e17a2e6f4aba011e79c956095a7924660c0fb2ff
[modest] / src / hildon2 / modest-hildon2-window-mgr.c
1 /* Copyright (c) 2008, Nokia Corporation
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  * * Redistributions of source code must retain the above copyright
9  *   notice, this list of conditions and the following disclaimer.
10  * * Redistributions in binary form must reproduce the above copyright
11  *   notice, this list of conditions and the following disclaimer in the
12  *   documentation and/or other materials provided with the distribution.
13  * * Neither the name of the Nokia Corporation nor the names of its
14  *   contributors may be used to endorse or promote products derived from
15  *   this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29
30 #include <string.h>
31 #include "modest-hildon2-window-mgr.h"
32 #include "modest-msg-edit-window.h"
33 #include "modest-main-window.h"
34 #include "modest-conf.h"
35 #include "modest-defs.h"
36 #include "modest-signal-mgr.h"
37 #include "modest-runtime.h"
38 #include "modest-platform.h"
39 #include "modest-ui-actions.h"
40 #include "modest-debug.h"
41 #include "modest-tny-folder.h"
42 #include <hildon/hildon.h>
43
44 /* 'private'/'protected' functions */
45 static void modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass);
46 static void modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj);
47 static void modest_hildon2_window_mgr_finalize   (GObject *obj);
48
49 static gboolean on_window_destroy        (ModestWindow *window,
50                                           GdkEvent *event,
51                                           ModestHildon2WindowMgr *self);
52
53 static gboolean modest_hildon2_window_mgr_register_window (ModestWindowMgr *self, 
54                                                            ModestWindow *window,
55                                                            ModestWindow *parent);
56 static void modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self, 
57                                                          ModestWindow *window);
58 static void modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
59                                                            gboolean on);
60 static gboolean modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self);
61 static void modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
62                                                      GType window_type,
63                                                      gboolean show_toolbars,
64                                                      gboolean fullscreen);
65 static ModestWindow* modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show);
66 static GtkWindow *modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self);
67 static void modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self, 
68                                                  GtkWindow *window,
69                                                  GtkWindow *parent);
70 static gboolean modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, 
71                                                                   TnyHeader *header,
72                                                                   ModestWindow **win);
73 static GList *modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self);
74 static gboolean modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self);
75 static gboolean window_can_close (ModestWindow *window);
76 static gboolean window_has_modals (ModestWindow *window);
77
78 typedef struct _ModestHildon2WindowMgrPrivate ModestHildon2WindowMgrPrivate;
79 struct _ModestHildon2WindowMgrPrivate {
80         GList        *window_list;
81         GMutex       *queue_lock;
82         GQueue       *modal_windows;
83         
84         gboolean     fullscreen_mode;
85         
86         GHashTable   *destroy_handlers;
87         GHashTable   *viewer_handlers;
88         GSList       *window_state_uids;
89         
90         guint        closing_time;
91
92         GSList       *modal_handler_uids;
93         ModestWindow *current_top;
94 };
95 #define MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
96                                                                                    MODEST_TYPE_HILDON2_WINDOW_MGR, \
97                                                                                    ModestHildon2WindowMgrPrivate))
98 /* globals */
99 static GObjectClass *parent_class = NULL;
100
101 GType
102 modest_hildon2_window_mgr_get_type (void)
103 {
104         static GType my_type = 0;
105         if (!my_type) {
106                 static const GTypeInfo my_info = {
107                         sizeof(ModestHildon2WindowMgrClass),
108                         NULL,           /* base init */
109                         NULL,           /* base finalize */
110                         (GClassInitFunc) modest_hildon2_window_mgr_class_init,
111                         NULL,           /* class finalize */
112                         NULL,           /* class data */
113                         sizeof(ModestHildon2WindowMgr),
114                         1,              /* n_preallocs */
115                         (GInstanceInitFunc) modest_hildon2_window_mgr_instance_init,
116                         NULL
117                 };
118                 my_type = g_type_register_static (MODEST_TYPE_WINDOW_MGR,
119                                                   "ModestHildon2WindowMgr",
120                                                   &my_info, 0);
121         }
122         return my_type;
123 }
124
125 static void
126 modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass)
127 {
128         GObjectClass *gobject_class;
129         ModestWindowMgrClass *mgr_class;
130
131         gobject_class = (GObjectClass*) klass;
132         mgr_class = (ModestWindowMgrClass *) klass;
133
134         parent_class            = g_type_class_peek_parent (klass);
135         gobject_class->finalize = modest_hildon2_window_mgr_finalize;
136         mgr_class->register_window = modest_hildon2_window_mgr_register_window;
137         mgr_class->unregister_window = modest_hildon2_window_mgr_unregister_window;
