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 #include <telepathy-glib/telepathy-glib-dbus.h>
  26
  27 #include "empathy-request-util.h"
  28 #include "empathy-utils.h"
  29
  30 #define DEBUG_FLAG EMPATHY_DEBUG_TP | EMPATHY_DEBUG_CHAT
  31 #include "empathy-debug.h"
  32
  33 struct _EmpathyTpChatPrivate
  34 {
  35   TpAccount *account;
  36   EmpathyContact *user;
  37   EmpathyContact *remote_contact;
  38   GList *members;
  39   /* Queue of messages signalled but not acked yet */
  40   GQueue *pending_messages_queue;
  41
  42   /* Subject */
  43   gboolean supports_subject;
  44   gboolean can_set_subject;
  45   gchar *subject;
  46   gchar *subject_actor;
  47
  48   /* Room config (for now, we only track the title and don't support
  49    * setting it) */
  50   gchar *title;
  51
  52   gboolean can_upgrade_to_muc;
  53
  54   GHashTable *messages_being_sent;
  55
  56   /* GSimpleAsyncResult used when preparing EMPATHY_TP_CHAT_FEATURE_CORE */
  57   GSimpleAsyncResult *ready_result;
  58   gboolean preparing_password;
  59 };
  60
  61 enum
  62 {
  63   PROP_0,
  64   PROP_ACCOUNT,
  65   PROP_SELF_CONTACT,
  66   PROP_REMOTE_CONTACT,
  67   PROP_N_MESSAGES_SENDING,
  68   PROP_TITLE,
  69   PROP_SUBJECT,
  70 };
  71
  72 enum
  73 {
  74   MESSAGE_RECEIVED,
  75   SEND_ERROR,
  76   MESSAGE_ACKNOWLEDGED,
  77   SIG_MEMBER_RENAMED,
  78   SIG_MEMBERS_CHANGED,
  79   LAST_SIGNAL
  80 };
  81
  82 static guint signals[LAST_SIGNAL];
  83
  84 G_DEFINE_TYPE (EmpathyTpChat, empathy_tp_chat, TP_TYPE_TEXT_CHANNEL)
  85
  86 static void
  87 tp_chat_set_delivery_status (EmpathyTpChat *self,
  88     const gchar *token,
  89     EmpathyDeliveryStatus delivery_status)
  90 {
  91   TpDeliveryReportingSupportFlags flags =
  92     tp_text_channel_get_delivery_reporting_support (
  93       TP_TEXT_CHANNEL (self));
  94
  95   /* channel must support receiving failures and successes */
  96   if (!tp_str_empty (token) &&
  97       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_FAILURES &&
  98       flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_SUCCESSES)
  99     {
 100       DEBUG ("Delivery status (%s) = %u", token, delivery_status);
 101
 102       switch (delivery_status)
 103         {
 104           case EMPATHY_DELIVERY_STATUS_NONE:
 105             g_hash_table_remove (self->priv->messages_being_sent,
 106               token);
 107             break;
 108
 109           default:
 110             g_hash_table_insert (self->priv->messages_being_sent,
 111               g_strdup (token),
 112               GUINT_TO_POINTER (delivery_status));
 113             break;
 114         }
 115
 116     g_object_notify (G_OBJECT (self), "n-messages-sending");
 117   }
 118 }
 119
 120 static void tp_chat_prepare_ready_async (TpProxy *proxy,
 121   const TpProxyFeature *feature,
 122   GAsyncReadyCallback callback,
 123   gpointer user_data);
 124
 125 static void
 126 tp_chat_async_cb (TpChannel *proxy,
 127     const GError *error,
 128     gpointer user_data,
 129     GObject *weak_object)
 130 {
 131   if (error != NULL)
 132     DEBUG ("Error %s: %s", (gchar *) user_data, error->message);
 133 }
 134
 135 static void
 136 update_config_cb (TpChannel *proxy,
 137     const GError *error,
 138     gpointer user_data,
 139     GObject *weak_object)
 140 {
 141   if (error != NULL)
 142     DEBUG ("Failed to change config of the room: %s", error->message);
 143 }
 144
 145 static void
 146 create_conference_cb (GObject *source,
 147     GAsyncResult *result,
 148     gpointer user_data)
 149 {
 150   TpChannel *channel;
 151   GError *error = NULL;
 152   GHashTable *props;
 153
 154   channel = tp_account_channel_request_create_and_observe_channel_finish (
 155       TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error);
