libempathy/empathy-chatroom-manager.c

   1 /*
   2  * Copyright (C) 2004-2007 Imendio AB
   3  * Copyright (C) 2007-2009 Collabora Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  18  * Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Xavier Claessens <xclaesse@gmail.com>
  21  *          Martyn Russell <martyn@imendio.com>
  22  */
  23
  24 #include "config.h"
  25
  26 #include <string.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29
  30 #include <libxml/parser.h>
  31 #include <libxml/tree.h>
  32
  33 #include <telepathy-glib/interfaces.h>
  34
  35 #include "empathy-tp-chat.h"
  36 #include "empathy-chatroom-manager.h"
  37 #include "empathy-account-manager.h"
  38 #include "empathy-utils.h"
  39
  40 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  41 #include "empathy-debug.h"
  42
  43 #define CHATROOMS_XML_FILENAME "chatrooms.xml"
  44 #define CHATROOMS_DTD_FILENAME "empathy-chatroom-manager.dtd"
  45 #define SAVE_TIMER 4
  46
  47 static EmpathyChatroomManager *chatroom_manager_singleton = NULL;
  48
  49 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatroomManager)
  50 typedef struct
  51 {
  52   GList *chatrooms;
  53   gchar *file;
  54   EmpathyAccountManager *account_manager;
  55   gulong account_manager_ready_handler_id;
  56   /* source id of the autosave timer */
  57   gint save_timer_id;
  58   gboolean ready;
  59 } EmpathyChatroomManagerPriv;
  60
  61 enum {
  62   CHATROOM_ADDED,
  63   CHATROOM_REMOVED,
  64   LAST_SIGNAL
  65 };
  66
  67 static guint signals[LAST_SIGNAL];
  68
  69 /* properties */
  70 enum
  71 {
  72   PROP_FILE = 1,
  73   PROP_READY,
  74   LAST_PROPERTY
  75 };
  76
  77 G_DEFINE_TYPE (EmpathyChatroomManager, empathy_chatroom_manager, G_TYPE_OBJECT);
  78
  79 /*
  80  * API to save/load and parse the chatrooms file.
  81  */
  82
  83 static gboolean
  84 chatroom_manager_file_save (EmpathyChatroomManager *manager)
  85 {
  86         EmpathyChatroomManagerPriv *priv;
  87         xmlDocPtr                  doc;
  88         xmlNodePtr                 root;
  89         GList                     *l;
  90
  91         priv = GET_PRIV (manager);
  92
  93         doc = xmlNewDoc ("1.0");
  94         root = xmlNewNode (NULL, "chatrooms");
  95         xmlDocSetRootElement (doc, root);
  96
  97         for (l = priv->chatrooms; l; l = l->next) {
  98                 EmpathyChatroom *chatroom;
  99                 xmlNodePtr       node;
 100                 const gchar     *account_id;
 101
 102                 chatroom = l->data;
 103
 104                 if (!empathy_chatroom_is_favorite (chatroom)) {
 105                         continue;
 106                 }
 107
 108                 account_id = empathy_account_get_unique_name (
 109                   empathy_chatroom_get_account (chatroom));
 110
 111                 node = xmlNewChild (root, NULL, "chatroom", NULL);
 112                 xmlNewTextChild (node, NULL, "name", empathy_chatroom_get_name (chatroom));
 113                 xmlNewTextChild (node, NULL, "room", empathy_chatroom_get_room (chatroom));
 114                 xmlNewTextChild (node, NULL, "account", account_id);
 115                 xmlNewTextChild (node, NULL, "auto_connect",
 116                         empathy_chatroom_get_auto_connect (chatroom) ? "yes" : "no");
 117         }
 118
 119         /* Make sure the XML is indented properly */
 120         xmlIndentTreeOutput = 1;
 121
 122         DEBUG ("Saving file:'%s'", priv->file);
 123         xmlSaveFormatFileEnc (priv->file, doc, "utf-8", 1);
 124         xmlFreeDoc (doc);
 125
 126         xmlCleanupParser ();
 127         xmlMemoryDump ();
 128
 129         return TRUE;
 130 }
 131
 132 static gboolean
 133 save_timeout (EmpathyChatroomManager *self)
 134 {
 135   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 136
 137   priv->save_timer_id = 0;
 138   chatroom_manager_file_save (self);
 139
 140   return FALSE;
 141 }
 142
 143 static void
 144 reset_save_timeout (EmpathyChatroomManager *self)
 145 {
 146   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 147
 148   if (priv->save_timer_id > 0)
 149     {
 150       g_source_remove (priv->save_timer_id);
 151     }
 152
 153   priv->save_timer_id = g_timeout_add_seconds (SAVE_TIMER,
