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 #include "empathy-tp-chat.h"
  23
  24 #include <tp-account-widgets/tpaw-utils.h>
  25
  26 #include "empathy-request-util.h"
  27 #include "empathy-utils.h"
  28
  29 #define DEBUG_FLAG EMPATHY_DEBUG_TP | EMPATHY_DEBUG_CHAT
  30 #include "empathy-debug.h"
  31
  32 struct _EmpathyTpChatPrivate
  33 {
  34   TpAccount *account;
  35   EmpathyContact *user;
  36   EmpathyContact *remote_contact;
  37   GList *members;
  38   /* Queue of messages signalled but not acked yet */
  39   GQueue *pending_messages_queue;
  40
  41   /* Subject */
  42   gboolean supports_subject;
  43   gboolean can_set_subject;
  44   gchar *subject;
  45   gchar *subject_actor;
  46
  47   /* Room config (for now, we only track the title and don't support
  48    * setting it) */
  49   gchar *title;
  50
  51   gboolean can_upgrade_to_muc;
  52
  53   GHashTable *messages_being_sent;
  54
  55   /* GSimpleAsyncResult used when preparing EMPATHY_TP_CHAT_FEATURE_CORE */
  56   GSimpleAsyncResult *ready_result;
  57   gboolean preparing_password;
  58 };
  59
  60 enum
  61 {
  62   PROP_0,
  63   PROP_ACCOUNT,
  64   PROP_SELF_CONTACT,
  65   PROP_REMOTE_CONTACT,
  66   PROP_N_MESSAGES_SENDING,
  67   PROP_TITLE,
  68   PROP_SUBJECT,
  69 };
  70
  71 enum
  72 {
  73   MESSAGE_RECEIVED,
  74   SEND_ERROR,
  75   MESSAGE_ACKNOWLEDGED,
  76   SIG_MEMBER_RENAMED,
  77   SIG_MEMBERS_CHANGED,
  78   LAST_SIGNAL
  79 };
  80
  81 static guint signals[LAST_SIGNAL];
  82
  83 G_DEFINE_TYPE (EmpathyTpChat, empathy_tp_chat, TP_TYPE_TEXT_CHANNEL)
  84
  85 static void
  86 tp_chat_set_delivery_status (EmpathyTpChat *self,
  87     const gchar *token,
  88     EmpathyDeliveryStatus delivery_status)
  89 {
  90   TpDeliveryReportingSupportFlags flags =
  91     tp_text_channel_get_delivery_reporting_support (
  92       TP_TEXT_CHANNEL (self));
  93
  94   /* channel must support receiving failures and successes */
  95   if (!tp_str_empty (token) &&
  96       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_FAILURES &&
  97       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_SUCCESSES)
  98     {
  99       DEBUG ("Delivery status (%s) = %u", token, delivery_status);
 100
 101       switch (delivery_status)
 102         {
 103           case EMPATHY_DELIVERY_STATUS_NONE:
 104             g_hash_table_remove (self->priv->messages_being_sent,
 105               token);
 106             break;
 107
 108           default:
 109             g_hash_table_insert (self->priv->messages_being_sent,
 110               g_strdup (token),
 111               GUINT_TO_POINTER (delivery_status));
 112             break;
 113         }
 114
 115     g_object_notify (G_OBJECT (self), "n-messages-sending");
 116   }
 117 }
 118
 119 static void tp_chat_prepare_ready_async (TpProxy *proxy,
 120   const TpProxyFeature *feature,
 121   GAsyncReadyCallback callback,
 122   gpointer user_data);
 123
 124 static void
 125 tp_chat_async_cb (TpChannel *proxy,
 126     const GError *error,
 127     gpointer user_data,
 128     GObject *weak_object)
 129 {
 130   if (error != NULL)
 131     DEBUG ("Error %s: %s", (gchar *) user_data, error->message);
 132 }
 133
 134 static void
 135 update_config_cb (TpChannel *proxy,
 136     const GError *error,
 137     gpointer user_data,
 138     GObject *weak_object)
 139 {
 140   if (error != NULL)
 141     DEBUG ("Failed to change config of the room: %s", error->message);
 142 }
 143
 144 static void
 145 create_conference_cb (GObject *source,
 146     GAsyncResult *result,
 147     gpointer user_data)
 148 {
 149   TpChannel *channel;
 150   GError *error = NULL;
 151   GHashTable *props;
 152
 153   channel = tp_account_channel_request_create_and_observe_channel_finish (
 154       TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error);
 155   if (channel == NULL)
 156     {
 157       DEBUG ("Failed to create conference channel: %s", error->message);
 158       g_error_free (error);
 159       return;
 160     }
 161
 162   /* Make the channel more confidential as only people invited are supposed to
 163    * join it. */
 164   props = tp_asv_new (
 165       "Private", G_TYPE_BOOLEAN, TRUE,
 166       "InviteOnly", G_TYPE_BOOLEAN, TRUE,
 167       NULL);
 168
 169   tp_cli_channel_interface_room_config_call_update_configuration (channel, -1,
 170       props, update_config_cb, NULL, NULL, NULL);
 171
 172   g_object_unref (channel);
 173   g_hash_table_unref (props);
 174 }
 175
 176 void
 177 empathy_tp_chat_add (EmpathyTpChat *self,
 178     EmpathyContact *contact,
 179     const gchar *message)
 180 {
 181   TpChannel *channel = (TpChannel *) self;
 182
 183   if (tp_proxy_has_interface_by_id (self,
 184     TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
 185     {
 186       TpHandle handle;
 187       GArray handles = {(gchar *) &handle, 1};
 188
 189       g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 190
 191       handle = empathy_contact_get_handle (contact);
 192       tp_cli_channel_interface_group_call_add_members (channel,
 193         -1, &handles, NULL, NULL, NULL, NULL, NULL);
 194     }
 195   else if (self->priv->can_upgrade_to_muc)
 196     {
 197       TpAccountChannelRequest *req;
 198       GHashTable *props;
 199       const char *object_path;
 200       GPtrArray channels = { (gpointer *) &object_path, 1 };
 201       const char *invitees[2] = { NULL, };
 202       TpAccount *account;
 203
 204       invitees[0] = empathy_contact_get_id (contact);
 205       object_path = tp_proxy_get_object_path (self);
 206
 207       props = tp_asv_new (
