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

   1 /* Copyright (c) 2006,2007 Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <string.h>
  31 #include "modest-window-mgr.h"
  32 #include "modest-runtime.h"
  33 #include "modest-tny-folder.h"
  34 #include "modest-ui-actions.h"
  35 #include "modest-platform.h"
  36 #include "widgets/modest-main-window.h"
  37 #include "widgets/modest-msg-edit-window.h"
  38 #include "widgets/modest-msg-view-window.h"
  39
  40
  41 /* 'private'/'protected' functions */
  42 static void modest_window_mgr_class_init (ModestWindowMgrClass *klass);
  43 static void modest_window_mgr_init       (ModestWindowMgr *obj);
  44 static void modest_window_mgr_finalize   (GObject *obj);
  45
  46 static gboolean on_window_destroy        (ModestWindow *window,
  47                                           GdkEvent *event,
  48                                           ModestWindowMgr *self);
  49
  50 static gboolean on_modal_window_close    (GtkWidget *widget,
  51                                           GdkEvent *event,
  52                                           gpointer user_data);
  53
  54 static void     on_modal_dialog_close    (GtkDialog *dialog,
  55                                           gint arg1,
  56                                           gpointer user_data);
  57
  58 static const gchar* get_show_toolbar_key (GType window_type,
  59                                           gboolean fullscreen);
  60
  61 /* list my signals  */
  62 enum {
  63         WINDOW_LIST_EMPTY_SIGNAL,
  64         NUM_SIGNALS
  65 };
  66
  67 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
  68 struct _ModestWindowMgrPrivate {
  69         GList        *window_list;
  70
  71         ModestWindow *main_window;
  72
  73         GMutex       *queue_lock;
  74         GQueue       *modal_windows;
  75
  76         gboolean     fullscreen_mode;
  77
  78         GSList       *windows_that_prevent_hibernation;
  79         GSList       *preregistered_uids;
  80         GHashTable   *destroy_handlers;
  81         GHashTable   *viewer_handlers;
  82
  83         guint        closing_time;
  84
  85         GSList       *modal_handler_uids;
  86 };
  87 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  88                                                MODEST_TYPE_WINDOW_MGR, \
  89                                                ModestWindowMgrPrivate))
  90 /* globals */
  91 static GObjectClass *parent_class = NULL;
  92
  93 /* uncomment the following if you have defined any signals */
  94 static guint signals[NUM_SIGNALS] = {0};
  95
  96 GType
  97 modest_window_mgr_get_type (void)
  98 {
  99         static GType my_type = 0;
 100         if (!my_type) {
 101                 static const GTypeInfo my_info = {
 102                         sizeof(ModestWindowMgrClass),
 103                         NULL,           /* base init */
 104                         NULL,           /* base finalize */
 105                         (GClassInitFunc) modest_window_mgr_class_init,
 106                         NULL,           /* class finalize */
 107                         NULL,           /* class data */
 108                         sizeof(ModestWindowMgr),
 109                         1,              /* n_preallocs */
 110                         (GInstanceInitFunc) modest_window_mgr_init,
 111                         NULL
 112                 };
 113                 my_type = g_type_register_static (G_TYPE_OBJECT,
 114                                                   "ModestWindowMgr",
 115                                                   &my_info, 0);
 116         }
 117         return my_type;
 118 }
 119
 120 static void
 121 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 122 {
 123         GObjectClass *gobject_class;
 124         gobject_class = (GObjectClass*) klass;
 125
 126         parent_class            = g_type_class_peek_parent (klass);
 127         gobject_class->finalize = modest_window_mgr_finalize;
 128
 129         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 130
 131
 132         /**
 133          * ModestWindowMgr::window-list-empty
 134          * @self: the #ModestWindowMgr that emits the signal
 135          * @user_data: user data set when the signal handler was connected
 136          *
 137          * Issued whenever the window list becomes empty
 138          */
 139         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 140                 g_signal_new ("window-list-empty",
 141                               G_TYPE_FROM_CLASS (gobject_class),
 142                               G_SIGNAL_RUN_FIRST,
 143                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 144                               NULL, NULL,
 145                               g_cclosure_marshal_VOID__VOID,
 146                               G_TYPE_NONE, 0);
 147 }
 148
 149 static void
 150 modest_window_mgr_init (ModestWindowMgr *obj)
 151 {
 152         ModestWindowMgrPrivate *priv;
 153
 154         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 155         priv->window_list = NULL;
 156         priv->main_window = NULL;
 157         priv->fullscreen_mode = FALSE;
 158
 159         priv->modal_windows = g_queue_new ();
 160         priv->queue_lock = g_mutex_new ();
 161
 162         priv->preregistered_uids = NULL;
 163
 164         /* Could not initialize it from gconf, singletons are not
 165            ready yet */
 166         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 167         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 168
