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 "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
  97                 chatroom = l->data;
  98
  99                 if (!empathy_chatroom_is_favorite (chatroom)) {
 100                         continue;
 101                 }
 102
 103                 account_id = mc_account_get_unique_name (empathy_chatroom_get_account (chatroom));
 104
 105                 node = xmlNewChild (root, NULL, "chatroom", NULL);
 106                 xmlNewTextChild (node, NULL, "name", empathy_chatroom_get_name (chatroom));
 107                 xmlNewTextChild (node, NULL, "room", empathy_chatroom_get_room (chatroom));
 108                 xmlNewTextChild (node, NULL, "account", account_id);
 109                 xmlNewTextChild (node, NULL, "auto_connect",
 110                         empathy_chatroom_get_auto_connect (chatroom) ? "yes" : "no");
 111         }
 112
 113         /* Make sure the XML is indented properly */
 114         xmlIndentTreeOutput = 1;
 115
 116         DEBUG ("Saving file:'%s'", priv->file);
 117         xmlSaveFormatFileEnc (priv->file, doc, "utf-8", 1);
 118         xmlFreeDoc (doc);
 119
 120         xmlCleanupParser ();
 121         xmlMemoryDump ();
 122
 123         return TRUE;
 124 }
 125
 126 static gboolean
 127 save_timeout (EmpathyChatroomManager *self)
 128 {
 129   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 130
 131   priv->save_timer_id = 0;
 132   chatroom_manager_file_save (self);
 133
 134   return FALSE;
 135 }
 136
 137 static void
 138 reset_save_timeout (EmpathyChatroomManager *self)
 139 {
 140   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 141
 142   if (priv->save_timer_id > 0)
 143     {
 144       g_source_remove (priv->save_timer_id);
 145     }
 146
 147   priv->save_timer_id = g_timeout_add_seconds (SAVE_TIMER,
 148       (GSourceFunc) save_timeout, self);
 149 }
 150
 151 static void
 152 chatroom_changed_cb (EmpathyChatroom *chatroom,
 153                      GParamSpec *spec,
 154                      EmpathyChatroomManager *self)
 155 {
 156   reset_save_timeout (self);
 157 }
 158
 159 static void
 160 add_chatroom (EmpathyChatroomManager *self,
 161               EmpathyChatroom *chatroom)
 162 {
 163   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 164
 165   priv->chatrooms = g_list_prepend (priv->chatrooms, g_object_ref (chatroom));
 166
 167   g_signal_connect (chatroom, "notify",
 168       G_CALLBACK (chatroom_changed_cb), self);
 169 }
 170
 171 static void
 172 chatroom_manager_parse_chatroom (EmpathyChatroomManager *manager,
 173                                  xmlNodePtr             node)
 174 {
 175         EmpathyChatroomManagerPriv *priv;
 176         EmpathyChatroom            *chatroom;
 177         McAccount                 *account;
 178         xmlNodePtr                 child;
 179         gchar                     *str;
 180         gchar                     *name;
 181         gchar                     *room;
 182         gchar                     *account_id;
 183         gboolean                   auto_connect;
 184
 185         priv = GET_PRIV (manager);
 186
 187         /* default values. */
 188         name = NULL;
 189         room = NULL;
 190         auto_connect = TRUE;
 191         account_id = NULL;
 192
 193         for (child = node->children; child; child = child->next) {
 194                 gchar *tag;
 195
 196                 if (xmlNodeIsText (child)) {
 197                         continue;
 198                 }
 199
 200                 tag = (gchar *) child->name;
 201                 str = (gchar *) xmlNodeGetContent (child);
 202
 203                 if (strcmp (tag, "name") == 0) {
 204                         name = g_strdup (str);
 205                 }
 206                 else if (strcmp (tag, "room") == 0) {
 207                         room = g_strdup (str);
 208                 }
 209                 else if (strcmp (tag, "auto_connect") == 0) {
 210                         if (strcmp (str, "yes") == 0) {
 211                                 auto_connect = TRUE;
 212                         } else {
 213                                 auto_connect = FALSE;
 214                         }
 215                 }
 216                 else if (strcmp (tag, "account") == 0) {