 208           TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 209               TP_IFACE_CHANNEL_TYPE_TEXT,
 210           TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT,
 211               TP_HANDLE_TYPE_NONE,
 212           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS,
 213               TP_ARRAY_TYPE_OBJECT_PATH_LIST, &channels,
 214           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_INVITEE_IDS,
 215               G_TYPE_STRV, invitees,
 216           /* FIXME: InvitationMessage ? */
 217           NULL);
 218
 219       account = empathy_tp_chat_get_account (self);
 220
 221       req = tp_account_channel_request_new (account, props,
 222         TP_USER_ACTION_TIME_NOT_USER_ACTION);
 223
 224       /* Although this is a MUC, it's anonymous, so CreateChannel is
 225        * valid. */
 226       tp_account_channel_request_create_and_observe_channel_async (req,
 227           EMPATHY_CHAT_BUS_NAME, NULL, create_conference_cb, NULL);
 228
 229       g_object_unref (req);
 230       g_hash_table_unref (props);
 231     }
 232   else
 233     {
 234       g_warning ("Cannot add to this channel");
 235     }
 236 }
 237
 238 GList *
 239 empathy_tp_chat_get_members (EmpathyTpChat *self)
 240 {
 241   GList *members = NULL;
 242
 243   if (self->priv->members)
 244     {
 245       members = g_list_copy (self->priv->members);
 246       g_list_foreach (members, (GFunc) g_object_ref, NULL);
 247     }
 248   else
 249     {
 250       members = g_list_prepend (members, g_object_ref (self->priv->user));
 251
 252       if (self->priv->remote_contact != NULL)
 253         members = g_list_prepend (members,
 254             g_object_ref (self->priv->remote_contact));
 255     }
 256
 257   return members;
 258 }
 259
 260 static void
 261 check_ready (EmpathyTpChat *self)
 262 {
 263   if (self->priv->ready_result == NULL)
 264     return;
 265
 266   DEBUG ("Ready");
 267
 268   g_simple_async_result_complete_in_idle (self->priv->ready_result);
 269   tp_clear_object (&self->priv->ready_result);
 270 }
 271
 272 static void
 273 tp_chat_build_message (EmpathyTpChat *self,
 274     TpMessage *msg,
 275     gboolean incoming)
 276 {
 277   EmpathyMessage *message;
 278   TpContact *sender;
 279
 280   message = empathy_message_new_from_tp_message (msg, incoming);
 281   /* FIXME: this is actually a lie for incoming messages. */
 282   empathy_message_set_receiver (message, self->priv->user);
 283
 284   sender = tp_signalled_message_get_sender (msg);
 285   g_assert (sender != NULL);
 286
 287   if (tp_contact_get_handle (sender) == 0)
 288     {
 289       empathy_message_set_sender (message, self->priv->user);
 290     }
 291   else
 292     {
 293       EmpathyContact *contact;
 294
 295       contact = empathy_contact_dup_from_tp_contact (sender);
 296
 297       empathy_message_set_sender (message, contact);
 298
 299       g_object_unref (contact);
 300     }
 301
 302   g_queue_push_tail (self->priv->pending_messages_queue, message);
 303   g_signal_emit (self, signals[MESSAGE_RECEIVED], 0, message);
 304 }
 305
 306 static void
 307 handle_delivery_report (EmpathyTpChat *self,
 308     TpMessage *message)
 309 {
 310   TpDeliveryStatus delivery_status;
 311   const GHashTable *header;
 312   TpChannelTextSendError delivery_error;
 313   gboolean valid;
 314   GPtrArray *echo;
 315   const gchar *message_body = NULL;
 316   const gchar *delivery_dbus_error;
 317   const gchar *delivery_token = NULL;
 318
 319   header = tp_message_peek (message, 0);
 320   if (header == NULL)
 321     goto out;
 322
 323   delivery_token = tp_asv_get_string (header, "delivery-token");
 324   delivery_status = tp_asv_get_uint32 (header, "delivery-status", &valid);
 325
 326   if (!valid)
 327     {
 328       goto out;
 329     }
 330   else if (delivery_status == TP_DELIVERY_STATUS_ACCEPTED)
 331     {
 332       DEBUG ("Accepted %s", delivery_token);
 333       tp_chat_set_delivery_status (self, delivery_token,
 334         EMPATHY_DELIVERY_STATUS_ACCEPTED);
 335       goto out;
 336     }
 337   else if (delivery_status == TP_DELIVERY_STATUS_DELIVERED)
 338     {
 339       DEBUG ("Delivered %s", delivery_token);
 340       tp_chat_set_delivery_status (self, delivery_token,
 341         EMPATHY_DELIVERY_STATUS_NONE);
 342       goto out;
 343     }
 344   else if (delivery_status != TP_DELIVERY_STATUS_PERMANENTLY_FAILED &&
 345        delivery_status != TP_DELIVERY_STATUS_TEMPORARILY_FAILED)
 346     {
 347       goto out;
 348     }
 349
 350   delivery_error = tp_asv_get_uint32 (header, "delivery-error", &valid);
 351   if (!valid)
 352     delivery_error = TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 353
 354   delivery_dbus_error = tp_asv_get_string (header, "delivery-dbus-error");
 355
 356   /* TODO: ideally we should use tp-glib API giving us the echoed message as a
 357    * TpMessage. (fdo #35884) */
 358   echo = tp_asv_get_boxed (header, "delivery-echo",
 359     TP_ARRAY_TYPE_MESSAGE_PART_LIST);
 360   if (echo != NULL && echo->len >= 2)
 361     {
 362       const GHashTable *echo_body;
 363
 364       echo_body = g_ptr_array_index (echo, 1);
 365       if (echo_body != NULL)
 366         message_body = tp_asv_get_string (echo_body, "content");
 367     }
 368
 369   tp_chat_set_delivery_status (self, delivery_token,
 370       EMPATHY_DELIVERY_STATUS_NONE);
 371   g_signal_emit (self, signals[SEND_ERROR], 0, message_body,
 372       delivery_error, delivery_dbus_error);
 373
 374 out:
 375   tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 376     message, NULL, NULL);
