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