 217                         account_id = g_strdup (str);
 218                 }
 219
 220                 xmlFree (str);
 221         }
 222
 223         account = mc_account_lookup (account_id);
 224         if (!account) {
 225                 g_free (name);
 226                 g_free (room);
 227                 g_free (account_id);
 228                 return;
 229         }
 230
 231         chatroom = empathy_chatroom_new_full (account, room, name, auto_connect);
 232         empathy_chatroom_set_favorite (chatroom, TRUE);
 233         add_chatroom (manager, chatroom);
 234         g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 235
 236         g_object_unref (account);
 237         g_free (name);
 238         g_free (room);
 239         g_free (account_id);
 240 }
 241
 242 static gboolean
 243 chatroom_manager_file_parse (EmpathyChatroomManager *manager,
 244                              const gchar           *filename)
 245 {
 246         EmpathyChatroomManagerPriv *priv;
 247         xmlParserCtxtPtr           ctxt;
 248         xmlDocPtr                  doc;
 249         xmlNodePtr                 chatrooms;
 250         xmlNodePtr                 node;
 251
 252         priv = GET_PRIV (manager);
 253
 254         DEBUG ("Attempting to parse file:'%s'...", filename);
 255
 256         ctxt = xmlNewParserCtxt ();
 257
 258         /* Parse and validate the file. */
 259         doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
 260         if (!doc) {
 261                 g_warning ("Failed to parse file:'%s'", filename);
 262                 xmlFreeParserCtxt (ctxt);
 263                 return FALSE;
 264         }
 265
 266         if (!empathy_xml_validate (doc, CHATROOMS_DTD_FILENAME)) {
 267                 g_warning ("Failed to validate file:'%s'", filename);
 268                 xmlFreeDoc (doc);
 269                 xmlFreeParserCtxt (ctxt);
 270                 return FALSE;
 271         }
 272
 273         /* The root node, chatrooms. */
 274         chatrooms = xmlDocGetRootElement (doc);
 275
 276         for (node = chatrooms->children; node; node = node->next) {
 277                 if (strcmp ((gchar *) node->name, "chatroom") == 0) {
 278                         chatroom_manager_parse_chatroom (manager, node);
 279                 }
 280         }
 281
 282         DEBUG ("Parsed %d chatrooms", g_list_length (priv->chatrooms));
 283
 284         xmlFreeDoc (doc);
 285         xmlFreeParserCtxt (ctxt);
 286
 287         return TRUE;
 288 }
 289
 290 static gboolean
 291 chatroom_manager_get_all (EmpathyChatroomManager *manager)
 292 {
 293         EmpathyChatroomManagerPriv *priv;
 294
 295         priv = GET_PRIV (manager);
 296
 297         /* read file in */
 298         if (g_file_test (priv->file, G_FILE_TEST_EXISTS) &&
 299             !chatroom_manager_file_parse (manager, priv->file)) {
 300                 return FALSE;
 301         }
 302
 303         return TRUE;
 304 }
 305
 306 static void
 307 empathy_chatroom_manager_get_property (GObject *object,
 308                                        guint property_id,
 309                                        GValue *value,
 310                                        GParamSpec *pspec)
 311 {
 312   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 313   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 314
 315   switch (property_id)
 316     {
 317       case PROP_FILE:
 318         g_value_set_string (value, priv->file);
 319         break;
 320       default:
 321         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 322         break;
 323     }
 324 }
 325
 326 static void
 327 empathy_chatroom_manager_set_property (GObject *object,
 328                                        guint property_id,
 329                                        const GValue *value,
 330                                        GParamSpec *pspec)
 331 {
 332   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 333   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 334
 335   switch (property_id)
 336     {
 337       case PROP_FILE:
 338         g_free (priv->file);
 339         priv->file = g_value_dup_string (value);
 340         break;
 341       default:
 342         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 343         break;
 344     }
 345 }
 346
 347 static void