 377 }
 378
 379 static void
 380 handle_incoming_message (EmpathyTpChat *self,
 381     TpMessage *message,
 382     gboolean pending)
 383 {
 384   gchar *message_body;
 385
 386   if (tp_message_is_delivery_report (message))
 387     {
 388       handle_delivery_report (self, message);
 389       return;
 390     }
 391
 392   message_body = tp_message_to_text (message, NULL);
 393
 394   DEBUG ("Message %s (channel %s): %s",
 395     pending ? "pending" : "received",
 396     tp_proxy_get_object_path (self), message_body);
 397
 398   if (message_body == NULL)
 399     {
 400       DEBUG ("Empty message with NonTextContent, ignoring and acking.");
 401
 402       tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 403         message, NULL, NULL);
 404       return;
 405     }
 406
 407   tp_chat_build_message (self, message, TRUE);
 408
 409   g_free (message_body);
 410 }
 411
 412 static void
 413 message_received_cb (TpTextChannel *channel,
 414     TpMessage *message,
 415     EmpathyTpChat *self)
 416 {
 417   handle_incoming_message (self, message, FALSE);
 418 }
 419
 420 static gboolean
 421 find_pending_message_func (gconstpointer a,
 422     gconstpointer b)
 423 {
 424   EmpathyMessage *msg = (EmpathyMessage *) a;
 425   TpMessage *message = (TpMessage *) b;
 426
 427   if (empathy_message_get_tp_message (msg) == message)
 428     return 0;
 429
 430   return -1;
 431 }
 432
 433 static void
 434 pending_message_removed_cb (TpTextChannel   *channel,
 435     TpMessage *message,
 436     EmpathyTpChat *self)
 437 {
 438   GList *m;
 439
 440   m = g_queue_find_custom (self->priv->pending_messages_queue, message,
 441       find_pending_message_func);
 442
 443   if (m == NULL)
 444     return;
 445
 446   g_signal_emit (self, signals[MESSAGE_ACKNOWLEDGED], 0, m->data);
 447
 448   g_object_unref (m->data);
 449   g_queue_delete_link (self->priv->pending_messages_queue, m);
 450 }
 451
 452 static void
 453 message_sent_cb (TpTextChannel *channel,
 454     TpMessage *message,
 455     TpMessageSendingFlags flags,
 456     gchar *token,
 457     EmpathyTpChat *self)
 458 {
 459   gchar *message_body;
 460
 461   message_body = tp_message_to_text (message, NULL);
 462
 463   DEBUG ("Message sent: %s", message_body);
 464
 465   tp_chat_build_message (self, message, FALSE);
 466
 467   g_free (message_body);
 468 }
 469
 470 static TpChannelTextSendError
 471 error_to_text_send_error (GError *error)
 472 {
 473   if (error->domain != TP_ERROR)
 474     return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 475
 476   switch (error->code)
 477     {
 478       case TP_ERROR_OFFLINE:
 479         return TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE;
 480       case TP_ERROR_INVALID_HANDLE:
 481         return TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT;
 482       case TP_ERROR_PERMISSION_DENIED:
 483         return TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED;
 484       case TP_ERROR_NOT_IMPLEMENTED:
 485         return TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED;
 486     }
 487
 488   return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 489 }
 490
 491 static void
 492 message_send_cb (GObject *source,
 493      GAsyncResult *result,
 494      gpointer user_data)
 495 {
 496   EmpathyTpChat *self = user_data;
 497   TpTextChannel *channel = (TpTextChannel *) source;
 498   gchar *token = NULL;
 499   GError *error = NULL;
 500
 501   if (!tp_text_channel_send_message_finish (channel, result, &token, &error))
 502     {
 503       DEBUG ("Error: %s", error->message);
 504
 505       /* FIXME: we should use the body of the message as first argument of the
 506        * signal but can't easily get it as we just get a user_data pointer. Once
 507        * we'll have rebased EmpathyTpChat on top of TpTextChannel we'll be able
 508        * to use the user_data pointer to pass the message and fix this. */
 509       g_signal_emit (self, signals[SEND_ERROR], 0,
 510                NULL, error_to_text_send_error (error), NULL);
 511
 512       g_error_free (error);
 513     }
 514
 515   tp_chat_set_delivery_status (self, token,
 516     EMPATHY_DELIVERY_STATUS_SENDING);
 517   g_free (token);
 518 }
 519
 520 static void
 521 list_pending_messages (EmpathyTpChat *self)
 522 {
 523   GList *messages, *l;
 524
 525   messages = tp_text_channel_dup_pending_messages (TP_TEXT_CHANNEL (self));
 526
 527   for (l = messages; l != NULL; l = g_list_next (l))
 528     {
 529       TpMessage *message = l->data;
 530
 531       handle_incoming_message (self, message, FALSE);
 532     }
 533
 534   g_list_free_full (messages, g_object_unref);
 535 }
 536
 537 static void
 538 update_subject (EmpathyTpChat *self,
 539     GHashTable *properties)
 540 {
 541   gboolean can_set, valid;
 542   const gchar *subject;
 543
 544   can_set = tp_asv_get_boolean (properties, "CanSet", &valid);
 545   if (valid)
 546     self->priv->can_set_subject = can_set;
 547
 548   subject = tp_asv_get_string (properties, "Subject");
 549   if (subject != NULL)
 550     {
 551       const gchar *actor;
 552
 553       g_free (self->priv->subject);
 554       self->priv->subject = g_strdup (subject);
 555
 556       /* If the actor is included with this update, use it;
 557        * otherwise, clear it to avoid showing stale information.
 558        * Why might it not be included? When you join an IRC channel,
 559        * you get a pair of messages: first, the current topic; next,
 560        * who set it, and when. Idle reports these in two separate
 561        * signals.