 154       (GSourceFunc) save_timeout, self);
 155 }
 156
 157 static void
 158 chatroom_changed_cb (EmpathyChatroom *chatroom,
 159                      GParamSpec *spec,
 160                      EmpathyChatroomManager *self)
 161 {
 162   reset_save_timeout (self);
 163 }
 164
 165 static void
 166 add_chatroom (EmpathyChatroomManager *self,
 167               EmpathyChatroom *chatroom)
 168 {
 169   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 170
 171   priv->chatrooms = g_list_prepend (priv->chatrooms, g_object_ref (chatroom));
 172
 173   g_signal_connect (chatroom, "notify",
 174       G_CALLBACK (chatroom_changed_cb), self);
 175 }
 176
 177 static void
 178 chatroom_manager_parse_chatroom (EmpathyChatroomManager *manager,
 179                                  xmlNodePtr             node)
 180 {
 181         EmpathyChatroomManagerPriv *priv;
 182         EmpathyChatroom            *chatroom;
 183         EmpathyAccount             *account;
 184         xmlNodePtr                 child;
 185         gchar                     *str;
 186         gchar                     *name;
 187         gchar                     *room;
 188         gchar                     *account_id;
 189         gboolean                   auto_connect;
 190
 191         priv = GET_PRIV (manager);
 192
 193         /* default values. */
 194         name = NULL;
 195         room = NULL;
 196         auto_connect = TRUE;
 197         account_id = NULL;
 198
 199         for (child = node->children; child; child = child->next) {
 200                 gchar *tag;
 201
 202                 if (xmlNodeIsText (child)) {
 203                         continue;
 204                 }
 205
 206                 tag = (gchar *) child->name;
 207                 str = (gchar *) xmlNodeGetContent (child);
 208
 209                 if (strcmp (tag, "name") == 0) {
 210                         name = g_strdup (str);
 211                 }
 212                 else if (strcmp (tag, "room") == 0) {
 213                         room = g_strdup (str);
 214                 }
 215                 else if (strcmp (tag, "auto_connect") == 0) {
 216                         if (strcmp (str, "yes") == 0) {
 217                                 auto_connect = TRUE;
 218                         } else {
 219                                 auto_connect = FALSE;
 220                         }
 221                 }
 222                 else if (strcmp (tag, "account") == 0) {
 223                         account_id = g_strdup (str);
 224                 }
 225
 226                 xmlFree (str);
 227         }
 228
 229         account = empathy_account_manager_get_account (priv->account_manager,
 230                 account_id);
 231         if (!account) {
 232                 g_free (name);
 233                 g_free (room);
 234                 g_free (account_id);
 235                 return;
 236         }
 237
 238         chatroom = empathy_chatroom_new_full (account, room, name, auto_connect);
 239         empathy_chatroom_set_favorite (chatroom, TRUE);
 240         add_chatroom (manager, chatroom);
 241         g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 242
 243         g_free (name);
 244         g_free (room);
 245         g_free (account_id);
 246 }
 247
 248 static gboolean
 249 chatroom_manager_file_parse (EmpathyChatroomManager *manager,
 250                              const gchar           *filename)
 251 {
 252         EmpathyChatroomManagerPriv *priv;
 253         xmlParserCtxtPtr           ctxt;
 254         xmlDocPtr                  doc;
 255         xmlNodePtr                 chatrooms;
 256         xmlNodePtr                 node;
 257
 258         priv = GET_PRIV (manager);
 259
 260         DEBUG ("Attempting to parse file:'%s'...", filename);
 261
 262         ctxt = xmlNewParserCtxt ();
 263
 264         /* Parse and validate the file. */
 265         doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
 266         if (!doc) {
 267                 g_warning ("Failed to parse file:'%s'", filename);
 268                 xmlFreeParserCtxt (ctxt);
 269                 return FALSE;
 270         }
 271
 272         if (!empathy_xml_validate (doc, CHATROOMS_DTD_FILENAME)) {