 169         priv->closing_time = 0;
 170
 171         priv->modal_handler_uids = NULL;
 172 }
 173
 174 static void
 175 modest_window_mgr_finalize (GObject *obj)
 176 {
 177         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 178
 179         if (priv->window_list) {
 180                 GList *iter = priv->window_list;
 181                 /* unregister pending windows */
 182                 while (iter) {
 183                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj),
 184                                                              MODEST_WINDOW (iter->data));
 185                         iter = g_list_next (iter);
 186                 }
 187                 g_list_free (priv->window_list);
 188                 priv->window_list = NULL;
 189         }
 190
 191         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 192         g_slist_free (priv->preregistered_uids);
 193
 194
 195         /* Free the hash table with the handlers */
 196         if (priv->destroy_handlers) {
 197                 g_hash_table_destroy (priv->destroy_handlers);
 198                 priv->destroy_handlers = NULL;
 199         }
 200
 201         if (priv->viewer_handlers) {
 202                 g_hash_table_destroy (priv->viewer_handlers);
 203                 priv->viewer_handlers = NULL;
 204         }
 205
 206         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 207
 208         if (priv->modal_windows) {
 209                 g_mutex_lock (priv->queue_lock);
 210                 g_queue_free (priv->modal_windows);
 211                 priv->modal_windows = NULL;
 212                 g_mutex_unlock (priv->queue_lock);
 213         }
 214         g_mutex_free (priv->queue_lock);
 215
 216         /* Do not unref priv->main_window because it does not hold a
 217            new reference */
 218
 219
 220         G_OBJECT_CLASS(parent_class)->finalize (obj);
 221 }
 222
 223 ModestWindowMgr*
 224 modest_window_mgr_new (void)
 225 {
 226         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 227 }
 228
 229
 230
 231
 232 /* do we have uid? */
 233 static gboolean
 234 has_uid (GSList *list, const gchar *uid)
 235 {
 236         GSList *cursor = list;
 237
 238         if (!uid)
 239                 return FALSE;
 240
 241         while (cursor) {
 242                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 243                         return TRUE;
 244                 cursor = g_slist_next (cursor);
 245         }
 246         return FALSE;
 247 }
 248
 249
 250 /* remove all from the list have have uid = uid */
 251 static GSList*
 252 remove_uid (GSList *list, const gchar *uid)
 253 {
 254         GSList *cursor = list, *start = list;
 255
 256         if (!uid)
 257                 return FALSE;
 258
 259         while (cursor) {
 260                 GSList *next = g_slist_next (cursor);
 261                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 262                         g_free (cursor->data);
 263                         start = g_slist_delete_link (start, cursor);
 264                 }
 265                 cursor = next;
 266         }
 267         return start;
 268 }
 269
 270
 271 static GSList *
 272 append_uid (GSList *list, const gchar *uid)
 273 {
 274         return g_slist_append (list, g_strdup(uid));
 275 }
 276
 277
 278
 279 void
 280 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 281 {
 282         ModestWindowMgrPrivate *priv;
 283         gchar* uid;
 284
 285         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 286         g_return_if_fail (TNY_IS_HEADER(header));
 287
 288         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 289         uid = modest_tny_folder_get_header_unique_id (header);
 290
 291         if (uid == NULL)
 292                 uid = g_strdup (alt_uid);
 293
 294         if (!has_uid (priv->preregistered_uids, uid)) {
 295                 g_debug ("registering new uid %s", uid);
 296                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 297         } else
 298                 g_debug ("already had uid %s", uid);
 299
 300         g_free (uid);
 301 }
 302
 303 void
 304 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 305 {
 306         ModestWindowMgrPrivate *priv;
 307         gchar* uid;
 308
 309         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 310         g_return_if_fail (TNY_IS_HEADER(header));
 311
 312         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 313         uid = modest_tny_folder_get_header_unique_id (header);
 314
 315         if (!has_uid (priv->preregistered_uids, uid)) {
 316                 g_debug ("trying to unregister non-existing uid %s", uid);
 317                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 318         } else
 319                 g_debug ("unregistering uid %s", uid);
 320
 321         if (has_uid (priv->preregistered_uids, uid)) {
 322                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 323                 if (has_uid (priv->preregistered_uids, uid))
 324                         g_debug ("BUG: uid %s NOT removed", uid);
 325                 else
 326                         g_debug ("uid %s removed", uid);
 327         }
 328
 329         g_free (uid);
 330 }
 331
 332
 333 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 334
 335 void
 336 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 337 {
 338         /* we don't need 'self', but for API consistency... */
