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_destroy      (GtkObject *object,
  56                                           gpointer   user_data);
  57
  58 static void     on_modal_dialog_close    (GtkDialog *dialog,
  59                                           gint arg1,
  60                                           gpointer user_data);
  61
  62 static const gchar* get_show_toolbar_key (GType window_type,
  63                                           gboolean fullscreen);
  64
  65 /* list my signals  */
  66 enum {
  67         WINDOW_LIST_EMPTY_SIGNAL,
  68         NUM_SIGNALS
  69 };
  70
  71 typedef struct _ModestWindowMgrPrivate ModestWindowMgrPrivate;
  72 struct _ModestWindowMgrPrivate {
  73         GList        *window_list;
  74         guint         banner_counter;
  75
  76         ModestWindow *main_window;
  77
  78         GMutex       *queue_lock;
  79         GQueue       *modal_windows;
  80
  81         gboolean     fullscreen_mode;
  82
  83         GSList       *windows_that_prevent_hibernation;
  84         GSList       *preregistered_uids;
  85         GHashTable   *destroy_handlers;
  86         GHashTable   *viewer_handlers;
  87         GSList       *window_state_uids;
  88
  89         guint        closing_time;
  90
  91         GSList       *modal_handler_uids;
  92         GtkWidget    *cached_view;
  93         GtkWidget    *cached_editor;
  94         guint        idle_load_view_id;
  95         guint        idle_load_editor_id;
  96
  97         ModestWindow *current_top;
  98 };
  99 #define MODEST_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 100                                                MODEST_TYPE_WINDOW_MGR, \
 101                                                ModestWindowMgrPrivate))
 102 /* globals */
 103 static GObjectClass *parent_class = NULL;
 104
 105 /* uncomment the following if you have defined any signals */
 106 static guint signals[NUM_SIGNALS] = {0};
 107
 108 GType
 109 modest_window_mgr_get_type (void)
 110 {
 111         static GType my_type = 0;
 112         if (!my_type) {
 113                 static const GTypeInfo my_info = {
 114                         sizeof(ModestWindowMgrClass),
 115                         NULL,           /* base init */
 116                         NULL,           /* base finalize */
 117                         (GClassInitFunc) modest_window_mgr_class_init,
 118                         NULL,           /* class finalize */
 119                         NULL,           /* class data */
 120                         sizeof(ModestWindowMgr),
 121                         1,              /* n_preallocs */
 122                         (GInstanceInitFunc) modest_window_mgr_init,
 123                         NULL
 124                 };
 125                 my_type = g_type_register_static (G_TYPE_OBJECT,
 126                                                   "ModestWindowMgr",
 127                                                   &my_info, 0);
 128         }
 129         return my_type;
 130 }
 131
 132 static void
 133 modest_window_mgr_class_init (ModestWindowMgrClass *klass)
 134 {
 135         GObjectClass *gobject_class;
 136         gobject_class = (GObjectClass*) klass;
 137
 138         parent_class            = g_type_class_peek_parent (klass);
 139         gobject_class->finalize = modest_window_mgr_finalize;
 140
 141         g_type_class_add_private (gobject_class, sizeof(ModestWindowMgrPrivate));
 142
 143
 144         /**
 145          * ModestWindowMgr::window-list-empty
 146          * @self: the #ModestWindowMgr that emits the signal
 147          * @user_data: user data set when the signal handler was connected
 148          *
 149          * Issued whenever the window list becomes empty
 150          */
 151         signals[WINDOW_LIST_EMPTY_SIGNAL] =
 152                 g_signal_new ("window-list-empty",
 153                               G_TYPE_FROM_CLASS (gobject_class),
 154                               G_SIGNAL_RUN_FIRST,
 155                               G_STRUCT_OFFSET (ModestWindowMgrClass, window_list_empty),
 156                               NULL, NULL,
 157                               g_cclosure_marshal_VOID__VOID,
 158                               G_TYPE_NONE, 0);
 159 }
 160
 161 static gboolean
 162 idle_load_view (ModestWindowMgr *mgr)
 163 {
 164         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 165
 166         priv->cached_view = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
 167         priv->idle_load_view_id = 0;
 168         return FALSE;
 169 }
 170
 171 static gboolean
 172 idle_load_editor (ModestWindowMgr *mgr)
 173 {
 174         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (mgr);
 175
 176         priv->cached_editor = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
 177         priv->idle_load_editor_id = 0;
 178         return FALSE;
 179 }
 180
 181 static void
 182 load_new_view (ModestWindowMgr *self)
 183 {
 184         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 185         if ((priv->cached_view == NULL) && (priv->idle_load_view_id == 0))
 186                 priv->idle_load_view_id = g_idle_add ((GSourceFunc) idle_load_view, self);
 187 }
 188
 189 static void
 190 load_new_editor (ModestWindowMgr *self)
 191 {
 192         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 193         if ((priv->cached_editor == NULL) && (priv->idle_load_editor_id == 0))
 194                 priv->idle_load_editor_id = g_idle_add ((GSourceFunc) idle_load_editor, self);
 195 }
 196
 197 static void
 198 modest_window_mgr_init (ModestWindowMgr *obj)
 199 {
 200         ModestWindowMgrPrivate *priv;
 201
 202         priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 203         priv->window_list = NULL;
 204         priv->banner_counter = 0;
 205         priv->main_window = NULL;
 206         priv->fullscreen_mode = FALSE;
 207         priv->current_top = NULL;
 208         priv->window_state_uids = NULL;
 209
 210         priv->modal_windows = g_queue_new ();
 211         priv->queue_lock = g_mutex_new ();
 212
 213         priv->preregistered_uids = NULL;
 214
 215         /* Could not initialize it from gconf, singletons are not
 216            ready yet */
 217         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 218         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 219
