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 #include "modest-debug.h"
  40
  41
  42 /* 'private'/'protected' functions */
  43 static void modest_window_mgr_class_init (ModestWindowMgrClass *klass);
  44 static void modest_window_mgr_init       (ModestWindowMgr *obj);
  45 static void modest_window_mgr_finalize   (GObject *obj);
  46
  47 static gboolean on_window_destroy        (ModestWindow *window,
  48                                           GdkEvent *event,
  49                                           ModestWindowMgr *self);
  50
  51 static gboolean on_modal_window_close    (GtkWidget *widget,
  52                                           GdkEvent *event,
  53                                           gpointer user_data);
  54
  55 static void     on_modal_dialog_close    (GtkDialog *dialog,
  56                                           gint arg1,
  57                                           gpointer user_data);
  58
  59 static const gchar* get_show_toolbar_key (GType window_type,
  60                                           gboolean fullscreen);
  61
  62 /* list my signals  */
  63 enum {
  64         WINDOW_LIST_EMPTY_SIGNAL,
  65         NUM_SIGNALS
  66 };
  67
  68 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
  69 struct _ModestWindowMgrPrivate {
  70         GList        *window_list;
  71
  72         ModestWindow *main_window;
  73
  74         GMutex       *queue_lock;
  75         GQueue       *modal_windows;
  76
  77         gboolean     fullscreen_mode;
  78
  79         GSList       *windows_that_prevent_hibernation;
  80         GSList       *preregistered_uids;
  81         GHashTable   *destroy_handlers;
  82         GHashTable   *viewer_handlers;
  83
  84         guint        closing_time;
  85
  86         GSList       *modal_handler_uids;
  87         GtkWidget    *cached_view;
  88         GtkWidget    *cached_editor;
  89         guint        idle_load_view_id;
  90         guint        idle_load_editor_id;
  91 };
  92 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  93                                                MODEST_TYPE_WINDOW_MGR, \
  94                                                ModestWindowMgrPrivate))
  95 /* globals */
  96 static GObjectClass *parent_class = NULL;
  97
  98 /* uncomment the following if you have defined any signals */
  99 static guint signals[NUM_SIGNALS] = {0};
 100
 101 GType
 102 modest_window_mgr_get_type (void)
 103 {
 104         static GType my_type = 0;
 105         if (!my_type) {
 106                 static const GTypeInfo my_info = {
 107                         sizeof(ModestWindowMgrClass),
 108                         NULL,           /* base init */
 109                         NULL,           /* base finalize */
 110                         (GClassInitFunc) modest_window_mgr_class_init,
 111                         NULL,           /* class finalize */
 112                         NULL,           /* class data */
 113                         sizeof(ModestWindowMgr),
 114                         1,              /* n_preallocs */
 115                         (GInstanceInitFunc) modest_window_mgr_init,
 116                         NULL
 117                 };
 118                 my_type = g_type_register_static (G_TYPE_OBJECT,
 119                                                   "ModestWindowMgr",
 120                                                   &my_info, 0);
 121         }
 122         return my_type;
 123 }
 124
 125 static void
 126 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 127 {
 128         GObjectClass *gobject_class;
 129         gobject_class = (GObjectClass*) klass;
 130
 131         parent_class            = g_type_class_peek_parent (klass);
 132         gobject_class->finalize = modest_window_mgr_finalize;
 133
 134         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 135
 136
 137         /**
 138          * ModestWindowMgr::window-list-empty
 139          * @self: the #ModestWindowMgr that emits the signal
 140          * @user_data: user data set when the signal handler was connected
 141          *
 142          * Issued whenever the window list becomes empty
 143          */
 144         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 145                 g_signal_new ("window-list-empty",
 146                               G_TYPE_FROM_CLASS (gobject_class),
 147                               G_SIGNAL_RUN_FIRST,
 148                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 149                               NULL, NULL,
 150                               g_cclosure_marshal_VOID__VOID,
 151                               G_TYPE_NONE, 0);
 152 }
 153
 154 static gboolean
 155 idle_load_view (ModestWindowMgr *mgr)
 156 {
 157         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 158
 159         priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
 160         priv->idle_load_view_id = 0;
 161         return FALSE;
 162 }
 163
 164 static gboolean
 165 idle_load_editor (ModestWindowMgr *mgr)
 166 {
 167         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 168
 169         priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
 170         priv->idle_load_editor_id = 0;
 171         return FALSE;
 172 }
 173
 174 static void
 175 load_new_view (ModestWindowMgr *self)
 176 {
 177         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 178         if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
 179                 priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
 180 }
 181
 182 static void
 183 load_new_editor (ModestWindowMgr *self)
 184 {
