libempathy/empathy-tp-chat.c

   1 /*
   2  * Copyright (C) 2007-2012 Collabora Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Xavier Claessens <xclaesse@gmail.com>
  19  */
  20
  21 #include <config.h>
  22
  23 #include <string.h>
  24
  25 #include <extensions/extensions.h>
  26
  27 #include "empathy-tp-chat.h"
  28 #include "empathy-request-util.h"
  29 #include "empathy-time.h"
  30 #include "empathy-utils.h"
  31
  32 #define DEBUG_FLAG EMPATHY_DEBUG_TP | EMPATHY_DEBUG_CHAT
  33 #include "empathy-debug.h"
  34
  35 struct _EmpathyTpChatPrivate
  36 {
  37   TpAccount *account;
  38   EmpathyContact *user;
  39   EmpathyContact *remote_contact;
  40   GList *members;
  41   /* Queue of messages signalled but not acked yet */
  42   GQueue *pending_messages_queue;
  43
  44   /* Subject */
  45   gboolean supports_subject;
  46   gboolean can_set_subject;
  47   gchar *subject;
  48   gchar *subject_actor;
  49
  50   /* Room config (for now, we only track the title and don't support
  51    * setting it) */
  52   gchar *title;
  53
  54   gboolean can_upgrade_to_muc;
  55
  56   GHashTable *messages_being_sent;
  57
  58   /* GSimpleAsyncResult used when preparing EMPATHY_TP_CHAT_FEATURE_CORE */
  59   GSimpleAsyncResult *ready_result;
  60   gboolean preparing_password;
  61 };
  62
  63 enum
  64 {
  65   PROP_0,
  66   PROP_ACCOUNT,
  67   PROP_SELF_CONTACT,
  68   PROP_REMOTE_CONTACT,
  69   PROP_N_MESSAGES_SENDING,
  70   PROP_TITLE,
  71   PROP_SUBJECT,
  72 };
  73
  74 enum
  75 {
  76   MESSAGE_RECEIVED,
  77   SEND_ERROR,
  78   MESSAGE_ACKNOWLEDGED,
  79   SIG_MEMBER_RENAMED,
  80   SIG_MEMBERS_CHANGED,
  81   LAST_SIGNAL
  82 };
  83
  84 static guint signals[LAST_SIGNAL];
  85
  86 G_DEFINE_TYPE (EmpathyTpChat, empathy_tp_chat, TP_TYPE_TEXT_CHANNEL)
  87
  88 static void
  89 tp_chat_set_delivery_status (EmpathyTpChat *self,
  90     const gchar *token,
  91     EmpathyDeliveryStatus delivery_status)
  92 {
  93   TpDeliveryReportingSupportFlags flags =
  94     tp_text_channel_get_delivery_reporting_support (
  95       TP_TEXT_CHANNEL (self));
  96
  97   /* channel must support receiving failures and successes */
  98   if (!tp_str_empty (token) &&
  99       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_FAILURES &&
 100       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_SUCCESSES)
 101     {
 102       DEBUG ("Delivery status (%s) = %u", token, delivery_status);
 103
 104       switch (delivery_status)
 105         {
 106           case EMPATHY_DELIVERY_STATUS_NONE:
 107             g_hash_table_remove (self->priv->messages_being_sent,
 108               token);
 109             break;
 110
 111           default:
 112             g_hash_table_insert (self->priv->messages_being_sent,
 113               g_strdup (token),
 114               GUINT_TO_POINTER (delivery_status));
 115             break;
 116         }
 117
 118     g_object_notify (G_OBJECT (self), "n-messages-sending");
 119   }
 120 }
 121
 122 static void tp_chat_prepare_ready_async (TpProxy *proxy,
 123   const TpProxyFeature *feature,
 124   GAsyncReadyCallback callback,
 125   gpointer user_data);
 126
 127 static void
 128 tp_chat_async_cb (TpChannel *proxy,
 129     const GError *error,
 130     gpointer user_data,
 131     GObject *weak_object)
 132 {
 133   if (error != NULL)
 134     DEBUG ("Error %s: %s", (gchar *) user_data, error->message);
 135 }
 136
 137 static void
 138 create_conference_cb (GObject *source,
 139     GAsyncResult *result,
 140     gpointer user_data)
 141 {
 142   GError *error = NULL;
 143
 144   if (!tp_account_channel_request_create_channel_finish (
 145       TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error))
 146     {
 147       DEBUG ("Failed to create conference channel: %s", error->message);
 148       g_error_free (error);
 149     }
 150 }
 151
 152 void
 153 empathy_tp_chat_add (EmpathyTpChat *self,
 154     EmpathyContact *contact,
 155     const gchar *message)
 156 {
 157   TpChannel *channel = (TpChannel *) self;
 158
 159   if (tp_proxy_has_interface_by_id (self,
 160     TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
 161     {
 162       TpHandle handle;
 163       GArray handles = {(gchar *) &handle, 1};
 164
 165       g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 166
 167       handle = empathy_contact_get_handle (contact);
 168       tp_cli_channel_interface_group_call_add_members (channel,
 169         -1, &handles, NULL, NULL, NULL, NULL, NULL);
 170     }
 171   else if (self->priv->can_upgrade_to_muc)
 172     {
 173       TpAccountChannelRequest *req;
 174       GHashTable *props;
 175       const char *object_path;
 176       GPtrArray channels = { (gpointer *) &object_path, 1 };
 177       const char *invitees[2] = { NULL, };
 178       TpAccount *account;
 179
 180       invitees[0] = empathy_contact_get_id (contact);
 181       object_path = tp_proxy_get_object_path (self);
 182
 183       props = tp_asv_new (
 184           TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 185               TP_IFACE_CHANNEL_TYPE_TEXT,
 186           TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT,
 187               TP_HANDLE_TYPE_NONE,
 188           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS,
 189               TP_ARRAY_TYPE_OBJECT_PATH_LIST, &channels,
 190           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_INVITEE_IDS,