 156   if (channel == NULL)
 157     {
 158       DEBUG ("Failed to create conference channel: %s", error->message);
 159       g_error_free (error);
 160       return;
 161     }
 162
 163   /* Make the channel more confidential as only people invited are supposed to
 164    * join it. */
 165   props = tp_asv_new (
 166       "Private", G_TYPE_BOOLEAN, TRUE,
 167       "InviteOnly", G_TYPE_BOOLEAN, TRUE,
 168       NULL);
 169
 170   tp_cli_channel_interface_room_config_call_update_configuration (channel, -1,
 171       props, update_config_cb, NULL, NULL, NULL);
 172
 173   g_object_unref (channel);
 174   g_hash_table_unref (props);
 175 }
 176
 177 void
 178 empathy_tp_chat_add (EmpathyTpChat *self,
 179     EmpathyContact *contact,
 180     const gchar *message)
 181 {
 182   TpChannel *channel = (TpChannel *) self;
 183
 184   if (tp_proxy_has_interface_by_id (self,
 185     TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
 186     {
 187       TpHandle handle;
 188       GArray handles = {(gchar *) &handle, 1};
 189
 190       g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 191
 192       handle = empathy_contact_get_handle (contact);
 193       tp_cli_channel_interface_group_call_add_members (channel,
 194         -1, &handles, NULL, NULL, NULL, NULL, NULL);
 195     }
 196   else if (self->priv->can_upgrade_to_muc)
 197     {
 198       TpAccountChannelRequest *req;
 199       const gchar *channels[2] = { NULL, };
 200       const char *invitees[2] = { NULL, };
 201       TpAccount *account;
 202
 203       invitees[0] = empathy_contact_get_id (contact);
 204       channels[0] = tp_proxy_get_object_path (self);
 205
 206       account = empathy_tp_chat_get_account (self);
 207
 208       req = tp_account_channel_request_new_text (account,
 209         TP_USER_ACTION_TIME_NOT_USER_ACTION);
 210
 211       tp_account_channel_request_set_request_property (req,
 212           TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
 213           g_variant_new_uint32 (TP_HANDLE_TYPE_NONE));
 214
 215       tp_account_channel_request_set_request_property (req,
 216           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS,
 217           g_variant_new_objv (channels, -1));
 218
 219       tp_account_channel_request_set_request_property (req,
 220           TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_INVITEE_IDS,
 221           g_variant_new_strv (invitees, -1));
 222
 223       /* FIXME: InvitationMessage ? */
 224
 225       /* Although this is a MUC, it's anonymous, so CreateChannel is
 226        * valid. */
 227       tp_account_channel_request_create_and_observe_channel_async (req,
 228           EMPATHY_CHAT_TP_BUS_NAME, NULL, create_conference_cb, NULL);
 229
 230       g_object_unref (req);
 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[3] = {0, 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   need[1] = TP_CHANNEL_FEATURE_CONTACTS;
 977   features[FEAT_READY].depends_on = need;
 978   features[FEAT_READY].prepare_async =
 979     tp_chat_prepare_ready_async;
 980
 981   /* assert that the terminator at the end is there */
 982   g_assert (features[N_FEAT].name == 0);
 983
 984   return features;
 985 }
 986
 987 static void
 988 empathy_tp_chat_class_init (EmpathyTpChatClass *klass)
 989 {
 990   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 991   TpProxyClass *proxy_class = TP_PROXY_CLASS (klass);
 992
 993   object_class->dispose = tp_chat_dispose;
 994   object_class->finalize = tp_chat_finalize;
 995   object_class->get_property = tp_chat_get_property;
 996
 997   proxy_class->list_features = tp_chat_list_features;
 998
 999   /**
1000    * EmpathyTpChat:self-contact:
1001    *
1002    * Not to be confused with TpChannel:group-self-contact.