 185         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 186         if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
 187                 priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 188 }
 189
 190 static void
 191 modest_window_mgr_init (ModestWindowMgr *obj)
 192 {
 193         ModestWindowMgrPrivate *priv;
 194
 195         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 196         priv->window_list = NULL;
 197         priv->main_window = NULL;
 198         priv->fullscreen_mode = FALSE;
 199
 200         priv->modal_windows = g_queue_new ();
 201         priv->queue_lock = g_mutex_new ();
 202
 203         priv->preregistered_uids = NULL;
 204
 205         /* Could not initialize it from gconf, singletons are not
 206            ready yet */
 207         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 208         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 209
 210         priv->closing_time = 0;
 211
 212         priv->modal_handler_uids = NULL;
 213         priv->cached_view = NULL;
 214         priv->cached_editor = NULL;
 215 }
 216
 217 static void
 218 modest_window_mgr_finalize (GObject *obj)
 219 {
 220         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 221
 222         if (priv->idle_load_view_id > 0) {
 223                 g_source_remove (priv->idle_load_view_id);
 224                 priv->idle_load_view_id = 0;
 225         }
 226
 227         if (priv->idle_load_editor_id > 0) {
 228                 g_source_remove (priv->idle_load_editor_id);
 229                 priv->idle_load_editor_id = 0;
 230         }
 231
 232         if (priv->cached_view) {
 233                 gtk_widget_destroy (priv->cached_view);
 234                 priv->cached_view = NULL;
 235         }
 236         if (priv->cached_editor) {
 237                 gtk_widget_destroy (priv->cached_editor);
 238                 priv->cached_editor = NULL;
 239         }
 240
 241         if (priv->window_list) {
 242                 GList *iter = priv->window_list;
 243                 /* unregister pending windows */
 244                 while (iter) {
 245                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj),
 246                                                              MODEST_WINDOW (iter->data));
 247                         iter = g_list_next (iter);
 248                 }
 249                 g_list_free (priv->window_list);
 250                 priv->window_list = NULL;
 251         }
 252
 253         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 254         g_slist_free (priv->preregistered_uids);
 255
 256
 257         /* Free the hash table with the handlers */
 258         if (priv->destroy_handlers) {
 259                 g_hash_table_destroy (priv->destroy_handlers);
 260                 priv->destroy_handlers = NULL;
 261         }
 262
 263         if (priv->viewer_handlers) {
 264                 g_hash_table_destroy (priv->viewer_handlers);
 265                 priv->viewer_handlers = NULL;
 266         }
 267
 268         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 269
 270         if (priv->modal_windows) {
 271                 g_mutex_lock (priv->queue_lock);
 272                 g_queue_free (priv->modal_windows);
 273                 priv->modal_windows = NULL;
 274                 g_mutex_unlock (priv->queue_lock);
 275         }
 276         g_mutex_free (priv->queue_lock);
 277
 278         /* Do not unref priv->main_window because it does not hold a
 279            new reference */
 280
 281
 282         G_OBJECT_CLASS(parent_class)->finalize (obj);
 283 }
 284
 285 ModestWindowMgr*
 286 modest_window_mgr_new (void)
 287 {
 288         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 289 }
 290
 291
 292
 293
 294 /* do we have uid? */
 295 static gboolean
 296 has_uid (GSList *list, const gchar *uid)
 297 {
 298         GSList *cursor = list;
 299
 300         if (!uid)
 301                 return FALSE;
 302
 303         while (cursor) {
 304                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 305                         return TRUE;
 306                 cursor = g_slist_next (cursor);
 307         }
 308         return FALSE;
 309 }
 310
 311
 312 /* remove all from the list have have uid = uid */
 313 static GSList*
 314 remove_uid (GSList *list, const gchar *uid)
 315 {
 316         GSList *cursor = list, *start = list;
 317
 318         if (!uid)
 319                 return FALSE;
 320
 321         while (cursor) {
 322                 GSList *next = g_slist_next (cursor);
 323                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 324                         g_free (cursor->data);
 325                         start = g_slist_delete_link (start, cursor);
 326                 }
 327                 cursor = next;
 328         }
 329         return start;
 330 }
 331
 332
 333 static GSList *
 334 append_uid (GSList *list, const gchar *uid)
 335 {
 336         return g_slist_append (list, g_strdup(uid));
 337 }
 338
 339
 340
 341 void
 342 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 343 {
 344         ModestWindowMgrPrivate *priv;
 345         gchar* uid;
 346
 347         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 348         g_return_if_fail (TNY_IS_HEADER(header));
 349
 350         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 351         uid = modest_tny_folder_get_header_unique_id (header);
 352
 353         if (uid == NULL)
 354                 uid = g_strdup (alt_uid);
 355
 356         if (!has_uid (priv->preregistered_uids, uid)) {