 562        */
 563       actor = tp_asv_get_string (properties, "Actor");
 564       g_free (self->priv->subject_actor);
 565       self->priv->subject_actor = g_strdup (actor);
 566
 567       g_object_notify (G_OBJECT (self), "subject");
 568     }
 569
 570   /* TODO: track Timestamp. */
 571 }
 572
 573 static void
 574 tp_chat_get_all_subject_cb (TpProxy *proxy,
 575     GHashTable *properties,
 576     const GError *error,
 577     gpointer user_data G_GNUC_UNUSED,
 578     GObject *chat)
 579 {
 580   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 581
 582   if (error != NULL)
 583     {
 584       DEBUG ("Error fetching subject: %s", error->message);
 585       return;
 586     }
 587
 588   self->priv->supports_subject = TRUE;
 589   update_subject (self, properties);
 590 }
 591
 592 static void
 593 update_title (EmpathyTpChat *self,
 594     GHashTable *properties)
 595 {
 596   const gchar *title = tp_asv_get_string (properties, "Title");
 597
 598   if (title != NULL)
 599     {
 600       if (tp_str_empty (title))
 601         title = NULL;
 602
 603       g_free (self->priv->title);
 604       self->priv->title = g_strdup (title);
 605       g_object_notify (G_OBJECT (self), "title");
 606     }
 607 }
 608
 609 static void
 610 tp_chat_get_all_room_config_cb (TpProxy *proxy,
 611     GHashTable *properties,
 612     const GError *error,
 613     gpointer user_data G_GNUC_UNUSED,
 614     GObject *chat)
 615 {
 616   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 617
 618   if (error)
 619     {
 620       DEBUG ("Error fetching room config: %s", error->message);
 621       return;
 622     }
 623
 624   update_title (self, properties);
 625 }
 626
 627 static void
 628 tp_chat_dbus_properties_changed_cb (TpProxy *proxy,
 629     const gchar *interface_name,
 630     GHashTable *changed,
 631     const gchar **invalidated,
 632     gpointer user_data,
 633     GObject *chat)
 634 {
 635   EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 636
 637   if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_SUBJECT))
 638     update_subject (self, changed);
 639
 640   if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG))
 641     update_title (self, changed);
 642 }
 643
 644 void
 645 empathy_tp_chat_set_subject (EmpathyTpChat *self,
 646     const gchar *subject)
 647 {
 648   tp_cli_channel_interface_subject_call_set_subject (TP_CHANNEL (self), -1,
 649       subject, tp_chat_async_cb, "while setting subject", NULL,
 650       G_OBJECT (self));
 651 }
 652
 653 const gchar *
 654 empathy_tp_chat_get_title (EmpathyTpChat *self)
 655 {
 656   return self->priv->title;
 657 }
 658
 659 gboolean
 660 empathy_tp_chat_supports_subject (EmpathyTpChat *self)
 661 {
 662   return self->priv->supports_subject;
 663 }
 664
 665 gboolean
 666 empathy_tp_chat_can_set_subject (EmpathyTpChat *self)
 667 {
 668   return self->priv->can_set_subject;
 669 }
 670
 671 const gchar *
 672 empathy_tp_chat_get_subject (EmpathyTpChat *self)
 673 {
 674   return self->priv->subject;
 675 }
 676
 677 const gchar *
 678 empathy_tp_chat_get_subject_actor (EmpathyTpChat *self)
 679 {
 680   return self->priv->subject_actor;
 681 }
 682
 683 static void
 684 tp_chat_dispose (GObject *object)
 685 {
 686   EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
 687
 688   tp_clear_object (&self->priv->remote_contact);
 689   tp_clear_object (&self->priv->user);
 690
 691   g_queue_foreach (self->priv->pending_messages_queue,
 692     (GFunc) g_object_unref, NULL);
 693   g_queue_clear (self->priv->pending_messages_queue);
 694
 695   tp_clear_object (&self->priv->ready_result);
 696
 697   if (G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose)
 698     G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose (object);
 699 }
 700
 701 static void
 702 tp_chat_finalize (GObject *object)
 703 {
 704   EmpathyTpChat *self = (EmpathyTpChat *) object;
 705
 706   DEBUG ("Finalize: %p", object);
 707
 708   g_queue_free (self->priv->pending_messages_queue);
 709   g_hash_table_unref (self->priv->messages_being_sent);
 710
 711   g_free (self->priv->title);
 712   g_free (self->priv->subject);
 713   g_free (self->priv->subject_actor);
 714
 715   G_OBJECT_CLASS (empathy_tp_chat_parent_class)->finalize (object);
 716 }
 717
 718 static void
 719 check_almost_ready (EmpathyTpChat *self)
 720 {
 721   TpChannel *channel = (TpChannel *) self;
 722
 723   if (self->priv->ready_result == NULL)
 724     return;
 725
 726   if (self->priv->user == NULL)
 727     return;
 728
 729   if (self->priv->preparing_password)
 730     return;
 731
 732   /* We need either the members (room) or the remote contact (private chat).
