git.maemo.org Git - modest/blob - src/hildon2/modest-hildon2-window-mgr.c

   1 /* Copyright (c) 2008, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <string.h>
  31 #include <hildon/hildon.h>
  32 #include "modest-hildon2-window.h"
  33 #include "modest-hildon2-window-mgr.h"
  34 #include "modest-msg-edit-window.h"
  35 #include "modest-mailboxes-window.h"
  36 #include "modest-header-window.h"
  37 #include "modest-main-window.h"
  38 #include "modest-conf.h"
  39 #include "modest-defs.h"
  40 #include "modest-signal-mgr.h"
  41 #include "modest-runtime.h"
  42 #include "modest-platform.h"
  43 #include "modest-ui-actions.h"
  44 #include "modest-debug.h"
  45 #include "modest-tny-folder.h"
  46 #include "modest-folder-window.h"
  47 #include "modest-accounts-window.h"
  48 #include "modest-maemo-utils.h"
  49 #include "modest-utils.h"
  50 #include "modest-tny-msg.h"
  51 #include "modest-tny-account.h"
  52 #include <tny-merge-folder.h>
  53
  54 /* 'private'/'protected' functions */
  55 static void modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass);
  56 static void modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj);
  57 static void modest_hildon2_window_mgr_finalize   (GObject *obj);
  58
  59 static gboolean on_window_destroy        (ModestWindow *window,
  60                                           GdkEvent *event,
  61                                           ModestHildon2WindowMgr *self);
  62
  63 static gboolean modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
  64                                                            ModestWindow *window,
  65                                                            ModestWindow *parent);
  66 static void modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
  67                                                          ModestWindow *window);
  68 static void modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
  69                                                            gboolean on);
  70 static gboolean modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self);
  71 static void modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
  72                                                      GType window_type,
  73                                                      gboolean show_toolbars,
  74                                                      gboolean fullscreen);
  75 static ModestWindow* modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show);
  76 static GtkWindow *modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self);
  77 static void modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
  78                                                  GtkWindow *window,
  79                                                  GtkWindow *parent);
  80 static gboolean modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self,
  81                                                                   TnyHeader *header,
  82                                                                   ModestWindow **win);
  83 static gboolean modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self,
  84                                                                        const gchar *msg_uid,
  85                                                                        ModestWindow **win);
  86 static GList *modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self);
  87 static gboolean modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self);
  88 static gboolean window_has_modals (ModestWindow *window);
  89 static ModestWindow *modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self);
  90 static ModestWindow *modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self);
  91 static gboolean modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self);
  92 static void modest_hildon2_window_mgr_create_caches (ModestWindowMgr *self);
  93 static void osso_display_event_cb (osso_display_state_t state,
  94                                    gpointer data);
  95 static void on_account_removed (TnyAccountStore *acc_store,
  96                                 TnyAccount *account,
  97                                 gpointer user_data);
  98
  99 typedef struct _ModestHildon2WindowMgrPrivate ModestHildon2WindowMgrPrivate;
 100 struct _ModestHildon2WindowMgrPrivate {
 101         GList        *window_list;
 102         GMutex       *queue_lock;
 103         GQueue       *modal_windows;
 104
 105         gboolean     fullscreen_mode;
 106
 107         GHashTable   *destroy_handlers;
 108         GHashTable   *viewer_handlers;
 109         GSList       *window_state_uids;
 110
 111         guint        closing_time;
 112
 113         GSList       *modal_handler_uids;
 114         ModestWindow *current_top;
 115
 116         gulong        accounts_handler;
 117
 118         /* Display state */
 119         osso_display_state_t display_state;
 120 };
 121 #define MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 122                                                                                    MODEST_TYPE_HILDON2_WINDOW_MGR, \
 123                                                                                    ModestHildon2WindowMgrPrivate))
 124 /* globals */
 125 static GObjectClass *parent_class = NULL;
 126
 127 GType
 128 modest_hildon2_window_mgr_get_type (void)
 129 {
 130         static GType my_type = 0;
 131         if (!my_type) {
 132                 static const GTypeInfo my_info = {
 133                         sizeof(ModestHildon2WindowMgrClass),
 134                         NULL,           /* base init */
 135                         NULL,           /* base finalize */
