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., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, 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 "empathy-tp-chat.h"
  34 #include "empathy-chatroom-manager.h"
  35 #include "empathy-account-manager.h"
  36 #include "empathy-utils.h"
  37
  38 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  39 #include "empathy-debug.h"
  40
  41 #define CHATROOMS_XML_FILENAME "chatrooms.xml"
  42 #define CHATROOMS_DTD_FILENAME "empathy-chatroom-manager.dtd"
  43 #define SAVE_TIMER 4
  44
  45 static EmpathyChatroomManager *chatroom_manager_singleton = NULL;
  46
  47 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatroomManager)
  48 typedef struct
  49 {
  50   GList *chatrooms;
  51   gchar *file;
  52   EmpathyAccountManager *account_manager;
  53   /* source id of the autosave timer */
  54   gint save_timer_id;
  55 } EmpathyChatroomManagerPriv;
  56
  57 enum {
  58   CHATROOM_ADDED,
  59   CHATROOM_REMOVED,
  60   LAST_SIGNAL
  61 };
  62
  63 static guint signals[LAST_SIGNAL];
  64
  65 /* properties */
  66 enum
  67 {
  68   PROP_FILE = 1,
  69   LAST_PROPERTY
  70 };
  71
  72 G_DEFINE_TYPE (EmpathyChatroomManager, empathy_chatroom_manager, G_TYPE_OBJECT);
  73
  74 /*
  75  * API to save/load and parse the chatrooms file.
  76  */
  77
  78 static gboolean
  79 chatroom_manager_file_save (EmpathyChatroomManager *manager)
  80 {
  81         EmpathyChatroomManagerPriv *priv;
  82         xmlDocPtr                  doc;
  83         xmlNodePtr                 root;
  84         GList                     *l;
  85
  86         priv = GET_PRIV (manager);
  87
  88         doc = xmlNewDoc ("1.0");
  89         root = xmlNewNode (NULL, "chatrooms");
  90         xmlDocSetRootElement (doc, root);
  91
  92         for (l = priv->chatrooms; l; l = l->next) {
  93                 EmpathyChatroom *chatroom;
  94                 xmlNodePtr       node;
  95                 const gchar     *account_id;
  96                 gboolean         favorite;
  97
  98                 chatroom = l->data;
  99
 100                 g_object_get (chatroom, "favorite", &favorite, NULL);
 101                 if (!favorite) {
 102                         continue;
 103                 }
 104
 105                 account_id = mc_account_get_unique_name (empathy_chatroom_get_account (chatroom));
 106
 107                 node = xmlNewChild (root, NULL, "chatroom", NULL);
 108                 xmlNewTextChild (node, NULL, "name", empathy_chatroom_get_name (chatroom));
 109                 xmlNewTextChild (node, NULL, "room", empathy_chatroom_get_room (chatroom));
 110                 xmlNewTextChild (node, NULL, "account", account_id);
 111                 xmlNewTextChild (node, NULL, "auto_connect",
 112                         empathy_chatroom_get_auto_connect (chatroom) ? "yes" : "no");
 113         }
 114
 115         /* Make sure the XML is indented properly */
 116         xmlIndentTreeOutput = 1;
 117
 118         DEBUG ("Saving file:'%s'", priv->file);
 119         xmlSaveFormatFileEnc (priv->file, doc, "utf-8", 1);
 120         xmlFreeDoc (doc);
 121
 122         xmlCleanupParser ();
 123         xmlMemoryDump ();
 124
 125         return TRUE;
 126 }
 127
 128 static gboolean
 129 save_timeout (EmpathyChatroomManager *self)
 130 {
 131   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 132
 133   priv->save_timer_id = 0;
 134   chatroom_manager_file_save (self);
 135
 136   return FALSE;
 137 }
 138
 139 static void
 140 reset_save_timeout (EmpathyChatroomManager *self)
 141 {
 142   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 143
 144   if (priv->save_timer_id > 0)
 145     {
 146       g_source_remove (priv->save_timer_id);
 147     }
 148
 149   priv->save_timer_id = g_timeout_add_seconds (SAVE_TIMER,
 150       (GSourceFunc) save_timeout, self);
 151 }
 152
 153 static void
 154 chatroom_changed_cb (EmpathyChatroom *chatroom,