 357                 MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 358                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 359         } else
 360                 MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
 361
 362         g_free (uid);
 363 }
 364
 365 void
 366 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 367 {
 368         ModestWindowMgrPrivate *priv;
 369         gchar* uid;
 370
 371         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 372         g_return_if_fail (TNY_IS_HEADER(header));
 373
 374         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 375         uid = modest_tny_folder_get_header_unique_id (header);
 376
 377         if (!has_uid (priv->preregistered_uids, uid)) {
 378                 MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 379                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 380         } else
 381                 MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
 382
 383         if (has_uid (priv->preregistered_uids, uid)) {
 384                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 385                 if (has_uid (priv->preregistered_uids, uid))
 386                         g_debug ("BUG: uid %s NOT removed", uid);
 387                 else
 388                         MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 389         }
 390
 391         g_free (uid);
 392 }
 393
 394
 395 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 396
 397 void
 398 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 399 {
 400         /* we don't need 'self', but for API consistency... */
 401         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 402
 403         g_return_if_fail (win && GTK_IS_WINDOW(win));
 404         g_return_if_fail (help_id);
 405
 406         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 407                                 g_strdup(help_id), g_free);
 408 }
 409
 410
 411 const gchar*
 412 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 413 {
 414         const gchar* help_id = NULL;
 415
 416         /* we don't need 'self', but for API consistency... */
 417         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 418
 419         g_return_val_if_fail (win, NULL);
 420         g_return_val_if_fail (GTK_IS_WINDOW(win), NULL);
 421
 422         if (MODEST_IS_MAIN_WINDOW (win)) {
 423                 GtkWidget *folder_view;
 424                 TnyFolderStore *folder_store;
 425
 426                 /* Get selected folder */
 427                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 428                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 429                 folder_store = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 430
 431                 /* Switch help_id */
 432                 if (folder_store && TNY_IS_FOLDER (folder_store)) {
 433                         help_id = modest_tny_folder_get_help_id (TNY_FOLDER (folder_store));
 434                         if (!help_id)
 435                                 g_warning ("%s: BUG: did not get a valid help_id", __FUNCTION__);
 436                 }
 437                 if (folder_store)
 438                         g_object_unref (folder_store);
 439         }
 440
 441         if (!help_id)
 442                 help_id = g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 443
 444         return help_id;
 445 }
 446
 447 static gint
 448 compare_msguids (ModestWindow *win,
 449                  const gchar *uid)
 450 {
 451         const gchar *msg_uid;
 452
 453         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 454                 return 1;
 455
 456         /* Get message uid from msg window */
 457         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 458                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 459                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 460                         return 0;
 461         } else {
 462                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 463         }
 464
 465         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 466                 return 0;
 467         else
 468                 return 1;
 469 }
 470
 471 void
 472 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 473 {
 474         ModestWindowMgrPrivate *priv = NULL;
 475         GList *wins = NULL;
 476         gboolean ret_value = FALSE;
 477
 478         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 479         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 480
 481         /* delete-event handler already removes window_list item, */
 482         /* so no next its required on this loop  */
 483         wins = priv->window_list;
 484         while (wins) {
 485                 g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 486
 487                 wins = priv->window_list;
 488         }
 489 }
 490
 491
 492 gboolean
 493 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 494                                           ModestWindow **win)
 495 {
 496         ModestWindowMgrPrivate *priv = NULL;
 497         gchar* uid = NULL;
 498         gboolean has_header, has_window = FALSE;
 499         GList *item = NULL;
 500
 501         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 502         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 503
 504         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 505
 506         uid = modest_tny_folder_get_header_unique_id (header);
 507
 508         if (win)
 509                 *win = NULL;
 510
 511         has_header = has_uid (priv->preregistered_uids, uid);
 512