 220         priv->closing_time = 0;
 221
 222         priv->modal_handler_uids = NULL;
 223         priv->cached_view = NULL;
 224         priv->cached_editor = NULL;
 225 }
 226
 227 static void
 228 modest_window_mgr_finalize (GObject *obj)
 229 {
 230         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(obj);
 231
 232         if (priv->idle_load_view_id > 0) {
 233                 g_source_remove (priv->idle_load_view_id);
 234                 priv->idle_load_view_id = 0;
 235         }
 236
 237         if (priv->idle_load_editor_id > 0) {
 238                 g_source_remove (priv->idle_load_editor_id);
 239                 priv->idle_load_editor_id = 0;
 240         }
 241
 242         if (priv->cached_view) {
 243                 gtk_widget_destroy (priv->cached_view);
 244                 priv->cached_view = NULL;
 245         }
 246         if (priv->cached_editor) {
 247                 gtk_widget_destroy (priv->cached_editor);
 248                 priv->cached_editor = NULL;
 249         }
 250
 251         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
 252         priv->window_state_uids = NULL;
 253
 254         if (priv->window_list) {
 255                 GList *iter = priv->window_list;
 256                 /* unregister pending windows */
 257                 while (iter) {
 258                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj),
 259                                                              MODEST_WINDOW (iter->data));
 260                         iter = g_list_next (iter);
 261                 }
 262                 g_list_free (priv->window_list);
 263                 priv->window_list = NULL;
 264         }
 265
 266         g_slist_foreach (priv->preregistered_uids, (GFunc)g_free, NULL);
 267         g_slist_free (priv->preregistered_uids);
 268
 269
 270         /* Free the hash table with the handlers */
 271         if (priv->destroy_handlers) {
 272                 g_hash_table_destroy (priv->destroy_handlers);
 273                 priv->destroy_handlers = NULL;
 274         }
 275
 276         if (priv->viewer_handlers) {
 277                 g_hash_table_destroy (priv->viewer_handlers);
 278                 priv->viewer_handlers = NULL;
 279         }
 280
 281         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 282         priv->modal_handler_uids = NULL;
 283
 284         if (priv->modal_windows) {
 285                 g_mutex_lock (priv->queue_lock);
 286                 g_queue_free (priv->modal_windows);
 287                 priv->modal_windows = NULL;
 288                 g_mutex_unlock (priv->queue_lock);
 289         }
 290         g_mutex_free (priv->queue_lock);
 291
 292         /* Do not unref priv->main_window because it does not hold a
 293            new reference */
 294
 295
 296         G_OBJECT_CLASS(parent_class)->finalize (obj);
 297 }
 298
 299 ModestWindowMgr*
 300 modest_window_mgr_new (void)
 301 {
 302         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_WINDOW_MGR, NULL));
 303 }
 304
 305
 306
 307
 308 /* do we have uid? */
 309 static gboolean
 310 has_uid (GSList *list, const gchar *uid)
 311 {
 312         GSList *cursor = list;
 313
 314         if (!uid)
 315                 return FALSE;
 316
 317         while (cursor) {
 318                 if (cursor->data && strcmp (cursor->data, uid) == 0)
 319                         return TRUE;
 320                 cursor = g_slist_next (cursor);
 321         }
 322         return FALSE;
 323 }
 324
 325
 326 /* remove all from the list have have uid = uid */
 327 static GSList*
 328 remove_uid (GSList *list, const gchar *uid)
 329 {
 330         GSList *cursor = list, *start = list;
 331
 332         if (!uid)
 333                 return FALSE;
 334
 335         while (cursor) {
 336                 GSList *next = g_slist_next (cursor);
 337                 if (cursor->data && strcmp (cursor->data, uid) == 0) {
 338                         g_free (cursor->data);
 339                         start = g_slist_delete_link (start, cursor);
 340                 }
 341                 cursor = next;
 342         }
 343         return start;
 344 }
 345
 346
 347 static GSList *
 348 append_uid (GSList *list, const gchar *uid)
 349 {
 350         return g_slist_append (list, g_strdup(uid));
 351 }
 352
 353
 354
 355 void
 356 modest_window_mgr_register_header (ModestWindowMgr *self,  TnyHeader *header, const gchar *alt_uid)
 357 {
 358         ModestWindowMgrPrivate *priv;
 359         gchar* uid;
 360
 361         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 362         g_return_if_fail (TNY_IS_HEADER(header));
 363
 364         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 365         uid = modest_tny_folder_get_header_unique_id (header);
 366
 367         if (uid == NULL)
 368                 uid = g_strdup (alt_uid);
 369
 370         if (!has_uid (priv->preregistered_uids, uid)) {
 371                 MODEST_DEBUG_BLOCK(g_debug ("registering new uid %s", uid););
 372                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 373         } else
 374                 MODEST_DEBUG_BLOCK(g_debug ("already had uid %s", uid););
 375
 376         g_free (uid);
 377 }
 378
 379 void
 380 modest_window_mgr_unregister_header (ModestWindowMgr *self,  TnyHeader *header)
 381 {
 382         ModestWindowMgrPrivate *priv;
 383         gchar* uid;
 384
 385         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 386         g_return_if_fail (TNY_IS_HEADER(header));
 387
 388         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 389         uid = modest_tny_folder_get_header_unique_id (header);
 390
 391         if (!has_uid (priv->preregistered_uids, uid)) {
 392                 MODEST_DEBUG_BLOCK(g_debug ("trying to unregister non-existing uid %s", uid););
 393                 priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
 394         } else
 395                 MODEST_DEBUG_BLOCK(g_debug ("unregistering uid %s", uid););
 396
 397         if (has_uid (priv->preregistered_uids, uid)) {
 398                 priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
 399                 if (has_uid (priv->preregistered_uids, uid))
 400                         g_debug ("BUG: uid %s NOT removed", uid);
 401                 else