 191               G_TYPE_STRV, invitees,
 192           /* FIXME: InvitationMessage ? */
 193           NULL);
 194
 195       account = empathy_tp_chat_get_account (self);
 196
 197       req = tp_account_channel_request_new (account, props,
 198         TP_USER_ACTION_TIME_NOT_USER_ACTION);
 199
 200       /* Although this is a MUC, it's anonymous, so CreateChannel is
 201        * valid. */
 202       tp_account_channel_request_create_channel_async (req,
 203           EMPATHY_CHAT_BUS_NAME, NULL, create_conference_cb, NULL);
 204
 205       g_object_unref (req);
 206       g_hash_table_unref (props);
 207     }
 208   else
 209     {
 210       g_warning ("Cannot add to this channel");
 211     }
 212 }
 213
 214 GList *
 215 empathy_tp_chat_get_members (EmpathyTpChat *self)
 216 {
 217   GList *members = NULL;
 218
 219   if (self->priv->members)
 220     {
 221       members = g_list_copy (self->priv->members);
 222       g_list_foreach (members, (GFunc) g_object_ref, NULL);
 223     }
 224   else
 225     {
 226       members = g_list_prepend (members, g_object_ref (self->priv->user));
 227
 228       if (self->priv->remote_contact != NULL)
 229         members = g_list_prepend (members,
 230             g_object_ref (self->priv->remote_contact));
 231     }
 232
 233   return members;
 234 }
 235
 236 static void
 237 check_ready (EmpathyTpChat *self)
 238 {
 239   if (self->priv->ready_result == NULL)
 240     return;
 241
 242   DEBUG ("Ready");
 243
 244   g_simple_async_result_complete_in_idle (self->priv->ready_result);
 245   tp_clear_object (&self->priv->ready_result);
 246 }
 247
 248 static void
 249 tp_chat_build_message (EmpathyTpChat *self,
 250     TpMessage *msg,
 251     gboolean incoming)
 252 {
 253   EmpathyMessage *message;
 254   TpContact *sender;
 255
 256   message = empathy_message_new_from_tp_message (msg, incoming);
 257   /* FIXME: this is actually a lie for incoming messages. */
 258   empathy_message_set_receiver (message, self->priv->user);
 259
 260   sender = tp_signalled_message_get_sender (msg);
 261   g_assert (sender != NULL);
 262
 263   if (tp_contact_get_handle (sender) == 0)
 264     {
 265       empathy_message_set_sender (message, self->priv->user);
 266     }
 267   else
 268     {
 269       EmpathyContact *contact;
 270
 271       contact = empathy_contact_dup_from_tp_contact (sender);
 272
 273       empathy_message_set_sender (message, contact);
 274
 275       g_object_unref (contact);
 276     }
 277
 278   g_queue_push_tail (self->priv->pending_messages_queue, message);
 279   g_signal_emit (self, signals[MESSAGE_RECEIVED], 0, message);
 280 }
 281
 282 static void
 283 handle_delivery_report (EmpathyTpChat *self,
 284     TpMessage *message)
 285 {
 286   TpDeliveryStatus delivery_status;
 287   const GHashTable *header;
 288   TpChannelTextSendError delivery_error;
 289   gboolean valid;
 290   GPtrArray *echo;
 291   const gchar *message_body = NULL;
 292   const gchar *delivery_dbus_error;
 293   const gchar *delivery_token = NULL;
 294
 295   header = tp_message_peek (message, 0);
 296   if (header == NULL)
 297     goto out;
 298
 299   delivery_token = tp_asv_get_string (header, "delivery-token");
 300   delivery_status = tp_asv_get_uint32 (header, "delivery-status", &valid);
 301
 302   if (!valid)
 303     {
 304       goto out;
 305     }
 306   else if (delivery_status == TP_DELIVERY_STATUS_ACCEPTED)
 307     {
 308       DEBUG ("Accepted %s", delivery_token);
 309       tp_chat_set_delivery_status (self, delivery_token,
 310         EMPATHY_DELIVERY_STATUS_ACCEPTED);
 311       goto out;
 312     }
 313   else if (delivery_status == TP_DELIVERY_STATUS_DELIVERED)
 314     {
 315       DEBUG ("Delivered %s", delivery_token);
 316       tp_chat_set_delivery_status (self, delivery_token,
 317         EMPATHY_DELIVERY_STATUS_NONE);
 318       goto out;
 319     }
 320   else if (delivery_status != TP_DELIVERY_STATUS_PERMANENTLY_FAILED &&
 321        delivery_status != TP_DELIVERY_STATUS_TEMPORARILY_FAILED)
 322     {
 323       goto out;
 324     }
 325
 326   delivery_error = tp_asv_get_uint32 (header, "delivery-error", &valid);
 327   if (!valid)
 328     delivery_error = TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 329
 330   delivery_dbus_error = tp_asv_get_string (header, "delivery-dbus-error");
 331
 332   /* TODO: ideally we should use tp-glib API giving us the echoed message as a
 333    * TpMessage. (fdo #35884) */
 334   echo = tp_asv_get_boxed (header, "delivery-echo",
 335     TP_ARRAY_TYPE_MESSAGE_PART_LIST);
 336   if (echo != NULL && echo->len >= 2)
 337     {
 338       const GHashTable *echo_body;
 339
 340       echo_body = g_ptr_array_index (echo, 1);
 341       if (echo_body != NULL)
 342         message_body = tp_asv_get_string (echo_body, "content");
 343     }
 344
 345   tp_chat_set_delivery_status (self, delivery_token,
 346       EMPATHY_DELIVERY_STATUS_NONE);
 347   g_signal_emit (self, signals[SEND_ERROR], 0, message_body,
 348       delivery_error, delivery_dbus_error);
 349
 350 out:
 351   tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 352     message, NULL, NULL);
 353 }
 354
 355 static void
 356 handle_incoming_message (EmpathyTpChat *self,
 357     TpMessage *message,
 358     gboolean pending)
 359 {
 360   gchar *message_body;
 361