1003    */
1004   g_object_class_install_property (object_class, PROP_SELF_CONTACT,
1005       g_param_spec_object ("self-contact", "The local contact",
1006         "The EmpathyContact for the local user on this channel",
1007         EMPATHY_TYPE_CONTACT,
1008         G_PARAM_READABLE));
1009
1010   g_object_class_install_property (object_class, PROP_REMOTE_CONTACT,
1011       g_param_spec_object ("remote-contact", "The remote contact",
1012         "The remote contact if there is no group iface on the channel",
1013         EMPATHY_TYPE_CONTACT,
1014         G_PARAM_READABLE));
1015
1016   g_object_class_install_property (object_class, PROP_N_MESSAGES_SENDING,
1017       g_param_spec_uint ("n-messages-sending", "Num Messages Sending",
1018         "The number of messages being sent",
1019         0, G_MAXUINT, 0,
1020         G_PARAM_READABLE));
1021
1022   g_object_class_install_property (object_class, PROP_TITLE,
1023       g_param_spec_string ("title", "Title",
1024         "A human-readable name for the room, if any",
1025         NULL,
1026         G_PARAM_READABLE |
1027         G_PARAM_STATIC_STRINGS));
1028
1029   g_object_class_install_property (object_class, PROP_SUBJECT,
1030       g_param_spec_string ("subject", "Subject",
1031         "The room's current subject, if any",
1032         NULL,
1033         G_PARAM_READABLE |
1034         G_PARAM_STATIC_STRINGS));
1035
1036   /* Signals */
1037   signals[MESSAGE_RECEIVED] = g_signal_new ("message-received-empathy",
1038       G_TYPE_FROM_CLASS (klass),
1039       G_SIGNAL_RUN_LAST,
1040       0,
1041       NULL, NULL,
1042       g_cclosure_marshal_generic,
1043       G_TYPE_NONE,
1044       1, EMPATHY_TYPE_MESSAGE);
1045
1046   signals[SEND_ERROR] = g_signal_new ("send-error",
1047       G_TYPE_FROM_CLASS (klass),
1048       G_SIGNAL_RUN_LAST,
1049       0,
1050       NULL, NULL,
1051       g_cclosure_marshal_generic,
1052       G_TYPE_NONE,
1053       3, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING);
1054
1055   signals[MESSAGE_ACKNOWLEDGED] = g_signal_new ("message-acknowledged",
1056       G_TYPE_FROM_CLASS (klass),
1057       G_SIGNAL_RUN_LAST,
1058       0,
1059       NULL, NULL,
1060       g_cclosure_marshal_generic,
1061       G_TYPE_NONE,
1062       1, EMPATHY_TYPE_MESSAGE);
1063
1064   signals[SIG_MEMBER_RENAMED] = g_signal_new ("member-renamed",
1065       G_OBJECT_CLASS_TYPE (klass),
1066       G_SIGNAL_RUN_LAST,
1067       0, NULL, NULL, NULL,
1068       G_TYPE_NONE,
1069       4, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1070       G_TYPE_UINT, G_TYPE_STRING);
1071
1072   signals[SIG_MEMBERS_CHANGED] = g_signal_new ("members-changed",
1073       G_OBJECT_CLASS_TYPE (klass),
1074       G_SIGNAL_RUN_LAST,
1075       0, NULL, NULL, NULL,
1076       G_TYPE_NONE,
1077       5, EMPATHY_TYPE_CONTACT, EMPATHY_TYPE_CONTACT,
1078       G_TYPE_UINT, G_TYPE_STRING, G_TYPE_BOOLEAN);
1079
1080   g_type_class_add_private (object_class, sizeof (EmpathyTpChatPrivate));
1081 }
1082
1083 static void
1084 empathy_tp_chat_init (EmpathyTpChat *self)
1085 {
1086   self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_TP_CHAT,
1087       EmpathyTpChatPrivate);
1088
1089   self->priv->pending_messages_queue = g_queue_new ();
1090   self->priv->messages_being_sent = g_hash_table_new_full (
1091       g_str_hash, g_str_equal, g_free, NULL);
1092 }
1093
1094 EmpathyTpChat *
1095 empathy_tp_chat_new (TpSimpleClientFactory *factory,
1096     TpConnection *conn,
1097     const gchar *object_path,
1098     const GHashTable *immutable_properties)
1099 {
1100   g_return_val_if_fail (TP_IS_CONNECTION (conn), NULL);
1101   g_return_val_if_fail (immutable_properties != NULL, NULL);
1102
1103   return g_object_new (EMPATHY_TYPE_TP_CHAT,
1104       "factory", factory,
1105        "connection", conn,
1106        "dbus-daemon", tp_proxy_get_dbus_daemon (conn),
1107        "bus-name", tp_proxy_get_bus_name (conn),