 339         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 340
 341         g_return_if_fail (win && GTK_IS_WINDOW(win));
 342         g_return_if_fail (help_id);
 343
 344         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 345                                 g_strdup(help_id), g_free);
 346 }
 347
 348
 349 const gchar*
 350 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 351 {
 352         const gchar* help_id = NULL;
 353
 354         /* we don't need 'self', but for API consistency... */
 355         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 356
 357         g_return_val_if_fail (win, NULL);
 358         g_return_val_if_fail (GTK_IS_WINDOW(win), NULL);
 359
 360         if (MODEST_IS_MAIN_WINDOW (win)) {
 361                 GtkWidget *folder_view;
 362                 TnyFolderStore *folder_store;
 363
 364                 /* Get selected folder */
 365                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 366                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 367                 folder_store = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 368
 369                 /* Switch help_id */
 370                 if (folder_store && TNY_IS_FOLDER (folder_store)) {
 371                         help_id = modest_tny_folder_get_help_id (TNY_FOLDER (folder_store));
 372                         if (!help_id)
 373                                 g_warning ("%s: BUG: did not get a valid help_id", __FUNCTION__);
 374                 }
 375                 if (folder_store)
 376                         g_object_unref (folder_store);
 377         }
 378
 379         if (!help_id)
 380                 help_id = g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 381
 382         return help_id;
 383 }
 384
 385 static gint
 386 compare_msguids (ModestWindow *win,
 387                  const gchar *uid)
 388 {
 389         const gchar *msg_uid;
 390
 391         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 392                 return 1;
 393
 394         /* Get message uid from msg window */
 395         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 396                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 397                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 398                         return 0;
 399         } else {
 400                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 401         }
 402
 403         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 404                 return 0;
 405         else
 406                 return 1;
 407 }
 408
 409 void
 410 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 411 {
 412         ModestWindowMgrPrivate *priv = NULL;
 413         GList *wins = NULL;
 414         gboolean ret_value = FALSE;
 415
 416         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 417         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 418
 419         /* delete-event handler already removes window_list item, */
 420         /* so no next its required on this loop  */
 421         wins = priv->window_list;
 422         while (wins) {
 423                 g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 424
 425                 wins = priv->window_list;
 426         }
 427 }
 428
 429
 430 gboolean
 431 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 432                                           ModestWindow **win)
 433 {
 434         ModestWindowMgrPrivate *priv = NULL;
 435         gchar* uid = NULL;
 436         gboolean has_header, has_window = FALSE;
 437         GList *item = NULL;
 438
 439         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 440         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 441
 442         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 443
 444         uid = modest_tny_folder_get_header_unique_id (header);
 445
 446         if (win)
 447                 *win = NULL;
 448
 449         has_header = has_uid (priv->preregistered_uids, uid);
 450
 451         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 452         if (item) {
 453                 has_window = TRUE;
 454                 if (win) {
 455                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 456                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 457                                 g_debug ("not a valid window!");
 458                         else {
 459                                 g_debug ("found a window");
 460                                 *win = MODEST_WINDOW (item->data);
 461                         }
 462                 }
 463         }
 464         g_free (uid);
 465
 466         return has_header || has_window;
 467 }
 468
 469 static const gchar *
 470 get_show_toolbar_key (GType window_type,
 471                       gboolean fullscreen)
 472 {
 473         const gchar *key = NULL;
 474
 475         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 476                 key = (fullscreen) ?
 477                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 478                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 479         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 480                 key = (fullscreen) ?
 481                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 482                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 483         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 484                 key = (fullscreen) ?
