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