 155                      GParamSpec *spec,
 156                      EmpathyChatroomManager *self)
 157 {
 158   reset_save_timeout (self);
 159 }
 160
 161 static void
 162 add_chatroom (EmpathyChatroomManager *self,
 163               EmpathyChatroom *chatroom)
 164 {
 165   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 166
 167   priv->chatrooms = g_list_prepend (priv->chatrooms, g_object_ref (chatroom));
 168
 169   g_signal_connect (chatroom, "notify",
 170       G_CALLBACK (chatroom_changed_cb), self);
 171 }
 172
 173 static void
 174 chatroom_manager_parse_chatroom (EmpathyChatroomManager *manager,
 175                                  xmlNodePtr             node)
 176 {
 177         EmpathyChatroomManagerPriv *priv;
 178         EmpathyChatroom            *chatroom;
 179         McAccount                 *account;
 180         xmlNodePtr                 child;
 181         gchar                     *str;
 182         gchar                     *name;
 183         gchar                     *room;
 184         gchar                     *account_id;
 185         gboolean                   auto_connect;
 186
 187         priv = GET_PRIV (manager);
 188
 189         /* default values. */
 190         name = NULL;
 191         room = NULL;
 192         auto_connect = TRUE;
 193         account_id = NULL;
 194
 195         for (child = node->children; child; child = child->next) {
 196                 gchar *tag;
 197
 198                 if (xmlNodeIsText (child)) {
 199                         continue;
 200                 }
 201
 202                 tag = (gchar *) child->name;
 203                 str = (gchar *) xmlNodeGetContent (child);
 204
 205                 if (strcmp (tag, "name") == 0) {
 206                         name = g_strdup (str);
 207                 }
 208                 else if (strcmp (tag, "room") == 0) {
 209                         room = g_strdup (str);
 210                 }
 211                 else if (strcmp (tag, "auto_connect") == 0) {
 212                         if (strcmp (str, "yes") == 0) {
 213                                 auto_connect = TRUE;
 214                         } else {
 215                                 auto_connect = FALSE;
 216                         }
 217                 }
 218                 else if (strcmp (tag, "account") == 0) {
 219                         account_id = g_strdup (str);
 220                 }
 221
 222                 xmlFree (str);
 223         }
 224
 225         account = mc_account_lookup (account_id);
 226         if (!account) {
 227                 g_free (name);
 228                 g_free (room);
 229                 g_free (account_id);
 230                 return;
 231         }
 232
 233         chatroom = empathy_chatroom_new_full (account, room, name, auto_connect);
 234         g_object_set (chatroom, "favorite", TRUE, NULL);
 235         add_chatroom (manager, chatroom);
 236         g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 237
 238         g_object_unref (account);
 239         g_free (name);
 240         g_free (room);
 241         g_free (account_id);
 242 }
 243
 244 static gboolean
 245 chatroom_manager_file_parse (EmpathyChatroomManager *manager,
 246                              const gchar           *filename)
 247 {
 248         EmpathyChatroomManagerPriv *priv;
 249         xmlParserCtxtPtr           ctxt;
 250         xmlDocPtr                  doc;
 251         xmlNodePtr                 chatrooms;
 252         xmlNodePtr                 node;
 253
 254         priv = GET_PRIV (manager);
 255
 256         DEBUG ("Attempting to parse file:'%s'...", filename);
 257
 258         ctxt = xmlNewParserCtxt ();
 259
 260         /* Parse and validate the file. */
 261         doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
 262         if (!doc) {
 263                 g_warning ("Failed to parse file:'%s'", filename);
 264                 xmlFreeParserCtxt (ctxt);