138         mgr_class->set_fullscreen_mode = modest_hildon2_window_mgr_set_fullscreen_mode;
139         mgr_class->get_fullscreen_mode = modest_hildon2_window_mgr_get_fullscreen_mode;
140         mgr_class->show_toolbars = modest_hildon2_window_mgr_show_toolbars;
141         mgr_class->get_main_window = modest_hildon2_window_mgr_get_main_window;
142         mgr_class->get_modal = modest_hildon2_window_mgr_get_modal;
143         mgr_class->set_modal = modest_hildon2_window_mgr_set_modal;
144         mgr_class->find_registered_header = modest_hildon2_window_mgr_find_registered_header;
145         mgr_class->get_window_list = modest_hildon2_window_mgr_get_window_list;
146         mgr_class->close_all_windows = modest_hildon2_window_mgr_close_all_windows;
147
148         g_type_class_add_private (gobject_class, sizeof(ModestHildon2WindowMgrPrivate));
149
150 }
151
152 static void
153 modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj)
154 {
155         ModestHildon2WindowMgrPrivate *priv;
156
157         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
158         priv->window_list = NULL;
159         priv->fullscreen_mode = FALSE;
160         priv->current_top = NULL;
161         priv->window_state_uids = NULL;
162
163         priv->modal_windows = g_queue_new ();
164         priv->queue_lock = g_mutex_new ();
165         
166         /* Could not initialize it from gconf, singletons are not
167            ready yet */
168         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);   
169         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
170
171         priv->closing_time = 0;
172
173         priv->modal_handler_uids = NULL;
174 }
175
176 static void
177 modest_hildon2_window_mgr_finalize (GObject *obj)
178 {
179         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
180
181         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
182         priv->window_state_uids = NULL;
183
184         if (priv->window_list) {
185                 GList *iter = priv->window_list;
186                 /* unregister pending windows */
187                 while (iter) {
188                         ModestWindow *window = (ModestWindow *) iter->data;
189                         iter = g_list_next (iter);
190                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj), window);
191                 }
192                 g_list_free (priv->window_list);
193                 priv->window_list = NULL;
194         }
195
196         /* Free the hash table with the handlers */
197         if (priv->destroy_handlers) {
198                 g_hash_table_destroy (priv->destroy_handlers);
199                 priv->destroy_handlers = NULL;
200         }
201
202         if (priv->viewer_handlers) {
203                 g_hash_table_destroy (priv->viewer_handlers);
204                 priv->viewer_handlers = NULL;
205         }
206
207         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
208         priv->modal_handler_uids = NULL;
209
210         if (priv->modal_windows) {
211                 g_mutex_lock (priv->queue_lock);
212                 g_queue_free (priv->modal_windows);
213                 priv->modal_windows = NULL;
214                 g_mutex_unlock (priv->queue_lock);
215         }
216         g_mutex_free (priv->queue_lock);
217         
218         /* Do not unref priv->main_window because it does not hold a
219            new reference */
220
221         
222         G_OBJECT_CLASS(parent_class)->finalize (obj);
223 }
224
225 ModestWindowMgr*
226 modest_hildon2_window_mgr_new (void)
227 {
228         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_HILDON2_WINDOW_MGR, NULL));
229 }
230
231 static gboolean
232 modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self)
233 {
234         gboolean ret_value = FALSE;
235         GtkWidget *window;
236         gboolean failed = FALSE;
237         HildonWindowStack *stack;
238
239         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
240
241         stack = hildon_window_stack_get_default ();
242
243         while ((window = hildon_window_stack_peek (stack)) != NULL) {
244                 g_signal_emit_by_name (window, "delete-event", NULL, &ret_value);
245                 if (ret_value == TRUE) {
246                         failed = TRUE;
247                         break;
248                 }
249         }
250
251         return !failed;
252 }
253
254 static gint
255 compare_msguids (ModestWindow *win,
256                  const gchar *uid)
257 {
258         const gchar *msg_uid;
259
260         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
261                 return 1;
262
263         /* Get message uid from msg window */
264         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
265                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
266                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
267                         return 0;
268         } else {
269                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
270         }
271         
272         if (msg_uid && uid &&!strcmp (msg_uid, uid))
273                 return 0;
274         else
275                 return 1;
276 }
277
278 static gboolean
279 modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
280                                                   ModestWindow **win)
281 {
282         ModestHildon2WindowMgrPrivate *priv = NULL;
283         gchar* uid = NULL;
284         gboolean has_header, has_window = FALSE;
285         GList *item = NULL;
286
287         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
288         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
289         
290         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
291
292         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_header (self, header, win);
293         
294         uid = modest_tny_folder_get_header_unique_id (header);
295         
296         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
297         if (item) {
298                 has_window = TRUE;
299                 if (win) {
300                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) && 
301                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