 136                         (GClassInitFunc) modest_hildon2_window_mgr_class_init,
 137                         NULL,           /* class finalize */
 138                         NULL,           /* class data */
 139                         sizeof(ModestHildon2WindowMgr),
 140                         1,              /* n_preallocs */
 141                         (GInstanceInitFunc) modest_hildon2_window_mgr_instance_init,
 142                         NULL
 143                 };
 144                 my_type = g_type_register_static (MODEST_TYPE_WINDOW_MGR,
 145                                                   "ModestHildon2WindowMgr",
 146                                                   &my_info, 0);
 147         }
 148         return my_type;
 149 }
 150
 151 static void
 152 modest_hildon2_window_mgr_class_init (ModestHildon2WindowMgrClass *klass)
 153 {
 154         GObjectClass *gobject_class;
 155         ModestWindowMgrClass *mgr_class;
 156
 157         gobject_class = (GObjectClass*) klass;
 158         mgr_class = (ModestWindowMgrClass *) klass;
 159
 160         parent_class            = g_type_class_peek_parent (klass);
 161         gobject_class->finalize = modest_hildon2_window_mgr_finalize;
 162         mgr_class->register_window = modest_hildon2_window_mgr_register_window;
 163         mgr_class->unregister_window = modest_hildon2_window_mgr_unregister_window;
 164         mgr_class->set_fullscreen_mode = modest_hildon2_window_mgr_set_fullscreen_mode;
 165         mgr_class->get_fullscreen_mode = modest_hildon2_window_mgr_get_fullscreen_mode;
 166         mgr_class->show_toolbars = modest_hildon2_window_mgr_show_toolbars;
 167         mgr_class->get_main_window = modest_hildon2_window_mgr_get_main_window;
 168         mgr_class->get_modal = modest_hildon2_window_mgr_get_modal;
 169         mgr_class->set_modal = modest_hildon2_window_mgr_set_modal;
 170         mgr_class->find_registered_header = modest_hildon2_window_mgr_find_registered_header;
 171         mgr_class->find_registered_message_uid = modest_hildon2_window_mgr_find_registered_message_uid;
 172         mgr_class->get_window_list = modest_hildon2_window_mgr_get_window_list;
 173         mgr_class->close_all_windows = modest_hildon2_window_mgr_close_all_windows;
 174         mgr_class->show_initial_window = modest_hildon2_window_mgr_show_initial_window;
 175         mgr_class->get_current_top = modest_hildon2_window_mgr_get_current_top;
 176         mgr_class->screen_is_on = modest_hildon2_window_mgr_screen_is_on;
 177         mgr_class->create_caches = modest_hildon2_window_mgr_create_caches;
 178
 179         g_type_class_add_private (gobject_class, sizeof(ModestHildon2WindowMgrPrivate));
 180
 181 }
 182
 183 static void
 184 modest_hildon2_window_mgr_instance_init (ModestHildon2WindowMgr *obj)
 185 {
 186         ModestHildon2WindowMgrPrivate *priv;
 187
 188         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
 189         priv->window_list = NULL;
 190         priv->fullscreen_mode = FALSE;
 191         priv->window_state_uids = NULL;
 192
 193         priv->modal_windows = g_queue_new ();
 194         priv->queue_lock = g_mutex_new ();
 195
 196         /* Could not initialize it from gconf, singletons are not
 197            ready yet */
 198         priv->destroy_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 199         priv->viewer_handlers = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);
 200
 201         priv->closing_time = 0;
 202
 203         priv->modal_handler_uids = NULL;
 204         priv->display_state = OSSO_DISPLAY_ON;
 205
 206         /* Listen for changes in the screen, we don't want to show a
 207            led pattern when the display is on for example */
 208         osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
 209                                       osso_display_event_cb,
 210                                       obj);
 211
 212 }
 213
 214 static void
 215 modest_hildon2_window_mgr_finalize (GObject *obj)
 216 {
 217         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE(obj);
 218         ModestTnyAccountStore *acc_store;
 219
 220         modest_signal_mgr_disconnect_all_and_destroy (priv->window_state_uids);
 221         priv->window_state_uids = NULL;
 222
 223         osso_hw_set_display_event_cb (modest_maemo_utils_get_osso_context (),
 224                                       NULL, NULL);
 225
 226         acc_store = modest_runtime_get_account_store ();
 227         if (acc_store && g_signal_handler_is_connected (acc_store, priv->accounts_handler))
 228                 g_signal_handler_disconnect (acc_store, priv->accounts_handler);
 229
 230         if (priv->window_list) {
 231                 GList *iter = priv->window_list;
 232                 /* unregister pending windows */
 233                 while (iter) {
 234                         ModestWindow *window = (ModestWindow *) iter->data;
 235                         iter = g_list_next (iter);
 236                         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (obj), window);
 237                 }
 238                 g_list_free (priv->window_list);
 239                 priv->window_list = NULL;
 240         }
 241
 242         /* Free the hash table with the handlers */
 243         if (priv->destroy_handlers) {
 244                 g_hash_table_destroy (priv->destroy_handlers);
 245                 priv->destroy_handlers = NULL;
 246         }
 247
 248         if (priv->viewer_handlers) {
 249                 g_hash_table_destroy (priv->viewer_handlers);
 250                 priv->viewer_handlers = NULL;
 251         }
 252
