libempathy/empathy-chatroom-manager.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2004-2007 Imendio AB
   4  * Copyright (C) 2007-2008 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  *
  21  * Authors: Xavier Claessens <xclaesse@gmail.com>
  22  *          Martyn Russell <martyn@imendio.com>
  23  */
  24
  25 #include "config.h"
  26
  27 #include <string.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30
  31 #include <libxml/parser.h>
  32 #include <libxml/tree.h>
  33
  34 #include "empathy-tp-chat.h"
  35 #include "empathy-chatroom-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         GList      *chatrooms;
  50   gchar *file;
  51   /* source id of the autosave timer */
  52   gint save_timer_id;
  53 } EmpathyChatroomManagerPriv;
  54
  55 static void     chatroom_manager_finalize          (GObject                    *object);
  56 static gboolean chatroom_manager_get_all           (EmpathyChatroomManager      *manager);
  57 static gboolean chatroom_manager_file_parse        (EmpathyChatroomManager      *manager,
  58                                                     const gchar                *filename);
  59 static void     chatroom_manager_parse_chatroom    (EmpathyChatroomManager      *manager,
  60                                                     xmlNodePtr                  node);
  61 static gboolean chatroom_manager_file_save         (EmpathyChatroomManager      *manager);
  62 static void reset_save_timeout (EmpathyChatroomManager *self);
  63
  64 enum {
  65         CHATROOM_ADDED,
  66         CHATROOM_REMOVED,
  67         LAST_SIGNAL
  68 };
  69
  70 static guint signals[LAST_SIGNAL];
  71
  72 /* properties */
  73 enum
  74 {
  75   PROP_FILE = 1,
  76   LAST_PROPERTY
  77 };
  78
  79 G_DEFINE_TYPE (EmpathyChatroomManager, empathy_chatroom_manager, G_TYPE_OBJECT);
  80
  81 static void
  82 empathy_chatroom_manager_get_property (GObject *object,
  83                                        guint property_id,
  84                                        GValue *value,
  85                                        GParamSpec *pspec)
  86 {
  87   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
  88   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
  89
  90   switch (property_id)
  91     {
  92       case PROP_FILE:
  93         g_value_set_string (value, priv->file);
  94         break;
  95       default:
  96         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
  97         break;
  98     }
  99 }
 100
 101 static void
 102 empathy_chatroom_manager_set_property (GObject *object,
 103                                        guint property_id,
 104                                        const GValue *value,
 105                                        GParamSpec *pspec)
 106 {
 107   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 108   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 109
 110   switch (property_id)
 111     {
 112       case PROP_FILE:
 113         g_free (priv->file);
 114         priv->file = g_value_dup_string (value);
 115         break;
 116       default:
 117         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 118         break;
 119     }
 120 }
 121
 122 static GObject *
 123 empathy_chatroom_manager_constructor (GType type,
 124                                       guint n_props,
 125                                       GObjectConstructParam *props)
 126 {
 127   GObject *obj;
 128   EmpathyChatroomManager *self;
 129   EmpathyChatroomManagerPriv *priv;
 130
 131   if (chatroom_manager_singleton != NULL)
 132     return g_object_ref (chatroom_manager_singleton);
 133
 134   /* Parent constructor chain */
 135   obj = G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->
 136         constructor (type, n_props, props);
 137
 138   self = EMPATHY_CHATROOM_MANAGER (obj);
 139   priv = GET_PRIV (self);
 140
 141   chatroom_manager_singleton = self;
 142   g_object_add_weak_pointer (obj, (gpointer) &chatroom_manager_singleton);
 143
 144   if (priv->file == NULL)
 145     {
 146       /* Set the default file path */
 147       gchar *dir;
 148