 362   if (tp_message_is_delivery_report (message))
 363     {
 364       handle_delivery_report (self, message);
 365       return;
 366     }
 367
 368   message_body = tp_message_to_text (message, NULL);
 369
 370   DEBUG ("Message %s (channel %s): %s",
 371     pending ? "pending" : "received",
 372     tp_proxy_get_object_path (self), message_body);
 373
 374   if (message_body == NULL)
 375     {
 376       DEBUG ("Empty message with NonTextContent, ignoring and acking.");
 377
 378       tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 379         message, NULL, NULL);
 380       return;
 381     }
 382
 383   tp_chat_build_message (self, message, TRUE);
 384
 385   g_free (message_body);
 386 }
 387
 388 static void
 389 message_received_cb (TpTextChannel *channel,
 390     TpMessage *message,
 391     EmpathyTpChat *self)
 392 {
 393   handle_incoming_message (self, message, FALSE);
 394 }
 395
 396 static gboolean
 397 find_pending_message_func (gconstpointer a,
 398     gconstpointer b)
 399 {
 400   EmpathyMessage *msg = (EmpathyMessage *) a;
 401   TpMessage *message = (TpMessage *) b;
 402
 403   if (empathy_message_get_tp_message (msg) == message)
 404     return 0;
 405
 406   return -1;
 407 }
 408
 409 static void
 410 pending_message_removed_cb (TpTextChannel   *channel,
 411     TpMessage *message,
 412     EmpathyTpChat *self)
 413 {
 414   GList *m;
 415
 416   m = g_queue_find_custom (self->priv->pending_messages_queue, message,
 417       find_pending_message_func);
 418
 419   if (m == NULL)
 420     return;
 421
 422   g_signal_emit (self, signals[MESSAGE_ACKNOWLEDGED], 0, m->data);
 423
 424   g_object_unref (m->data);
 425   g_queue_delete_link (self->priv->pending_messages_queue, m);
 426 }
 427
 428 static void
 429 message_sent_cb (TpTextChannel *channel,
 430     TpMessage *message,
 431     TpMessageSendingFlags flags,
 432     gchar *token,
 433     EmpathyTpChat *self)
 434 {
 435   gchar *message_body;
 436
 437   message_body = tp_message_to_text (message, NULL);
 438
 439   DEBUG ("Message sent: %s", message_body);
 440
 441   tp_chat_build_message (self, message, FALSE);
 442
 443   g_free (message_body);
 444 }
 445
 446 static TpChannelTextSendError
 447 error_to_text_send_error (GError *error)
 448 {
 449   if (error->domain != TP_ERROR)
 450     return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 451
 452   switch (error->code)
 453     {
 454       case TP_ERROR_OFFLINE:
 455         return TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE;
 456       case TP_ERROR_INVALID_HANDLE:
 457         return TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT;
 458       case TP_ERROR_PERMISSION_DENIED:
 459         return TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED;
 460       case TP_ERROR_NOT_IMPLEMENTED:
 461         return TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED;
 462     }
 463
 464   return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 465 }
 466
 467 static void
 468 message_send_cb (GObject *source,
 469      GAsyncResult *result,
 470      gpointer user_data)
 471 {
 472   EmpathyTpChat *self = user_data;
 473   TpTextChannel *channel = (TpTextChannel *) source;
 474   gchar *token = NULL;
 475   GError *error = NULL;
 476
 477   if (!tp_text_channel_send_message_finish (channel, result, &token, &error))
 478     {
 479       DEBUG ("Error: %s", error->message);
 480
 481       /* FIXME: we should use the body of the message as first argument of the
 482        * signal but can't easily get it as we just get a user_data pointer. Once
 483        * we'll have rebased EmpathyTpChat on top of TpTextChannel we'll be able
 484        * to use the user_data pointer to pass the message and fix this. */
 485       g_signal_emit (self, signals[SEND_ERROR], 0,
 486                NULL, error_to_text_send_error (error), NULL);
 487
 488       g_error_free (error);
 489     }
 490
 491   tp_chat_set_delivery_status (self, token,
 492     EMPATHY_DELIVERY_STATUS_SENDING);
 493   g_free (token);
 494 }
 495
 496 static void
 497 list_pending_messages (EmpathyTpChat *self)
 498 {
 499   GList *messages, *l;
 500
 501   messages = tp_text_channel_dup_pending_messages (TP_TEXT_CHANNEL (self));
 502
 503   for (l = messages; l != NULL; l = g_list_next (l))
 504     {
 505       TpMessage *message = l->data;
 506
 507       handle_incoming_message (self, message, FALSE);
 508     }
 509
 510   g_list_free_full (messages, g_object_unref);
 511 }
 512
 513 static void
 514 update_subject (EmpathyTpChat *self,
 515     GHashTable *properties)
 516 {
 517   gboolean can_set, valid;
 518   const gchar *subject;
 519
 520   can_set = tp_asv_get_boolean (properties, "CanSet", &valid);
 521   if (valid)
 522     self->priv->can_set_subject = can_set;
 523
 524   subject = tp_asv_get_string (properties, "Subject");
 525   if (subject != NULL)
 526     {
 527       const gchar *actor;
 528
 529       g_free (self->priv->subject);
 530       self->priv->subject = g_strdup (subject);
 531
 532       /* If the actor is included with this update, use it;
 533        * otherwise, clear it to avoid showing stale information.
 534        * Why might it not be included? When you join an IRC channel,
 535        * you get a pair of messages: first, the current topic; next,
 536        * who set it, and when. Idle reports these in two separate
 537        * signals.