 273                 g_warning ("Failed to validate file:'%s'", filename);
 274                 xmlFreeDoc (doc);
 275                 xmlFreeParserCtxt (ctxt);
 276                 return FALSE;
 277         }
 278
 279         /* The root node, chatrooms. */
 280         chatrooms = xmlDocGetRootElement (doc);
 281
 282         for (node = chatrooms->children; node; node = node->next) {
 283                 if (strcmp ((gchar *) node->name, "chatroom") == 0) {
 284                         chatroom_manager_parse_chatroom (manager, node);
 285                 }
 286         }
 287
 288         DEBUG ("Parsed %d chatrooms", g_list_length (priv->chatrooms));
 289
 290         xmlFreeDoc (doc);
 291         xmlFreeParserCtxt (ctxt);
 292
 293         return TRUE;
 294 }
 295
 296 static gboolean
 297 chatroom_manager_get_all (EmpathyChatroomManager *manager)
 298 {
 299         EmpathyChatroomManagerPriv *priv;
 300
 301         priv = GET_PRIV (manager);
 302
 303         /* read file in */
 304         if (g_file_test (priv->file, G_FILE_TEST_EXISTS) &&
 305             !chatroom_manager_file_parse (manager, priv->file)) {
 306                 return FALSE;
 307         }
 308
 309         priv->ready = TRUE;
 310         g_object_notify (G_OBJECT (manager), "ready");
 311
 312         return TRUE;
 313 }
 314
 315 static void
 316 empathy_chatroom_manager_get_property (GObject *object,
 317                                        guint property_id,
 318                                        GValue *value,
 319                                        GParamSpec *pspec)
 320 {
 321   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 322   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 323
 324   switch (property_id)
 325     {
 326       case PROP_FILE:
 327         g_value_set_string (value, priv->file);
 328         break;
 329       case PROP_READY:
 330         g_value_set_boolean (value, priv->ready);
 331         break;
 332       default:
 333         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 334         break;
 335     }
 336 }
 337
 338 static void
 339 empathy_chatroom_manager_set_property (GObject *object,
 340                                        guint property_id,
 341                                        const GValue *value,
 342                                        GParamSpec *pspec)
 343 {
 344   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 345   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 346
 347   switch (property_id)
 348     {
 349       case PROP_FILE:
 350         g_free (priv->file);
 351         priv->file = g_value_dup_string (value);
 352         break;
 353       default:
 354         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 355         break;
 356     }
 357 }
 358
 359 static void
 360 chatroom_manager_finalize (GObject *object)
 361 {
 362   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 363   EmpathyChatroomManagerPriv *priv;
 364   GList *l;
 365
 366   priv = GET_PRIV (object);
 367
 368   if (priv->account_manager_ready_handler_id > 0)
 369     {
 370       g_signal_handler_disconnect (priv->account_manager,
 371           priv->account_manager_ready_handler_id);
 372     }
 373
 374   g_object_unref (priv->account_manager);
 375
 376   if (priv->save_timer_id > 0)
 377     {
 378       /* have to save before destroy the object */
 379       g_source_remove (priv->save_timer_id);
 380       priv->save_timer_id = 0;
 381       chatroom_manager_file_save (self);
 382     }
 383
 384   for (l = priv->chatrooms; l != NULL; l = g_list_next (l))
 385     {
 386       EmpathyChatroom *chatroom = l->data;
 387
 388       g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 389           self);
 390
 391       g_object_unref (chatroom);
 392     }
 393
 394   g_list_free (priv->chatrooms);
 395   g_free (priv->file);
 396
 397   (G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->finalize) (object);
 398 }
 399
 400 static void
 401 account_manager_ready_cb (GObject *gobject,
 402                           GParamSpec *pspec,
 403                           gpointer user_data)
 404 {
 405   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (user_data);