 485                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 486                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 487         else
 488                 g_return_val_if_reached (NULL);
 489
 490         return key;
 491 }
 492
 493 void
 494 modest_window_mgr_register_window (ModestWindowMgr *self,
 495                                    ModestWindow *window)
 496 {
 497         GList *win;
 498         ModestWindowMgrPrivate *priv;
 499         gint *handler_id;
 500         const gchar *key;
 501
 502         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 503         g_return_if_fail (GTK_IS_WINDOW (window));
 504
 505         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 506
 507         win = g_list_find (priv->window_list, window);
 508         if (win) {
 509                 g_warning ("%s: trying to re-register a window",
 510                            __FUNCTION__);
 511                 return;
 512         }
 513
 514         /* Check that it's not a second main window */
 515         if (MODEST_IS_MAIN_WINDOW (window)) {
 516                 if (priv->main_window) {
 517                         g_warning ("%s: trying to register a second main window",
 518                                    __FUNCTION__);
 519                         return;
 520                 } else {
 521                         priv->main_window = window;
 522                 }
 523         }
 524
 525         /* remove from the list of pre-registered uids */
 526         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 527                 const gchar *uid = modest_msg_view_window_get_message_uid
 528                         (MODEST_MSG_VIEW_WINDOW (window));
 529
 530                 if (!has_uid (priv->preregistered_uids, uid))
 531                         g_debug ("weird: no uid for window (%s)", uid);
 532
 533                 g_debug ("registering window for %s", uid ? uid : "<none>");
 534
 535                 priv->preregistered_uids =
 536                         remove_uid (priv->preregistered_uids,
 537                                     modest_msg_view_window_get_message_uid
 538                                     (MODEST_MSG_VIEW_WINDOW (window)));
 539         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 540                 const gchar *uid = modest_msg_edit_window_get_message_uid
 541                         (MODEST_MSG_EDIT_WINDOW (window));
 542
 543                 g_debug ("registering window for %s", uid);
 544
 545                 priv->preregistered_uids =
 546                         remove_uid (priv->preregistered_uids,
 547                                     modest_msg_edit_window_get_message_uid
 548                                     (MODEST_MSG_EDIT_WINDOW (window)));
 549         }
 550
 551         /* Add to list. Keep a reference to the window */
 552         g_object_ref (window);
 553         priv->window_list = g_list_prepend (priv->window_list, window);
 554
 555         /* Listen to object destruction */
 556         handler_id = g_malloc0 (sizeof (gint));
 557         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 558         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 559
 560         /* If there is a msg view window, let the main window listen the msg-changed signal */
 561         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 562                 gulong *handler;
 563                 handler = g_malloc0 (sizeof (gulong));
 564                 *handler = g_signal_connect (window, "msg-changed",
 565                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 566                                              priv->main_window);
 567                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 568         }
 569
 570         /* Put into fullscreen if needed */
 571         if (priv->fullscreen_mode)
 572                 gtk_window_fullscreen (GTK_WINDOW (window));
 573
 574         /* Show/hide toolbar & fullscreen */
 575         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 576         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 577 }
 578
 579 static gboolean
 580 on_window_destroy (ModestWindow *window,
 581                    GdkEvent *event,
 582                    ModestWindowMgr *self)
 583 {
 584         gint dialog_response = GTK_RESPONSE_NONE;
 585
 586         /* Specific stuff first */
 587         if (MODEST_IS_MAIN_WINDOW (window)) {
 588                 ModestWindowMgrPrivate *priv;
 589                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 590
 591                 /* If more than one window already opened */
 592                 if (g_list_length (priv->window_list) > 1) {
 593
 594                         /* Create the confirmation dialog MSG-NOT308 */
 595                         dialog_response = modest_platform_run_confirmation_dialog (
 596                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 597
 598                         /* If the user wants to close all the windows */
 599                         if ((dialog_response == GTK_RESPONSE_OK)
 600                                         || (dialog_response == GTK_RESPONSE_ACCEPT)
 601                                         || (dialog_response == GTK_RESPONSE_YES))
 602                                 {
 603                                         GList *iter = priv->window_list;
 604                                         do {
 605                                                 if (iter->data != window) {
 606                                                         GList *tmp = iter->next;
 607                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 608                                                                         event,
 609                                                                         self);
 610                                                         iter = tmp;
 611                                                 } else {
 612                                                         iter = g_list_next (iter);