 265                 return FALSE;
 266         }
 267
 268         if (!empathy_xml_validate (doc, CHATROOMS_DTD_FILENAME)) {
 269                 g_warning ("Failed to validate file:'%s'", filename);
 270                 xmlFreeDoc(doc);
 271                 xmlFreeParserCtxt (ctxt);
 272                 return FALSE;
 273         }
 274
 275         /* The root node, chatrooms. */
 276         chatrooms = xmlDocGetRootElement (doc);
 277
 278         for (node = chatrooms->children; node; node = node->next) {
 279                 if (strcmp ((gchar *) node->name, "chatroom") == 0) {
 280                         chatroom_manager_parse_chatroom (manager, node);
 281                 }
 282         }
 283
 284         DEBUG ("Parsed %d chatrooms", g_list_length (priv->chatrooms));
 285
 286         xmlFreeDoc(doc);
 287         xmlFreeParserCtxt (ctxt);
 288
 289         return TRUE;
 290 }
 291
 292 static gboolean
 293 chatroom_manager_get_all (EmpathyChatroomManager *manager)
 294 {
 295         EmpathyChatroomManagerPriv *priv;
 296
 297         priv = GET_PRIV (manager);
 298
 299         /* read file in */
 300         if (g_file_test (priv->file, G_FILE_TEST_EXISTS) &&
 301             !chatroom_manager_file_parse (manager, priv->file)) {
 302                 return FALSE;
 303         }
 304
 305         return TRUE;
 306 }
 307
 308 static void
 309 empathy_chatroom_manager_get_property (GObject *object,
 310                                        guint property_id,
 311                                        GValue *value,
 312                                        GParamSpec *pspec)
 313 {
 314   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 315   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 316
 317   switch (property_id)
 318     {
 319       case PROP_FILE:
 320         g_value_set_string (value, priv->file);
 321         break;
 322       default:
 323         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 324         break;
 325     }
 326 }
 327
 328 static void
 329 empathy_chatroom_manager_set_property (GObject *object,
 330                                        guint property_id,
 331                                        const GValue *value,
 332                                        GParamSpec *pspec)
 333 {
 334   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 335   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 336
 337   switch (property_id)
 338     {
 339       case PROP_FILE:
 340         g_free (priv->file);
 341         priv->file = g_value_dup_string (value);
 342         break;
 343       default:
 344         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 345         break;
 346     }
 347 }
 348
 349 static void
 350 chatroom_manager_finalize (GObject *object)
 351 {
 352   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 353   EmpathyChatroomManagerPriv *priv;
 354   GList *l;
 355
 356   priv = GET_PRIV (object);
 357
 358   g_object_unref (priv->account_manager);
 359
 360   if (priv->save_timer_id > 0)
 361     {
 362       /* have to save before destroy the object */
 363       g_source_remove (priv->save_timer_id);
 364       priv->save_timer_id = 0;
 365       chatroom_manager_file_save (self);
 366     }
 367
 368   for (l = priv->chatrooms; l != NULL; l = g_list_next (l))
 369     {
 370       EmpathyChatroom *chatroom = l->data;
 371
 372       g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 373           self);
 374
 375       g_object_unref (chatroom);
 376     }
 377
 378   g_list_free (priv->chatrooms);
 379   g_free (priv->file);
 380
 381   (G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->finalize) (object);
 382 }
 383
 384 static GObject *
 385 empathy_chatroom_manager_constructor (GType type,
 386                                       guint n_props,
 387                                       GObjectConstructParam *props)
 388 {
 389   GObject *obj;
 390   EmpathyChatroomManager *self;
