MODEST_HEADER_WINDOW (current_top));
 875                 folder = modest_header_view_get_folder (header_view);
 876                 if (folder) {
 877                         gboolean retval;
 878
 879                         /* Close if it's my account */
 880                         if (!TNY_IS_MERGE_FOLDER (folder)) {
 881                                 TnyAccount *my_account;
 882
 883                                 my_account = tny_folder_get_account (folder);
 884                                 if (my_account) {
 885                                         if (my_account == account) {
 886                                                 g_signal_emit_by_name (G_OBJECT (current_top),
 887                                                                        "delete-event",
 888                                                                        NULL, &retval);
 889                                                 deleted = TRUE;
 890                                         }
 891                                         g_object_unref (my_account);
 892                                 }
 893                         }
 894
 895                         /* Close if viewing outbox and no account left */
 896                         if (tny_folder_get_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 897                                 if (!has_accounts) {
 898                                         g_signal_emit_by_name (G_OBJECT (current_top),
 899                                                                "delete-event",
 900                                                                NULL, &retval);
 901                                         deleted = TRUE;
 902                                 }
 903                         }
 904                         g_object_unref (folder);
 905
 906                         if (deleted) {
 907                                 current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 908                         }
 909                 }
 910         }
 911 }
 912
 913 static ModestWindow *
 914 modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self)
 915 {
 916         ModestWindow *initial_window = NULL;
 917         ModestHildon2WindowMgrPrivate *priv;
 918
 919         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 920
 921         /* Connect to the account store "account-removed" signal". We
 922            do this here because in the init the singletons are still
 923            not initialized properly */
 924         if (!g_signal_handler_is_connected (modest_runtime_get_account_store (),
 925                                             priv->accounts_handler)) {
 926                 priv->accounts_handler = g_signal_connect (modest_runtime_get_account_store (),
 927                                                            "account-removed",
 928                                                            G_CALLBACK (on_account_removed),
 929                                                            self);
 930         }
 931
 932         /* Return accounts window */
 933         initial_window = MODEST_WINDOW (modest_accounts_window_new ());
 934         modest_window_mgr_register_window (self, initial_window, NULL);
 935
 936         return initial_window;
 937 }
 938
 939
 940 static ModestWindow *
 941 modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self)
 942 {
 943         HildonWindowStack *stack;
 944         stack = hildon_window_stack_get_default ();
 945         return (ModestWindow *) hildon_window_stack_peek (stack);
 946 }
 947
 948 static gint
 949 find_folder_window (gconstpointer a,
 950                     gconstpointer b)
 951 {
 952         return (MODEST_IS_FOLDER_WINDOW (a)) ? 0 : 1;
 953 }
 954
 955 ModestWindow *
 956 modest_hildon2_window_mgr_get_folder_window (ModestHildon2WindowMgr *self)
 957 {
 958         ModestHildon2WindowMgrPrivate *priv;
 959         GList *window;
 960
 961         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 962
 963         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 964
 965         window = g_list_find_custom (priv->window_list,
 966                                      NULL,
 967                                      find_folder_window);
 968
 969         return (window != NULL) ? MODEST_WINDOW (window->data) : NULL;
 970 }
 971
 972 static gboolean
 973 modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self)
 974 {
 975         ModestHildon2WindowMgrPrivate *priv = NULL;
 976
 977         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 978
 979         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 980
 981         return (priv->display_state == OSSO_DISPLAY_ON) ? TRUE : FALSE;
 982 }
 983
 984 static void
 985 osso_display_event_cb (osso_display_state_t state,
 986                        gpointer data)
 987 {
 988         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (data);
 989
 990         priv->display_state = state;
 991
 992         /* Stop blinking if the screen becomes on */
 993         if (priv->display_state == OSSO_DISPLAY_ON)
 994                 modest_platform_remove_new_mail_notifications (TRUE);
 995 }
 996