 253         modest_signal_mgr_disconnect_all_and_destroy (priv->modal_handler_uids);
 254         priv->modal_handler_uids = NULL;
 255
 256         if (priv->modal_windows) {
 257                 g_mutex_lock (priv->queue_lock);
 258                 g_queue_free (priv->modal_windows);
 259                 priv->modal_windows = NULL;
 260                 g_mutex_unlock (priv->queue_lock);
 261         }
 262         g_mutex_free (priv->queue_lock);
 263
 264         /* Do not unref priv->main_window because it does not hold a
 265            new reference */
 266
 267         G_OBJECT_CLASS(parent_class)->finalize (obj);
 268 }
 269
 270 ModestWindowMgr*
 271 modest_hildon2_window_mgr_new (void)
 272 {
 273         return MODEST_WINDOW_MGR(g_object_new(MODEST_TYPE_HILDON2_WINDOW_MGR, NULL));
 274 }
 275
 276 static gboolean
 277 modest_hildon2_window_mgr_close_all_windows (ModestWindowMgr *self)
 278 {
 279         ModestHildon2WindowMgrPrivate *priv = NULL;
 280         gboolean ret_value = FALSE;
 281         GtkWidget *window;
 282         HildonWindowStack *stack;
 283         gboolean failed = FALSE;
 284
 285         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 286         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 287
 288         stack = hildon_window_stack_get_default ();
 289
 290         while ((window = hildon_window_stack_peek (stack)) != NULL) {
 291                 g_signal_emit_by_name (G_OBJECT (window), "delete-event", NULL, &ret_value);
 292                 if (ret_value == TRUE) {
 293                         failed = TRUE;
 294                         break;
 295                 }
 296         }
 297
 298         return !failed;
 299 }
 300
 301 static gint
 302 compare_msguids (ModestWindow *win,
 303                  const gchar *uid)
 304 {
 305         const gchar *msg_uid;
 306
 307         if ((!MODEST_IS_MSG_EDIT_WINDOW (win)) && (!MODEST_IS_MSG_VIEW_WINDOW (win)))
 308                 return 1;
 309
 310         /* Get message uid from msg window */
 311         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 312                 msg_uid = modest_msg_edit_window_get_message_uid (MODEST_MSG_EDIT_WINDOW (win));
 313                 if (msg_uid && uid &&!strcmp (msg_uid, uid))
 314                         return 0;
 315         } else {
 316                 msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
 317         }
 318
 319         if (msg_uid && uid &&!strcmp (msg_uid, uid))
 320                 return 0;
 321         else
 322                 return 1;
 323 }
 324
 325 static gint
 326 compare_headers (ModestWindow *win,
 327                  TnyHeader *header)
 328 {
 329         TnyHeader *my_header;
 330         gint result = 1;
 331
 332         if (!MODEST_IS_MSG_VIEW_WINDOW (win))
 333                 return 1;
 334
 335         /* Get message uid from msg window */
 336         my_header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 337         if (my_header) {
 338                 if (my_header == header)
 339                         result = 0;
 340                 g_object_unref (my_header);
 341         }
 342         return result;
 343 }
 344
 345
 346 static gboolean
 347 modest_hildon2_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
 348                                                   ModestWindow **win)
 349 {
 350         ModestHildon2WindowMgrPrivate *priv = NULL;
 351         gchar* uid = NULL;
 352         gboolean has_header, has_window = FALSE;
 353         GList *item = NULL;
 354
 355         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 356         g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
 357
 358         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 359
 360         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_header (self, header, win);
 361
 362         uid = modest_tny_folder_get_header_unique_id (header);
 363
 364         item = g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids);
 365         if (item) {
 366                 has_window = TRUE;
 367                 if (win) {
 368                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 369                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 370                                 g_debug ("not a valid window!");
 371                         else {
 372                                 g_debug ("found a window");
 373                                 *win = MODEST_WINDOW (item->data);
 374                         }
 375                 }
 376         }
 377         g_free (uid);
 378
 379         return has_header || has_window;
 380 }
 381
 382 static gboolean
 383 modest_hildon2_window_mgr_find_registered_message_uid (ModestWindowMgr *self, const gchar *msg_uid,
 384                                                        ModestWindow **win)
 385 {
 386         ModestHildon2WindowMgrPrivate *priv = NULL;
 387         gboolean has_header, has_window = FALSE;
 388         GList *item = NULL;
 389
 390         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 391         g_return_val_if_fail (msg_uid && msg_uid[0] != '\0', FALSE);
 392
 393         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 394
 395         has_header = MODEST_WINDOW_MGR_CLASS (parent_class)->find_registered_message_uid (self, msg_uid, win);
 396
 397         item = g_list_find_custom (priv->window_list, msg_uid, (GCompareFunc) compare_msguids);
 398         if (item) {
 399                 has_window = TRUE;
 400                 if (win) {
 401                         if ((!MODEST_IS_MSG_VIEW_WINDOW(item->data)) &&
 402                             (!MODEST_IS_MSG_EDIT_WINDOW (item->data)))