 513         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 514         if (item) {
 515                 has_window = TRUE;
 516                 if (win) {
 517                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 518                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 519                                 g_debug ("not a valid window!");
 520                         else {
 521                                 g_debug ("found a window");
 522                                 *win = MODEST_WINDOW (item->data);
 523                         }
 524                 }
 525         }
 526         g_free (uid);
 527
 528         return has_header || has_window;
 529 }
 530
 531 static const gchar *
 532 get_show_toolbar_key (GType window_type,
 533                       gboolean fullscreen)
 534 {
 535         const gchar *key = NULL;
 536
 537         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 538                 key = (fullscreen) ?
 539                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 540                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 541         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 542                 key = (fullscreen) ?
 543                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 544                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 545         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 546                 key = (fullscreen) ?
 547                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 548                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 549         else
 550                 g_return_val_if_reached (NULL);
 551
 552         return key;
 553 }
 554
 555 void
 556 modest_window_mgr_register_window (ModestWindowMgr *self,
 557                                    ModestWindow *window)
 558 {
 559         GList *win;
 560         ModestWindowMgrPrivate *priv;
 561         gint *handler_id;
 562         const gchar *key;
 563
 564         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 565         g_return_if_fail (GTK_IS_WINDOW (window));
 566
 567         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 568
 569         win = g_list_find (priv->window_list, window);
 570         if (win) {
 571                 /* this is for the case we want to register the window and it was already
 572                  * registered. We leave silently.
 573                  */
 574                 return;
 575         }
 576
 577         /* Check that it's not a second main window */
 578         if (MODEST_IS_MAIN_WINDOW (window)) {
 579                 if (priv->main_window) {
 580                         g_warning ("%s: trying to register a second main window",
 581                                    __FUNCTION__);
 582                         return;
 583                 } else {
 584                         priv->main_window = window;
 585                         load_new_view (self);
 586                         load_new_editor (self);
 587                 }
 588         }
 589
 590         /* remove from the list of pre-registered uids */
 591         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 592                 const gchar *uid = modest_msg_view_window_get_message_uid
 593                         (MODEST_MSG_VIEW_WINDOW (window));
 594
 595                 if (!has_uid (priv->preregistered_uids, uid))
 596                         g_debug ("weird: no uid for window (%s)", uid);
 597
 598                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
 599
 600                 priv->preregistered_uids =
 601                         remove_uid (priv->preregistered_uids,
 602                                     modest_msg_view_window_get_message_uid
 603                                     (MODEST_MSG_VIEW_WINDOW (window)));
 604         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 605                 const gchar *uid = modest_msg_edit_window_get_message_uid
 606                         (MODEST_MSG_EDIT_WINDOW (window));
 607
 608                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 609
 610                 priv->preregistered_uids =
 611                         remove_uid (priv->preregistered_uids,
 612                                     modest_msg_edit_window_get_message_uid
 613                                     (MODEST_MSG_EDIT_WINDOW (window)));
 614         }
 615
 616         /* Add to list. Keep a reference to the window */
 617         g_object_ref (window);
 618         priv->window_list = g_list_prepend (priv->window_list, window);
 619
 620         /* Listen to object destruction */
 621         handler_id = g_malloc0 (sizeof (gint));
 622         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 623         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 624
 625         /* If there is a msg view window, let the main window listen the msg-changed signal */
 626         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 627                 gulong *handler;
 628                 handler = g_malloc0 (sizeof (gulong));
 629                 *handler = g_signal_connect (window, "msg-changed",
 630                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 631                                              priv->main_window);
 632                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 633         }
 634
 635         /* Put into fullscreen if needed */
 636         if (priv->fullscreen_mode)
 637                 gtk_window_fullscreen (GTK_WINDOW (window));
 638
 639         /* Show/hide toolbar & fullscreen */