 538        */
 539       actor = tp_asv_get_string (properties, "Actor");
 540       g_free (self->priv->subject_actor);
 541       self->priv->subject_actor = g_strdup (actor);
 542
 543       g_object_notify (G_OBJECT (self), "subject");
 544     }
 545
 546   /* TODO: track Timestamp. */
 547 }
 548
 549 static void
 550 tp_chat_get_all_subject_cb (TpProxy *proxy,
 551     GHashTable *properties,
 552     const GError *error,
 553     gpointer user_data G_GNUC_UNUSED,
 554     GObject *chat)
 555 {
 556   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 557
 558   if (error != NULL)
 559     {
 560       DEBUG ("Error fetching subject: %s", error->message);
 561       return;
 562     }
 563
 564   self->priv->supports_subject = TRUE;
 565   update_subject (self, properties);
 566 }
 567
 568 static void
 569 update_title (EmpathyTpChat *self,
 570     GHashTable *properties)
 571 {
 572   const gchar *title = tp_asv_get_string (properties, "Title");
 573
 574   if (title != NULL)
 575     {
 576       if (tp_str_empty (title))
 577         title = NULL;
 578
 579       g_free (self->priv->title);
 580       self->priv->title = g_strdup (title);
 581       g_object_notify (G_OBJECT (self), "title");
 582     }
 583 }
 584
 585 static void
 586 tp_chat_get_all_room_config_cb (TpProxy *proxy,
 587     GHashTable *properties,
 588     const GError *error,
 589     gpointer user_data G_GNUC_UNUSED,
 590     GObject *chat)
 591 {
 592   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 593
 594   if (error)
 595     {
 596       DEBUG ("Error fetching room config: %s", error->message);
 597       return;
 598     }
 599
 600   update_title (self, properties);
 601 }
 602
 603 static void
 604 tp_chat_dbus_properties_changed_cb (TpProxy *proxy,
 605     const gchar *interface_name,
 606     GHashTable *changed,
 607     const gchar **invalidated,
 608     gpointer user_data,
 609     GObject *chat)
 610 {
 611   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 612
 613   if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_SUBJECT))
 614     update_subject (self, changed);
 615
 616   if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG))
 617     update_title (self, changed);
 618 }
 619
 620 void
 621 empathy_tp_chat_set_subject (EmpathyTpChat *self,
 622     const gchar *subject)
 623 {
 624   tp_cli_channel_interface_subject_call_set_subject (TP_CHANNEL (self), -1,
 625       subject, tp_chat_async_cb, "while setting subject", NULL,
 626       G_OBJECT (self));
 627 }
 628
 629 const gchar *
 630 empathy_tp_chat_get_title (EmpathyTpChat *self)
 631 {
 632   return self->priv->title;
 633 }
 634
 635 gboolean
 636 empathy_tp_chat_supports_subject (EmpathyTpChat *self)
 637 {
 638   return self->priv->supports_subject;
 639 }
 640
 641 gboolean
 642 empathy_tp_chat_can_set_subject (EmpathyTpChat *self)
 643 {
 644   return self->priv->can_set_subject;
 645 }
 646
 647 const gchar *
 648 empathy_tp_chat_get_subject (EmpathyTpChat *self)
 649 {
 650   return self->priv->subject;
 651 }
 652
 653 const gchar *
 654 empathy_tp_chat_get_subject_actor (EmpathyTpChat *self)
 655 {
 656   return self->priv->subject_actor;
 657 }
 658
 659 static void
 660 tp_chat_dispose (GObject *object)
 661 {
 662   EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
 663
 664   tp_clear_object (&self->priv->remote_contact);
 665   tp_clear_object (&self->priv->user);
 666
 667   g_queue_foreach (self->priv->pending_messages_queue,
 668     (GFunc) g_object_unref, NULL);
 669   g_queue_clear (self->priv->pending_messages_queue);
 670
 671   tp_clear_object (&self->priv->ready_result);
 672
 673   if (G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose)
 674     G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose (object);
 675 }
 676
 677 static void
 678 tp_chat_finalize (GObject *object)
 679 {
 680   EmpathyTpChat *self = (EmpathyTpChat *) object;
 681
 682   DEBUG ("Finalize: %p", object);
 683
 684   g_queue_free (self->priv->pending_messages_queue);
 685   g_hash_table_unref (self->priv->messages_being_sent);
 686
 687   g_free (self->priv->title);
 688   g_free (self->priv->subject);
 689   g_free (self->priv->subject_actor);
 690
 691   G_OBJECT_CLASS (empathy_tp_chat_parent_class)->finalize (object);
 692 }
 693
 694 static void
 695 check_almost_ready (EmpathyTpChat *self)
 696 {
 697   TpChannel *channel = (TpChannel *) self;
 698
 699   if (self->priv->ready_result == NULL)
 700     return;
 701
 702   if (self->priv->user == NULL)
 703     return;
 704
 705   if (self->priv->preparing_password)
 706     return;
 707
 708   /* We need either the members (room) or the remote contact (private chat).