 733    * If the chat is protected by a password we can't get these information so
 734    * consider the chat as ready so it can be presented to the user. */
 735   if (!tp_channel_password_needed (channel) && self->priv->members == NULL &&
 736       self->priv->remote_contact == NULL)
 737     return;
 738
 739   g_assert (tp_proxy_is_prepared (self,
 740     TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES));
 741
 742   tp_g_signal_connect_object (self, "message-received",
 743     G_CALLBACK (message_received_cb), self, 0);
 744   tp_g_signal_connect_object (self, "pending-message-removed",
 745     G_CALLBACK (pending_message_removed_cb), self, 0);
 746
 747   list_pending_messages (self);
 748
 749   tp_g_signal_connect_object (self, "message-sent",
 750     G_CALLBACK (message_sent_cb), self, 0);
 751
 752   check_ready (self);
 753 }
 754
 755 static void
 756 add_members_contact (EmpathyTpChat *self,
 757     GPtrArray *contacts)
 758 {
 759   guint i;
 760
 761   for (i = 0; i < contacts->len; i++)
 762     {
 763       EmpathyContact *contact;
 764
 765       contact = empathy_contact_dup_from_tp_contact (g_ptr_array_index (
 766             contacts, i));
 767
 768       self->priv->members = g_list_prepend (self->priv->members, contact);
 769
 770       g_signal_emit (self, signals[SIG_MEMBERS_CHANGED], 0,
 771                  contact, NULL, 0, NULL, TRUE);
 772     }
 773
 774   check_almost_ready (self);
 775 }
 776
 777 static void
 778 remove_member (EmpathyTpChat *self,
 779     EmpathyContact *contact)
 780 {
 781   GList *l;
 782
 783   for (l = self->priv->members; l; l = l->next)
 784     {
 785       EmpathyContact *c = l->data;
 786
 787       if (contact == c)
 788         {
 789           self->priv->members = g_list_delete_link (self->priv->members, l);
 790           g_object_unref (c);
 791           break;
 792         }
 793     }
 794 }
 795
 796 static void
 797 contact_renamed (EmpathyTpChat *self,
 798     TpContact *old_contact,
 799     TpContact *new_contact,
 800     TpChannelGroupChangeReason reason,
 801     const gchar *message)
 802 {
 803   EmpathyContact *old = NULL, *new = NULL;
 804
 805   old = empathy_contact_dup_from_tp_contact (old_contact);
 806   new = empathy_contact_dup_from_tp_contact (new_contact);
 807
 808   self->priv->members = g_list_prepend (self->priv->members, new);
 809
 810   if (old != NULL)
 811     {
 812       remove_member (self, old);
 813
 814       g_signal_emit (self, signals[SIG_MEMBER_RENAMED], 0, old, new,
 815           reason, message);
 816       g_object_unref (old);
 817     }
 818
 819   if (self->priv->user == old)
 820     {
 821       /* We change our nick */
 822       tp_clear_object (&self->priv->user);
 823       self->priv->user = g_object_ref (new);
 824       g_object_notify (G_OBJECT (self), "self-contact");
 825     }
 826
 827   check_almost_ready (self);
 828 }
 829
 830 static void
 831 tp_chat_group_contacts_changed_cb (TpChannel *channel,
 832     GPtrArray *added,
 833     GPtrArray *removed,
 834     GPtrArray *local_pending,
 835     GPtrArray *remote_pending,
 836     TpContact *actor,
 837     GHashTable *details,
 838     EmpathyTpChat *self)
 839 {
 840   EmpathyContact *actor_contact = NULL;
 841   guint i;
 842   TpChannelGroupChangeReason reason;
 843   const gchar *message;
 844
 845   reason = tp_asv_get_uint32 (details, "change-reason", NULL);
 846   message = tp_asv_get_string (details, "message");
 847
 848   /* Contact renamed */
 849   if (reason == TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED)
 850     {
 851       /* there can only be a single 'added' and a single 'removed' handle */
 852       if (removed->len != 1 || added->len != 1)
 853         {
 854           g_warning ("RENAMED with %u added, %u removed (expected 1, 1)",
 855             added->len, removed->len);
 856           return;
 857         }
 858
 859       contact_renamed (self, g_ptr_array_index (removed, 0),
 860           g_ptr_array_index (added, 0), reason, message);
 861       return;
 862     }
 863
 864   if (actor != NULL)
 865     {
 866       actor_contact = empathy_contact_dup_from_tp_contact (actor);
 867
 868       if (actor_contact == NULL)
 869         {
 870           /* FIXME: handle this a tad more gracefully: perhaps
 871            * the actor was a server op. We could use the
 872            * contact-ids detail of MembersChangedDetailed.
 873            */
 874           DEBUG ("actor %s not a channel member",
 875               tp_contact_get_identifier (actor));
 876         }
 877     }
 878
 879   /* Remove contacts that are not members anymore */
 880   for (i = 0; i < removed->len; i++)
 881     {
 882       TpContact *tp_contact = g_ptr_array_index (removed, i);
 883       EmpathyContact *contact;
 884
 885       contact = empathy_contact_dup_from_tp_contact (tp_contact);
 886
 887       if (contact != NULL)
 888         {
 889           remove_member (self, contact);
 890
 891           g_signal_emit (self, signals[SIG_MEMBERS_CHANGED], 0,
 892                      contact, actor_contact, reason, message, FALSE);
 893           g_object_unref (contact);
 894         }
 895     }
 896
 897   if (added->len > 0)
 898     {
 899       add_members_contact (self, added);
 900     }
 901
 902   if (actor_contact != NULL)
 903     g_object_unref (actor_contact);
 904 }
 905
 906 static void
 907 create_remote_contact (EmpathyTpChat *self,
 908     TpContact *contact)
 909 {
 910   self->priv->remote_contact = empathy_contact_dup_from_tp_contact (contact);
 911   g_object_notify (G_OBJECT (self), "remote-contact");
 912
 913   check_almost_ready (self);
 914 }
 915
 916 static void
 917 create_self_contact (EmpathyTpChat *self,
 918     TpContact *contact)
 919 {
 920   self->priv->user = empathy_contact_dup_from_tp_contact (contact);
 921   empathy_contact_set_is_user (self->priv->user, TRUE);
 922   g_object_notify (G_OBJECT (self), "self-contact");
 923   check_almost_ready (self);
 924 }
 925
 926 static void
 927 tp_chat_get_property (GObject *object,
 928     guint param_id,
 929     GValue *value,
 930     GParamSpec *pspec)
 931 {
 932   EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
 933
 934   switch (param_id)
 935     {
 936       case PROP_SELF_CONTACT:
 937         g_value_set_object (value, self->priv->user);
 938         break;
 939       case PROP_REMOTE_CONTACT:
 940         g_value_set_object (value, self->priv->remote_contact);
 941         break;
 942       case PROP_N_MESSAGES_SENDING:
 943         g_value_set_uint (value,
 944           g_hash_table_size (self->priv->messages_being_sent));
 945         break;
 946       case PROP_TITLE:
 947         g_value_set_string (value,
 948           empathy_tp_chat_get_title (self));
 949         break;
 950       case PROP_SUBJECT:
 951         g_value_set_string (value,
 952           empathy_tp_chat_get_subject (self));
 953         break;
 954       default:
 955         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 956         break;
 957     };
 958 }
 959
 960 enum {
 961   FEAT_READY,
 962   N_FEAT
 963 };
 964
 965 static const TpProxyFeature *
 966 tp_chat_list_features (TpProxyClass *cls G_GNUC_UNUSED)
 967 {
 968   static TpProxyFeature features[N_FEAT + 1] = { { 0 } };
 969   static GQuark need[2] = {0, 0};
 970
 971   if (G_LIKELY (features[0].name != 0))
 972     return features;
 973
 974   features[FEAT_READY].name = EMPATHY_TP_CHAT_FEATURE_READY;
 975   need[0] = TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES;
 976   features[FEAT_READY].depends_on = need;
 977   features[FEAT_READY].prepare_async =
 978     tp_chat_prepare_ready_async;
 979
 980   /* assert that the terminator at the end is there */
 981   g_assert (features[N_FEAT].name == 0);
 982
 983   return features;
 984 }
 985
 986 static void
 987 empathy_tp_chat_class_init (EmpathyTpChatClass *klass)
 988 {
 989   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 990   TpProxyClass *proxy_class = TP_PROXY_CLASS (klass);
 991
 992   object_class->dispose = tp_chat_dispose;
 993   object_class->finalize = tp_chat_finalize;
 994   object_class->get_property = tp_chat_get_property;
 995
 996   proxy_class->list_features = tp_chat_list_features;
 997
 998   /**
 999    * EmpathyTpChat:self-contact:
1000    *
1001    * Not to be confused with TpChannel:group-self-contact.