 348 chatroom_manager_finalize (GObject *object)
 349 {
 350   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 351   EmpathyChatroomManagerPriv *priv;
 352   GList *l;
 353
 354   priv = GET_PRIV (object);
 355
 356   g_object_unref (priv->account_manager);
 357
 358   if (priv->save_timer_id > 0)
 359     {
 360       /* have to save before destroy the object */
 361       g_source_remove (priv->save_timer_id);
 362       priv->save_timer_id = 0;
 363       chatroom_manager_file_save (self);
 364     }
 365
 366   for (l = priv->chatrooms; l != NULL; l = g_list_next (l))
 367     {
 368       EmpathyChatroom *chatroom = l->data;
 369
 370       g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 371           self);
 372
 373       g_object_unref (chatroom);
 374     }
 375
 376   g_list_free (priv->chatrooms);
 377   g_free (priv->file);
 378
 379   (G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->finalize) (object);
 380 }
 381
 382 static GObject *
 383 empathy_chatroom_manager_constructor (GType type,
 384                                       guint n_props,
 385                                       GObjectConstructParam *props)
 386 {
 387   GObject *obj;
 388   EmpathyChatroomManager *self;
 389   EmpathyChatroomManagerPriv *priv;
 390
 391   if (chatroom_manager_singleton != NULL)
 392     return g_object_ref (chatroom_manager_singleton);
 393
 394   /* Parent constructor chain */
 395   obj = G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->
 396         constructor (type, n_props, props);
 397
 398   self = EMPATHY_CHATROOM_MANAGER (obj);
 399   priv = GET_PRIV (self);
 400
 401   chatroom_manager_singleton = self;
 402   g_object_add_weak_pointer (obj, (gpointer) &chatroom_manager_singleton);
 403
 404   priv->account_manager = empathy_account_manager_dup_singleton ();
 405
 406   if (priv->file == NULL)
 407     {
 408       /* Set the default file path */
 409       gchar *dir;
 410
 411       dir = g_build_filename (g_get_home_dir (), ".gnome2", PACKAGE_NAME, NULL);
 412       if (!g_file_test (dir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
 413         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 414
 415       priv->file = g_build_filename (dir, CHATROOMS_XML_FILENAME, NULL);
 416       g_free (dir);
 417     }
 418
 419   chatroom_manager_get_all (self);
 420   return obj;
 421 }
 422
 423 static void
 424 empathy_chatroom_manager_class_init (EmpathyChatroomManagerClass *klass)
 425 {
 426   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 427   GParamSpec *param_spec;
 428
 429   object_class->constructor = empathy_chatroom_manager_constructor;
 430   object_class->get_property = empathy_chatroom_manager_get_property;
 431   object_class->set_property = empathy_chatroom_manager_set_property;
 432         object_class->finalize = chatroom_manager_finalize;
 433
 434   param_spec = g_param_spec_string (
 435       "file",
 436       "path of the favorite file",
 437       "The path of the XML file containing user's favorites",
 438       NULL,
 439       G_PARAM_CONSTRUCT_ONLY |
 440       G_PARAM_READWRITE |
 441       G_PARAM_STATIC_NAME |
 442       G_PARAM_STATIC_NICK |
 443       G_PARAM_STATIC_BLURB);
 444   g_object_class_install_property (object_class, PROP_FILE, param_spec);
 445
 446   signals[CHATROOM_ADDED] = g_signal_new ("chatroom-added",
 447       G_TYPE_FROM_CLASS (klass),
 448       G_SIGNAL_RUN_LAST,
 449       0, NULL, NULL,
 450       g_cclosure_marshal_VOID__OBJECT,
 451       G_TYPE_NONE,
 452       1, EMPATHY_TYPE_CHATROOM);
 453
 454   signals[CHATROOM_REMOVED] = g_signal_new ("chatroom-removed",
 455       G_TYPE_FROM_CLASS (klass),
 456       G_SIGNAL_RUN_LAST,
 457       0, NULL, NULL,
 458       g_cclosure_marshal_VOID__OBJECT,
 459       G_TYPE_NONE,
 460       1, EMPATHY_TYPE_CHATROOM);
 461
 462   g_type_class_add_private (object_class, sizeof (EmpathyChatroomManagerPriv));
 463 }
 464
 465 static void
 466 empathy_chatroom_manager_init (EmpathyChatroomManager *manager)
 467 {
 468   EmpathyChatroomManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 469       EMPATHY_TYPE_CHATROOM_MANAGER, EmpathyChatroomManagerPriv);
 470
 471   manager->priv = priv;
 472 }
 473
 474 EmpathyChatroomManager *
 475 empathy_chatroom_manager_dup_singleton (const gchar *file)
 476 {