 640         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 641         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 642 }
 643
 644 static gboolean
 645 on_window_destroy (ModestWindow *window,
 646                    GdkEvent *event,
 647                    ModestWindowMgr *self)
 648 {
 649         gint dialog_response = GTK_RESPONSE_NONE;
 650
 651         /* Specific stuff first */
 652         if (MODEST_IS_MAIN_WINDOW (window)) {
 653                 ModestWindowMgrPrivate *priv;
 654                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 655
 656                 /* If more than one window already opened */
 657                 if (g_list_length (priv->window_list) > 1) {
 658
 659                         /* Present the window if it's not visible now */
 660                         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 661                                 gtk_window_present (GTK_WINDOW (window));
 662                         /* Create the confirmation dialog MSG-NOT308 */
 663                         dialog_response = modest_platform_run_confirmation_dialog (
 664                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 665
 666                         /* If the user wants to close all the windows */
 667                         if ((dialog_response == GTK_RESPONSE_OK)
 668                                         || (dialog_response == GTK_RESPONSE_ACCEPT)
 669                                         || (dialog_response == GTK_RESPONSE_YES))
 670                                 {
 671                                         GList *iter = priv->window_list;
 672                                         do {
 673                                                 if (iter->data != window) {
 674                                                         GList *tmp = iter->next;
 675                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 676                                                                         event,
 677                                                                         self);
 678                                                         iter = tmp;
 679                                                 } else {
 680                                                         iter = g_list_next (iter);
 681                                                 }
 682                                         } while (iter);
 683                                 }
 684                         else
 685                                 {
 686                                         return TRUE;
 687                                 }
 688                 }
 689         }
 690         else {
 691                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 692                         gboolean sent = FALSE;
 693                         gint response = GTK_RESPONSE_ACCEPT;
 694                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 695                         /* Save currently edited message to Drafts if it was not sent */
 696                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 697
 698                                 /* Raise the window if it's minimized */
 699                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 700                                         gtk_window_present (GTK_WINDOW (window));
 701
 702                                 response =
 703                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 704                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 705                                 /* Save to drafts */
 706                                 if (response != GTK_RESPONSE_CANCEL)
 707                                         modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window));
 708                         }
 709                 }
 710         }
 711
 712         /* Unregister window */
 713         modest_window_mgr_unregister_window (self, window);
 714
 715         return FALSE;
 716 }
 717
 718 static void
 719 disconnect_msg_changed (gpointer key,
 720                         gpointer value,
 721                         gpointer user_data)
 722 {
 723         guint handler_id;
 724         handler_id = GPOINTER_TO_UINT(value);
 725
 726         if (key && G_IS_OBJECT(key))
 727                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 728 }
 729
 730 void
 731 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 732                                      ModestWindow *window)
 733 {
 734         GList *win;
 735         ModestWindowMgrPrivate *priv;
 736         gulong *tmp, handler_id;
 737
 738         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 739         g_return_if_fail (MODEST_IS_WINDOW (window));
 740
 741         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 742
 743         win = g_list_find (priv->window_list, window);
 744         if (!win) {
 745                 g_warning ("Trying to unregister a window that has not being registered yet");
 746                 return;
 747         }
 748
 749         /* If it's the main window unset it */
 750         if (priv->main_window == window) {
 751                 priv->main_window = NULL;
 752
 753                 /* Disconnect all emissions of msg-changed */
 754                 if (priv->viewer_handlers) {
 755                         g_hash_table_foreach (priv->viewer_handlers,
 756                                               disconnect_msg_changed,
 757                                               NULL);
 758                         g_hash_table_destroy (priv->viewer_handlers);
 759                         priv->viewer_handlers = NULL;