 402                         MODEST_DEBUG_BLOCK(g_debug ("uid %s removed", uid););
 403         }
 404
 405         g_free (uid);
 406 }
 407
 408
 409 #define MODEST_WINDOW_HELP_ID_PARAM "help-id"
 410
 411 void
 412 modest_window_mgr_register_help_id (ModestWindowMgr *self, GtkWindow *win, const gchar* help_id)
 413 {
 414         /* we don't need 'self', but for API consistency... */
 415         g_return_if_fail (self && MODEST_IS_WINDOW_MGR(self));
 416
 417         g_return_if_fail (win && GTK_IS_WINDOW(win));
 418         g_return_if_fail (help_id);
 419
 420         g_object_set_data_full (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM,
 421                                 g_strdup(help_id), g_free);
 422 }
 423
 424
 425 const gchar*
 426 modest_window_mgr_get_help_id (ModestWindowMgr *self, GtkWindow *win)
 427 {
 428         const gchar* help_id = NULL;
 429
 430         /* we don't need 'self', but for API consistency... */
 431         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 432
 433         g_return_val_if_fail (win, NULL);
 434         g_return_val_if_fail (GTK_IS_WINDOW(win), NULL);
 435
 436         if (MODEST_IS_MAIN_WINDOW (win)) {
 437                 GtkWidget *folder_view;
 438                 TnyFolderStore *folder_store;
 439
 440                 /* Get selected folder */
 441                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 442                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 443                 folder_store = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 444
 445                 /* Switch help_id */
 446                 if (folder_store && TNY_IS_FOLDER (folder_store)) {
 447                         help_id = modest_tny_folder_get_help_id (TNY_FOLDER (folder_store));
 448                         if (!help_id)
 449                                 g_warning ("%s: BUG: did not get a valid help_id", __FUNCTION__);
 450                 }
 451                 if (folder_store)
 452                         g_object_unref (folder_store);
 453         }
 454
 455         if (!help_id)
 456                 help_id = g_object_get_data (G_OBJECT(win), MODEST_WINDOW_HELP_ID_PARAM);
 457
 458         return help_id;
 459 }
 460
 461 static gint
 462 compare_msguids (ModestWindow *win,
 463                  const gchar *uid)
 464 {
 465         const gchar *msg_uid;
 466
 467         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 468                 return 1;
 469
 470         /* Get message uid from msg window */
 471         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 472                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 473                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 474                         return 0;
 475         } else {
 476                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 477         }
 478
 479         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 480                 return 0;
 481         else
 482                 return 1;
 483 }
 484
 485 void
 486 modest_window_mgr_close_all_windows (ModestWindowMgr *self)
 487 {
 488         ModestWindowMgrPrivate *priv = NULL;
 489         gboolean ret_value = FALSE;
 490
 491         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 492         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 493
 494         /* If there is a main window then try to close it, and it will
 495            close the others if needed */
 496         if (priv->main_window) {
 497                 g_signal_emit_by_name (priv->main_window, "delete-event", NULL, &ret_value);
 498         } else {
 499                 GList *wins = NULL, *next = NULL;
 500
 501                 /* delete-event handler actually removes window_list item, */
 502                 wins = priv->window_list;
 503                 while (wins) {
 504                         next = g_list_next (wins);
 505                         g_signal_emit_by_name (G_OBJECT (wins->data), "delete-event", NULL, &ret_value);
 506                         wins = next;
 507                 }
 508         }
 509 }
 510
 511
 512 gboolean
 513 modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 514                                           ModestWindow **win)
 515 {
 516         ModestWindowMgrPrivate *priv = NULL;
 517         gchar* uid = NULL;
 518         gboolean has_header, has_window = FALSE;
 519         GList *item = NULL;
 520
 521         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
 522         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 523
 524         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 525
 526         uid = modest_tny_folder_get_header_unique_id (header);
 527
 528         if (win)
 529                 *win = NULL;
 530
 531         has_header = has_uid (priv->preregistered_uids, uid);
 532
 533         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 534         if (item) {
 535                 has_window = TRUE;
 536                 if (win) {
 537                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 538                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 539                                 g_debug ("not a valid window!");
 540                         else {
 541                                 g_debug ("found a window");
 542                                 *win = MODEST_WINDOW (item->data);
 543                         }
 544                 }
 545         }
 546         g_free (uid);
 547
 548         return has_header || has_window;
 549 }
 550
 551 static const gchar *
 552 get_show_toolbar_key (GType window_type,
 553                       gboolean fullscreen)
 554 {
 555         const gchar *key = NULL;
 556
 557         if (window_type == MODEST_TYPE_MAIN_WINDOW)
 558                 key = (fullscreen) ?
 559                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 560                         MODEST_CONF_MAIN_WINDOW_SHOW_TOOLBAR;
 561         else if (window_type == MODEST_TYPE_MSG_VIEW_WINDOW)
 562                 key = (fullscreen) ?
 563                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 564                         MODEST_CONF_MSG_VIEW_WINDOW_SHOW_TOOLBAR;
 565         else if (window_type ==  MODEST_TYPE_MSG_EDIT_WINDOW)
 566                 key = (fullscreen) ?