 406   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 407
 408   chatroom_manager_get_all (self);
 409
 410   g_signal_handler_disconnect (gobject,
 411       priv->account_manager_ready_handler_id);
 412   priv->account_manager_ready_handler_id = 0;
 413 }
 414
 415 static GObject *
 416 empathy_chatroom_manager_constructor (GType type,
 417                                       guint n_props,
 418                                       GObjectConstructParam *props)
 419 {
 420   GObject *obj;
 421   EmpathyChatroomManager *self;
 422   EmpathyChatroomManagerPriv *priv;
 423
 424   if (chatroom_manager_singleton != NULL)
 425     return g_object_ref (chatroom_manager_singleton);
 426
 427   /* Parent constructor chain */
 428   obj = G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->
 429         constructor (type, n_props, props);
 430
 431   self = EMPATHY_CHATROOM_MANAGER (obj);
 432   priv = GET_PRIV (self);
 433
 434   priv->ready = FALSE;
 435
 436   chatroom_manager_singleton = self;
 437   g_object_add_weak_pointer (obj, (gpointer) &chatroom_manager_singleton);
 438
 439   priv->account_manager = empathy_account_manager_dup_singleton ();
 440
 441   priv->account_manager_ready_handler_id = 0;
 442
 443   if (empathy_account_manager_is_ready (priv->account_manager))
 444     chatroom_manager_get_all (self);
 445   else
 446     priv->account_manager_ready_handler_id =  g_signal_connect (
 447         G_OBJECT (priv->account_manager), "notify::ready",
 448         G_CALLBACK (account_manager_ready_cb), self);
 449
 450   if (priv->file == NULL)
 451     {
 452       /* Set the default file path */
 453       gchar *dir;
 454
 455       dir = g_build_filename (g_get_user_config_dir (), PACKAGE_NAME, NULL);
 456       if (!g_file_test (dir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
 457         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 458
 459       priv->file = g_build_filename (dir, CHATROOMS_XML_FILENAME, NULL);
 460       g_free (dir);
 461     }
 462
 463   return obj;
 464 }
 465
 466 static void
 467 empathy_chatroom_manager_class_init (EmpathyChatroomManagerClass *klass)
 468 {
 469   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 470   GParamSpec *param_spec;
 471
 472   object_class->constructor = empathy_chatroom_manager_constructor;
 473   object_class->get_property = empathy_chatroom_manager_get_property;
 474   object_class->set_property = empathy_chatroom_manager_set_property;
 475         object_class->finalize = chatroom_manager_finalize;
 476
 477   param_spec = g_param_spec_string (
 478       "file",
 479       "path of the favorite file",
 480       "The path of the XML file containing user's favorites",
 481       NULL,
 482       G_PARAM_CONSTRUCT_ONLY |
 483       G_PARAM_READWRITE |
 484       G_PARAM_STATIC_NAME |
 485       G_PARAM_STATIC_NICK |
 486       G_PARAM_STATIC_BLURB);
 487   g_object_class_install_property (object_class, PROP_FILE, param_spec);
 488
 489   param_spec = g_param_spec_boolean (
 490       "ready",
 491       "whether the manager is ready yet",
 492       "whether the manager is ready yet",
 493       FALSE,
 494       G_PARAM_READABLE);
 495   g_object_class_install_property (object_class, PROP_READY, param_spec);
 496
 497   signals[CHATROOM_ADDED] = g_signal_new ("chatroom-added",
 498       G_TYPE_FROM_CLASS (klass),
 499       G_SIGNAL_RUN_LAST,
 500       0, NULL, NULL,
 501       g_cclosure_marshal_VOID__OBJECT,
 502       G_TYPE_NONE,
 503       1, EMPATHY_TYPE_CHATROOM);
 504
 505   signals[CHATROOM_REMOVED] = g_signal_new ("chatroom-removed",
 506       G_TYPE_FROM_CLASS (klass),
 507       G_SIGNAL_RUN_LAST,
 508       0, NULL, NULL,
 509       g_cclosure_marshal_VOID__OBJECT,
 510       G_TYPE_NONE,
 511       1, EMPATHY_TYPE_CHATROOM);
 512
 513   g_type_class_add_private (object_class, sizeof (EmpathyChatroomManagerPriv));
 514 }
 515
 516 static void
 517 empathy_chatroom_manager_init (EmpathyChatroomManager *manager)
 518 {
 519   EmpathyChatroomManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 520       EMPATHY_TYPE_CHATROOM_MANAGER, EmpathyChatroomManagerPriv);
 521
 522   manager->priv = priv;
 523 }
 524
 525 EmpathyChatroomManager *
 526 empathy_chatroom_manager_dup_singleton (const gchar *file)