 613                                                 }
 614                                         } while (iter);
 615                                 }
 616                         else
 617                                 {
 618                                         return TRUE;
 619                                 }
 620                 }
 621         }
 622         else {
 623                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 624                         gboolean sent = FALSE;
 625                         gint response = GTK_RESPONSE_ACCEPT;
 626                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 627                         /* Save currently edited message to Drafts if it was not sent */
 628                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 629
 630                                 /* Raise the window if it's minimized */
 631                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 632                                         gtk_window_present (GTK_WINDOW (window));
 633
 634                                 response =
 635                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 636                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 637                                 /* Save to drafts */
 638                                 if (response != GTK_RESPONSE_CANCEL)
 639                                         modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window));
 640                         }
 641                 }
 642         }
 643
 644         /* Unregister window */
 645         modest_window_mgr_unregister_window (self, window);
 646
 647         return FALSE;
 648 }
 649
 650 static void
 651 disconnect_msg_changed (gpointer key,
 652                         gpointer value,
 653                         gpointer user_data)
 654 {
 655         guint handler_id;
 656         handler_id = GPOINTER_TO_UINT(value);
 657
 658         if (key && G_IS_OBJECT(key))
 659                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 660 }
 661
 662 void
 663 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 664                                      ModestWindow *window)
 665 {
 666         GList *win;
 667         ModestWindowMgrPrivate *priv;
 668         gulong *tmp, handler_id;
 669
 670         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 671         g_return_if_fail (MODEST_IS_WINDOW (window));
 672
 673         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 674
 675         win = g_list_find (priv->window_list, window);
 676         if (!win) {
 677                 g_warning ("Trying to unregister a window that has not being registered yet");
 678                 return;
 679         }
 680
 681         /* If it's the main window unset it */
 682         if (priv->main_window == window) {
 683                 priv->main_window = NULL;
 684
 685                 /* Disconnect all emissions of msg-changed */
 686                 if (priv->viewer_handlers) {
 687                         g_hash_table_foreach (priv->viewer_handlers,
 688                                               disconnect_msg_changed,
 689                                               NULL);
 690                         g_hash_table_destroy (priv->viewer_handlers);
 691                         priv->viewer_handlers = NULL;
 692                 }
 693         }
 694
 695         /* Remove the viewer window handler from the hash table. The
 696            HashTable could not exist if the main window was closeed
 697            when there were other windows remaining */
 698         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 699                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 700                 /* If the viewer was created without a main window
 701                    (for example when opening a message through D-Bus
 702                    the viewer handlers was not registered */
 703                 if (tmp) {
 704                         g_signal_handler_disconnect (window, *tmp);
 705                         g_hash_table_remove (priv->viewer_handlers, window);
 706                 }
 707         }
 708
 709         /* Save state */
 710         modest_window_save_state (window);
 711
 712         /* Remove from list & hash table */
 713         priv->window_list = g_list_remove_link (priv->window_list, win);
 714         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 715         handler_id = *tmp;
 716         g_hash_table_remove (priv->destroy_handlers, window);
 717
 718         /* Disconnect the "delete-event" handler, we won't need it anymore */
 719         g_signal_handler_disconnect (window, handler_id);
 720
 721         /* Disconnect all the window signals */
 722         modest_window_disconnect_signals (window);
 723
 724         /* Destroy the window */
 725         gtk_widget_destroy (win->data);
 726
 727         /* If there are no more windows registered emit the signal */
 728         if (priv->window_list == NULL)
 729                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 730 }
 731
 732
 733
 734 void
 735 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 736                                        gboolean on)
 737 {
 738         ModestWindowMgrPrivate *priv;
 739         GList *win = NULL;
 740         ModestConf *conf;
 741
 742         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 743
 744         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 745
 746         /* If there is no change do nothing */
 747         if (priv->fullscreen_mode == on)
 748                 return;
 749
 750         priv->fullscreen_mode = on;
 751
 752         conf = modest_runtime_get_conf ();
 753
 754         /* Update windows */
 755         win = priv->window_list;
 756         while (win) {
 757                 gboolean show;
 758                 const gchar *key = NULL;
 759
 760                 /* Getting this from gconf everytime is not that