 567                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR_FULLSCREEN :
 568                         MODEST_CONF_EDIT_WINDOW_SHOW_TOOLBAR;
 569         else
 570                 g_return_val_if_reached (NULL);
 571
 572         return key;
 573 }
 574
 575 #ifdef MODEST_PLATFORM_MAEMO
 576 static void
 577 on_window_is_topmost (GObject    *gobject,
 578                       GParamSpec *arg1,
 579                       gpointer    user_data)
 580 {
 581         ModestWindowMgr *self;
 582         ModestWindowMgrPrivate *priv;
 583         ModestWindow *win = (ModestWindow *) gobject;
 584
 585         g_return_if_fail (MODEST_IS_WINDOW_MGR (user_data));
 586
 587         self = MODEST_WINDOW_MGR (user_data);
 588         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 589
 590         if (hildon_window_get_is_topmost (HILDON_WINDOW (win)))
 591                 priv->current_top = win;
 592 }
 593
 594 #else
 595 static gboolean
 596 on_window_state_event (GtkWidget           *widget,
 597                        GdkEventWindowState *event,
 598                        gpointer             user_data)
 599 {
 600         ModestWindowMgr *self;
 601         ModestWindowMgrPrivate *priv;
 602
 603         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (user_data), FALSE);
 604
 605         self = MODEST_WINDOW_MGR (user_data);
 606         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 607
 608         MODEST_DEBUG_BLOCK (
 609                             if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
 610                                     g_print ("GDK_WINDOW_STATE_WITHDRAWN\n");
 611                             if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 612                                     g_print ("GDK_WINDOW_STATE_ICONIFIED\n");
 613                             if (event->changed_mask & GDK_WINDOW_STATE_MAXIMIZED)
 614                                     g_print ("GDK_WINDOW_STATE_MAXIMIZED\n");
 615                             if (event->changed_mask & GDK_WINDOW_STATE_STICKY)
 616                                     g_print ("GDK_WINDOW_STATE_STICKY\n");
 617                             if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
 618                                     g_print ("GDK_WINDOW_STATE_FULLSCREEN\n");
 619                             if (event->changed_mask & GDK_WINDOW_STATE_ABOVE)
 620                                     g_print ("GDK_WINDOW_STATE_ABOVE\n");
 621                             if (event->changed_mask & GDK_WINDOW_STATE_BELOW)
 622                                     g_print ("GDK_WINDOW_STATE_BELOW\n");
 623                             );
 624         if (event->changed_mask & GDK_WINDOW_STATE_WITHDRAWN ||
 625             event->changed_mask & GDK_WINDOW_STATE_ABOVE) {
 626                 priv->current_top = MODEST_WINDOW (widget);
 627         }
 628
 629         return FALSE;
 630 }
 631 #endif
 632
 633 void
 634 modest_window_mgr_register_window (ModestWindowMgr *self,
 635                                    ModestWindow *window)
 636 {
 637         GList *win;
 638         ModestWindowMgrPrivate *priv;
 639         gint *handler_id;
 640         const gchar *key;
 641
 642         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 643         g_return_if_fail (GTK_IS_WINDOW (window));
 644
 645         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 646
 647         win = g_list_find (priv->window_list, window);
 648         if (win) {
 649                 /* this is for the case we want to register the window and it was already
 650                  * registered. We leave silently.
 651                  */
 652                 return;
 653         }
 654
 655         /* Check that it's not a second main window */
 656         if (MODEST_IS_MAIN_WINDOW (window)) {
 657                 if (priv->main_window) {
 658                         g_warning ("%s: trying to register a second main window",
 659                                    __FUNCTION__);
 660                         return;
 661                 } else {
 662                         priv->main_window = window;
 663                         load_new_view (self);
 664                         load_new_editor (self);
 665                 }
 666         }
 667
 668         /* remove from the list of pre-registered uids */
 669         if (MODEST_IS_MSG_VIEW_WINDOW(window)) {
 670                 const gchar *uid = modest_msg_view_window_get_message_uid
 671                         (MODEST_MSG_VIEW_WINDOW (window));
 672
 673                 if (!has_uid (priv->preregistered_uids, uid))
 674                         g_debug ("weird: no uid for window (%s)", uid);
 675
 676                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid ? uid : "<none>"););
 677
 678                 priv->preregistered_uids =
 679                         remove_uid (priv->preregistered_uids,
 680                                     modest_msg_view_window_get_message_uid
 681                                     (MODEST_MSG_VIEW_WINDOW (window)));
 682         } else if (MODEST_IS_MSG_EDIT_WINDOW(window)) {
 683                 const gchar *uid = modest_msg_edit_window_get_message_uid
 684                         (MODEST_MSG_EDIT_WINDOW (window));
 685
 686                 MODEST_DEBUG_BLOCK(g_debug ("registering window for %s", uid););
 687
 688                 priv->preregistered_uids =
 689                         remove_uid (priv->preregistered_uids,
 690                                     modest_msg_edit_window_get_message_uid
 691                                     (MODEST_MSG_EDIT_WINDOW (window)));
 692         }
 693
 694         /* Add to list. Keep a reference to the window */
 695         g_object_ref (window);
 696         priv->window_list = g_list_prepend (priv->window_list, window);
 697
 698         /* Listen to window state changes. Unfortunately
 699            window-state-event does not properly work for the Maemo
 700            version, so we need to use is-topmost and the ifdef */
 701 #ifdef MODEST_PLATFORM_MAEMO
 702         priv->window_state_uids =
 703                 modest_signal_mgr_connect (priv->window_state_uids,
 704                                            G_OBJECT (window),
 705                                            "notify::is-topmost",
 706                                            G_CALLBACK (on_window_is_topmost),
 707                                            self);
 708 #else
 709         priv->window_state_uids =
 710                 modest_signal_mgr_connect (priv->window_state_uids,
 711                                            G_OBJECT (window),
 712                                            "window-state-event",
 713                                            G_CALLBACK (on_window_state_event),
 714                                            self);
 715 #endif
 716         /* Listen to object destruction */
 717         handler_id = g_malloc0 (sizeof (gint));
 718         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 719         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 720
 721         /* If there is a msg view window, let the main window listen the msg-changed signal */
 722         if (MODEST_IS_MSG_VIEW_WINDOW(window) && priv->main_window) {
 723                 gulong *handler;
 724                 handler = g_malloc0 (sizeof (gulong));
 725                 *handler = g_signal_connect (window, "msg-changed",
 726                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
 727                                              priv->main_window);
 728                 g_hash_table_insert (priv->viewer_handlers, window, handler);
 729         }
 730
 731         /* Put into fullscreen if needed */
 732         if (priv->fullscreen_mode)
 733                 gtk_window_fullscreen (GTK_WINDOW (window));
 734
 735         /* Show/hide toolbar & fullscreen */
 736         key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (window), priv->fullscreen_mode);
 737         modest_window_show_toolbar (window, modest_conf_get_bool (modest_runtime_get_conf (), key, NULL));
 738 }
 739
 740 static void
 741 cancel_window_operations (ModestWindow *window)
 742 {
 743         GSList* pending_ops = NULL;
 744
 745         /* cancel open and receive operations */