 709    * If the chat is protected by a password we can't get these information so
 710    * consider the chat as ready so it can be presented to the user. */
 711   if (!tp_channel_password_needed (channel) && self->priv->members == NULL &&
 712       self->priv->remote_contact == NULL)
 713     return;
 714
 715   g_assert (tp_proxy_is_prepared (self,
 716     TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES));
 717
 718   tp_g_signal_connect_object (self, "message-received",
 719     G_CALLBACK (message_received_cb), self, 0);
 720   tp_g_signal_connect_object (self, "pending-message-removed",
 721     G_CALLBACK (pending_message_removed_cb), self, 0);
 722
 723   list_pending_messages (self);
 724
 725   tp_g_signal_connect_object (self, "message-sent",
 726     G_CALLBACK (message_sent_cb), self, 0);
 727
 728   check_ready (self);
 729 }
 730
 731 static void
 732 add_members_contact (EmpathyTpChat *self,
 733     GPtrArray *contacts)
 734 {
 735   guint i;
 736
 737   for (i = 0; i < contacts->len; i++)
 738     {
 739       EmpathyContact *contact;
 740
 741       contact = empathy_contact_dup_from_tp_contact (g_ptr_array_index (
 742             contacts, i));
 743
 744       self->priv->members = g_list_prepend (self->priv->members, contact);
 745
 746       g_signal_emit (self, signals[SIG_MEMBERS_CHANGED], 0,
 747                  contact, NULL, 0, NULL, TRUE);
 748     }
 749
 750   check_almost_ready (self);
 751 }
 752
 753 static void
 754 remove_member (EmpathyTpChat *self,
 755     EmpathyContact *contact)
 756 {
 757   GList *l;
 758
 759   for (l = self->priv->members; l; l = l->next)
 760     {
 761       EmpathyContact *c = l->data;
 762
 763       if (contact == c)
 764         {
 765           self->priv->members = g_list_delete_link (self->priv->members, l);
 766           g_object_unref (c);
 767           break;
 768         }
 769     }
 770 }
 771
 772 static void
 773 contact_renamed (EmpathyTpChat *self,
 774     TpContact *old_contact,
 775     TpContact *new_contact,
 776     TpChannelGroupChangeReason reason,
 777     const gchar *message)
 778 {
 779   EmpathyContact *old = NULL, *new = NULL;
 780
 781   old = empathy_contact_dup_from_tp_contact (old_contact);
 782   new = empathy_contact_dup_from_tp_contact (new_contact);
 783
 784   self->priv->members = g_list_prepend (self->priv->members, new);
 785
 786   if (old != NULL)
 787     {
 788       remove_member (self, old);
 789
 790       g_signal_emit (self, signals[SIG_MEMBER_RENAMED], 0, old, new,
 791           reason, message);
 792       g_object_unref (old);
 793     }
 794
 795   if (self->priv->user == old)
 796     {
 797       /* We change our nick */
 798       tp_clear_object (&self->priv->user);
 799       self->priv->user = g_object_ref (new);
 800       g_object_notify (G_OBJECT (self), "self-contact");
 801     }
 802
 803   check_almost_ready (self);
 804 }
 805
 806 static void
 807 tp_chat_group_contacts_changed_cb (TpChannel *channel,
 808     GPtrArray *added,
 809     GPtrArray *removed,
 810     GPtrArray *local_pending,
 811     GPtrArray *remote_pending,
 812     TpContact *actor,
 813     GHashTable *details,
 814     EmpathyTpChat *self)
 815 {
 816   EmpathyContact *actor_contact = NULL;
 817   guint i;
 818   TpChannelGroupChangeReason reason;
 819   const gchar *message;
 820
 821   reason = tp_asv_get_uint32 (details, "change-reason", NULL);
 822   message = tp_asv_get_string (details, "message");
 823
 824   /* Contact renamed */
 825   if (reason == TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED)
 826     {
 827       /* there can only be a single 'added' and a single 'removed' handle */
 828       if (removed->len != 1 || added->len != 1)
 829         {
 830           g_warning ("RENAMED with %u added, %u removed (expected 1, 1)",
 831             added->len, removed->len);
 832           return;
 833         }
 834
 835       contact_renamed (self, g_ptr_array_index (removed, 0),
 836           g_ptr_array_index (added, 0), reason, message);
 837       return;
 838     }
 839
 840   if (actor != NULL)
 841     {
 842       actor_contact = empathy_contact_dup_from_tp_contact (actor);
 843
 844       if (actor_contact == NULL)
 845         {
 846           /* FIXME: handle this a tad more gracefully: perhaps
 847            * the actor was a server op. We could use the
 848            * contact-ids detail of MembersChangedDetailed.
 849            */
 850           DEBUG ("actor %s not a channel member",
 851               tp_contact_get_identifier (actor));
 852         }
 853     }
 854
 855   /* Remove contacts that are not members anymore */
 856   for (i = 0; i < removed->len; i++)
 857     {
 858       TpContact *tp_contact = g_ptr_array_index (removed, i);
 859       EmpathyContact *contact;
 860
 861       contact = empathy_contact_dup_from_tp_contact (tp_contact);
 862
 863       if (contact != NULL)
 864         {
 865           remove_member (self, contact);
 866
 867           g_signal_emit (self, signals[SIG_MEMBERS_CHANGED], 0,
 868                      contact, actor_contact, reason, message, FALSE);
 869           g_object_unref (contact);
 870         }
 871     }
 872
 873   if (added->len > 0)
 874     {
 875       add_members_contact (self, added);
 876     }
 877
 878   if (actor_contact != NULL)
 879     g_object_unref (actor_contact);
 880 }
 881
 882 static void
 883 create_remote_contact (EmpathyTpChat *self,
 884     TpContact *contact)
 885 {
 886   self->priv->remote_contact = empathy_contact_dup_from_tp_contact (contact);
 887   g_object_notify (G_OBJECT (self), "remote-contact");
 888
 889   check_almost_ready (self);
 890 }
 891
 892 static void
 893 create_self_contact (EmpathyTpChat *self,
 894     TpContact *contact)
 895 {
 896   self->priv->user = empathy_contact_dup_from_tp_contact (contact);
 897   empathy_contact_set_is_user (self->priv->user, TRUE);
 898   g_object_notify (G_OBJECT (self), "self-contact");
 899   check_almost_ready (self);
 900 }
 901
 902 static void
 903 tp_chat_get_property (GObject *object,
 904     guint param_id,
 905     GValue *value,
 906     GParamSpec *pspec)
 907 {
 908   EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
 909