 391   EmpathyChatroomManagerPriv *priv;
 392
 393   if (chatroom_manager_singleton != NULL)
 394     return g_object_ref (chatroom_manager_singleton);
 395
 396   /* Parent constructor chain */
 397   obj = G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->
 398         constructor (type, n_props, props);
 399
 400   self = EMPATHY_CHATROOM_MANAGER (obj);
 401   priv = GET_PRIV (self);
 402
 403   chatroom_manager_singleton = self;
 404   g_object_add_weak_pointer (obj, (gpointer) &chatroom_manager_singleton);
 405
 406   priv->account_manager = empathy_account_manager_dup_singleton ();
 407
 408   if (priv->file == NULL)
 409     {
 410       /* Set the default file path */
 411       gchar *dir;
 412
 413       dir = g_build_filename (g_get_home_dir (), ".gnome2", PACKAGE_NAME, NULL);
 414       if (!g_file_test (dir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
 415         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 416
 417       priv->file = g_build_filename (dir, CHATROOMS_XML_FILENAME, NULL);
 418       g_free (dir);
 419     }
 420
 421   chatroom_manager_get_all (self);
 422   return obj;
 423 }
 424
 425 static void
 426 empathy_chatroom_manager_class_init (EmpathyChatroomManagerClass *klass)
 427 {
 428   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 429   GParamSpec *param_spec;
 430
 431   object_class->constructor = empathy_chatroom_manager_constructor;
 432   object_class->get_property = empathy_chatroom_manager_get_property;
 433   object_class->set_property = empathy_chatroom_manager_set_property;
 434         object_class->finalize = chatroom_manager_finalize;
 435
 436   param_spec = g_param_spec_string (
 437       "file",
 438       "path of the favorite file",
 439       "The path of the XML file containing user's favorites",
 440       NULL,
 441       G_PARAM_CONSTRUCT_ONLY |
 442       G_PARAM_READWRITE |
 443       G_PARAM_STATIC_NAME |
 444       G_PARAM_STATIC_NICK |
 445       G_PARAM_STATIC_BLURB);
 446   g_object_class_install_property (object_class, PROP_FILE, param_spec);
 447
 448   signals[CHATROOM_ADDED] = g_signal_new ("chatroom-added",
 449       G_TYPE_FROM_CLASS (klass),
 450       G_SIGNAL_RUN_LAST,
 451       0, NULL, NULL,
 452       g_cclosure_marshal_VOID__OBJECT,
 453       G_TYPE_NONE,
 454       1, EMPATHY_TYPE_CHATROOM);
 455
 456   signals[CHATROOM_REMOVED] = g_signal_new ("chatroom-removed",
 457       G_TYPE_FROM_CLASS (klass),
 458       G_SIGNAL_RUN_LAST,
 459       0, NULL, NULL,
 460       g_cclosure_marshal_VOID__OBJECT,
 461       G_TYPE_NONE,
 462       1, EMPATHY_TYPE_CHATROOM);
 463
 464   g_type_class_add_private (object_class, sizeof (EmpathyChatroomManagerPriv));
 465 }
 466
 467 static void
 468 empathy_chatroom_manager_init (EmpathyChatroomManager *manager)
 469 {
 470   EmpathyChatroomManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 471       EMPATHY_TYPE_CHATROOM_MANAGER, EmpathyChatroomManagerPriv);
 472
 473   manager->priv = priv;
 474 }
 475
 476 EmpathyChatroomManager *
 477 empathy_chatroom_manager_dup_singleton (const gchar *file)
 478 {
 479   return EMPATHY_CHATROOM_MANAGER (g_object_new (EMPATHY_TYPE_CHATROOM_MANAGER,
 480       "file", file, NULL));
 481 }
 482
 483 gboolean
 484 empathy_chatroom_manager_add (EmpathyChatroomManager *manager,
 485                              EmpathyChatroom        *chatroom)
 486 {
 487   EmpathyChatroomManagerPriv *priv;
 488
 489   g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), FALSE);
 490   g_return_val_if_fail (EMPATHY_IS_CHATROOM (chatroom), FALSE);
 491
 492   priv = GET_PRIV (manager);
 493
 494   /* don't add more than once */
 495   if (!empathy_chatroom_manager_find (manager,
 496       empathy_chatroom_get_account (chatroom),
 497       empathy_chatroom_get_room (chatroom)))
 498     {
 499       gboolean favorite;
 500
 501       g_object_get (chatroom, "favorite", &favorite, NULL);
 502       add_chatroom (manager, chatroom);
 503