 746         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 747                                                                  G_OBJECT (window));
 748         while (pending_ops != NULL) {
 749                 ModestMailOperationTypeOperation type;
 750                 GSList* tmp_list = NULL;
 751
 752                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 753                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
 754                         modest_mail_operation_cancel (pending_ops->data);
 755                 }
 756                 g_object_unref (G_OBJECT (pending_ops->data));
 757                 tmp_list = pending_ops;
 758                 pending_ops = g_slist_next (pending_ops);
 759                 g_slist_free_1 (tmp_list);
 760         }
 761 }
 762
 763
 764
 765 static gboolean
 766 on_window_destroy (ModestWindow *window,
 767                    GdkEvent *event,
 768                    ModestWindowMgr *self)
 769 {
 770         gint dialog_response = GTK_RESPONSE_NONE;
 771         gboolean no_propagate = FALSE;
 772
 773         /* Specific stuff first */
 774         if (MODEST_IS_MAIN_WINDOW (window)) {
 775                 ModestWindowMgrPrivate *priv;
 776                 priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 777
 778                 /* If more than one window already opened */
 779                 if (g_list_length (priv->window_list) > 1) {
 780
 781                         /* Present the window if it's not visible now */
 782                         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 783                                 gtk_window_present (GTK_WINDOW (window));
 784                         /* Create the confirmation dialog MSG-NOT308 */
 785                         dialog_response = modest_platform_run_confirmation_dialog (
 786                                         GTK_WINDOW (window), _("emev_nc_close_windows"));
 787
 788                         /* If the user wants to close all the windows */
 789                         if ((dialog_response == GTK_RESPONSE_OK)
 790                             || (dialog_response == GTK_RESPONSE_ACCEPT)
 791                             || (dialog_response == GTK_RESPONSE_YES)) {
 792                                         GList *iter = priv->window_list;
 793                                         do {
 794                                                 if (iter->data != window) {
 795                                                         GList *tmp = iter->next;
 796                                                         on_window_destroy (MODEST_WINDOW (iter->data),
 797                                                                         event,
 798                                                                         self);
 799                                                         iter = tmp;
 800                                                 } else {
 801                                                         iter = g_list_next (iter);
 802                                                 }
 803                                         } while (iter);
 804                         } else {
 805                                 return TRUE;
 806                         }
 807                 }
 808
 809                 /* Do not unregister it, just hide */
 810                 gtk_widget_hide_all (GTK_WIDGET (window));
 811
 812                 /* Cancel pending operations */
 813                 cancel_window_operations (window);
 814
 815                 /* Fake the window system, make it think that there is no window */
 816                 if (modest_window_mgr_num_windows (self) == 0)
 817                         g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 818
 819                 no_propagate = TRUE;
 820         }
 821         else {
 822                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 823                         gboolean sent = FALSE;
 824                         gint response = GTK_RESPONSE_ACCEPT;
 825                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 826                         /* Save currently edited message to Drafts if it was not sent */
 827                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 828
 829                                 /* Raise the window if it's minimized */
 830                                 if (!gtk_window_has_toplevel_focus (GTK_WINDOW (window)))
 831                                         gtk_window_present (GTK_WINDOW (window));
 832
 833                                 response =
 834                                         modest_platform_run_confirmation_dialog (GTK_WINDOW (window),
 835                                                                                  _("mcen_nc_no_email_message_modified_save_changes"));
 836                                 /* Save to drafts */
 837                                 if (response == GTK_RESPONSE_OK)
 838                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 839                                                 return TRUE;
 840                         }
 841                 }
 842                 /* Unregister window */
 843                 modest_window_mgr_unregister_window (self, window);
 844                 no_propagate = FALSE;
 845         }
 846
 847         return no_propagate;
 848 }
 849
 850 static void
 851 disconnect_msg_changed (gpointer key,
 852                         gpointer value,
 853                         gpointer user_data)
 854 {
 855         guint handler_id;
 856         handler_id = GPOINTER_TO_UINT(value);
 857
 858         if (key && G_IS_OBJECT(key))
 859                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
 860 }
 861
 862 void
 863 modest_window_mgr_unregister_window (ModestWindowMgr *self,
 864                                      ModestWindow *window)
 865 {
 866         GList *win;
 867         ModestWindowMgrPrivate *priv;
 868         gulong *tmp, handler_id;
 869
 870         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 871         g_return_if_fail (MODEST_IS_WINDOW (window));
 872
 873         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 874
 875         win = g_list_find (priv->window_list, window);
 876         if (!win) {
 877                 g_warning ("Trying to unregister a window that has not being registered yet");
 878                 return;
 879         }
 880
 881         /* If it's the main window unset it */
 882         if (priv->main_window == window) {
 883                 priv->main_window = NULL;
 884
 885                 /* Disconnect all emissions of msg-changed */
 886                 if (priv->viewer_handlers) {
 887                         g_hash_table_foreach (priv->viewer_handlers,
 888                                               disconnect_msg_changed,
 889                                               NULL);
 890                         g_hash_table_destroy (priv->viewer_handlers);
 891                         priv->viewer_handlers = NULL;
 892                 }
 893         }
 894
 895         /* Remove the viewer window handler from the hash table. The
 896            HashTable could not exist if the main window was closed
 897            when there were other windows remaining */
 898         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 899                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 900                 /* If the viewer was created without a main window
 901                    (for example when opening a message through D-Bus
 902                    the viewer handlers was not registered */
 903                 if (tmp) {
 904                         g_signal_handler_disconnect (window, *tmp);
 905                         g_hash_table_remove (priv->viewer_handlers, window);
 906                 }
 907         }
 908
 909         /* Save state */
 910         modest_window_save_state (window);
 911
 912         /* Remove from list & hash table */
 913         priv->window_list = g_list_remove_link (priv->window_list, win);
 914         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 915         handler_id = *tmp;
 916         g_hash_table_remove (priv->destroy_handlers, window);
 917
 918         /* cancel open and receive operations */
 919         cancel_window_operations (window);
 920
 921         /* Check if it's the topmost window, and remove the window from the stack.