 910   switch (param_id)
 911     {
 912       case PROP_SELF_CONTACT:
 913         g_value_set_object (value, self->priv->user);
 914         break;
 915       case PROP_REMOTE_CONTACT:
 916         g_value_set_object (value, self->priv->remote_contact);
 917         break;
 918       case PROP_N_MESSAGES_SENDING:
 919         g_value_set_uint (value,
 920           g_hash_table_size (self->priv->messages_being_sent));
 921         break;
 922       case PROP_TITLE:
 923         g_value_set_string (value,
 924           empathy_tp_chat_get_title (self));
 925         break;
 926       case PROP_SUBJECT:
 927         g_value_set_string (value,
 928           empathy_tp_chat_get_subject (self));
 929         break;
 930       default:
 931         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 932         break;
 933     };
 934 }
 935
 936 enum {
 937   FEAT_READY,
 938   N_FEAT
 939 };
 940
 941 static const TpProxyFeature *
 942 tp_chat_list_features (TpProxyClass *cls G_GNUC_UNUSED)
 943 {
 944   static TpProxyFeature features[N_FEAT + 1] = { { 0 } };
 945   static GQuark need[2] = {0, 0};
 946
 947   if (G_LIKELY (features[0].name != 0))
 948     return features;
 949
 950   features[FEAT_READY].name = EMPATHY_TP_CHAT_FEATURE_READY;
 951   need[0] = TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES;
 952   features[FEAT_READY].depends_on = need;
 953   features[FEAT_READY].prepare_async =
 954     tp_chat_prepare_ready_async;
 955
 956   /* assert that the terminator at the end is there */
 957   g_assert (features[N_FEAT].name == 0);
 958
 959   return features;
 960 }
 961
 962 static void
 963 empathy_tp_chat_class_init (EmpathyTpChatClass *klass)
 964 {
 965   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 966   TpProxyClass *proxy_class = TP_PROXY_CLASS (klass);
 967
 968   object_class->dispose = tp_chat_dispose;
 969   object_class->finalize = tp_chat_finalize;
 970   object_class->get_property = tp_chat_get_property;
 971
 972   proxy_class->list_features = tp_chat_list_features;
 973
 974   /**
 975    * EmpathyTpChat:self-contact:
 976    *
 977    * Not to be confused with TpChannel:group-self-contact.
 978    */
 979   g_object_class_install_property (object_class, PROP_SELF_CONTACT,
 980       g_param_spec_object ("self-contact", "The local contact",
 981         "The EmpathyContact for the local user on this channel",
 982         EMPATHY_TYPE_CONTACT,
 983         G_PARAM_READABLE));
 984
 985   g_object_class_install_property (object_class, PROP_REMOTE_CONTACT,
 986       g_param_spec_object ("remote-contact", "The remote contact",
 987         "The remote contact if there is no group iface on the channel",
 988         EMPATHY_TYPE_CONTACT,
 989         G_PARAM_READABLE));
 990
 991   g_object_class_install_property (object_class, PROP_N_MESSAGES_SENDING,
 992       g_param_spec_uint ("n-messages-sending", "Num Messages Sending",
 993         "The number of messages being sent",
 994         0, G_MAXUINT, 0,
 995         G_PARAM_READABLE));
 996
 997   g_object_class_install_property (object_class, PROP_TITLE,
 998       g_param_spec_string ("title", "Title",
 999         "A human-readable name for the room, if any",
1000         NULL,
1001         G_PARAM_READABLE |
1002         G_PARAM_STATIC_STRINGS));
1003
1004   g_object_class_install_property (object_class, PROP_SUBJECT,
1005       g_param_spec_string ("subject", "Subject",
1006         "The room's current subject, if any",
1007         NULL,
1008         G_PARAM_READABLE |
1009         G_PARAM_STATIC_STRINGS));
1010
1011   /* Signals */
1012   signals[MESSAGE_RECEIVED] = g_signal_new ("message-received-empathy",
1013       G_TYPE_FROM_CLASS (klass),
1014       G_SIGNAL_RUN_LAST,
1015       0,
1016       NULL, NULL,
1017       g_cclosure_marshal_generic,
1018       G_TYPE_NONE,
1019       1, EMPATHY_TYPE_MESSAGE);
1020
1021   signals[SEND_ERROR] = g_signal_new ("send-error",
1022       G_TYPE_FROM_CLASS (klass),
1023       G_SIGNAL_RUN_LAST,
1024       0,
1025       NULL, NULL,
1026       g_cclosure_marshal_generic,
1027       G_TYPE_NONE,
1028       3, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING);
1029
1030   signals[MESSAGE_ACKNOWLEDGED] = g_signal_new ("message-acknowledged",
1031       G_TYPE_FROM_CLASS (klass),
1032       G_SIGNAL_RUN_LAST,
1033       0,
1034       NULL, NULL,
1035       g_cclosure_marshal_generic,
1036       G_TYPE_NONE,
1037       1, EMPATHY_TYPE_MESSAGE);
1038
1039   signals[SIG_MEMBER_RENAMED] = g_signal_new ("member-renamed",
1040       G_OBJECT_CLASS_TYPE (klass),
1041       G_SIGNAL_RUN_LAST,
1042       0, NULL, NULL, NULL,
1043       G_TYPE_NONE,
1044       4, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1045       G_TYPE_UINT, G_TYPE_STRING);
1046
1047   signals[SIG_MEMBERS_CHANGED] = g_signal_new ("members-changed",
1048       G_OBJECT_CLASS_TYPE (klass),
1049       G_SIGNAL_RUN_LAST,
1050       0, NULL, NULL, NULL,
1051       G_TYPE_NONE,
1052       5, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1053       G_TYPE_UINT, G_TYPE_STRING, G_TYPE_BOOLEAN);
1054
1055   g_type_class_add_private (object_class, sizeof (EmpathyTpChatPrivate));
1056 }
1057
1058 static void
1059 empathy_tp_chat_init (EmpathyTpChat *self)
1060 {
1061   self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_TP_CHAT,
1062       EmpathyTpChatPrivate);
1063
1064   self->priv->pending_messages_queue = g_queue_new ();
1065   self->priv->messages_being_sent = g_hash_table_new_full (
1066       g_str_hash, g_str_equal, g_free, NULL);
1067 }
1068
1069 EmpathyTpChat *
1070 empathy_tp_chat_new (TpSimpleClientFactory *factory,
1071     TpConnection *conn,
1072     const gchar *object_path,
1073     const GHashTable *immutable_properties)
1074 {
1075   g_return_val_if_fail (TP_IS_CONNECTION (conn), NULL);
1076   g_return_val_if_fail (immutable_properties != NULL, NULL);
1077
1078   return g_object_new (EMPATHY_TYPE_TP_CHAT,
1079       "factory", factory,
1080        "connection", conn,
1081        "dbus-daemon", tp_proxy_get_dbus_daemon (conn),
1082        "bus-name", tp_proxy_get_bus_name (conn),
1083        "object-path", object_path,
1084        "channel-properties", immutable_properties,
1085        NULL);
1086 }
1087
1088 const gchar *