 761                    expensive, we'll do it just a few times */
 762                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 763                 show = modest_conf_get_bool (conf, key, NULL);
 764
 765                 /* Set fullscreen/unfullscreen */
 766                 if (on)
 767                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 768                 else
 769                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 770
 771                 /* Show/Hide toolbar */
 772                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 773
 774                 win = g_list_next (win);
 775         }
 776 }
 777
 778 gboolean
 779 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 780 {
 781         ModestWindowMgrPrivate *priv;
 782
 783         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 784
 785         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 786
 787         return priv->fullscreen_mode;
 788 }
 789
 790 void
 791 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
 792                                  GType window_type,
 793                                  gboolean show_toolbars,
 794                                  gboolean fullscreen)
 795 {
 796         ModestWindowMgrPrivate *priv;
 797         ModestConf *conf;
 798         const gchar *key = NULL;
 799
 800         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 801
 802         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 803         conf = modest_runtime_get_conf ();
 804
 805         /* If nothing changes then return */
 806         key = get_show_toolbar_key (window_type, fullscreen);
 807         conf = modest_runtime_get_conf ();
 808         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
 809                 return;
 810
 811         /* Save in conf */
 812         modest_conf_set_bool (conf, key, show_toolbars, NULL);
 813
 814         /* Apply now if the view mode is the right one */
 815         if ((fullscreen && priv->fullscreen_mode) ||
 816             (!fullscreen && !priv->fullscreen_mode)) {
 817
 818                 GList *win = priv->window_list;
 819
 820                 while (win) {
 821                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
 822                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
 823                                                             show_toolbars);
 824                         win = g_list_next (win);
 825                 }
 826         }
 827 }
 828
 829 ModestWindow*
 830 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
 831 {
 832         ModestWindowMgrPrivate *priv;
 833
 834         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 835         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 836
 837         /* create the main window, if it hasn't been created yet */
 838         if (!priv->main_window && create) {
 839                 /* modest_window_mgr_register_window will set priv->main_window */
 840                 modest_window_mgr_register_window (self, modest_main_window_new ());
 841                 g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
 842         }
 843
 844         return priv->main_window;
 845 }
 846
 847
 848 gboolean
 849 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
 850 {
 851         ModestWindowMgrPrivate *priv;
 852
 853         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 854         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 855
 856         return priv->main_window != NULL;
 857 }
 858
 859
 860 GtkWindow *
 861 modest_window_mgr_get_modal (ModestWindowMgr *self)
 862 {
 863         ModestWindowMgrPrivate *priv;
 864
 865         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 866         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 867
 868         return g_queue_peek_head (priv->modal_windows);
 869 }
 870
 871
 872 void
 873 modest_window_mgr_set_modal (ModestWindowMgr *self,
 874                              GtkWindow *window)
 875 {
 876         GtkWindow *old_modal;
 877         ModestWindowMgrPrivate *priv;
 878
 879         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 880         g_return_if_fail (GTK_IS_WINDOW (window));
 881
 882         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 883         g_mutex_lock (priv->queue_lock);
 884         old_modal = g_queue_peek_head (priv->modal_windows);
 885         g_mutex_unlock (priv->queue_lock);
 886
 887         if (!old_modal) {
 888                 gtk_window_set_modal (window, TRUE);
 889         } else {
 890                 /* un-modalize the old one; the one on top should be the
 891                  * modal one */
 892                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
 893                 gtk_window_set_modal (window, TRUE);
 894         }
 895
 896         /* this will be the new modal window */
 897         g_mutex_lock (priv->queue_lock);
 898         g_queue_push_head (priv->modal_windows, window);
 899         g_mutex_unlock (priv->queue_lock);
 900
 901         if (GTK_IS_DIALOG (window))
 902                 /* Note that response is not always enough because it
 903                    could be captured and removed easily by dialogs but
 904                    works for most of situations */
 905                 priv->modal_handler_uids =
 906                         modest_signal_mgr_connect (priv->modal_handler_uids,
 907                                                    G_OBJECT (window),
 908                                                    "response",
 909                                                    G_CALLBACK (on_modal_dialog_close),
 910                                                    self);
 911         else
 912                 priv->modal_handler_uids =
 913                         modest_signal_mgr_connect (priv->modal_handler_uids,
 914                                                    G_OBJECT (window),
 915                                                    "delete-event",
 916                                                    G_CALLBACK (on_modal_window_close),