 922          * This is needed for the cases there's no other topmost window that will
 923          * replace it in topmost handler.
 924          */
 925          if (window == priv->current_top)
 926                  priv->current_top = NULL;
 927
 928         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 929         if (priv->window_state_uids) {
 930 #ifdef MODEST_PLATFORM_MAEMO
 931                 priv->window_state_uids =
 932                         modest_signal_mgr_disconnect (priv->window_state_uids,
 933                                                       G_OBJECT (window),
 934                                                       "notify::is-topmost");
 935 #else
 936                 priv->window_state_uids =
 937                         modest_signal_mgr_disconnect (priv->window_state_uids,
 938                                                       G_OBJECT (window),
 939                                                       "window-state-event");
 940 #endif
 941         }
 942
 943         /* Disconnect the "delete-event" handler, we won't need it anymore */
 944         g_signal_handler_disconnect (window, handler_id);
 945
 946         /* Disconnect all the window signals */
 947         modest_window_disconnect_signals (window);
 948
 949         /* Destroy the window */
 950         gtk_widget_destroy (win->data);
 951
 952         /* If there are no more windows registered emit the signal */
 953         if (modest_window_mgr_num_windows (self) == 0)
 954                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
 955 }
 956
 957
 958
 959 void
 960 modest_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 961                                        gboolean on)
 962 {
 963         ModestWindowMgrPrivate *priv;
 964         GList *win = NULL;
 965         ModestConf *conf;
 966
 967         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
 968
 969         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
 970
 971         /* If there is no change do nothing */
 972         if (priv->fullscreen_mode == on)
 973                 return;
 974
 975         priv->fullscreen_mode = on;
 976
 977         conf = modest_runtime_get_conf ();
 978
 979         /* Update windows */
 980         win = priv->window_list;
 981         while (win) {
 982                 gboolean show;
 983                 const gchar *key = NULL;
 984
 985                 /* Getting this from gconf everytime is not that
 986                    expensive, we'll do it just a few times */
 987                 key = get_show_toolbar_key (G_TYPE_FROM_INSTANCE (win->data), on);
 988                 show = modest_conf_get_bool (conf, key, NULL);
 989
 990                 /* Set fullscreen/unfullscreen */
 991                 if (on)
 992                         gtk_window_fullscreen (GTK_WINDOW (win->data));
 993                 else
 994                         gtk_window_unfullscreen (GTK_WINDOW (win->data));
 995
 996                 /* Show/Hide toolbar */
 997                 modest_window_show_toolbar (MODEST_WINDOW (win->data), show);
 998
 999                 win = g_list_next (win);
1000         }
1001 }
1002
1003 gboolean
1004 modest_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
1005 {
1006         ModestWindowMgrPrivate *priv;
1007
1008         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1009
1010         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1011
1012         return priv->fullscreen_mode;
1013 }
1014
1015 void
1016 modest_window_mgr_show_toolbars (ModestWindowMgr *self,
1017                                  GType window_type,
1018                                  gboolean show_toolbars,
1019                                  gboolean fullscreen)
1020 {
1021         ModestWindowMgrPrivate *priv;
1022         ModestConf *conf;
1023         const gchar *key = NULL;
1024
1025         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1026
1027         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1028         conf = modest_runtime_get_conf ();
1029
1030         /* If nothing changes then return */
1031         key = get_show_toolbar_key (window_type, fullscreen);
1032         conf = modest_runtime_get_conf ();
1033         if (modest_conf_get_bool (conf, key, NULL) == show_toolbars)
1034                 return;
1035
1036         /* Save in conf */
1037         modest_conf_set_bool (conf, key, show_toolbars, NULL);
1038
1039         /* Apply now if the view mode is the right one */
1040         if ((fullscreen && priv->fullscreen_mode) ||
1041             (!fullscreen && !priv->fullscreen_mode)) {
1042
1043                 GList *win = priv->window_list;
1044
1045                 while (win) {
1046                         if (G_TYPE_FROM_INSTANCE (win->data) == window_type)
1047                                 modest_window_show_toolbar (MODEST_WINDOW (win->data),
1048                                                             show_toolbars);
1049                         win = g_list_next (win);
1050                 }
1051         }
1052 }
1053
1054 ModestWindow*
1055 modest_window_mgr_get_main_window (ModestWindowMgr *self, gboolean create)
1056 {
1057         ModestWindowMgrPrivate *priv;
1058
1059         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1060         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1061
1062         /* create the main window, if it hasn't been created yet */
1063         if (!priv->main_window && create) {
1064                 /* modest_window_mgr_register_window will set priv->main_window */
1065                 modest_window_mgr_register_window (self, modest_main_window_new ());
1066                 MODEST_DEBUG_BLOCK(
1067                         g_debug ("%s: created main window: %p\n", __FUNCTION__, priv->main_window);
1068                 );
1069         }
1070
1071         return priv->main_window;
1072 }
1073
1074
1075 gboolean
1076 modest_window_mgr_main_window_exists  (ModestWindowMgr *self)
1077 {
1078         ModestWindowMgrPrivate *priv;
1079
1080         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1081         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1082
1083         return priv->main_window != NULL;
1084 }
1085
1086
1087 GtkWindow *
1088 modest_window_mgr_get_modal (ModestWindowMgr *self)
1089 {
1090         ModestWindowMgrPrivate *priv;
1091
1092         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), NULL);
1093         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1094