 149       dir = g_build_filename (g_get_home_dir (), ".gnome2", PACKAGE_NAME, NULL);
 150       if (!g_file_test (dir, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))
 151         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 152
 153       priv->file = g_build_filename (dir, CHATROOMS_XML_FILENAME, NULL);
 154       g_free (dir);
 155     }
 156
 157   chatroom_manager_get_all (self);
 158   return obj;
 159 }
 160
 161 static void
 162 empathy_chatroom_manager_class_init (EmpathyChatroomManagerClass *klass)
 163 {
 164         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 165   GParamSpec *param_spec;
 166
 167   object_class->constructor = empathy_chatroom_manager_constructor;
 168   object_class->get_property = empathy_chatroom_manager_get_property;
 169   object_class->set_property = empathy_chatroom_manager_set_property;
 170         object_class->finalize = chatroom_manager_finalize;
 171
 172   param_spec = g_param_spec_string (
 173       "file",
 174       "path of the favorite file",
 175       "The path of the XML file containing user's favorites",
 176       NULL,
 177       G_PARAM_CONSTRUCT_ONLY |
 178       G_PARAM_READWRITE |
 179       G_PARAM_STATIC_NAME |
 180       G_PARAM_STATIC_NICK |
 181       G_PARAM_STATIC_BLURB);
 182   g_object_class_install_property (object_class, PROP_FILE, param_spec);
 183
 184         signals[CHATROOM_ADDED] =
 185                 g_signal_new ("chatroom-added",
 186                               G_TYPE_FROM_CLASS (klass),
 187                               G_SIGNAL_RUN_LAST,
 188                               0,
 189                               NULL, NULL,
 190                               g_cclosure_marshal_VOID__OBJECT,
 191                               G_TYPE_NONE,
 192                               1, EMPATHY_TYPE_CHATROOM);
 193         signals[CHATROOM_REMOVED] =
 194                 g_signal_new ("chatroom-removed",
 195                               G_TYPE_FROM_CLASS (klass),
 196                               G_SIGNAL_RUN_LAST,
 197                               0,
 198                               NULL, NULL,
 199                               g_cclosure_marshal_VOID__OBJECT,
 200                               G_TYPE_NONE,
 201                               1, EMPATHY_TYPE_CHATROOM);
 202
 203         g_type_class_add_private (object_class,
 204                                   sizeof (EmpathyChatroomManagerPriv));
 205 }
 206
 207 static void
 208 empathy_chatroom_manager_init (EmpathyChatroomManager *manager)
 209 {
 210         EmpathyChatroomManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 211                 EMPATHY_TYPE_CHATROOM_MANAGER, EmpathyChatroomManagerPriv);
 212
 213         manager->priv = priv;
 214 }
 215
 216 static void
 217 chatroom_changed_cb (EmpathyChatroom *chatroom,
 218                      GParamSpec *spec,
 219                      EmpathyChatroomManager *self)
 220 {
 221   reset_save_timeout (self);
 222 }
 223
 224 static void
 225 chatroom_manager_finalize (GObject *object)
 226 {
 227   EmpathyChatroomManager *self = EMPATHY_CHATROOM_MANAGER (object);
 228         EmpathyChatroomManagerPriv *priv;
 229   GList *l;
 230
 231         priv = GET_PRIV (object);
 232
 233   if (priv->save_timer_id > 0)
 234     {
 235       /* have to save before destroy the object */
 236       g_source_remove (priv->save_timer_id);
 237       priv->save_timer_id = 0;
 238       chatroom_manager_file_save (self);
 239     }
 240
 241   for (l = priv->chatrooms; l != NULL; l = g_list_next (l))
 242     {
 243       EmpathyChatroom *chatroom = l->data;
 244
 245       g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 246           self);
 247
 248       g_object_unref (chatroom);
 249     }
 250
 251         g_list_free (priv->chatrooms);
 252   g_free (priv->file);
 253
 254         (G_OBJECT_CLASS (empathy_chatroom_manager_parent_class)->finalize) (object);
 255 }
 256
 257 EmpathyChatroomManager *
 258 empathy_chatroom_manager_dup_singleton (const gchar *file)
 259 {
 260         return EMPATHY_CHATROOM_MANAGER (g_object_new (EMPATHY_TYPE_CHATROOM_MANAGER,