 527 {
 528   return EMPATHY_CHATROOM_MANAGER (g_object_new (EMPATHY_TYPE_CHATROOM_MANAGER,
 529       "file", file, NULL));
 530 }
 531
 532 gboolean
 533 empathy_chatroom_manager_add (EmpathyChatroomManager *manager,
 534                              EmpathyChatroom        *chatroom)
 535 {
 536   EmpathyChatroomManagerPriv *priv;
 537
 538   g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), FALSE);
 539   g_return_val_if_fail (EMPATHY_IS_CHATROOM (chatroom), FALSE);
 540
 541   priv = GET_PRIV (manager);
 542
 543   /* don't add more than once */
 544   if (!empathy_chatroom_manager_find (manager,
 545       empathy_chatroom_get_account (chatroom),
 546       empathy_chatroom_get_room (chatroom)))
 547     {
 548       add_chatroom (manager, chatroom);
 549
 550       if (empathy_chatroom_is_favorite (chatroom))
 551         reset_save_timeout (manager);
 552
 553       g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 554       return TRUE;
 555     }
 556
 557   return FALSE;
 558 }
 559
 560 static void
 561 chatroom_manager_remove_link (EmpathyChatroomManager *manager,
 562                               GList *l)
 563 {
 564   EmpathyChatroomManagerPriv *priv;
 565   EmpathyChatroom *chatroom;
 566
 567   priv = GET_PRIV (manager);
 568
 569   chatroom = l->data;
 570
 571   if (empathy_chatroom_is_favorite (chatroom))
 572     reset_save_timeout (manager);
 573
 574   priv->chatrooms = g_list_delete_link (priv->chatrooms, l);
 575
 576   g_signal_emit (manager, signals[CHATROOM_REMOVED], 0, chatroom);
 577   g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb, manager);
 578
 579   g_object_unref (chatroom);
 580 }
 581
 582 void
 583 empathy_chatroom_manager_remove (EmpathyChatroomManager *manager,
 584                                  EmpathyChatroom        *chatroom)
 585 {
 586   EmpathyChatroomManagerPriv *priv;
 587   GList *l;
 588
 589   g_return_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager));
 590   g_return_if_fail (EMPATHY_IS_CHATROOM (chatroom));
 591
 592   priv = GET_PRIV (manager);
 593
 594   for (l = priv->chatrooms; l; l = l->next)
 595     {
 596       EmpathyChatroom *this_chatroom;
 597
 598       this_chatroom = l->data;
 599
 600       if (this_chatroom == chatroom ||
 601           empathy_chatroom_equal (chatroom, this_chatroom))
 602         {
 603           chatroom_manager_remove_link (manager, l);
 604           break;
 605         }
 606     }
 607 }
 608
 609 EmpathyChatroom *
 610 empathy_chatroom_manager_find (EmpathyChatroomManager *manager,
 611                                EmpathyAccount *account,
 612                                const gchar *room)
 613 {
 614         EmpathyChatroomManagerPriv *priv;
 615         GList                     *l;
 616
 617         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 618         g_return_val_if_fail (room != NULL, NULL);
 619
 620         priv = GET_PRIV (manager);
 621
 622         for (l = priv->chatrooms; l; l = l->next) {
 623                 EmpathyChatroom *chatroom;
 624                 EmpathyAccount *this_account;
 625                 const gchar    *this_room;
 626
 627                 chatroom = l->data;
 628                 this_account = empathy_chatroom_get_account (chatroom);
 629                 this_room = empathy_chatroom_get_room (chatroom);
 630
 631                 if (this_account && this_room && account == this_account
 632                                 && strcmp (this_room, room) == 0) {
 633                         return chatroom;
 634                 }
 635         }
 636
 637         return NULL;
 638 }
 639
 640 GList *
 641 empathy_chatroom_manager_get_chatrooms (EmpathyChatroomManager *manager,
 642                                        EmpathyAccount *account)
 643 {
 644         EmpathyChatroomManagerPriv *priv;
 645         GList                     *chatrooms, *l;
 646
 647         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 648
 649         priv = GET_PRIV (manager);
 650
 651         if (!account) {
 652                 return g_list_copy (priv->chatrooms);
 653         }
 654
 655         chatrooms = NULL;
 656         for (l = priv->chatrooms; l; l = l->next) {