302                                 g_debug ("not a valid window!");
303                         else {
304                                 g_debug ("found a window");
305                                 *win = MODEST_WINDOW (item->data);
306                         }
307                 }
308         }
309         g_free (uid);
310         
311         return has_header || has_window;
312 }
313
314 static GList *
315 modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self)
316 {
317         ModestHildon2WindowMgrPrivate *priv;
318
319         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
320         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
321
322         return g_list_copy (priv->window_list);
323 }
324
325 static gboolean
326 modest_hildon2_window_mgr_register_window (ModestWindowMgr *self, 
327                                            ModestWindow *window,
328                                            ModestWindow *parent)
329 {
330         GList *win;
331         ModestHildon2WindowMgrPrivate *priv;
332         gint *handler_id;
333         ModestWindow *main_window;
334         HildonProgram *program;
335         GtkWidget *current_top;
336         HildonWindowStack *stack;
337         gboolean nested_msg = FALSE;
338
339         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
340         g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
341
342         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
343
344         program = hildon_program_get_instance ();
345         win = g_list_find (priv->window_list, window);
346         if (win) {
347                 /* this is for the case we want to register the window and it was already
348                  * registered. We leave silently, telling the operation was succesful.
349                  */
350                 gtk_window_present (GTK_WINDOW (win));
351                 return TRUE;
352         }
353
354         stack = hildon_window_stack_get_default ();
355
356         if (!MODEST_WINDOW_MGR_CLASS (parent_class)->register_window (self, window, parent))
357                 goto fail;
358
359         /* Add to list. Keep a reference to the window */
360         g_object_ref (window);
361         priv->window_list = g_list_prepend (priv->window_list, window);
362
363         current_top = hildon_window_stack_peek (stack);
364         nested_msg = MODEST_IS_MSG_VIEW_WINDOW (window) && 
365                 MODEST_IS_MSG_VIEW_WINDOW (parent);
366
367         /* Close views if they're being shown. Nevertheless we must
368            allow nested messages */
369         if (!nested_msg &&
370             (MODEST_IS_MSG_EDIT_WINDOW (current_top) ||
371              MODEST_IS_MSG_VIEW_WINDOW (current_top))) {
372                 gboolean retval;
373
374                 /* If the current view has modal dialogs then
375                    we fail to register the new view */
376                 if ((current_top != NULL) &&
377                     window_has_modals (MODEST_WINDOW (current_top))) {
378                         /* Window on top but it has opened dialogs */
379                         goto fail;
380                 }
381
382                 /* Close the current view */
383                 g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
384                 if (retval == TRUE) {
385                         /* Cancelled closing top window, then we fail to register */
386                         goto fail;
387                 }
388         }
389
390         /* Listen to object destruction */
391         handler_id = g_malloc0 (sizeof (gint));
392         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
393         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
394
395         main_window = modest_window_mgr_get_main_window (self, FALSE);
396         /* If there is a msg view window, let the main window listen the msg-changed signal */
397         if (MODEST_IS_MSG_VIEW_WINDOW(window) && main_window) {
398                 gulong *handler;
399                 handler = g_malloc0 (sizeof (gulong));
400                 *handler = g_signal_connect (window, "msg-changed",
401                                              G_CALLBACK (modest_main_window_on_msg_view_window_msg_changed),
402                                              main_window);
403                 g_hash_table_insert (priv->viewer_handlers, window, handler);
404         }
405
406         /* Show toolbar always */
407         modest_window_show_toolbar (window, TRUE);
408
409         return TRUE;
410 fail:
411         /* Add to list. Keep a reference to the window */
412         priv->window_list = g_list_remove (priv->window_list, window);
413         g_object_unref (window);
414
415         current_top = hildon_window_stack_peek (stack);
416         if (current_top)
417                 gtk_window_present (GTK_WINDOW (current_top));
418         return FALSE;
419 }
420
421 static void
422 cancel_window_operations (ModestWindow *window)
423 {
424         GSList* pending_ops = NULL;
425
426         /* cancel open and receive operations */
427         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
428                                                                  G_OBJECT (window));
429         while (pending_ops != NULL) {
430                 ModestMailOperationTypeOperation type;
431                 GSList* tmp_list = NULL;
432
433                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
434                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE || type == MODEST_MAIL_OPERATION_TYPE_OPEN) {
435                         modest_mail_operation_cancel (pending_ops->data);
436                 }
437                 g_object_unref (G_OBJECT (pending_ops->data));
438                 tmp_list = pending_ops;
439                 pending_ops = g_slist_next (pending_ops);
440                 g_slist_free_1 (tmp_list);
441         }
442 }
443
444 static gboolean
445 window_has_modals (ModestWindow *window)
446 {
447         GList *toplevels;
448         GList *node;
449         gboolean retvalue = FALSE;
450
451         /* First we fetch all toplevels */
452         toplevels = gtk_window_list_toplevels ();