1108        "object-path", object_path,
1109        "channel-properties", immutable_properties,
1110        NULL);
1111 }
1112
1113 const gchar *
1114 empathy_tp_chat_get_id (EmpathyTpChat *self)
1115 {
1116   const gchar *id;
1117
1118   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1119
1120   id = tp_channel_get_identifier ((TpChannel *) self);
1121   if (!TPAW_STR_EMPTY (id))
1122     return id;
1123   else if (self->priv->remote_contact)
1124     return empathy_contact_get_id (self->priv->remote_contact);
1125   else
1126     return NULL;
1127
1128 }
1129
1130 EmpathyContact *
1131 empathy_tp_chat_get_remote_contact (EmpathyTpChat *self)
1132 {
1133   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1134
1135   return self->priv->remote_contact;
1136 }
1137
1138 TpAccount *
1139 empathy_tp_chat_get_account (EmpathyTpChat *self)
1140 {
1141   TpConnection *connection;
1142
1143   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1144
1145   connection = tp_channel_get_connection (TP_CHANNEL (self));
1146
1147   return tp_connection_get_account (connection);
1148 }
1149
1150 void
1151 empathy_tp_chat_send (EmpathyTpChat *self,
1152           TpMessage *message)
1153 {
1154   gchar *message_body;
1155
1156   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1157   g_return_if_fail (TP_IS_CLIENT_MESSAGE (message));
1158
1159   message_body = tp_message_to_text (message, NULL);
1160
1161   DEBUG ("Sending message: %s", message_body);
1162
1163   tp_text_channel_send_message_async (TP_TEXT_CHANNEL (self),
1164     message, TP_MESSAGE_SENDING_FLAG_REPORT_DELIVERY,
1165     message_send_cb, self);
1166
1167   g_free (message_body);
1168 }
1169
1170 const GList *
1171 empathy_tp_chat_get_pending_messages (EmpathyTpChat *self)
1172 {
1173   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1174
1175   return self->priv->pending_messages_queue->head;
1176 }
1177
1178 void
1179 empathy_tp_chat_acknowledge_message (EmpathyTpChat *self,
1180     EmpathyMessage *message)
1181 {
1182   TpMessage *tp_msg;
1183
1184   g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1185
1186   if (!empathy_message_is_incoming (message))
1187     return;
1188
1189   tp_msg = empathy_message_get_tp_message (message);
1190   tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
1191              tp_msg, NULL, NULL);
1192 }
1193
1194 /**
1195  * empathy_tp_chat_can_add_contact:
1196  *
1197  * Returns: %TRUE if empathy_contact_list_add() will work for this channel.
1198  * That is if this chat is a 1-to-1 channel that can be upgraded to
1199  * a MUC using the Conference interface or if the channel is a MUC.
1200  */
1201 gboolean
1202 empathy_tp_chat_can_add_contact (EmpathyTpChat *self)
1203 {
1204   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), FALSE);
1205
1206   return self->priv->can_upgrade_to_muc ||
1207     tp_proxy_has_interface_by_id (self,
1208       TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);;
1209 }
1210
1211 static void
1212 tp_channel_leave_async_cb (GObject *source_object,
1213         GAsyncResult *res,
1214         gpointer user_data)
1215 {
1216   GError *error = NULL;
1217
1218   if (!tp_channel_leave_finish (TP_CHANNEL (source_object), res, &error))
1219     {
1220       DEBUG ("Could not leave channel properly: (%s); closing the channel",
1221         error->message);
1222       g_error_free (error);
1223     }
1224 }
1225
1226 void
1227 empathy_tp_chat_leave (EmpathyTpChat *self,
1228     const gchar *message)
1229 {
1230   TpChannel *channel = (TpChannel *) self;
1231
1232   DEBUG ("Leaving channel %s with message \"%s\"",
1233     tp_channel_get_identifier (channel), message);
1234
1235   tp_channel_leave_async (channel, TP_CHANNEL_GROUP_CHANGE_REASON_NONE,
1236     message, tp_channel_leave_async_cb, self);
1237 }
1238
1239 gboolean
1240 empathy_tp_chat_is_invited (EmpathyTpChat *self,
1241     TpContact **inviter)
1242 {
1243   TpContact *self_contact;