 657                 EmpathyChatroom *chatroom;
 658
 659                 chatroom = l->data;
 660
 661                 if (account == empathy_chatroom_get_account (chatroom)) {
 662                         chatrooms = g_list_append (chatrooms, chatroom);
 663                 }
 664         }
 665
 666         return chatrooms;
 667 }
 668
 669 guint
 670 empathy_chatroom_manager_get_count (EmpathyChatroomManager *manager,
 671                                    EmpathyAccount *account)
 672 {
 673         EmpathyChatroomManagerPriv *priv;
 674         GList                     *l;
 675         guint                      count = 0;
 676
 677         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), 0);
 678
 679         priv = GET_PRIV (manager);
 680
 681         if (!account) {
 682                 return g_list_length (priv->chatrooms);
 683         }
 684
 685         for (l = priv->chatrooms; l; l = l->next) {
 686                 EmpathyChatroom *chatroom;
 687
 688                 chatroom = l->data;
 689
 690                 if (account == empathy_chatroom_get_account (chatroom)) {
 691                         count++;
 692                 }
 693         }
 694
 695         return count;
 696 }
 697
 698 static void
 699 chatroom_manager_chat_destroyed_cb (EmpathyTpChat *chat,
 700   gpointer manager)
 701 {
 702   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 703   GList *l;
 704
 705   for (l = priv->chatrooms; l; l = l->next)
 706     {
 707       EmpathyChatroom *chatroom = l->data;
 708
 709       if (empathy_chatroom_get_tp_chat (chatroom) != chat)
 710         continue;
 711
 712       empathy_chatroom_set_tp_chat (chatroom, NULL);
 713
 714       if (!empathy_chatroom_is_favorite (chatroom))
 715         {
 716           /* Remove the chatroom from the list, unless it's in the list of
 717            * favourites..
 718            * FIXME this policy should probably not be in libempathy */
 719           chatroom_manager_remove_link (manager, l);
 720         }
 721
 722       break;
 723     }
 724 }
 725
 726 static void
 727 chatroom_manager_observe_channel_cb (EmpathyDispatcher *dispatcher,
 728   EmpathyDispatchOperation *operation, gpointer manager)
 729 {
 730   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 731   EmpathyChatroom *chatroom;
 732   TpChannel *channel;
 733   EmpathyTpChat *chat;
 734   const gchar *roomname;
 735   GQuark channel_type;
 736   TpHandleType handle_type;
 737   EmpathyAccount *account;
 738   TpConnection *connection;
 739
 740   channel_type = empathy_dispatch_operation_get_channel_type_id (operation);
 741
 742   /* Observe Text channels to rooms only */
 743   if (channel_type != TP_IFACE_QUARK_CHANNEL_TYPE_TEXT)
 744     return;
 745
 746   channel = empathy_dispatch_operation_get_channel (operation);
 747   tp_channel_get_handle (channel, &handle_type);
 748
 749   if (handle_type != TP_HANDLE_TYPE_ROOM)
 750     return;
 751
 752   chat = EMPATHY_TP_CHAT (
 753     empathy_dispatch_operation_get_channel_wrapper (operation));
 754   connection = empathy_tp_chat_get_connection (chat);
 755   account = empathy_account_manager_get_account_for_connection (
 756       priv->account_manager, connection);
 757
 758   roomname = empathy_tp_chat_get_id (chat);
 759
 760   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 761
 762   if (chatroom == NULL)
 763     {
 764       chatroom = empathy_chatroom_new_full (account, roomname, roomname,
 765         FALSE);
 766       empathy_chatroom_set_tp_chat (chatroom, chat);
 767       empathy_chatroom_manager_add (manager, chatroom);
 768       g_object_unref (chatroom);
 769     }
 770   else
 771     {
 772         empathy_chatroom_set_tp_chat (chatroom, chat);
 773     }
 774
 775   /* A TpChat is always destroyed as it only gets unreffed after the channel
 776    * has been invalidated in the dispatcher..  */
 777   g_signal_connect (chat, "destroy",
 778     G_CALLBACK (chatroom_manager_chat_destroyed_cb),
 779     manager);
 780 }
 781
 782 void
 783 empathy_chatroom_manager_observe (EmpathyChatroomManager *manager,
 784   EmpathyDispatcher *dispatcher)
 785 {
 786   g_signal_connect (dispatcher, "observe",
 787     G_CALLBACK (chatroom_manager_observe_channel_cb), manager);
 788 }