1002    */
1003   g_object_class_install_property (object_class, PROP_SELF_CONTACT,
1004       g_param_spec_object ("self-contact", "The local contact",
1005         "The EmpathyContact for the local user on this channel",
1006         EMPATHY_TYPE_CONTACT,
1007         G_PARAM_READABLE));
1008
1009   g_object_class_install_property (object_class, PROP_REMOTE_CONTACT,
1010       g_param_spec_object ("remote-contact", "The remote contact",
1011         "The remote contact if there is no group iface on the channel",
1012         EMPATHY_TYPE_CONTACT,
1013         G_PARAM_READABLE));
1014
1015   g_object_class_install_property (object_class, PROP_N_MESSAGES_SENDING,
1016       g_param_spec_uint ("n-messages-sending", "Num Messages Sending",
1017         "The number of messages being sent",
1018         0, G_MAXUINT, 0,
1019         G_PARAM_READABLE));
1020
1021   g_object_class_install_property (object_class, PROP_TITLE,
1022       g_param_spec_string ("title", "Title",
1023         "A human-readable name for the room, if any",
1024         NULL,
1025         G_PARAM_READABLE |
1026         G_PARAM_STATIC_STRINGS));
1027
1028   g_object_class_install_property (object_class, PROP_SUBJECT,
1029       g_param_spec_string ("subject", "Subject",
1030         "The room's current subject, if any",
1031         NULL,
1032         G_PARAM_READABLE |
1033         G_PARAM_STATIC_STRINGS));
1034
1035   /* Signals */
1036   signals[MESSAGE_RECEIVED] = g_signal_new ("message-received-empathy",
1037       G_TYPE_FROM_CLASS (klass),
1038       G_SIGNAL_RUN_LAST,
1039       0,
1040       NULL, NULL,
1041       g_cclosure_marshal_generic,
1042       G_TYPE_NONE,
1043       1, EMPATHY_TYPE_MESSAGE);
1044
1045   signals[SEND_ERROR] = g_signal_new ("send-error",
1046       G_TYPE_FROM_CLASS (klass),
1047       G_SIGNAL_RUN_LAST,
1048       0,
1049       NULL, NULL,
1050       g_cclosure_marshal_generic,
1051       G_TYPE_NONE,
1052       3, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING);
1053
1054   signals[MESSAGE_ACKNOWLEDGED] = g_signal_new ("message-acknowledged",
1055       G_TYPE_FROM_CLASS (klass),
1056       G_SIGNAL_RUN_LAST,
1057       0,
1058       NULL, NULL,
1059       g_cclosure_marshal_generic,
1060       G_TYPE_NONE,
1061       1, EMPATHY_TYPE_MESSAGE);
1062
1063   signals[SIG_MEMBER_RENAMED] = g_signal_new ("member-renamed",
1064       G_OBJECT_CLASS_TYPE (klass),
1065       G_SIGNAL_RUN_LAST,
1066       0, NULL, NULL, NULL,
1067       G_TYPE_NONE,
1068       4, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1069       G_TYPE_UINT, G_TYPE_STRING);
1070
1071   signals[SIG_MEMBERS_CHANGED] = g_signal_new ("members-changed",
1072       G_OBJECT_CLASS_TYPE (klass),
1073       G_SIGNAL_RUN_LAST,
1074       0, NULL, NULL, NULL,
1075       G_TYPE_NONE,
1076       5, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1077       G_TYPE_UINT, G_TYPE_STRING, G_TYPE_BOOLEAN);
1078
1079   g_type_class_add_private (object_class, sizeof (EmpathyTpChatPrivate));
1080 }
1081
1082 static void
1083 empathy_tp_chat_init (EmpathyTpChat *self)
1084 {
1085   self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_TP_CHAT,
1086       EmpathyTpChatPrivate);
1087
1088   self->priv->pending_messages_queue = g_queue_new ();
1089   self->priv->messages_being_sent = g_hash_table_new_full (
1090       g_str_hash, g_str_equal, g_free, NULL);
1091 }
1092
1093 EmpathyTpChat *
1094 empathy_tp_chat_new (TpSimpleClientFactory *factory,
1095     TpConnection *conn,
1096     const gchar *object_path,
1097     const GHashTable *immutable_properties)
1098 {
1099   g_return_val_if_fail (TP_IS_CONNECTION (conn), NULL);
1100   g_return_val_if_fail (immutable_properties != NULL, NULL);
1101
1102   return g_object_new (EMPATHY_TYPE_TP_CHAT,
1103       "factory", factory,
1104        "connection", conn,
1105        "dbus-daemon", tp_proxy_get_dbus_daemon (conn),
1106        "bus-name", tp_proxy_get_bus_name (conn),
1107        "object-path", object_path,
1108        "channel-properties", immutable_properties,
1109        NULL);
1110 }
1111
1112 const gchar *
1113 empathy_tp_chat_get_id (EmpathyTpChat *self)
1114 {
1115   const gchar *id;
1116
1117   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1118
1119   id = tp_channel_get_identifier ((TpChannel *) self);
1120   if (!TPAW_STR_EMPTY (id))
1121     return id;
1122   else if (self->priv->remote_contact)
1123     return empathy_contact_get_id (self->priv->remote_contact);
1124   else
1125     return NULL;
1126
1127 }
1128
1129 EmpathyContact *
1130 empathy_tp_chat_get_remote_contact (EmpathyTpChat *self)
1131 {
1132   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1133
1134   return self->priv->remote_contact;
1135 }
1136
1137 TpAccount *
1138 empathy_tp_chat_get_account (EmpathyTpChat *self)
1139 {
1140   TpConnection *connection;
1141
1142   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1143
1144   connection = tp_channel_get_connection (TP_CHANNEL (self));
1145