 760                 }
 761         }
 762
 763         /* Remove the viewer window handler from the hash table. The
 764            HashTable could not exist if the main window was closeed
 765            when there were other windows remaining */
 766         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 767                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 768                 /* If the viewer was created without a main window
 769                    (for example when opening a message through D-Bus
 770                    the viewer handlers was not registered */
 771                 if (tmp) {
 772                         g_signal_handler_disconnect (window, *tmp);
 773                         g_hash_table_remove (priv->viewer_handlers, window);
 774                 }
 775         }
 776
 777         /* Save state */
 778         modest_window_save_state (window);
 779
 780         /* Remove from list & hash table */
 781         priv->window_list = g_list_remove_link (priv->window_list, win);
 782         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 783         handler_id = *tmp;
 784         g_hash_table_remove (priv->destroy_handlers, window);
 785
 786         /* cancel open and receive operations */
 787         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 788                 ModestMailOperationTypeOperation type;
 789                 GSList* pending_ops = NULL;
 790                 GSList* tmp_list = NULL;
 791                 pending_ops = modest_mail_operation_queue_get_by_source (
 792                                 modest_runtime_get_mail_operation_queue (),
 793                                 G_OBJECT (window));
 794                 while (pending_ops != NULL) {
 795                         type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 796                         if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 797                                 modest_mail_operation_cancel (pending_ops->data);
 798                         }
 799                         tmp_list = pending_ops;
 800                         pending_ops = g_slist_next (pending_ops);
 801                         g_slist_free_1 (tmp_list);
 802                 }
 803         }
 804
 805         /* Disconnect the "delete-event" handler, we won't need it anymore */
 806         g_signal_handler_disconnect (window, handler_id);
 807
 808         /* Disconnect all the window signals */
 809         modest_window_disconnect_signals (window);
 810
 811         /* Destroy the window */
 812         gtk_widget_destroy (win->data);
 813
 814         /* If there are no more windows registered emit the signal */
 815         if (priv->window_list == NULL)
 816                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 817 }
 818
 819
 820
 821 void
 822 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 823                                        gboolean on)
 824 {
 825         ModestWindowMgrPrivate *priv;
 826         GList *win = NULL;
 827         ModestConf *conf;
 828
 829         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 830
 831         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 832
 833         /* If there is no change do nothing */
 834         if (priv->fullscreen_mode == on)
 835                 return;
 836
 837         priv->fullscreen_mode = on;
 838
 839         conf = modest_runtime_get_conf ();
 840
 841         /* Update windows */
 842         win = priv->window_list;
 843         while (win) {
 844                 gboolean show;
 845                 const gchar *key = NULL;
 846
 847                 /* Getting this from gconf everytime is not that
 848                    expensive, we'll do it just a few times */
 849                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 850                 show = modest_conf_get_bool (conf, key, NULL);
 851
 852                 /* Set fullscreen/unfullscreen */
 853                 if (on)
 854                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 855                 else
 856                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 857
 858                 /* Show/Hide toolbar */
 859                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 860
 861                 win = g_list_next (win);
 862         }
 863 }
 864
 865 gboolean
 866 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 867 {
 868         ModestWindowMgrPrivate *priv;
 869
 870         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 871
 872         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 873
 874         return priv->fullscreen_mode;
 875 }
 876
 877 void
 878 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
 879                                  GType window_type,
 880                                  gboolean show_toolbars,
 881                                  gboolean fullscreen)
 882 {
 883         ModestWindowMgrPrivate *priv;
 884         ModestConf *conf;
 885         const gchar *key = NULL;
 886
 887         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 888
 889         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 890         conf = modest_runtime_get_conf ();
 891
 892         /* If nothing changes then return */
 893         key = get_show_toolbar_key (window_type, fullscreen);
 894         conf = modest_runtime_get_conf ();
 895         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
 896                 return;
 897
 898         /* Save in conf */
 899         modest_conf_set_bool (conf, key, show_toolbars, NULL);
 900
 901         /* Apply now if the view mode is the right one */