453         for (node = toplevels; node != NULL; node = g_list_next (node)) {
454                 if (GTK_IS_WINDOW (node->data) &&
455                     gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window)) {
456                         retvalue = TRUE;
457                         break;
458                 }
459         }
460         g_list_free (toplevels);
461         return retvalue;
462 }
463
464 static gboolean
465 window_can_close (ModestWindow *window)
466 {
467         /* An editor can be always closed no matter the dialogs it has 
468          * on top. */
469         if (MODEST_IS_MSG_EDIT_WINDOW (window))
470                 return TRUE;
471
472         return !window_has_modals (window);
473 }
474
475 static gboolean
476 on_window_destroy (ModestWindow *window, 
477                    GdkEvent *event,
478                    ModestHildon2WindowMgr *self)
479 {
480         gboolean no_propagate = FALSE;
481
482         if (!window_can_close (window)) {
483                 return TRUE;
484         }
485         /* Specific stuff first */
486         if (MODEST_IS_MAIN_WINDOW (window)) {
487                 ModestHildon2WindowMgrPrivate *priv;
488                 ModestMainWindowContentsStyle style;
489                 priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
490
491                 /* If we're on header view, then just go to folder view and don't close */
492                 style = modest_main_window_get_contents_style (MODEST_MAIN_WINDOW (window));
493                 if (style == MODEST_MAIN_WINDOW_CONTENTS_STYLE_HEADERS) {
494                         modest_main_window_set_contents_style (MODEST_MAIN_WINDOW (window),
495                                                                MODEST_MAIN_WINDOW_CONTENTS_STYLE_FOLDERS);
496                         return TRUE;
497                 }
498
499                 /* Do not unregister it, just hide */
500                 gtk_widget_hide_all (GTK_WIDGET (window));
501
502                 /* Cancel pending operations */
503                 cancel_window_operations (window);
504
505                 /* Fake the window system, make it think that there is no window */
506                 if (modest_window_mgr_num_windows (MODEST_WINDOW_MGR (self)) == 0)
507                         g_signal_emit_by_name (self, "window-list-empty");
508
509                 no_propagate = TRUE;
510         }
511         else {
512                 if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
513                         gboolean sent = FALSE;
514                         sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
515                         /* Save currently edited message to Drafts if it was not sent */
516                         if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
517
518                           if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
519                                   return TRUE;
520                         }
521                 }
522                 /* Unregister window */
523                 modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
524                 no_propagate = FALSE;
525         }
526
527         return no_propagate;
528 }
529
530 static void
531 disconnect_msg_changed (gpointer key, 
532                         gpointer value, 
533                         gpointer user_data)
534 {
535         guint handler_id;
536         handler_id = GPOINTER_TO_UINT(value);
537         
538         if (key && G_IS_OBJECT(key))
539                 g_signal_handler_disconnect (G_OBJECT (key), handler_id);
540 }
541
542 static void 
543 modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self, 
544                                              ModestWindow *window)
545 {
546         GList *win;
547         ModestHildon2WindowMgrPrivate *priv;
548         gulong *tmp, handler_id;
549
550         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
551         g_return_if_fail (MODEST_IS_WINDOW (window));
552
553         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
554
555         win = g_list_find (priv->window_list, window);
556         if (!win) {
557                 g_warning ("Trying to unregister a window that has not being registered yet");
558                 return;
559         }
560
561         /* If it's the main window unset it */
562         if (MODEST_IS_MAIN_WINDOW (window)) {
563                 modest_window_mgr_set_main_window (self, NULL);
564
565                 /* Disconnect all emissions of msg-changed */
566                 if (priv->viewer_handlers) {
567                         g_hash_table_foreach (priv->viewer_handlers, 
568                                               disconnect_msg_changed, 
569                                               NULL);
570                         g_hash_table_destroy (priv->viewer_handlers);
571                         priv->viewer_handlers = NULL;
572                 }
573         }
574
575         /* Remove the viewer window handler from the hash table. The
576            HashTable could not exist if the main window was closed
577            when there were other windows remaining */
578         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
579                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
580                 /* If the viewer was created without a main window
581                    (for example when opening a message through D-Bus
582                    the viewer handlers was not registered */
583                 if (tmp) {
584                         g_signal_handler_disconnect (window, *tmp);
585                         g_hash_table_remove (priv->viewer_handlers, window);
586                 }
587         }
588
589         /* Remove from list & hash table */
590         priv->window_list = g_list_remove_link (priv->window_list, win);
591         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
592         handler_id = *tmp;
593
594         g_hash_table_remove (priv->destroy_handlers, window);
595
596         /* cancel open and receive operations */
597         cancel_window_operations (window);
598
599         /* Check if it's the topmost window, and remove the window from the stack.