 477   return EMPATHY_CHATROOM_MANAGER (g_object_new (EMPATHY_TYPE_CHATROOM_MANAGER,
 478       "file", file, NULL));
 479 }
 480
 481 gboolean
 482 empathy_chatroom_manager_add (EmpathyChatroomManager *manager,
 483                              EmpathyChatroom        *chatroom)
 484 {
 485   EmpathyChatroomManagerPriv *priv;
 486
 487   g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), FALSE);
 488   g_return_val_if_fail (EMPATHY_IS_CHATROOM (chatroom), FALSE);
 489
 490   priv = GET_PRIV (manager);
 491
 492   /* don't add more than once */
 493   if (!empathy_chatroom_manager_find (manager,
 494       empathy_chatroom_get_account (chatroom),
 495       empathy_chatroom_get_room (chatroom)))
 496     {
 497       add_chatroom (manager, chatroom);
 498
 499       if (empathy_chatroom_is_favorite (chatroom))
 500         reset_save_timeout (manager);
 501
 502       g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 503       return TRUE;
 504     }
 505
 506   return FALSE;
 507 }
 508
 509 static void
 510 chatroom_manager_remove_link (EmpathyChatroomManager *manager,
 511                               GList *l)
 512 {
 513   EmpathyChatroomManagerPriv *priv;
 514   EmpathyChatroom *chatroom;
 515
 516   priv = GET_PRIV (manager);
 517
 518   chatroom = l->data;
 519
 520   if (empathy_chatroom_is_favorite (chatroom))
 521     reset_save_timeout (manager);
 522
 523   g_signal_emit (manager, signals[CHATROOM_REMOVED], 0, chatroom);
 524   g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb, manager);
 525
 526   priv->chatrooms = g_list_delete_link (priv->chatrooms, l);
 527   g_object_unref (chatroom);
 528 }
 529
 530 void
 531 empathy_chatroom_manager_remove (EmpathyChatroomManager *manager,
 532                                  EmpathyChatroom        *chatroom)
 533 {
 534   EmpathyChatroomManagerPriv *priv;
 535   GList *l;
 536
 537   g_return_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager));
 538   g_return_if_fail (EMPATHY_IS_CHATROOM (chatroom));
 539
 540   priv = GET_PRIV (manager);
 541
 542   for (l = priv->chatrooms; l; l = l->next)
 543     {
 544       EmpathyChatroom *this_chatroom;
 545
 546       this_chatroom = l->data;
 547
 548       if (this_chatroom == chatroom ||
 549           empathy_chatroom_equal (chatroom, this_chatroom))
 550         {
 551           chatroom_manager_remove_link (manager, l);
 552           break;
 553         }
 554     }
 555 }
 556
 557 EmpathyChatroom *
 558 empathy_chatroom_manager_find (EmpathyChatroomManager *manager,
 559                                McAccount *account,
 560                                const gchar *room)
 561 {
 562         EmpathyChatroomManagerPriv *priv;
 563         GList                     *l;
 564
 565         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 566         g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);
 567         g_return_val_if_fail (room != NULL, NULL);
 568
 569         priv = GET_PRIV (manager);
 570
 571         for (l = priv->chatrooms; l; l = l->next) {
 572                 EmpathyChatroom *chatroom;
 573                 McAccount      *this_account;
 574                 const gchar    *this_room;
 575
 576                 chatroom = l->data;
 577                 this_account = empathy_chatroom_get_account (chatroom);
 578                 this_room = empathy_chatroom_get_room (chatroom);
 579
 580                 if (this_account && this_room &&
 581                     empathy_account_equal (account, this_account) &&
 582                     strcmp (this_room, room) == 0) {
 583                         return chatroom;
 584                 }
 585         }
 586
 587         return NULL;
 588 }
 589
 590 GList *
 591 empathy_chatroom_manager_get_chatrooms (EmpathyChatroomManager *manager,
 592                                        McAccount             *account)
 593 {
 594         EmpathyChatroomManagerPriv *priv;
 595         GList                     *chatrooms, *l;
 596
 597         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 598
 599         priv = GET_PRIV (manager);
 600
 601         if (!account) {
 602                 return g_list_copy (priv->chatrooms);
 603         }
 604
 605         chatrooms = NULL;
 606         for (l = priv->chatrooms; l; l = l->next) {
 607                 EmpathyChatroom *chatroom;
 608