1095         return g_queue_peek_head (priv->modal_windows);
1096 }
1097
1098
1099 void
1100 modest_window_mgr_set_modal (ModestWindowMgr *self,
1101                              GtkWindow *window)
1102 {
1103         GtkWindow *old_modal;
1104         ModestWindowMgrPrivate *priv;
1105
1106         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1107         g_return_if_fail (GTK_IS_WINDOW (window));
1108
1109         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1110         g_mutex_lock (priv->queue_lock);
1111         old_modal = g_queue_peek_head (priv->modal_windows);
1112         g_mutex_unlock (priv->queue_lock);
1113
1114         if (!old_modal) {
1115                 /* make us transient wrt the main window then */
1116                 if (priv->current_top && ((GtkWindow *) priv->current_top != window)) {
1117                         gtk_window_set_transient_for (window, GTK_WINDOW(priv->current_top));
1118                 } else {
1119                         ModestWindow *main_win = modest_window_mgr_get_main_window (self, FALSE);
1120                         if (GTK_WINDOW(main_win) != window) /* they should not be the same */
1121                                 gtk_window_set_transient_for (window, GTK_WINDOW(main_win));
1122                 }
1123                 gtk_window_set_modal (window, TRUE);
1124         } else {
1125                 /* un-modalize the old one; the one on top should be the
1126                  * modal one */
1127                 gtk_window_set_transient_for (window, GTK_WINDOW(old_modal));
1128                 gtk_window_set_modal (window, TRUE);
1129         }
1130
1131         /* this will be the new modal window */
1132         g_mutex_lock (priv->queue_lock);
1133         g_queue_push_head (priv->modal_windows, window);
1134         g_mutex_unlock (priv->queue_lock);
1135
1136         if (GTK_IS_DIALOG (window)) {
1137                 /* Note that response is not always enough because it
1138                    could be captured and removed easily by dialogs but
1139                    works for most of situations */
1140                 priv->modal_handler_uids =
1141                         modest_signal_mgr_connect (priv->modal_handler_uids,
1142                                                    G_OBJECT (window),
1143                                                    "response",
1144                                                    G_CALLBACK (on_modal_dialog_close),
1145                                                    self);
1146                 /* We need this as well because dialogs are often
1147                    destroyed with gtk_widget_destroy and this one will
1148                    prevent response from happening */
1149                 priv->modal_handler_uids =
1150                         modest_signal_mgr_connect (priv->modal_handler_uids,
1151                                                    G_OBJECT (window),
1152                                                    "destroy",
1153                                                    G_CALLBACK (on_modal_dialog_destroy),
1154                                                    self);
1155         } else {
1156                 priv->modal_handler_uids =
1157                         modest_signal_mgr_connect (priv->modal_handler_uids,
1158                                                    G_OBJECT (window),
1159                                                    "delete-event",
1160                                                    G_CALLBACK (on_modal_window_close),
1161                                                    self);
1162         }
1163         /* Destroy width parent */
1164         gtk_window_set_destroy_with_parent (window, TRUE);
1165 }
1166
1167
1168 static void
1169 on_nonhibernating_window_hide(GtkWidget *widget, gpointer user_data)
1170 {
1171         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1172         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1173
1174         /* Forget this window,
1175          * so hibernation will be allowed again if no windows are remembered: */
1176         priv->windows_that_prevent_hibernation =
1177                 g_slist_remove (priv->windows_that_prevent_hibernation, GTK_WINDOW(widget));
1178 }
1179
1180 static void
1181 on_nonhibernating_window_show(GtkWidget *widget, gpointer user_data)
1182 {
1183         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1184         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1185
1186         GtkWindow *window = GTK_WINDOW (widget);
1187
1188         priv->windows_that_prevent_hibernation =
1189                         g_slist_append (priv->windows_that_prevent_hibernation, window);
1190
1191         /* Allow hibernation again when the window has been hidden: */
1192         g_signal_connect (window, "hide",
1193                 G_CALLBACK (on_nonhibernating_window_hide), self);
1194 }
1195
1196 void
1197 modest_window_mgr_prevent_hibernation_while_window_is_shown (ModestWindowMgr *self,
1198                                                                   GtkWindow *window)
1199 {
1200         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1201
1202         if (GTK_WIDGET_VISIBLE(window)) {
1203                 on_nonhibernating_window_show (GTK_WIDGET (window), self);
1204         } else {
1205                 /* Wait for it to be shown: */
1206                 g_signal_connect (window, "show",
1207                         G_CALLBACK (on_nonhibernating_window_show), self);
1208         }
1209 }
1210
1211 gboolean
1212 modest_window_mgr_get_hibernation_is_prevented (ModestWindowMgr *self)
1213 {
1214         g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
1215
1216         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1217
1218         /* Prevent hibernation if any open windows are currently
1219          * preventing hibernation: */
1220         return (g_slist_length (priv->windows_that_prevent_hibernation) > 0);
1221 }
1222
1223
1224 void
1225 modest_window_mgr_save_state_for_all_windows (ModestWindowMgr *self)
1226 {
1227         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1228
1229         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1230
1231         /* Iterate over all windows */
1232         GList *win = priv->window_list;
1233         while (win) {
1234                 ModestWindow *window = MODEST_WINDOW (win->data);
1235                 if (window) {
1236                         /* This calls the vfunc,
1237                          * so each window can do its own thing: */