1244   TpChannel *channel = TP_CHANNEL (self);
1245
1246   if (!tp_proxy_has_interface (self, TP_IFACE_CHANNEL_INTERFACE_GROUP))
1247     return FALSE;
1248
1249   self_contact = tp_channel_group_get_self_contact (channel);
1250   if (self_contact == NULL)
1251     return FALSE;
1252
1253   return tp_channel_group_get_local_pending_contact_info (channel,
1254       self_contact, inviter, NULL, NULL);
1255 }
1256
1257 TpChannelChatState
1258 empathy_tp_chat_get_chat_state (EmpathyTpChat *self,
1259     EmpathyContact *contact)
1260 {
1261   return tp_text_channel_get_chat_state ((TpTextChannel *) self,
1262     empathy_contact_get_tp_contact (contact));
1263 }
1264
1265 EmpathyContact *
1266 empathy_tp_chat_get_self_contact (EmpathyTpChat *self)
1267 {
1268   g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1269
1270   return self->priv->user;
1271 }
1272
1273 GQuark
1274 empathy_tp_chat_get_feature_ready (void)
1275 {
1276   return g_quark_from_static_string ("empathy-tp-chat-feature-ready");
1277 }
1278
1279 static void
1280 password_feature_prepare_cb (GObject *source,
1281     GAsyncResult *result,
1282     gpointer user_data)
1283 {
1284   EmpathyTpChat *self = user_data;
1285   GError *error = NULL;
1286
1287   if (!tp_proxy_prepare_finish (source, result, &error))
1288     {
1289       DEBUG ("Failed to prepare Password: %s", error->message);
1290       g_error_free (error);
1291     }
1292
1293   self->priv->preparing_password = FALSE;
1294
1295   check_almost_ready (self);
1296 }
1297
1298 static void
1299 continue_preparing (EmpathyTpChat *self)
1300 {
1301   TpChannel *channel = (TpChannel *) self;
1302   TpConnection *connection;
1303   gboolean listen_for_dbus_properties_changed = FALSE;
1304
1305   connection = tp_channel_get_connection (channel);
1306
1307   if (tp_proxy_has_interface_by_id (self,
1308         TP_IFACE_QUARK_CHANNEL_INTERFACE_PASSWORD))
1309     {
1310       /* The password feature can't be a hard dep on our own feature has we
1311        * depend on it only if the channel implements the
1312        * Password interface.
1313        */
1314       GQuark features[] = { TP_CHANNEL_FEATURE_PASSWORD , 0 };
1315
1316       self->priv->preparing_password = TRUE;
1317
1318       tp_proxy_prepare_async (self, features, password_feature_prepare_cb,
1319           self);
1320     }
1321
1322   if (tp_proxy_has_interface_by_id (self,
1323             TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP))
1324     {
1325       GPtrArray *contacts;
1326       TpContact *contact;
1327
1328       /* Get self contact from the group's self handle */
1329       contact = tp_channel_group_get_self_contact (channel);
1330       create_self_contact (self, contact);
1331
1332       /* Get initial member contacts */
1333       contacts = tp_channel_group_dup_members_contacts (channel);
1334       add_members_contact (self, contacts);
1335       g_ptr_array_unref (contacts);
1336
1337       self->priv->can_upgrade_to_muc = FALSE;
1338
1339       tp_g_signal_connect_object (self, "group-contacts-changed",
1340         G_CALLBACK (tp_chat_group_contacts_changed_cb), self, 0);
1341     }
1342   else
1343     {
1344       TpCapabilities *caps;
1345       GVariant *classes, *class;
1346       GVariantIter iter;
1347       TpContact *contact;
1348
1349       /* Get the self contact from the connection's self handle */
1350       contact = tp_connection_get_self_contact (connection);
1351       create_self_contact (self, contact);
1352
1353       /* Get the remote contact */
1354       contact = tp_channel_get_target_contact (channel);
1355       create_remote_contact (self, contact);
1356
1357       caps = tp_connection_get_capabilities (connection);
1358       g_assert (caps != NULL);
1359
1360       classes = tp_capabilities_dup_channel_classes_variant (caps);
1361
1362       g_variant_iter_init (&iter, classes);
1363       while ((class = g_variant_iter_next_value (&iter)))
1364         {