600          * This is needed for the cases there's no other topmost window that will
601          * replace it in topmost handler.
602          */
603          if (window == priv->current_top)
604                  priv->current_top = NULL;
605
606         /* Disconnect the "window-state-event" handler, we won't need it anymore */
607         if (priv->window_state_uids) {
608 #ifndef MODEST_TOOLKIT_GTK
609                 priv->window_state_uids = 
610                         modest_signal_mgr_disconnect (priv->window_state_uids, 
611                                                       G_OBJECT (window), 
612                                                       "notify::is-topmost");
613 #else
614                 priv->window_state_uids = 
615                         modest_signal_mgr_disconnect (priv->window_state_uids, 
616                                                       G_OBJECT (window), 
617                                                       "window-state-event");
618 #endif
619         }
620         
621         /* Disconnect the "delete-event" handler, we won't need it anymore */
622         g_signal_handler_disconnect (window, handler_id);
623
624         /* Destroy the window */
625         g_object_unref (win->data);
626         g_list_free (win);
627         
628         MODEST_WINDOW_MGR_CLASS (parent_class)->unregister_window (self, window);
629
630         /* If there are no more windows registered emit the signal */
631         if (modest_window_mgr_num_windows (self) == 0)
632                 g_signal_emit_by_name (self, "window-list-empty");
633 }
634
635
636
637 static void
638 modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
639                                                gboolean on)
640 {
641         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
642
643         return;
644 }
645
646 static gboolean
647 modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
648 {
649         return FALSE;
650 }
651
652 static void 
653 modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
654                                          GType window_type,
655                                          gboolean show_toolbars,
656                                          gboolean fullscreen)
657 {
658         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
659
660         return;
661 }
662
663 static ModestWindow*  
664 modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
665 {
666         ModestHildon2WindowMgrPrivate *priv;
667         ModestWindow *result;
668         
669         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
670         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
671         
672         result = MODEST_WINDOW_MGR_CLASS (parent_class)->get_main_window (self, FALSE);
673         /* create the main window, if it hasn't been created yet */
674         if (!result && show) {
675                 /* modest_window_mgr_register_window will set priv->main_window */
676                 result = modest_main_window_new ();
677                 /* We have to remove all other windows */
678                 if (!modest_window_mgr_close_all_windows (self)) {
679                         gtk_widget_destroy (GTK_WIDGET (result));
680                         return NULL;
681                 }
682                 if (!modest_window_mgr_register_window (self, result, NULL)) {
683                         gtk_widget_destroy (GTK_WIDGET (result));
684                         return NULL;
685                 }
686                 MODEST_DEBUG_BLOCK(
687                         g_debug ("%s: created main window: %p\n", __FUNCTION__, result);
688                 );
689         }
690         if (show) {
691                 gtk_widget_show_all (GTK_WIDGET (result));
692                 gtk_window_present (GTK_WINDOW (result));
693         }
694         
695         return result;
696 }
697
698
699 static GtkWindow *
700 modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self)
701 {
702         ModestHildon2WindowMgrPrivate *priv;
703         GList *toplevel_list;
704         GtkWidget *toplevel;
705         
706         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
707         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
708
709         toplevel = NULL;
710         toplevel_list = gtk_window_list_toplevels ();
711         while (toplevel_list) {
712                 if (gtk_window_is_active (toplevel_list->data)) {
713                         toplevel = toplevel_list->data;
714                         break;
715                 }
716                 toplevel_list = g_list_next (toplevel_list);
717         }
718
719         return NULL;
720 }
721
722
723 static void
724 modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self, 
725                                      GtkWindow *window,
726                                      GtkWindow *parent)
727 {
728         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
729         g_return_if_fail (GTK_IS_WINDOW (window));
730
731         gtk_window_set_modal (window, TRUE);
732         gtk_window_set_transient_for (window, parent);
733         gtk_window_set_destroy_with_parent (window, TRUE);
734 }
735