 403                                 g_debug ("not a valid window!");
 404                         else {
 405                                 g_debug ("found a window");
 406                                 *win = MODEST_WINDOW (item->data);
 407                         }
 408                 }
 409         }
 410
 411         return has_header || has_window;
 412 }
 413
 414 static GList *
 415 modest_hildon2_window_mgr_get_window_list (ModestWindowMgr *self)
 416 {
 417         ModestHildon2WindowMgrPrivate *priv;
 418
 419         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 420         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 421
 422         return g_list_copy (priv->window_list);
 423 }
 424
 425 static gboolean
 426 modest_hildon2_window_mgr_register_window (ModestWindowMgr *self,
 427                                            ModestWindow *window,
 428                                            ModestWindow *parent)
 429 {
 430         GList *win;
 431         ModestHildon2WindowMgrPrivate *priv;
 432         gint *handler_id;
 433         HildonWindowStack *stack;
 434         gboolean nested_msg = FALSE;
 435         ModestWindow *current_top;
 436         GtkWidget *modal;
 437
 438         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
 439         g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 440
 441         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 442
 443         /* Check that there is no active modal dialog */
 444         modal = (GtkWidget *) modest_window_mgr_get_modal (self);
 445         while (modal && GTK_IS_DIALOG (modal)) {
 446                 GtkWidget *parent;
 447
 448                 /* If it's a hildon note then don't try to close it as
 449                    this is the default behaviour of WM, delete event
 450                    is not issued for this kind of notes as we want the
 451                    user to always click on a button */
 452                 if (HILDON_IS_NOTE (modal)) {
 453                         gtk_window_present (GTK_WINDOW (modal));
 454                         return FALSE;
 455                 }
 456
 457                 /* Get the parent */
 458                 parent = (GtkWidget *) gtk_window_get_transient_for (GTK_WINDOW (modal));
 459
 460                 /* Try to close it */
 461                 gtk_dialog_response (GTK_DIALOG (modal), GTK_RESPONSE_DELETE_EVENT);
 462
 463                 /* Maybe the dialog was not closed, because a close
 464                    confirmation dialog for example. Then ignore the
 465                    register process */
 466                 if (GTK_IS_WINDOW (modal)) {
 467                         gtk_window_present (GTK_WINDOW (modal));
 468                         return FALSE;
 469                 }
 470
 471                 /* Get next modal */
 472                 modal = parent;
 473         }
 474
 475         stack = hildon_window_stack_get_default ();
 476         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 477
 478         win = g_list_find (priv->window_list, window);
 479         if (win) {
 480                 /* this is for the case we want to register the window
 481                    and it was already registered */
 482                 gtk_window_present (GTK_WINDOW (window));
 483                 return FALSE;
 484         }
 485
 486         /* Do not allow standalone editors or standalone viewers */
 487         if (!current_top &&
 488             (MODEST_IS_MSG_VIEW_WINDOW (window) ||
 489              MODEST_IS_MSG_EDIT_WINDOW (window)))
 490                 modest_window_mgr_show_initial_window (self);
 491
 492         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 493                 gchar *uid;
 494                 TnyHeader *header;
 495
 496                 uid = g_strdup (modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (window)));
 497
 498                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (window));
 499
 500                 if (uid == NULL)
 501                         uid = modest_tny_folder_get_header_unique_id (header);
 502                 /* Embedded messages do not have uid */
 503                 if (uid) {
 504                         if (g_list_find_custom (priv->window_list, uid, (GCompareFunc) compare_msguids)) {
 505                                 g_debug ("%s found another view window showing the same header", __FUNCTION__);
 506                                 g_free (uid);
 507                                 g_object_unref (header);
 508                                 return FALSE;
 509                         }
 510                         g_free (uid);
 511                 } else if (header) {
 512                         if (g_list_find_custom (priv->window_list, header, (GCompareFunc) compare_headers)) {
 513                                 g_debug ("%s found another view window showing the same header", __FUNCTION__);
 514                                 g_object_unref (header);
 515                                 return FALSE;
 516                         }
 517                 }
 518                 if (header)
 519                         g_object_unref (header);
 520         }
 521
 522         /* Do not go backwards */
 523         if ((MODEST_IS_MSG_VIEW_WINDOW (current_top) || MODEST_IS_MSG_EDIT_WINDOW (current_top)) &&
 524             (MODEST_IS_FOLDER_WINDOW (window) || MODEST_IS_ACCOUNTS_WINDOW (window) ||
 525              MODEST_IS_MAILBOXES_WINDOW (window))) {
 526                 gtk_window_present (GTK_WINDOW (window));
 527                 return FALSE;
 528         }
 529
 530         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_FOLDER_WINDOW (window)) {