1365           GVariant *fixed, *allowed;
1366           const gchar *chan_type = NULL;
1367
1368           fixed = g_variant_get_child_value (class, 0);
1369           allowed = g_variant_get_child_value (class, 1);
1370
1371           g_variant_lookup (fixed, TP_PROP_CHANNEL_CHANNEL_TYPE, "&s",
1372               &chan_type);
1373           if (!tp_strdiff (chan_type, TP_IFACE_CHANNEL_TYPE_TEXT))
1374             {
1375               const gchar **oprops;
1376
1377               oprops = g_variant_get_strv (allowed, NULL);
1378
1379               if (tp_strv_contains (oprops,
1380                     TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS))
1381                 {
1382                   self->priv->can_upgrade_to_muc = TRUE;
1383                 }
1384
1385               g_free (oprops);
1386             }
1387
1388           g_variant_unref (class);
1389           g_variant_unref (fixed);
1390           g_variant_unref (allowed);
1391
1392           if (self->priv->can_upgrade_to_muc)
1393             break;
1394         }
1395
1396       g_variant_unref (classes);
1397     }
1398
1399   if (tp_proxy_has_interface_by_id (self,
1400             TP_IFACE_QUARK_CHANNEL_INTERFACE_SUBJECT))
1401     {
1402       tp_cli_dbus_properties_call_get_all (channel, -1,
1403                    TP_IFACE_CHANNEL_INTERFACE_SUBJECT,
1404                    tp_chat_get_all_subject_cb,
1405                    NULL, NULL,
1406                    G_OBJECT (self));
1407       listen_for_dbus_properties_changed = TRUE;
1408     }
1409
1410   if (tp_proxy_has_interface_by_id (self,
1411             TP_IFACE_QUARK_CHANNEL_INTERFACE_ROOM_CONFIG))
1412     {
1413       tp_cli_dbus_properties_call_get_all (channel, -1,
1414                    TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG,
1415                    tp_chat_get_all_room_config_cb,
1416                    NULL, NULL,
1417                    G_OBJECT (self));
1418       listen_for_dbus_properties_changed = TRUE;
1419     }
1420
1421   if (listen_for_dbus_properties_changed)
1422     {
1423       tp_cli_dbus_properties_connect_to_properties_changed (channel,
1424                         tp_chat_dbus_properties_changed_cb,
1425                         NULL, NULL,
1426                         G_OBJECT (self), NULL);
1427     }
1428 }
1429
1430 static void
1431 conn_connected_cb (GObject *source,
1432     GAsyncResult *result,
1433     gpointer user_data)
1434 {
1435   EmpathyTpChat *self = user_data;
1436   GError *error = NULL;
1437
1438   if (!tp_proxy_prepare_finish (source, result, &error))
1439     {
1440       DEBUG ("Failed to prepare Connected: %s", error->message);
1441       g_simple_async_result_take_error (self->priv->ready_result, error);
1442       g_simple_async_result_complete (self->priv->ready_result);
1443       tp_clear_object (&self->priv->ready_result);
1444       return;
1445     }
1446
1447   continue_preparing (self);
1448 }
1449
1450 static void
1451 tp_chat_prepare_ready_async (TpProxy *proxy,
1452   const TpProxyFeature *feature,
1453   GAsyncReadyCallback callback,
1454   gpointer user_data)
1455 {
1456   EmpathyTpChat *self = (EmpathyTpChat *) proxy;
1457   TpChannel *channel = (TpChannel *) proxy;
1458   TpConnection *connection;
1459   GQuark features[] = { TP_CONNECTION_FEATURE_CONNECTED, 0 };
1460
1461   g_assert (self->priv->ready_result == NULL);
1462
1463   self->priv->ready_result = g_simple_async_result_new (G_OBJECT (self),
1464     callback, user_data, tp_chat_prepare_ready_async);
1465
1466   connection = tp_channel_get_connection (channel);
1467
1468   /* First we have to make sure that TP_CONNECTION_FEATURE_CONNECTED is
1469    * prepared as we rely on TpConnection::self-contact
1470    * in continue_preparing().
1471    *
1472    * It would be nice if tp-glib could do this for us: fdo#59126 */
1473   tp_proxy_prepare_async (connection, features, conn_connected_cb, proxy);
1474 }