 917                                                    self);
 918 }
 919
 920
 921 static void
 922 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
 923 {
 924         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
 925         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 926
 927         /* Forget this window,
 928          * so hibernation will be allowed again if no windows are remembered: */
 929         priv->windows_that_prevent_hibernation =
 930                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
 931 }
 932
 933 static void
 934 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
 935 {
 936         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
 937         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 938
 939         GtkWindow *window = GTK_WINDOW (widget);
 940
 941         priv->windows_that_prevent_hibernation =
 942                         g_slist_append (priv->windows_that_prevent_hibernation, window);
 943
 944         /* Allow hibernation again when the window has been hidden: */
 945         g_signal_connect (window, "hide",
 946                 G_CALLBACK (on_nonhibernating_window_hide), self);
 947 }
 948
 949 void
 950 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
 951                                                                   GtkWindow *window)
 952 {
 953         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 954
 955         if (GTK_WIDGET_VISIBLE(window)) {
 956                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
 957         } else {
 958                 /* Wait for it to be shown: */
 959                 g_signal_connect (window, "show",
 960                         G_CALLBACK (on_nonhibernating_window_show), self);
 961         }
 962 }
 963
 964 gboolean
 965 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
 966 {
 967         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 968
 969         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 970
 971         /* Prevent hibernation if any open windows are currently
 972          * preventing hibernation: */
 973         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
 974 }
 975
 976
 977 void
 978 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
 979 {
 980         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 981
 982         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 983
 984         /* Iterate over all windows */
 985         GList *win = priv->window_list;
 986         while (win) {
 987                 ModestWindow *window = MODEST_WINDOW (win->data);
 988                 if (window) {
 989                         /* This calls the vfunc,
 990                          * so each window can do its own thing: */
 991                         modest_window_save_state (window);
 992                 }
 993
 994                 win = g_list_next (win);
 995         }
 996 }
 997
 998 static gboolean
 999 idle_top_modal (gpointer data)
1000 {
1001         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1002         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1003         GtkWindow *topmost;
1004
1005         /* Get the top modal */
1006         g_mutex_lock (priv->queue_lock);
1007         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1008         g_mutex_unlock (priv->queue_lock);
1009
1010         /* Show it */
1011         if (topmost)
1012                 gtk_window_present (topmost);
1013
1014         return FALSE;
1015 }
1016
1017 static void
1018 remove_modal_from_queue (GtkWidget *widget,
1019                          ModestWindowMgr *self)
1020 {
1021         ModestWindowMgrPrivate *priv;
1022         GList *item = NULL;
1023
1024         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1025
1026         /* Remove from queue. We don't use remove, because we want to
1027            exit if the widget does not belong to the queue */
1028         g_mutex_lock (priv->queue_lock);
1029         item = g_queue_find (priv->modal_windows, widget);
1030         if (!item) {
1031                 g_warning ("Trying to remove a modal window that is not registered");
1032                 g_mutex_unlock (priv->queue_lock);
1033                 return;
1034         }
1035         g_queue_unlink (priv->modal_windows, item);
1036         g_mutex_unlock (priv->queue_lock);
1037
1038         /* Disconnect handler */
1039         priv->modal_handler_uids =
1040                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1041                                               G_OBJECT (widget),
1042                                               GTK_IS_DIALOG (widget) ?
1043                                               "response" :
1044                                               "destroy-event");
1045
1046         /* Schedule the next one for being shown */
1047         g_idle_add (idle_top_modal, self);
1048 }
1049
1050 static gboolean
1051 on_modal_window_close (GtkWidget *widget,
1052                        GdkEvent *event,
1053                        gpointer user_data)
1054 {
1055         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1056
1057         /* Remove modal window from queue */
1058         remove_modal_from_queue (widget, self);
1059
1060         /* Continue */
1061         return FALSE;
1062 }
1063
1064 static void
1065 on_modal_dialog_close (GtkDialog *dialog,
1066                        gint arg1,
1067                        gpointer user_data)
1068 {
1069         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1070
1071         /* Remove modal window from queue */
1072         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1073 }
1074
1075 gint
1076 modest_window_mgr_num_windows (ModestWindowMgr *self)
1077 {
1078         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1079         gint num_windows = 0;
1080
1081         if (priv->window_list)
1082                 num_windows = g_list_length (priv->window_list);
1083
1084         return num_windows;
1085 }