 261                 "file", file, NULL));
 262 }
 263
 264 static gboolean
 265 save_timeout (EmpathyChatroomManager *self)
 266 {
 267   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 268
 269   priv->save_timer_id = 0;
 270   chatroom_manager_file_save (self);
 271
 272   return FALSE;
 273 }
 274
 275 static void
 276 reset_save_timeout (EmpathyChatroomManager *self)
 277 {
 278   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 279
 280   if (priv->save_timer_id > 0)
 281     {
 282       g_source_remove (priv->save_timer_id);
 283     }
 284
 285   priv->save_timer_id = g_timeout_add_seconds (SAVE_TIMER,
 286       (GSourceFunc) save_timeout, self);
 287 }
 288
 289 static void
 290 add_chatroom (EmpathyChatroomManager *self,
 291               EmpathyChatroom *chatroom)
 292 {
 293   EmpathyChatroomManagerPriv *priv = GET_PRIV (self);
 294
 295   priv->chatrooms = g_list_prepend (priv->chatrooms, g_object_ref (chatroom));
 296
 297   g_signal_connect (chatroom, "notify",
 298       G_CALLBACK (chatroom_changed_cb), self);
 299 }
 300
 301 gboolean
 302 empathy_chatroom_manager_add (EmpathyChatroomManager *manager,
 303                              EmpathyChatroom        *chatroom)
 304 {
 305         EmpathyChatroomManagerPriv *priv;
 306
 307         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), FALSE);
 308         g_return_val_if_fail (EMPATHY_IS_CHATROOM (chatroom), FALSE);
 309
 310         priv = GET_PRIV (manager);
 311
 312         /* don't add more than once */
 313         if (!empathy_chatroom_manager_find (manager,
 314                                            empathy_chatroom_get_account (chatroom),
 315                                            empathy_chatroom_get_room (chatroom))) {
 316       gboolean favorite;
 317
 318       g_object_get (chatroom, "favorite", &favorite, NULL);
 319
 320     add_chatroom (manager, chatroom);
 321
 322     if (favorite)
 323       {
 324         reset_save_timeout (manager);
 325       }
 326
 327                 g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 328
 329                 return TRUE;
 330         }
 331
 332         return FALSE;
 333 }
 334
 335 void
 336 empathy_chatroom_manager_remove (EmpathyChatroomManager *manager,
 337                                 EmpathyChatroom        *chatroom)
 338 {
 339         EmpathyChatroomManagerPriv *priv;
 340         GList                     *l;
 341
 342         g_return_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager));
 343         g_return_if_fail (EMPATHY_IS_CHATROOM (chatroom));
 344
 345         priv = GET_PRIV (manager);
 346
 347         for (l = priv->chatrooms; l; l = l->next) {
 348                 EmpathyChatroom *this_chatroom;
 349
 350                 this_chatroom = l->data;
 351
 352                 if (this_chatroom == chatroom ||
 353         empathy_chatroom_equal (chatroom, this_chatroom)) {
 354         gboolean favorite;
 355                         priv->chatrooms = g_list_delete_link (priv->chatrooms, l);
 356
 357       g_object_get (chatroom, "favorite", &favorite, NULL);
 358
 359       if (favorite)
 360         {
 361           reset_save_timeout (manager);
 362         }
 363
 364                         g_signal_emit (manager, signals[CHATROOM_REMOVED], 0, this_chatroom);
 365
 366       g_signal_handlers_disconnect_by_func (chatroom, chatroom_changed_cb,
 367           manager);
 368
 369                         g_object_unref (this_chatroom);
 370                         break;
 371                 }
 372         }
 373 }
 374
 375 EmpathyChatroom *
 376 empathy_chatroom_manager_find (EmpathyChatroomManager *manager,
 377                               McAccount             *account,
 378                               const gchar           *room)
 379 {
 380         EmpathyChatroomManagerPriv *priv;
 381         GList                     *l;
 382
 383         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 384         g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);
 385         g_return_val_if_fail (room != NULL, NULL);
 386
 387         priv = GET_PRIV (manager);