1089 empathy_tp_chat_get_id (EmpathyTpChat *self)
1090 {
1091   const gchar *id;
1092
1093   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1094
1095   id = tp_channel_get_identifier ((TpChannel *) self);
1096   if (!EMP_STR_EMPTY (id))
1097     return id;
1098   else if (self->priv->remote_contact)
1099     return empathy_contact_get_id (self->priv->remote_contact);
1100   else
1101     return NULL;
1102
1103 }
1104
1105 EmpathyContact *
1106 empathy_tp_chat_get_remote_contact (EmpathyTpChat *self)
1107 {
1108   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1109
1110   return self->priv->remote_contact;
1111 }
1112
1113 TpAccount *
1114 empathy_tp_chat_get_account (EmpathyTpChat *self)
1115 {
1116   TpConnection *connection;
1117
1118   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1119
1120   connection = tp_channel_get_connection (TP_CHANNEL (self));
1121
1122   return tp_connection_get_account (connection);
1123 }
1124
1125 void
1126 empathy_tp_chat_send (EmpathyTpChat *self,
1127           TpMessage *message)
1128 {
1129   gchar *message_body;
1130
1131   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1132   g_return_if_fail (TP_IS_CLIENT_MESSAGE (message));
1133
1134   message_body = tp_message_to_text (message, NULL);
1135
1136   DEBUG ("Sending message: %s", message_body);
1137
1138   tp_text_channel_send_message_async (TP_TEXT_CHANNEL (self),
1139     message, TP_MESSAGE_SENDING_FLAG_REPORT_DELIVERY,
1140     message_send_cb, self);
1141
1142   g_free (message_body);
1143 }
1144
1145 const GList *
1146 empathy_tp_chat_get_pending_messages (EmpathyTpChat *self)
1147 {
1148   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1149
1150   return self->priv->pending_messages_queue->head;
1151 }
1152
1153 void
1154 empathy_tp_chat_acknowledge_message (EmpathyTpChat *self,
1155     EmpathyMessage *message)
1156 {
1157   TpMessage *tp_msg;
1158
1159   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1160
1161   if (!empathy_message_is_incoming (message))
1162     return;
1163
1164   tp_msg = empathy_message_get_tp_message (message);
1165   tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
1166              tp_msg, NULL, NULL);
1167 }
1168
1169 /**
1170  * empathy_tp_chat_can_add_contact:
1171  *
1172  * Returns: %TRUE if empathy_contact_list_add() will work for this channel.
1173  * That is if this chat is a 1-to-1 channel that can be upgraded to
1174  * a MUC using the Conference interface or if the channel is a MUC.
1175  */
1176 gboolean
1177 empathy_tp_chat_can_add_contact (EmpathyTpChat *self)
1178 {
1179   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), FALSE);
1180
1181   return self->priv->can_upgrade_to_muc ||
1182     tp_proxy_has_interface_by_id (self,
1183       TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);;
1184 }
1185
1186 static void
1187 tp_channel_leave_async_cb (GObject *source_object,
1188         GAsyncResult *res,
1189         gpointer user_data)
1190 {
1191   GError *error = NULL;
1192
1193   if (!tp_channel_leave_finish (TP_CHANNEL (source_object), res, &error))
1194     {
1195       DEBUG ("Could not leave channel properly: (%s); closing the channel",
1196         error->message);
1197       g_error_free (error);
1198     }
1199 }
1200
1201 void
1202 empathy_tp_chat_leave (EmpathyTpChat *self,
1203     const gchar *message)
1204 {
1205   TpChannel *channel = (TpChannel *) self;
1206
1207   DEBUG ("Leaving channel %s with message \"%s\"",
1208     tp_channel_get_identifier (channel), message);
1209
1210   tp_channel_leave_async (channel, TP_CHANNEL_GROUP_CHANGE_REASON_NONE,
1211     message, tp_channel_leave_async_cb, self);
1212 }
1213
1214 gboolean
1215 empathy_tp_chat_is_invited (EmpathyTpChat *self,
1216     TpContact **inviter)
1217 {
1218   TpContact *self_contact;
1219   TpChannel *channel = TP_CHANNEL (self);
1220
1221   if (!tp_proxy_has_interface (self, TP_IFACE_CHANNEL_INTERFACE_GROUP))
1222     return FALSE;
1223
1224   self_contact = tp_channel_group_get_self_contact (channel);
1225   if (self_contact == NULL)
1226     return FALSE;
1227
1228   return tp_channel_group_get_local_pending_contact_info (channel,
1229       self_contact, inviter, NULL, NULL);
1230 }
1231
1232 TpChannelChatState
1233 empathy_tp_chat_get_chat_state (EmpathyTpChat *self,
1234     EmpathyContact *contact)
1235 {
1236   return tp_text_channel_get_chat_state ((TpTextChannel *) self,
1237     empathy_contact_get_tp_contact (contact));
1238 }
1239
1240 EmpathyContact *
1241 empathy_tp_chat_get_self_contact (EmpathyTpChat *self)
1242 {
1243   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1244
1245   return self->priv->user;
1246 }
1247
1248 GQuark
1249 empathy_tp_chat_get_feature_ready (void)
1250 {
1251   return g_quark_from_static_string ("empathy-tp-chat-feature-ready");
1252 }
1253
1254 static void
1255 password_feature_prepare_cb (GObject *source,
1256     GAsyncResult *result,
1257     gpointer user_data)
1258 {
1259   EmpathyTpChat *self = user_data;
1260   GError *error = NULL;
1261
1262   if (!tp_proxy_prepare_finish (source, result, &error))
1263     {
1264       DEBUG ("Failed to prepare Password: %s", error->message);
1265       g_error_free (error);
1266     }
1267
1268   self->priv->preparing_password = FALSE;
1269
1270   check_almost_ready (self);
1271 }
1272
1273 static void
1274 tp_chat_prepare_ready_async (TpProxy *proxy,
1275   const TpProxyFeature *feature,
1276   GAsyncReadyCallback callback,
1277   gpointer user_data)
1278 {
1279   EmpathyTpChat *self = (EmpathyTpChat *) proxy;
1280   TpChannel *channel = (TpChannel *) proxy;
1281   TpConnection *connection;
1282   gboolean listen_for_dbus_properties_changed = FALSE;
1283
1284   g_assert (self->priv->ready_result == NULL);
1285   self->priv->ready_result = g_simple_async_result_new (G_OBJECT (self),
1286     callback, user_data, tp_chat_prepare_ready_async);
1287
1288   connection = tp_channel_get_connection (channel);
1289
1290   if (tp_proxy_has_interface_by_id (self,
1291         TP_IFACE_QUARK_CHANNEL_INTERFACE_PASSWORD))
1292     {
1293       /* The password feature can't be a hard dep on our own feature has we
1294        * depend on it only if the channel implements the
1295        * Password interface.