 531                 gtk_window_present (GTK_WINDOW (window));
 532                 return FALSE;
 533         }
 534
 535         if (MODEST_IS_MAILBOXES_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 536                 gtk_window_present (GTK_WINDOW (window));
 537                 return FALSE;
 538         }
 539
 540         /* Mailboxes window can not replace folder windows */
 541         if (MODEST_IS_FOLDER_WINDOW (current_top) && MODEST_IS_MAILBOXES_WINDOW (window)) {
 542                 gtk_window_present (GTK_WINDOW (current_top));
 543                 return FALSE;
 544         }
 545
 546         /* Trying to open a folders window and a mailboxes window at
 547            the same time from the accounts window is not allowed */
 548         if (MODEST_IS_MAILBOXES_WINDOW (current_top) &&
 549             MODEST_IS_FOLDER_WINDOW (window) &&
 550             MODEST_IS_ACCOUNTS_WINDOW (parent)) {
 551                 gtk_window_present (GTK_WINDOW (window));
 552                 return FALSE;
 553         }
 554
 555         if (MODEST_IS_HEADER_WINDOW (current_top) && MODEST_IS_HEADER_WINDOW (window)) {
 556                 g_debug ("Trying to register a second header window is not allowed");
 557                 gtk_window_present (GTK_WINDOW (current_top));
 558                 return FALSE;
 559         }
 560
 561         if (!MODEST_WINDOW_MGR_CLASS (parent_class)->register_window (self, window, parent))
 562                 goto fail;
 563
 564         /* Add to list. Keep a reference to the window */
 565         g_object_ref (window);
 566         priv->window_list = g_list_prepend (priv->window_list, window);
 567
 568         nested_msg = MODEST_IS_MSG_VIEW_WINDOW (window) &&
 569                 MODEST_IS_MSG_VIEW_WINDOW (parent);
 570
 571         /* Close views if they're being shown. Nevertheless we must
 572            allow nested messages */
 573         if (!nested_msg &&
 574             (MODEST_IS_MSG_EDIT_WINDOW (current_top) ||
 575              MODEST_IS_MSG_VIEW_WINDOW (current_top))) {
 576                 gboolean retval;
 577
 578                 /* If the current view has modal dialogs then
 579                    we fail to register the new view */
 580                 if ((current_top != NULL) &&
 581                     window_has_modals (MODEST_WINDOW (current_top))) {
 582                         /* Window on top but it has opened dialogs */
 583                         goto fail;
 584                 }
 585
 586                 /* Close the current view */
 587                 g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
 588                 if (retval == TRUE) {
 589                         /* Cancelled closing top window, then we fail to register */
 590                         goto fail;
 591                 }
 592         }
 593
 594         /* Listen to object destruction */
 595         handler_id = g_malloc0 (sizeof (gint));
 596         *handler_id = g_signal_connect (window, "delete-event", G_CALLBACK (on_window_destroy), self);
 597         g_hash_table_insert (priv->destroy_handlers, window, handler_id);
 598
 599         /* Show toolbar always */
 600         modest_window_show_toolbar (window, TRUE);
 601
 602         return TRUE;
 603 fail:
 604         /* Add to list. Keep a reference to the window */
 605         priv->window_list = g_list_remove (priv->window_list, window);
 606         g_object_unref (window);
 607         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 608         if (current_top)
 609                 gtk_window_present (GTK_WINDOW (current_top));
 610         return FALSE;
 611 }
 612
 613 static void
 614 cancel_window_operations (ModestWindow *window)
 615 {
 616         GSList* pending_ops = NULL;
 617
 618         /* cancel open and receive operations */
 619         pending_ops = modest_mail_operation_queue_get_by_source (modest_runtime_get_mail_operation_queue (),
 620                                                                  G_OBJECT (window));
 621         while (pending_ops != NULL) {
 622                 ModestMailOperationTypeOperation type;
 623                 GSList* tmp_list = NULL;
 624
 625                 type = modest_mail_operation_get_type_operation (MODEST_MAIL_OPERATION (pending_ops->data));
 626                 if (type == MODEST_MAIL_OPERATION_TYPE_RECEIVE ||
 627                     type == MODEST_MAIL_OPERATION_TYPE_OPEN ||
 628                     type == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
 629                         modest_mail_operation_cancel (pending_ops->data);
 630                 }
 631                 g_object_unref (G_OBJECT (pending_ops->data));
 632                 tmp_list = pending_ops;
 633                 pending_ops = g_slist_next (pending_ops);
 634                 g_slist_free_1 (tmp_list);
 635         }
 636 }
 637
 638 static gboolean
 639 window_has_modals (ModestWindow *window)
 640 {
 641         GList *toplevels;
 642         GList *node;
 643         gboolean retvalue = FALSE;
 644
 645         /* First we fetch all toplevels */
 646         toplevels = gtk_window_list_toplevels ();
 647         for (node = toplevels; node != NULL; node = g_list_next (node)) {
 648                 if (GTK_IS_WINDOW (node->data) &&
 649                     gtk_window_get_transient_for (GTK_WINDOW (node->data)) == GTK_WINDOW (window) &&
 650                     GTK_WIDGET_VISIBLE (node->data)) {
 651                         retvalue = TRUE;
 652                         break;
 653                 }
 654         }
 655         g_list_free (toplevels);
 656         return retvalue;
 657 }
 658
 659 static gboolean