 388
 389         for (l = priv->chatrooms; l; l = l->next) {
 390                 EmpathyChatroom *chatroom;
 391                 McAccount      *this_account;
 392                 const gchar    *this_room;
 393
 394                 chatroom = l->data;
 395                 this_account = empathy_chatroom_get_account (chatroom);
 396                 this_room = empathy_chatroom_get_room (chatroom);
 397
 398                 if (this_account && this_room &&
 399                     empathy_account_equal (account, this_account) &&
 400                     strcmp (this_room, room) == 0) {
 401                         return chatroom;
 402                 }
 403         }
 404
 405         return NULL;
 406 }
 407
 408 GList *
 409 empathy_chatroom_manager_get_chatrooms (EmpathyChatroomManager *manager,
 410                                        McAccount             *account)
 411 {
 412         EmpathyChatroomManagerPriv *priv;
 413         GList                     *chatrooms, *l;
 414
 415         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), NULL);
 416
 417         priv = GET_PRIV (manager);
 418
 419         if (!account) {
 420                 return g_list_copy (priv->chatrooms);
 421         }
 422
 423         chatrooms = NULL;
 424         for (l = priv->chatrooms; l; l = l->next) {
 425                 EmpathyChatroom *chatroom;
 426
 427                 chatroom = l->data;
 428
 429                 if (empathy_account_equal (account,
 430                                           empathy_chatroom_get_account (chatroom))) {
 431                         chatrooms = g_list_append (chatrooms, chatroom);
 432                 }
 433         }
 434
 435         return chatrooms;
 436 }
 437
 438 guint
 439 empathy_chatroom_manager_get_count (EmpathyChatroomManager *manager,
 440                                    McAccount             *account)
 441 {
 442         EmpathyChatroomManagerPriv *priv;
 443         GList                     *l;
 444         guint                      count = 0;
 445
 446         g_return_val_if_fail (EMPATHY_IS_CHATROOM_MANAGER (manager), 0);
 447
 448         priv = GET_PRIV (manager);
 449
 450         if (!account) {
 451                 return g_list_length (priv->chatrooms);
 452         }
 453
 454         for (l = priv->chatrooms; l; l = l->next) {
 455                 EmpathyChatroom *chatroom;
 456
 457                 chatroom = l->data;
 458
 459                 if (empathy_account_equal (account,
 460                                           empathy_chatroom_get_account (chatroom))) {
 461                         count++;
 462                 }
 463         }
 464
 465         return count;
 466 }
 467
 468 /*
 469  * API to save/load and parse the chatrooms file.
 470  */
 471
 472 static gboolean
 473 chatroom_manager_get_all (EmpathyChatroomManager *manager)
 474 {
 475         EmpathyChatroomManagerPriv *priv;
 476
 477         priv = GET_PRIV (manager);
 478
 479         /* read file in */
 480         if (g_file_test (priv->file, G_FILE_TEST_EXISTS) &&
 481             !chatroom_manager_file_parse (manager, priv->file))
 482     return FALSE;
 483
 484         return TRUE;
 485 }
 486
 487 static gboolean
 488 chatroom_manager_file_parse (EmpathyChatroomManager *manager,
 489                              const gchar           *filename)
 490 {
 491         EmpathyChatroomManagerPriv *priv;
 492         xmlParserCtxtPtr           ctxt;
 493         xmlDocPtr                  doc;
 494         xmlNodePtr                 chatrooms;
 495         xmlNodePtr                 node;
 496
 497         priv = GET_PRIV (manager);
 498
 499         DEBUG ("Attempting to parse file:'%s'...", filename);
 500
 501         ctxt = xmlNewParserCtxt ();
 502
 503         /* Parse and validate the file. */
 504         doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
 505         if (!doc) {
 506                 g_warning ("Failed to parse file:'%s'", filename);
 507                 xmlFreeParserCtxt (ctxt);
 508                 return FALSE;
 509         }
 510
 511         if (!empathy_xml_validate (doc, CHATROOMS_DTD_FILENAME)) {