 504       if (favorite)
 505         reset_save_timeout (manager);
 506
 507       g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 508       return TRUE;
 509     }
 510
 511   return FALSE;
 512 }
 513
 514 void
 515 empathy_chatroom_manager_remove (EmpathyChatroomManager *manager,
 516                                  EmpathyChatroom        *chatroom)
 517 {
 518   EmpathyChatroomManagerPriv *priv;
 519   GList *l;
 520
 521   g_return_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager));
 522   g_return_if_fail (EMPATHY_IS_CHATROOM (chatroom));
 523
 524   priv = GET_PRIV (manager);
 525
 526   for (l = priv->chatrooms; l; l = l->next)
 527     {
 528       EmpathyChatroom *this_chatroom;
 529
 530       this_chatroom = l->data;
 531
 532       if (this_chatroom == chatroom ||
 533           empathy_chatroom_equal (chatroom, this_chatroom))
 534         {
 535           gboolean favorite;
 536
 537           priv->chatrooms = g_list_delete_link (priv->chatrooms, l);
 538           g_object_get (chatroom, "favorite", &favorite, NULL);
 539           if (favorite)
 540             reset_save_timeout (manager);
 541
 542           g_signal_emit (manager, signals[CHATROOM_REMOVED], 0, this_chatroom);
 543           g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 544               manager);
 545
 546           g_object_unref (this_chatroom);
 547           break;
 548         }
 549     }
 550 }
 551
 552 EmpathyChatroom *
 553 empathy_chatroom_manager_find (EmpathyChatroomManager *manager,
 554                                McAccount *account,
 555                                const gchar *room)
 556 {
 557         EmpathyChatroomManagerPriv *priv;
 558         GList                     *l;
 559
 560         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 561         g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);
 562         g_return_val_if_fail (room != NULL, NULL);
 563
 564         priv = GET_PRIV (manager);
 565
 566         for (l = priv->chatrooms; l; l = l->next) {
 567                 EmpathyChatroom *chatroom;
 568                 McAccount      *this_account;
 569                 const gchar    *this_room;
 570
 571                 chatroom = l->data;
 572                 this_account = empathy_chatroom_get_account (chatroom);
 573                 this_room = empathy_chatroom_get_room (chatroom);
 574
 575                 if (this_account && this_room &&
 576                     empathy_account_equal (account, this_account) &&
 577                     strcmp (this_room, room) == 0) {
 578                         return chatroom;
 579                 }
 580         }
 581
 582         return NULL;
 583 }
 584
 585 GList *
 586 empathy_chatroom_manager_get_chatrooms (EmpathyChatroomManager *manager,
 587                                        McAccount             *account)
 588 {
 589         EmpathyChatroomManagerPriv *priv;
 590         GList                     *chatrooms, *l;
 591
 592         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 593
 594         priv = GET_PRIV (manager);
 595
 596         if (!account) {
 597                 return g_list_copy (priv->chatrooms);
 598         }
 599
 600         chatrooms = NULL;
 601         for (l = priv->chatrooms; l; l = l->next) {
 602                 EmpathyChatroom *chatroom;
 603
 604                 chatroom = l->data;
 605
 606                 if (empathy_account_equal (account,
 607                                           empathy_chatroom_get_account (chatroom))) {
 608                         chatrooms = g_list_append (chatrooms, chatroom);
 609                 }
 610         }
 611
 612         return chatrooms;
 613 }
 614
 615 guint
 616 empathy_chatroom_manager_get_count (EmpathyChatroomManager *manager,
 617                                    McAccount             *account)
 618 {
 619         EmpathyChatroomManagerPriv *priv;
 620         GList                     *l;
