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