 512                 g_warning ("Failed to validate file:'%s'", filename);
 513                 xmlFreeDoc(doc);
 514                 xmlFreeParserCtxt (ctxt);
 515                 return FALSE;
 516         }
 517
 518         /* The root node, chatrooms. */
 519         chatrooms = xmlDocGetRootElement (doc);
 520
 521         for (node = chatrooms->children; node; node = node->next) {
 522                 if (strcmp ((gchar *) node->name, "chatroom") == 0) {
 523                         chatroom_manager_parse_chatroom (manager, node);
 524                 }
 525         }
 526
 527         DEBUG ("Parsed %d chatrooms", g_list_length (priv->chatrooms));
 528
 529         xmlFreeDoc(doc);
 530         xmlFreeParserCtxt (ctxt);
 531
 532         return TRUE;
 533 }
 534
 535 static void
 536 chatroom_manager_parse_chatroom (EmpathyChatroomManager *manager,
 537                                  xmlNodePtr             node)
 538 {
 539         EmpathyChatroomManagerPriv *priv;
 540         EmpathyChatroom            *chatroom;
 541         McAccount                 *account;
 542         xmlNodePtr                 child;
 543         gchar                     *str;
 544         gchar                     *name;
 545         gchar                     *room;
 546         gchar                     *account_id;
 547         gboolean                   auto_connect;
 548
 549         priv = GET_PRIV (manager);
 550
 551         /* default values. */
 552         name = NULL;
 553         room = NULL;
 554         auto_connect = TRUE;
 555         account_id = NULL;
 556
 557         for (child = node->children; child; child = child->next) {
 558                 gchar *tag;
 559
 560                 if (xmlNodeIsText (child)) {
 561                         continue;
 562                 }
 563
 564                 tag = (gchar *) child->name;
 565                 str = (gchar *) xmlNodeGetContent (child);
 566
 567                 if (strcmp (tag, "name") == 0) {
 568                         name = g_strdup (str);
 569                 }
 570                 else if (strcmp (tag, "room") == 0) {
 571                         room = g_strdup (str);
 572                 }
 573                 else if (strcmp (tag, "auto_connect") == 0) {
 574                         if (strcmp (str, "yes") == 0) {
 575                                 auto_connect = TRUE;
 576                         } else {
 577                                 auto_connect = FALSE;
 578                         }
 579                 }
 580                 else if (strcmp (tag, "account") == 0) {
 581                         account_id = g_strdup (str);
 582                 }
 583
 584                 xmlFree (str);
 585         }
 586
 587         account = mc_account_lookup (account_id);
 588         if (!account) {
 589                 g_free (name);
 590                 g_free (room);
 591                 g_free (account_id);
 592                 return;
 593         }
 594
 595         chatroom = empathy_chatroom_new_full (account, room, name, auto_connect);
 596   g_object_set (chatroom, "favorite", TRUE, NULL);
 597   add_chatroom (manager, chatroom);
 598         g_signal_emit (manager, signals[CHATROOM_ADDED], 0, chatroom);
 599
 600         g_object_unref (account);
 601         g_free (name);
 602         g_free (room);
 603         g_free (account_id);
 604 }
 605
 606 static gboolean
 607 chatroom_manager_file_save (EmpathyChatroomManager *manager)
 608 {
 609         EmpathyChatroomManagerPriv *priv;
 610         xmlDocPtr                  doc;
 611         xmlNodePtr                 root;
 612         GList                     *l;
 613
 614         priv = GET_PRIV (manager);
 615
 616         doc = xmlNewDoc ("1.0");
 617         root = xmlNewNode (NULL, "chatrooms");
 618         xmlDocSetRootElement (doc, root);
 619
 620         for (l = priv->chatrooms; l; l = l->next) {
 621                 EmpathyChatroom *chatroom;
 622                 xmlNodePtr      node;
 623                 const gchar    *account_id;
 624     gboolean favorite;
 625
 626                 chatroom = l->data;