1146   return tp_connection_get_account (connection);
1147 }
1148
1149 void
1150 empathy_tp_chat_send (EmpathyTpChat *self,
1151           TpMessage *message)
1152 {
1153   gchar *message_body;
1154
1155   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1156   g_return_if_fail (TP_IS_CLIENT_MESSAGE (message));
1157
1158   message_body = tp_message_to_text (message, NULL);
1159
1160   DEBUG ("Sending message: %s", message_body);
1161
1162   tp_text_channel_send_message_async (TP_TEXT_CHANNEL (self),
1163     message, TP_MESSAGE_SENDING_FLAG_REPORT_DELIVERY,
1164     message_send_cb, self);
1165
1166   g_free (message_body);
1167 }
1168
1169 const GList *
1170 empathy_tp_chat_get_pending_messages (EmpathyTpChat *self)
1171 {
1172   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1173
1174   return self->priv->pending_messages_queue->head;
1175 }
1176
1177 void
1178 empathy_tp_chat_acknowledge_message (EmpathyTpChat *self,
1179     EmpathyMessage *message)
1180 {
1181   TpMessage *tp_msg;
1182
1183   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1184
1185   if (!empathy_message_is_incoming (message))
1186     return;
1187
1188   tp_msg = empathy_message_get_tp_message (message);
1189   tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
1190              tp_msg, NULL, NULL);
1191 }
1192
1193 /**
1194  * empathy_tp_chat_can_add_contact:
1195  *
1196  * Returns: %TRUE if empathy_contact_list_add() will work for this channel.
1197  * That is if this chat is a 1-to-1 channel that can be upgraded to
1198  * a MUC using the Conference interface or if the channel is a MUC.
1199  */
1200 gboolean
1201 empathy_tp_chat_can_add_contact (EmpathyTpChat *self)
1202 {
1203   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), FALSE);
1204
1205   return self->priv->can_upgrade_to_muc ||
1206     tp_proxy_has_interface_by_id (self,
1207       TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);;
1208 }
1209
1210 static void
1211 tp_channel_leave_async_cb (GObject *source_object,
1212         GAsyncResult *res,
1213         gpointer user_data)
1214 {
1215   GError *error = NULL;
1216
1217   if (!tp_channel_leave_finish (TP_CHANNEL (source_object), res, &error))
1218     {
1219       DEBUG ("Could not leave channel properly: (%s); closing the channel",
1220         error->message);
1221       g_error_free (error);
1222     }
1223 }
1224
1225 void
1226 empathy_tp_chat_leave (EmpathyTpChat *self,
1227     const gchar *message)
1228 {
1229   TpChannel *channel = (TpChannel *) self;
1230
1231   DEBUG ("Leaving channel %s with message \"%s\"",
1232     tp_channel_get_identifier (channel), message);
1233
1234   tp_channel_leave_async (channel, TP_CHANNEL_GROUP_CHANGE_REASON_NONE,
1235     message, tp_channel_leave_async_cb, self);
1236 }
1237
1238 gboolean
1239 empathy_tp_chat_is_invited (EmpathyTpChat *self,
1240     TpContact **inviter)
1241 {
1242   TpContact *self_contact;
1243   TpChannel *channel = TP_CHANNEL (self);
1244
1245   if (!tp_proxy_has_interface (self, TP_IFACE_CHANNEL_INTERFACE_GROUP))
1246     return FALSE;
1247
1248   self_contact = tp_channel_group_get_self_contact (channel);
1249   if (self_contact == NULL)
1250     return FALSE;
1251
1252   return tp_channel_group_get_local_pending_contact_info (channel,
1253       self_contact, inviter, NULL, NULL);
1254 }
1255
1256 TpChannelChatState
1257 empathy_tp_chat_get_chat_state (EmpathyTpChat *self,
1258     EmpathyContact *contact)
1259 {
1260   return tp_text_channel_get_chat_state ((TpTextChannel *) self,
1261     empathy_contact_get_tp_contact (contact));
1262 }
1263
1264 EmpathyContact *
1265 empathy_tp_chat_get_self_contact (EmpathyTpChat *self)
1266 {
1267   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1268
1269   return self->priv->user;
1270 }
1271
1272 GQuark
1273 empathy_tp_chat_get_feature_ready (void)
1274 {
1275   return g_quark_from_static_string ("empathy-tp-chat-feature-ready");
1276 }
1277
1278 static void
1279 password_feature_prepare_cb (GObject *source,
1280     GAsyncResult *result,
1281     gpointer user_data)
1282 {
1283   EmpathyTpChat *self = user_data;
1284   GError *error = NULL;
1285
1286   if (!tp_proxy_prepare_finish (source, result, &error))
1287     {
1288       DEBUG ("Failed to prepare Password: %s", error->message);
1289       g_error_free (error);
1290     }
1291
1292   self->priv->preparing_password = FALSE;
1293
1294   check_almost_ready (self);
1295 }
1296
1297 static void
1298 continue_preparing (EmpathyTpChat *self)
1299 {
1300   TpChannel *channel = (TpChannel *) self;
1301   TpConnection *connection;
1302   gboolean listen_for_dbus_properties_changed = FALSE;
1303
1304   connection = tp_channel_get_connection (channel);
1305
1306   if (tp_proxy_has_interface_by_id (self,
1307         TP_IFACE_QUARK_CHANNEL_INTERFACE_PASSWORD))
1308     {
1309       /* The password feature can't be a hard dep on our own feature has we
1310        * depend on it only if the channel implements the
1311        * Password interface.