 902         if ((fullscreen && priv->fullscreen_mode) ||
 903             (!fullscreen && !priv->fullscreen_mode)) {
 904
 905                 GList *win = priv->window_list;
 906
 907                 while (win) {
 908                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
 909                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
 910                                                             show_toolbars);
 911                         win = g_list_next (win);
 912                 }
 913         }
 914 }
 915
 916 ModestWindow*
 917 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
 918 {
 919         ModestWindowMgrPrivate *priv;
 920
 921         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 922         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 923
 924         /* create the main window, if it hasn't been created yet */
 925         if (!priv->main_window && create) {
 926                 /* modest_window_mgr_register_window will set priv->main_window */
 927                 modest_window_mgr_register_window (self, modest_main_window_new ());
 928                 MODEST_DEBUG_BLOCK(
 929                         g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
 930                 );
 931         }
 932
 933         return priv->main_window;
 934 }
 935
 936
 937 gboolean
 938 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
 939 {
 940         ModestWindowMgrPrivate *priv;
 941
 942         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 943         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 944
 945         return priv->main_window != NULL;
 946 }
 947
 948
 949 GtkWindow *
 950 modest_window_mgr_get_modal (ModestWindowMgr *self)
 951 {
 952         ModestWindowMgrPrivate *priv;
 953
 954         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
 955         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 956
 957         return g_queue_peek_head (priv->modal_windows);
 958 }
 959
 960
 961 void
 962 modest_window_mgr_set_modal (ModestWindowMgr *self,
 963                              GtkWindow *window)
 964 {
 965         GtkWindow *old_modal;
 966         ModestWindowMgrPrivate *priv;
 967
 968         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 969         g_return_if_fail (GTK_IS_WINDOW (window));
 970
 971         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 972         g_mutex_lock (priv->queue_lock);
 973         old_modal = g_queue_peek_head (priv->modal_windows);
 974         g_mutex_unlock (priv->queue_lock);
 975
 976         if (!old_modal) {
 977                 gtk_window_set_modal (window, TRUE);
 978         } else {
 979                 /* un-modalize the old one; the one on top should be the
 980                  * modal one */
 981                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
 982                 gtk_window_set_modal (window, TRUE);
 983         }
 984
 985         /* this will be the new modal window */
 986         g_mutex_lock (priv->queue_lock);
 987         g_queue_push_head (priv->modal_windows, window);
 988         g_mutex_unlock (priv->queue_lock);
 989
 990         if (GTK_IS_DIALOG (window))
 991                 /* Note that response is not always enough because it
 992                    could be captured and removed easily by dialogs but
 993                    works for most of situations */
 994                 priv->modal_handler_uids =
 995                         modest_signal_mgr_connect (priv->modal_handler_uids,
 996                                                    G_OBJECT (window),
 997                                                    "response",
 998                                                    G_CALLBACK (on_modal_dialog_close),
 999                                                    self);
1000         else
1001                 priv->modal_handler_uids =
1002                         modest_signal_mgr_connect (priv->modal_handler_uids,
1003                                                    G_OBJECT (window),
1004                                                    "delete-event",
1005                                                    G_CALLBACK (on_modal_window_close),
1006                                                    self);
1007 }
1008
1009
1010 static void
1011 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
1012 {
1013         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1014         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1015
1016         /* Forget this window,
1017          * so hibernation will be allowed again if no windows are remembered: */
1018         priv->windows_that_prevent_hibernation =
1019                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
1020 }
1021
1022 static void
1023 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
1024 {
1025         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1026         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1027
1028         GtkWindow *window = GTK_WINDOW (widget);
1029
1030         priv->windows_that_prevent_hibernation =
1031                         g_slist_append (priv->windows_that_prevent_hibernation, window);
1032
1033         /* Allow hibernation again when the window has been hidden: */
1034         g_signal_connect (window, "hide",
1035                 G_CALLBACK (on_nonhibernating_window_hide), self);
1036 }
1037
1038 void
1039 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
1040                                                                   GtkWindow *window)
1041 {
1042         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1043