 660 on_window_destroy (ModestWindow *window,
 661                    GdkEvent *event,
 662                    ModestHildon2WindowMgr *self)
 663 {
 664         gboolean no_propagate = FALSE;
 665
 666         /* Do not close the window if it has modals on top */
 667         if (!MODEST_IS_MSG_EDIT_WINDOW (window) && window_has_modals (window))
 668                 return TRUE;
 669
 670         if (MODEST_IS_MSG_EDIT_WINDOW (window)) {
 671                 gboolean sent = FALSE;
 672                 sent = modest_msg_edit_window_get_sent (MODEST_MSG_EDIT_WINDOW (window));
 673                 /* Save currently edited message to Drafts if it was not sent */
 674                 if (!sent && modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (window))) {
 675                         ModestMsgEditWindow *edit_window;
 676                         MsgData *data;
 677
 678                         edit_window = MODEST_MSG_EDIT_WINDOW (window);
 679                         data = modest_msg_edit_window_get_msg_data (edit_window);
 680
 681                         if (data) {
 682                                 gint parts_count;
 683                                 guint64 parts_size, available_size, expected_size;
 684
 685                                 available_size = modest_utils_get_available_space (NULL);
 686                                 modest_msg_edit_window_get_parts_size (edit_window, &parts_count, &parts_size);
 687                                 expected_size = modest_tny_msg_estimate_size (data->plain_body,
 688                                                                               data->html_body,
 689                                                                               parts_count,
 690                                                                               parts_size);
 691                                 modest_msg_edit_window_free_msg_data (edit_window, data);
 692                                 data = NULL;
 693
 694                                 /* If there is not enough space
 695                                    available for saving the message
 696                                    then show an error and close the
 697                                    window without saving */
 698                                 if (expected_size >= available_size) {
 699                                         modest_platform_run_information_dialog (GTK_WINDOW (edit_window),
 700                                                                                 _("mail_in_ui_save_error"),
 701                                                                                 FALSE);
 702                                 } else {
 703                                         if (!modest_ui_actions_on_save_to_drafts (NULL, MODEST_MSG_EDIT_WINDOW (window)))
 704                                                 return TRUE;
 705                                 }
 706                         } else {
 707                                 g_warning ("Edit window without message data. This is probably a bug");
 708                         }
 709                 }
 710         }
 711
 712         /* Unregister window */
 713         modest_window_mgr_unregister_window (MODEST_WINDOW_MGR (self), window);
 714         no_propagate = FALSE;
 715
 716         return no_propagate;
 717 }
 718
 719 static void
 720 modest_hildon2_window_mgr_unregister_window (ModestWindowMgr *self,
 721                                              ModestWindow *window)
 722 {
 723         GList *win;
 724         ModestHildon2WindowMgrPrivate *priv;
 725         gulong *tmp, handler_id;
 726         guint num_windows;
 727
 728         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 729         g_return_if_fail (MODEST_IS_WINDOW (window));
 730
 731         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 732
 733         win = g_list_find (priv->window_list, window);
 734         if (!win) {
 735                 g_debug ("Trying to unregister a window that has not being registered yet");
 736                 return;
 737         }
 738
 739         /* Remove the viewer window handler from the hash table. The
 740            HashTable could not exist if the main window was closed
 741            when there were other windows remaining */
 742         if (MODEST_IS_MSG_VIEW_WINDOW (window) && priv->viewer_handlers) {
 743                 tmp = (gulong *) g_hash_table_lookup (priv->viewer_handlers, window);
 744                 /* If the viewer was created without a main window
 745                    (for example when opening a message through D-Bus
 746                    the viewer handlers was not registered */
 747                 if (tmp) {
 748                         g_signal_handler_disconnect (window, *tmp);
 749                         g_hash_table_remove (priv->viewer_handlers, window);
 750                 }
 751         }
 752
 753         /* Remove from list & hash table */
 754         priv->window_list = g_list_remove_link (priv->window_list, win);
 755         tmp = g_hash_table_lookup (priv->destroy_handlers, window);
 756         handler_id = *tmp;
 757
 758         g_hash_table_remove (priv->destroy_handlers, window);
 759
 760         /* cancel open and receive operations */
 761         cancel_window_operations (window);
 762
 763         /* Disconnect the "window-state-event" handler, we won't need it anymore */
 764         if (priv->window_state_uids) {
 765                 priv->window_state_uids =
 766                         modest_signal_mgr_disconnect (priv->window_state_uids,
 767                                                       G_OBJECT (window),