 621         guint                      count = 0;
 622
 623         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), 0);
 624
 625         priv = GET_PRIV (manager);
 626
 627         if (!account) {
 628                 return g_list_length (priv->chatrooms);
 629         }
 630
 631         for (l = priv->chatrooms; l; l = l->next) {
 632                 EmpathyChatroom *chatroom;
 633
 634                 chatroom = l->data;
 635
 636                 if (empathy_account_equal (account,
 637                                            empathy_chatroom_get_account (chatroom))) {
 638                         count++;
 639                 }
 640         }
 641
 642         return count;
 643 }
 644
 645 static void
 646 chatroom_manager_chat_destroyed_cb (EmpathyTpChat *chat,
 647   gpointer manager)
 648 {
 649   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 650   McAccount *account;
 651   TpConnection *connection;
 652   EmpathyChatroom *chatroom;
 653   const gchar *roomname;
 654   gboolean favorite;
 655
 656   connection = empathy_tp_chat_get_connection (chat);
 657   account = empathy_account_manager_get_account (priv->account_manager,
 658       connection);
 659   roomname = empathy_tp_chat_get_id (chat);
 660   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 661
 662   if (chatroom == NULL)
 663     return;
 664
 665   g_object_set (chatroom, "tp-chat", NULL, NULL);
 666   g_object_get (chatroom, "favorite", &favorite, NULL);
 667
 668   if (!favorite)
 669     {
 670       /* Remove the chatroom from the list, unless it's in the list of
 671        * favourites..
 672        * FIXME this policy should probably not be in libempathy */
 673       empathy_chatroom_manager_remove (manager, chatroom);
 674     }
 675 }
 676
 677 static void
 678 chatroom_manager_observe_channel_cb (EmpathyDispatcher *dispatcher,
 679   EmpathyDispatchOperation *operation, gpointer manager)
 680 {
 681   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 682   EmpathyChatroom *chatroom;
 683   TpChannel *channel;
 684   EmpathyTpChat *chat;
 685   const gchar *roomname;
 686   GQuark channel_type;
 687   TpHandleType handle_type;
 688   McAccount *account;
 689   TpConnection *connection;
 690
 691   channel_type = empathy_dispatch_operation_get_channel_type_id (operation);
 692
 693   /* Observe Text channels to rooms only */
 694   if (channel_type != TP_IFACE_QUARK_CHANNEL_TYPE_TEXT)
 695     return;
 696
 697   channel = empathy_dispatch_operation_get_channel (operation);
 698   tp_channel_get_handle (channel, &handle_type);
 699
 700   if (handle_type != TP_HANDLE_TYPE_ROOM)
 701     return;
 702
 703   chat = EMPATHY_TP_CHAT (
 704     empathy_dispatch_operation_get_channel_wrapper (operation));
 705   connection = empathy_tp_chat_get_connection (chat);
 706   account = empathy_account_manager_get_account (priv->account_manager,
 707       connection);
 708
 709   roomname = empathy_tp_chat_get_id (chat);
 710
 711   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 712
 713   if (chatroom == NULL)
 714     {
 715       chatroom = empathy_chatroom_new_full (account, roomname, roomname,
 716         FALSE);
 717       g_object_set (G_OBJECT (chatroom), "tp-chat", chat, NULL);
 718       empathy_chatroom_manager_add (manager, chatroom);
 719       g_object_unref (chatroom);
 720     }
 721   else
 722     {
 723       g_object_set (G_OBJECT (chatroom), "tp-chat", chat, NULL);
 724     }
 725
 726   /* A TpChat is always destroyed as it only gets unreffed after the channel
 727    * has been invalidated in the dispatcher..  */
 728   g_signal_connect (chat, "destroy",
 729     G_CALLBACK (chatroom_manager_chat_destroyed_cb),
 730     manager);
 731 }
 732
 733 void
 734 empathy_chatroom_manager_observe (EmpathyChatroomManager *manager,
 735   EmpathyDispatcher *dispatcher)
 736 {
 737   g_signal_connect (dispatcher, "observe",
 738     G_CALLBACK (chatroom_manager_observe_channel_cb), manager);
 739 }