1044         if (GTK_WIDGET_VISIBLE(window)) {
1045                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
1046         } else {
1047                 /* Wait for it to be shown: */
1048                 g_signal_connect (window, "show",
1049                         G_CALLBACK (on_nonhibernating_window_show), self);
1050         }
1051 }
1052
1053 gboolean
1054 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
1055 {
1056         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1057
1058         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1059
1060         /* Prevent hibernation if any open windows are currently
1061          * preventing hibernation: */
1062         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
1063 }
1064
1065
1066 void
1067 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
1068 {
1069         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1070
1071         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1072
1073         /* Iterate over all windows */
1074         GList *win = priv->window_list;
1075         while (win) {
1076                 ModestWindow *window = MODEST_WINDOW (win->data);
1077                 if (window) {
1078                         /* This calls the vfunc,
1079                          * so each window can do its own thing: */
1080                         modest_window_save_state (window);
1081                 }
1082
1083                 win = g_list_next (win);
1084         }
1085 }
1086
1087 static gboolean
1088 idle_top_modal (gpointer data)
1089 {
1090         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1091         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1092         GtkWindow *topmost;
1093
1094         /* Get the top modal */
1095         g_mutex_lock (priv->queue_lock);
1096         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1097         g_mutex_unlock (priv->queue_lock);
1098
1099         /* Show it */
1100         if (topmost)
1101                 gtk_window_present (topmost);
1102
1103         return FALSE;
1104 }
1105
1106 static void
1107 remove_modal_from_queue (GtkWidget *widget,
1108                          ModestWindowMgr *self)
1109 {
1110         ModestWindowMgrPrivate *priv;
1111         GList *item = NULL;
1112
1113         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1114
1115         /* Remove from queue. We don't use remove, because we want to
1116            exit if the widget does not belong to the queue */
1117         g_mutex_lock (priv->queue_lock);
1118         item = g_queue_find (priv->modal_windows, widget);
1119         if (!item) {
1120                 g_warning ("Trying to remove a modal window that is not registered");
1121                 g_mutex_unlock (priv->queue_lock);
1122                 return;
1123         }
1124         g_queue_unlink (priv->modal_windows, item);
1125         g_mutex_unlock (priv->queue_lock);
1126
1127         /* Disconnect handler */
1128         priv->modal_handler_uids =
1129                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1130                                               G_OBJECT (widget),
1131                                               GTK_IS_DIALOG (widget) ?
1132                                               "response" :
1133                                               "destroy-event");
1134
1135         /* Schedule the next one for being shown */
1136         g_idle_add (idle_top_modal, self);
1137 }
1138
1139 static gboolean
1140 on_modal_window_close (GtkWidget *widget,
1141                        GdkEvent *event,
1142                        gpointer user_data)
1143 {
1144         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1145
1146         /* Remove modal window from queue */
1147         remove_modal_from_queue (widget, self);
1148
1149         /* Continue */
1150         return FALSE;
1151 }
1152
1153 static void
1154 on_modal_dialog_close (GtkDialog *dialog,
1155                        gint arg1,
1156                        gpointer user_data)
1157 {
1158         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1159
1160         /* Remove modal window from queue */
1161         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1162 }
1163
1164 gint
1165 modest_window_mgr_num_windows (ModestWindowMgr *self)
1166 {
1167         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1168         gint num_windows = 0;
1169
1170         if (priv->window_list)
1171                 num_windows = g_list_length (priv->window_list);
1172
1173         return num_windows;
1174 }
1175
1176 GtkWidget *
1177 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
1178 {
1179         GtkWidget *result;
1180         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1181
1182         if (priv->cached_editor) {
1183                 result = priv->cached_editor;
1184                 priv->cached_editor = NULL;
1185                 load_new_editor (self);
1186         } else {
1187                 result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
1188         }
1189
1190         return result;
1191 }
1192
1193 GtkWidget *
1194 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
1195 {
1196         GtkWidget *result;
1197         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1198
1199         if (priv->cached_view) {
1200                 result = priv->cached_view;
1201                 priv->cached_view = NULL;
1202                 load_new_view (self);
1203         } else {
1204                 result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
1205         }
1206
1207         return result;
1208 }