1238                         modest_window_save_state (window);
1239                 }
1240
1241                 win = g_list_next (win);
1242         }
1243 }
1244
1245 static gboolean
1246 idle_top_modal (gpointer data)
1247 {
1248         ModestWindowMgr *self = MODEST_WINDOW_MGR (data);
1249         ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1250         GtkWindow *topmost;
1251
1252         /* Get the top modal */
1253         g_mutex_lock (priv->queue_lock);
1254         topmost = (GtkWindow *) g_queue_peek_head (priv->modal_windows);
1255         g_mutex_unlock (priv->queue_lock);
1256
1257         /* Show it */
1258         if (topmost) {
1259                 gdk_threads_enter ();
1260                 gtk_window_present (topmost);
1261                 gdk_threads_leave ();
1262         }
1263
1264         return FALSE;
1265 }
1266
1267 static void
1268 remove_modal_from_queue (GtkWidget *widget,
1269                          ModestWindowMgr *self)
1270 {
1271         ModestWindowMgrPrivate *priv;
1272         GList *item = NULL;
1273
1274         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1275
1276         /* Remove from queue. We don't use remove, because we want to
1277            exit if the widget does not belong to the queue */
1278         g_mutex_lock (priv->queue_lock);
1279         item = g_queue_find (priv->modal_windows, widget);
1280         if (!item) {
1281                 g_warning ("Trying to remove a modal window that is not registered");
1282                 g_mutex_unlock (priv->queue_lock);
1283                 return;
1284         }
1285         g_queue_unlink (priv->modal_windows, item);
1286         g_mutex_unlock (priv->queue_lock);
1287
1288         /* Disconnect handler */
1289         priv->modal_handler_uids =
1290                 modest_signal_mgr_disconnect (priv->modal_handler_uids,
1291                                               G_OBJECT (widget),
1292                                               GTK_IS_DIALOG (widget) ?
1293                                               "response" :
1294                                               "delete-event");
1295         if (GTK_IS_DIALOG (widget))
1296                 priv->modal_handler_uids =
1297                         modest_signal_mgr_disconnect (priv->modal_handler_uids,
1298                                                       G_OBJECT (widget),
1299                                                       "destroy");
1300
1301         /* Schedule the next one for being shown */
1302         g_idle_add (idle_top_modal, self);
1303 }
1304
1305 static gboolean
1306 on_modal_window_close (GtkWidget *widget,
1307                        GdkEvent *event,
1308                        gpointer user_data)
1309 {
1310         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1311
1312         /* Remove modal window from queue */
1313         remove_modal_from_queue (widget, self);
1314
1315         /* Continue */
1316         return FALSE;
1317 }
1318
1319 static void
1320 on_modal_dialog_close (GtkDialog *dialog,
1321                        gint arg1,
1322                        gpointer user_data)
1323 {
1324         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1325
1326         /* Remove modal window from queue. Note that if "destroy"
1327            signal was invoked before the response the window could be
1328            already deleted */
1329         remove_modal_from_queue (GTK_WIDGET (dialog), self);
1330 }
1331
1332 static void
1333 on_modal_dialog_destroy (GtkObject *object,
1334                          gpointer   user_data)
1335 {
1336         ModestWindowMgr *self = MODEST_WINDOW_MGR (user_data);
1337
1338         /* Remove modal window from queue */
1339         remove_modal_from_queue (GTK_WIDGET (object), self);
1340 }
1341
1342 gint
1343 modest_window_mgr_num_windows (ModestWindowMgr *self)
1344 {
1345         ModestWindowMgrPrivate *priv;
1346         gint num_windows = 0;
1347
1348         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
1349
1350         priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
1351
1352         if (priv->window_list)
1353                 num_windows = g_list_length (priv->window_list);
1354
1355         /* Do not take into account the main window if it was hidden */
1356         if (priv->main_window && !GTK_WIDGET_VISIBLE (priv->main_window))
1357                 num_windows--;
1358
1359         return num_windows + priv->banner_counter;
1360 }
1361
1362 GtkWidget *
1363 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
1364 {
1365         GtkWidget *result;
1366         ModestWindowMgrPrivate *priv;
1367
1368         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1369
1370         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1371
1372         if (priv->cached_editor) {
1373                 result = priv->cached_editor;
1374                 priv->cached_editor = NULL;
1375                 load_new_editor (self);
1376         } else {
1377                 result = g_object_new (MODEST_TYPE_MSG_EDIT_WINDOW, NULL);
1378         }
1379
1380         return result;
1381 }
1382
1383 GtkWidget *
1384 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
1385 {
1386         GtkWidget *result;
1387         ModestWindowMgrPrivate *priv;
1388
1389         g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
1390
1391         priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
1392
1393         if (priv->cached_view) {
1394                 result = priv->cached_view;
1395                 priv->cached_view = NULL;
1396                 load_new_view (self);
1397         } else {
1398                 result = g_object_new (MODEST_TYPE_MSG_VIEW_WINDOW, NULL);
1399         }
1400
1401         return result;
1402 }
1403
1404 void
1405 modest_window_mgr_register_banner (ModestWindowMgr *self)
1406 {
1407         ModestWindowMgrPrivate *priv;
1408
1409         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1410         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1411
1412         priv->banner_counter++;
1413
1414 }
1415
1416 void
1417 modest_window_mgr_unregister_banner (ModestWindowMgr *self)
1418 {
1419         ModestWindowMgrPrivate *priv;
1420
1421         g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
1422         priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
1423
1424         priv->banner_counter--;
1425         if (modest_window_mgr_num_windows (self) == 0)
1426                 g_signal_emit (self, signals[WINDOW_LIST_EMPTY_SIGNAL], 0);
1427 }