 768                                                       "notify::is-topmost");
 769         }
 770
 771         /* Disconnect the "delete-event" handler, we won't need it anymore */
 772         g_signal_handler_disconnect (window, handler_id);
 773
 774         /* Destroy the window */
 775         g_object_unref (win->data);
 776         g_list_free (win);
 777
 778         MODEST_WINDOW_MGR_CLASS (parent_class)->unregister_window (self, window);
 779
 780         /* We have to get the number of windows here in order not to
 781            emit the signal too many times */
 782         num_windows = modest_window_mgr_get_num_windows (self);
 783
 784         /* If there are no more windows registered emit the signal */
 785         if (num_windows == 0)
 786                 g_signal_emit_by_name (self, "window-list-empty");
 787 }
 788
 789
 790 static void
 791 modest_hildon2_window_mgr_set_fullscreen_mode (ModestWindowMgr *self,
 792                                                gboolean on)
 793 {
 794         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 795
 796         return;
 797 }
 798
 799 static gboolean
 800 modest_hildon2_window_mgr_get_fullscreen_mode (ModestWindowMgr *self)
 801 {
 802         return FALSE;
 803 }
 804
 805 static void
 806 modest_hildon2_window_mgr_show_toolbars (ModestWindowMgr *self,
 807                                          GType window_type,
 808                                          gboolean show_toolbars,
 809                                          gboolean fullscreen)
 810 {
 811         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 812
 813         return;
 814 }
 815
 816 static ModestWindow*
 817 modest_hildon2_window_mgr_get_main_window (ModestWindowMgr *self, gboolean show)
 818 {
 819         ModestHildon2WindowMgrPrivate *priv;
 820         ModestWindow *result;
 821
 822         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 823         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 824
 825         /* TODO: make this return NULL always */
 826
 827         result = MODEST_WINDOW_MGR_CLASS (parent_class)->get_main_window (self, FALSE);
 828         /* create the main window, if it hasn't been created yet */
 829         if (!result && show) {
 830                 /* modest_window_mgr_register_window will set priv->main_window */
 831                 result = modest_main_window_new ();
 832                 /* We have to remove all other windows */
 833                 if (!modest_window_mgr_close_all_windows (self)) {
 834                         gtk_widget_destroy (GTK_WIDGET (result));
 835                         return NULL;
 836                 }
 837                 if (!modest_window_mgr_register_window (self, result, NULL)) {
 838                         gtk_widget_destroy (GTK_WIDGET (result));
 839                         return NULL;
 840                 }
 841                 MODEST_DEBUG_BLOCK(
 842                         g_debug ("%s: created main window: %p\n", __FUNCTION__, result);
 843                 );
 844         }
 845         if (show) {
 846                 gtk_widget_show_all (GTK_WIDGET (result));
 847                 gtk_window_present (GTK_WINDOW (result));
 848         }
 849
 850         return result;
 851 }
 852
 853 static gint
 854 look_for_transient (gconstpointer a,
 855                     gconstpointer b)
 856 {
 857         GtkWindow *win, *child;
 858
 859         if (a == b)
 860                 return 1;
 861
 862         child = (GtkWindow *) b;
 863         win = (GtkWindow *) a;
 864
 865         if (gtk_window_get_transient_for (win) == child)
 866                 return 0;
 867         else
 868                 return 1;
 869 }
 870
 871 static GtkWindow *
 872 modest_hildon2_window_mgr_get_modal (ModestWindowMgr *self)
 873 {
 874         ModestHildon2WindowMgrPrivate *priv;
 875         GList *toplevel_list;
 876         GtkWidget *current_top, *toplevel;
 877         HildonWindowStack *stack;
 878
 879         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
 880         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 881
 882         /* Get current top */
 883         stack = hildon_window_stack_get_default ();
 884         current_top = hildon_window_stack_peek (stack);
 885         toplevel = current_top;
 886         toplevel_list = gtk_window_list_toplevels ();
 887
 888         while (toplevel) {
 889                 GList *parent_link;
 890
 891                 parent_link = g_list_find_custom (toplevel_list, toplevel, look_for_transient);
 892                 if (parent_link)
 893                         toplevel = (GtkWidget *) parent_link->data;
 894                 else
 895                         break;
 896         }
 897
 898         if (toplevel && GTK_WIDGET_VISIBLE (toplevel) && gtk_window_get_modal ((GtkWindow *) toplevel))
 899                 return (GtkWindow *) toplevel;
 900         else
 901                 return NULL;
 902 }
 903
 904
 905 static void
 906 modest_hildon2_window_mgr_set_modal (ModestWindowMgr *self,
 907                                      GtkWindow *window,
 908                                      GtkWindow *parent)
 909 {
 910         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
 911         g_return_if_fail (GTK_IS_WINDOW (window));
 912
 913         gtk_window_set_modal (window, TRUE);
 914         gtk_window_set_transient_for (window, parent);
 915         gtk_window_set_destroy_with_parent (window, TRUE);
 916 }
 917
 918 static gboolean
 919 on_idle_close_all_but_first (gpointer data)
 920 {
 921         gint num_windows, i;
 922         gboolean retval;
 923         HildonWindowStack *stack;