1312        */
1313       GQuark features[] = { TP_CHANNEL_FEATURE_PASSWORD , 0 };
1314
1315       self->priv->preparing_password = TRUE;
1316
1317       tp_proxy_prepare_async (self, features, password_feature_prepare_cb,
1318           self);
1319     }
1320
1321   if (tp_proxy_has_interface_by_id (self,
1322             TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
1323     {
1324       GPtrArray *contacts;
1325       TpContact *contact;
1326
1327       /* Get self contact from the group's self handle */
1328       contact = tp_channel_group_get_self_contact (channel);
1329       create_self_contact (self, contact);
1330
1331       /* Get initial member contacts */
1332       contacts = tp_channel_group_dup_members_contacts (channel);
1333       add_members_contact (self, contacts);
1334       g_ptr_array_unref (contacts);
1335
1336       self->priv->can_upgrade_to_muc = FALSE;
1337
1338       tp_g_signal_connect_object (self, "group-contacts-changed",
1339         G_CALLBACK (tp_chat_group_contacts_changed_cb), self, 0);
1340     }
1341   else
1342     {
1343       TpCapabilities *caps;
1344       GVariant *classes, *class;
1345       GVariantIter iter;
1346       TpContact *contact;
1347
1348       /* Get the self contact from the connection's self handle */
1349       contact = tp_connection_get_self_contact (connection);
1350       create_self_contact (self, contact);
1351
1352       /* Get the remote contact */
1353       contact = tp_channel_get_target_contact (channel);
1354       create_remote_contact (self, contact);
1355
1356       caps = tp_connection_get_capabilities (connection);
1357       g_assert (caps != NULL);
1358
1359       classes = tp_capabilities_dup_channel_classes_variant (caps);
1360
1361       g_variant_iter_init (&iter, classes);
1362       while ((class = g_variant_iter_next_value (&iter)))
1363         {
1364           GVariant *fixed, *allowed;
1365           const gchar *chan_type = NULL;
1366
1367           fixed = g_variant_get_child_value (class, 0);
1368           allowed = g_variant_get_child_value (class, 1);
1369
1370           g_variant_lookup (fixed, TP_PROP_CHANNEL_CHANNEL_TYPE, "&s",
1371               &chan_type);
1372           if (!tp_strdiff (chan_type, TP_IFACE_CHANNEL_TYPE_TEXT))
1373             {
1374               const gchar **oprops;
1375
1376               oprops = g_variant_get_strv (allowed, NULL);
1377
1378               if (tp_strv_contains (oprops,
1379                     TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS))
1380                 {
1381                   self->priv->can_upgrade_to_muc = TRUE;
1382                 }
1383
1384               g_free (oprops);
1385             }
1386
1387           g_variant_unref (class);
1388           g_variant_unref (fixed);
1389           g_variant_unref (allowed);
1390
1391           if (self->priv->can_upgrade_to_muc)
1392             break;
1393         }
1394
1395       g_variant_unref (classes);
1396     }
1397
1398   if (tp_proxy_has_interface_by_id (self,
1399             TP_IFACE_QUARK_CHANNEL_INTERFACE_SUBJECT))
1400     {
1401       tp_cli_dbus_properties_call_get_all (channel, -1,
1402                    TP_IFACE_CHANNEL_INTERFACE_SUBJECT,
1403                    tp_chat_get_all_subject_cb,
1404                    NULL, NULL,
1405                    G_OBJECT (self));
1406       listen_for_dbus_properties_changed = TRUE;
1407     }
1408
1409   if (tp_proxy_has_interface_by_id (self,
1410             TP_IFACE_QUARK_CHANNEL_INTERFACE_ROOM_CONFIG))
1411     {
1412       tp_cli_dbus_properties_call_get_all (channel, -1,
1413                    TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG,
1414                    tp_chat_get_all_room_config_cb,
1415                    NULL, NULL,
1416                    G_OBJECT (self));
1417       listen_for_dbus_properties_changed = TRUE;
1418     }
1419
1420   if (listen_for_dbus_properties_changed)
1421     {
1422       tp_cli_dbus_properties_connect_to_properties_changed (channel,
1423                         tp_chat_dbus_properties_changed_cb,
1424                         NULL, NULL,
1425                         G_OBJECT (self), NULL);
1426     }
1427 }
1428
1429 static void
1430 conn_connected_cb (GObject *source,
1431     GAsyncResult *result,
1432     gpointer user_data)
1433 {
1434   EmpathyTpChat *self = user_data;
1435   GError *error = NULL;
1436
1437   if (!tp_proxy_prepare_finish (source, result, &error))
1438     {
1439       DEBUG ("Failed to prepare Connected: %s", error->message);
1440       g_simple_async_result_take_error (self->priv->ready_result, error);
1441       g_simple_async_result_complete (self->priv->ready_result);
1442       tp_clear_object (&self->priv->ready_result);
1443       return;
1444     }
1445
1446   continue_preparing (self);
1447 }
1448
1449 static void
1450 tp_chat_prepare_ready_async (TpProxy *proxy,
1451   const TpProxyFeature *feature,
1452   GAsyncReadyCallback callback,
1453   gpointer user_data)
1454 {
1455   EmpathyTpChat *self = (EmpathyTpChat *) proxy;
1456   TpChannel *channel = (TpChannel *) proxy;
1457   TpConnection *connection;
1458   GQuark features[] = { TP_CONNECTION_FEATURE_CONNECTED, 0 };
1459
1460   g_assert (self->priv->ready_result == NULL);
1461
1462   self->priv->ready_result = g_simple_async_result_new (G_OBJECT (self),
1463     callback, user_data, tp_chat_prepare_ready_async);
1464
1465   connection = tp_channel_get_connection (channel);
1466
1467   /* First we have to make sure that TP_CONNECTION_FEATURE_CONNECTED is
1468    * prepared as we rely on TpConnection::self-contact
1469    * in continue_preparing().
1470    *
1471    * It would be nice if tp-glib could do this for us: fdo#59126 */
1472   tp_proxy_prepare_async (connection, features, conn_connected_cb, proxy);
1473 }