 609                 chatroom = l->data;
 610
 611                 if (empathy_account_equal (account,
 612                                           empathy_chatroom_get_account (chatroom))) {
 613                         chatrooms = g_list_append (chatrooms, chatroom);
 614                 }
 615         }
 616
 617         return chatrooms;
 618 }
 619
 620 guint
 621 empathy_chatroom_manager_get_count (EmpathyChatroomManager *manager,
 622                                    McAccount             *account)
 623 {
 624         EmpathyChatroomManagerPriv *priv;
 625         GList                     *l;
 626         guint                      count = 0;
 627
 628         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), 0);
 629
 630         priv = GET_PRIV (manager);
 631
 632         if (!account) {
 633                 return g_list_length (priv->chatrooms);
 634         }
 635
 636         for (l = priv->chatrooms; l; l = l->next) {
 637                 EmpathyChatroom *chatroom;
 638
 639                 chatroom = l->data;
 640
 641                 if (empathy_account_equal (account,
 642                                            empathy_chatroom_get_account (chatroom))) {
 643                         count++;
 644                 }
 645         }
 646
 647         return count;
 648 }
 649
 650 static void
 651 chatroom_manager_chat_destroyed_cb (EmpathyTpChat *chat,
 652   gpointer manager)
 653 {
 654   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 655   GList *l;
 656
 657   for (l = priv->chatrooms; l; l = l->next)
 658     {
 659       EmpathyChatroom *chatroom = l->data;
 660
 661       if (empathy_chatroom_get_tp_chat (chatroom) != chat)
 662         continue;
 663
 664       empathy_chatroom_set_tp_chat (chatroom, NULL);
 665
 666       if (!empathy_chatroom_is_favorite (chatroom))
 667         {
 668           /* Remove the chatroom from the list, unless it's in the list of
 669            * favourites..
 670            * FIXME this policy should probably not be in libempathy */
 671           chatroom_manager_remove_link (manager, l);
 672         }
 673
 674       break;
 675     }
 676 }
 677
 678 static void
 679 chatroom_manager_observe_channel_cb (EmpathyDispatcher *dispatcher,
 680   EmpathyDispatchOperation *operation, gpointer manager)
 681 {
 682   EmpathyChatroomManagerPriv *priv = GET_PRIV (manager);
 683   EmpathyChatroom *chatroom;
 684   TpChannel *channel;
 685   EmpathyTpChat *chat;
 686   const gchar *roomname;
 687   GQuark channel_type;
 688   TpHandleType handle_type;
 689   McAccount *account;
 690   TpConnection *connection;
 691
 692   channel_type = empathy_dispatch_operation_get_channel_type_id (operation);
 693
 694   /* Observe Text channels to rooms only */
 695   if (channel_type != TP_IFACE_QUARK_CHANNEL_TYPE_TEXT)
 696     return;
 697
 698   channel = empathy_dispatch_operation_get_channel (operation);
 699   tp_channel_get_handle (channel, &handle_type);
 700
 701   if (handle_type != TP_HANDLE_TYPE_ROOM)
 702     return;
 703
 704   chat = EMPATHY_TP_CHAT (
 705     empathy_dispatch_operation_get_channel_wrapper (operation));
 706   connection = empathy_tp_chat_get_connection (chat);
 707   account = empathy_account_manager_get_account (priv->account_manager,
 708       connection);
 709
 710   roomname = empathy_tp_chat_get_id (chat);
 711
 712   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 713
 714   if (chatroom == NULL)
 715     {
 716       chatroom = empathy_chatroom_new_full (account, roomname, roomname,
 717         FALSE);
 718       empathy_chatroom_set_tp_chat (chatroom, chat);
 719       empathy_chatroom_manager_add (manager, chatroom);
 720       g_object_unref (chatroom);
 721     }
 722   else
 723     {
 724         empathy_chatroom_set_tp_chat (chatroom, chat);
 725     }
 726
 727   /* A TpChat is always destroyed as it only gets unreffed after the channel
 728    * has been invalidated in the dispatcher..  */
 729   g_signal_connect (chat, "destroy",
 730     G_CALLBACK (chatroom_manager_chat_destroyed_cb),
 731     manager);
 732 }
 733
 734 void
 735 empathy_chatroom_manager_observe (EmpathyChatroomManager *manager,
 736   EmpathyDispatcher *dispatcher)
 737 {
 738   g_signal_connect (dispatcher, "observe",
 739     G_CALLBACK (chatroom_manager_observe_channel_cb), manager);
 740 }