 924
 925         stack = hildon_window_stack_get_default ();
 926         g_return_val_if_fail (stack, FALSE);
 927
 928         num_windows = hildon_window_stack_size (stack);
 929
 930         for (i = 0; i < (num_windows - 1); i++) {
 931                 GtkWidget *current_top;
 932
 933                 /* Close window */
 934                 current_top = hildon_window_stack_peek (stack);
 935                 g_signal_emit_by_name (G_OBJECT (current_top), "delete-event", NULL, &retval);
 936         }
 937         return FALSE;
 938 }
 939
 940 static void
 941 on_account_removed (TnyAccountStore *acc_store,
 942                     TnyAccount *account,
 943                     gpointer user_data)
 944 {
 945         HildonWindowStack *stack;
 946         ModestWindow *current_top;
 947
 948         /* Ignore transport account removals */
 949         if (TNY_IS_TRANSPORT_ACCOUNT (account))
 950                 return;
 951
 952         stack = hildon_window_stack_get_default ();
 953         current_top = (ModestWindow *) hildon_window_stack_peek (stack);
 954
 955         /* if we're showing the header view of the currently deleted
 956            account, or the outbox and we deleted the last account,
 957            then close the window */
 958         if (current_top &&
 959             (MODEST_IS_HEADER_WINDOW (current_top) ||
 960              MODEST_IS_FOLDER_WINDOW (current_top))) {
 961                     const gchar *acc_name;
 962
 963                     acc_name = modest_tny_account_get_parent_modest_account_name_for_server_account (account);
 964
 965                     /* We emit it in an idle, because sometimes this
 966                        function could called when the account settings
 967                        dialog is about to close but still there. That
 968                        modal dialog would otherwise, prevent the
 969                        windows from being closed */
 970                     if (!strcmp (acc_name, modest_window_get_active_account (current_top)))
 971                             g_idle_add (on_idle_close_all_but_first, NULL);
 972         }
 973 }
 974
 975 static ModestWindow *
 976 modest_hildon2_window_mgr_show_initial_window (ModestWindowMgr *self)
 977 {
 978         ModestWindow *initial_window = NULL;
 979         ModestHildon2WindowMgrPrivate *priv;
 980
 981         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
 982
 983         /* Connect to the account store "account-removed" signal". We
 984            do this here because in the init the singletons are still
 985            not initialized properly */
 986         if (!g_signal_handler_is_connected (modest_runtime_get_account_store (),
 987                                             priv->accounts_handler)) {
 988                 priv->accounts_handler = g_signal_connect (modest_runtime_get_account_store (),
 989                                                            "account-removed",
 990                                                            G_CALLBACK (on_account_removed),
 991                                                            self);
 992         }
 993
 994         /* Return accounts window */
 995         initial_window = MODEST_WINDOW (modest_accounts_window_new ());
 996         modest_window_mgr_register_window (self, initial_window, NULL);
 997
 998         return initial_window;
 999 }
1000
1001
1002 static ModestWindow *
1003 modest_hildon2_window_mgr_get_current_top (ModestWindowMgr *self)
1004 {
1005         HildonWindowStack *stack;
1006         stack = hildon_window_stack_get_default ();
1007         return (ModestWindow *) hildon_window_stack_peek (stack);
1008 }
1009
1010 static gint
1011 find_folder_window (gconstpointer a,
1012                     gconstpointer b)
1013 {
1014         return (MODEST_IS_FOLDER_WINDOW (a)) ? 0 : 1;
1015 }
1016
1017 ModestWindow *
1018 modest_hildon2_window_mgr_get_folder_window (ModestHildon2WindowMgr *self)
1019 {
1020         ModestHildon2WindowMgrPrivate *priv;
1021         GList *window;
1022
1023         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), NULL);
1024
1025         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
1026
1027         window = g_list_find_custom (priv->window_list,
1028                                      NULL,
1029                                      find_folder_window);
1030
1031         return (window != NULL) ? MODEST_WINDOW (window->data) : NULL;
1032 }
1033
1034 static gboolean
1035 modest_hildon2_window_mgr_screen_is_on (ModestWindowMgr *self)
1036 {
1037         ModestHildon2WindowMgrPrivate *priv = NULL;
1038
1039         g_return_val_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self), FALSE);
1040
1041         priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (self);
1042
1043         return (priv->display_state == OSSO_DISPLAY_ON) ? TRUE : FALSE;
1044 }
1045
1046 static void
1047 modest_hildon2_window_mgr_create_caches (ModestWindowMgr *self)
1048 {
1049         g_return_if_fail (MODEST_IS_HILDON2_WINDOW_MGR (self));
1050
1051         modest_accounts_window_pre_create ();
1052
1053         MODEST_WINDOW_MGR_CLASS(parent_class)->create_caches (self);
1054
1055 }
1056
1057 static void
1058 osso_display_event_cb (osso_display_state_t state,
1059                        gpointer data)
1060 {
1061         ModestHildon2WindowMgrPrivate *priv = MODEST_HILDON2_WINDOW_MGR_GET_PRIVATE (data);
1062
1063         priv->display_state = state;
1064
1065         /* Stop blinking if the screen becomes on */
1066         if (priv->display_state == OSSO_DISPLAY_ON)
1067                 modest_platform_remove_new_mail_notifications (TRUE);
1068 }
1069