1296        */
1297       GQuark features[] = { TP_CHANNEL_FEATURE_PASSWORD , 0 };
1298
1299       self->priv->preparing_password = TRUE;
1300
1301       tp_proxy_prepare_async (self, features, password_feature_prepare_cb,
1302           self);
1303     }
1304
1305   if (tp_proxy_has_interface_by_id (self,
1306             TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
1307     {
1308       GPtrArray *contacts;
1309       TpContact *contact;
1310
1311       /* Get self contact from the group's self handle */
1312       contact = tp_channel_group_get_self_contact (channel);
1313       create_self_contact (self, contact);
1314
1315       /* Get initial member contacts */
1316       contacts = tp_channel_group_dup_members_contacts (channel);
1317       add_members_contact (self, contacts);
1318       g_ptr_array_unref (contacts);
1319
1320       self->priv->can_upgrade_to_muc = FALSE;
1321
1322       tp_g_signal_connect_object (self, "group-contacts-changed",
1323         G_CALLBACK (tp_chat_group_contacts_changed_cb), self, 0);
1324     }
1325   else
1326     {
1327       TpCapabilities *caps;
1328       GVariant *classes, *class;
1329       GVariantIter iter;
1330       TpContact *contact;
1331
1332       /* Get the self contact from the connection's self handle */
1333       contact = tp_connection_get_self_contact (connection);
1334       create_self_contact (self, contact);
1335
1336       /* Get the remote contact */
1337       contact = tp_channel_get_target_contact (channel);
1338       create_remote_contact (self, contact);
1339
1340       caps = tp_connection_get_capabilities (connection);
1341       g_assert (caps != NULL);
1342
1343       classes = tp_capabilities_dup_channel_classes_variant (caps);
1344
1345       g_variant_iter_init (&iter, classes);
1346       while ((class = g_variant_iter_next_value (&iter)))
1347         {
1348           GVariant *fixed, *allowed;
1349           const gchar *chan_type = NULL;
1350
1351           fixed = g_variant_get_child_value (class, 0);
1352           allowed = g_variant_get_child_value (class, 1);
1353
1354           g_variant_lookup (fixed, TP_PROP_CHANNEL_CHANNEL_TYPE, "&s",
1355               &chan_type);
1356           if (!tp_strdiff (chan_type, TP_IFACE_CHANNEL_TYPE_TEXT))
1357             {
1358               const gchar **oprops;
1359
1360               oprops = g_variant_get_strv (allowed, NULL);
1361
1362               if (tp_strv_contains (oprops,
1363                     TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS))
1364                 {
1365                   self->priv->can_upgrade_to_muc = TRUE;
1366                 }
1367
1368               g_free (oprops);
1369             }
1370
1371           g_variant_unref (class);
1372           g_variant_unref (fixed);
1373           g_variant_unref (allowed);
1374
1375           if (self->priv->can_upgrade_to_muc)
1376             break;
1377         }
1378
1379       g_variant_unref (classes);
1380     }
1381
1382   if (tp_proxy_has_interface_by_id (self,
1383             TP_IFACE_QUARK_CHANNEL_INTERFACE_SUBJECT))
1384     {
1385       tp_cli_dbus_properties_call_get_all (channel, -1,
1386                    TP_IFACE_CHANNEL_INTERFACE_SUBJECT,
1387                    tp_chat_get_all_subject_cb,
1388                    NULL, NULL,
1389                    G_OBJECT (self));
1390       listen_for_dbus_properties_changed = TRUE;
1391     }
1392
1393   if (tp_proxy_has_interface_by_id (self,
1394             TP_IFACE_QUARK_CHANNEL_INTERFACE_ROOM_CONFIG))
1395     {
1396       tp_cli_dbus_properties_call_get_all (channel, -1,
1397                    TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG,
1398                    tp_chat_get_all_room_config_cb,
1399                    NULL, NULL,
1400                    G_OBJECT (self));
1401       listen_for_dbus_properties_changed = TRUE;
1402     }
1403
1404   if (listen_for_dbus_properties_changed)
1405     {
1406       tp_cli_dbus_properties_connect_to_properties_changed (channel,
1407                         tp_chat_dbus_properties_changed_cb,
1408                         NULL, NULL,
1409                         G_OBJECT (self), NULL);
1410     }
1411 }