 627
 628     g_object_get (chatroom, "favorite", &favorite, NULL);
 629     if (!favorite)
 630       continue;
 631
 632                 account_id = mc_account_get_unique_name (empathy_chatroom_get_account (chatroom));
 633
 634                 node = xmlNewChild (root, NULL, "chatroom", NULL);
 635                 xmlNewTextChild (node, NULL, "name", empathy_chatroom_get_name (chatroom));
 636                 xmlNewTextChild (node, NULL, "room", empathy_chatroom_get_room (chatroom));
 637                 xmlNewTextChild (node, NULL, "account", account_id);
 638                 xmlNewTextChild (node, NULL, "auto_connect", empathy_chatroom_get_auto_connect (chatroom) ? "yes" : "no");
 639         }
 640
 641         /* Make sure the XML is indented properly */
 642         xmlIndentTreeOutput = 1;
 643
 644         DEBUG ("Saving file:'%s'", priv->file);
 645         xmlSaveFormatFileEnc (priv->file, doc, "utf-8", 1);
 646         xmlFreeDoc (doc);
 647
 648         xmlCleanupParser ();
 649         xmlMemoryDump ();
 650
 651         return TRUE;
 652 }
 653
 654 static void
 655 chatroom_manager_chat_destroyed_cb (EmpathyTpChat *chat,
 656   gpointer user_data)
 657 {
 658   EmpathyChatroomManager *manager = EMPATHY_CHATROOM_MANAGER (user_data);
 659   McAccount *account = empathy_tp_chat_get_account (chat);
 660   EmpathyChatroom *chatroom;
 661   const gchar *roomname;
 662   gboolean favorite;
 663
 664   roomname = empathy_tp_chat_get_id (chat);
 665   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 666
 667   if (chatroom == NULL)
 668     return;
 669
 670   g_object_set (chatroom, "tp-chat", NULL, NULL);
 671   g_object_get (chatroom, "favorite", &favorite, NULL);
 672
 673   if (!favorite)
 674     {
 675       /* Remove the chatroom from the list, unless it's in the list of
 676        * favourites..
 677        * FIXME this policy should probably not be in libempathy */
 678       empathy_chatroom_manager_remove (manager, chatroom);
 679     }
 680 }
 681
 682 static void
 683 chatroom_manager_observe_channel_cb (EmpathyDispatcher *dispatcher,
 684   EmpathyDispatchOperation *operation, gpointer user_data)
 685 {
 686   EmpathyChatroomManager *manager = EMPATHY_CHATROOM_MANAGER (user_data);
 687   EmpathyChatroom *chatroom;
 688   TpChannel *channel;
 689   EmpathyTpChat *chat;
 690   const gchar *roomname;
 691   GQuark channel_type;
 692   TpHandleType handle_type;
 693   McAccount *account;
 694
 695   channel_type = empathy_dispatch_operation_get_channel_type_id (operation);
 696
 697   /* Observe Text channels to rooms only */
 698   if (channel_type != TP_IFACE_QUARK_CHANNEL_TYPE_TEXT)
 699     return;
 700
 701   channel = empathy_dispatch_operation_get_channel (operation);
 702   tp_channel_get_handle (channel, &handle_type);
 703
 704   if (handle_type != TP_HANDLE_TYPE_ROOM)
 705     return;
 706
 707   chat = EMPATHY_TP_CHAT (
 708     empathy_dispatch_operation_get_channel_wrapper (operation));
 709   account = empathy_tp_chat_get_account (chat);
 710
 711   roomname = empathy_tp_chat_get_id (chat);
 712
 713   chatroom = empathy_chatroom_manager_find (manager, account, roomname);
 714
 715   if (chatroom == NULL)
 716     {
 717       chatroom = empathy_chatroom_new_full (account, roomname, roomname,
 718         FALSE);
 719       g_object_set (G_OBJECT (chatroom), "tp-chat", chat, NULL);
 720       empathy_chatroom_manager_add (manager, chatroom);
 721       g_object_unref (chatroom);
 722     }
 723   else
 724     {
 725       g_object_set (G_OBJECT (chatroom), "tp-chat", chat, NULL);
 726     }
 727
 728   /* A TpChat is always destroyed as it only gets unreffed after the channel
 729    * has been invalidated in the dispatcher..  */
 730   g_signal_connect (chat, "destroy",
 731     G_CALLBACK (chatroom_manager_chat_destroyed_cb),
 732     manager);
 733 }
 734
 735 void
 736 empathy_chatroom_manager_observe (EmpathyChatroomManager *manager,
 737   EmpathyDispatcher *dispatcher)
 738 {
 739   g_signal_connect (dispatcher, "observe",
 740     G_CALLBACK (chatroom_manager_observe_channel_cb), manager);
 741 }