libempathy/empathy-tp-chat.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Xavier Claessens <xclaesse@gmail.com>
  20  */
  21
  22 #include <config.h>
  23
  24 #include <string.h>
  25
  26 #include <telepathy-glib/telepathy-glib.h>
  27
  28 #include <extensions/extensions.h>
  29
  30 #include "empathy-tp-chat.h"
  31 #include "empathy-tp-contact-factory.h"
  32 #include "empathy-contact-list.h"
  33 #include "empathy-request-util.h"
  34 #include "empathy-time.h"
  35 #include "empathy-utils.h"
  36
  37 #define DEBUG_FLAG EMPATHY_DEBUG_TP | EMPATHY_DEBUG_CHAT
  38 #include "empathy-debug.h"
  39
  40 struct _EmpathyTpChatPrivate {
  41         TpAccount             *account;
  42         EmpathyContact        *user;
  43         EmpathyContact        *remote_contact;
  44         GList                 *members;
  45         /* Queue of messages not signalled yet */
  46         GQueue                *messages_queue;
  47         /* Queue of messages signalled but not acked yet */
  48         GQueue                *pending_messages_queue;
  49
  50         /* Subject */
  51         gboolean               supports_subject;
  52         gboolean               can_set_subject;
  53         gchar                 *subject;
  54
  55         /* Room config (for now, we only track the title and don't support
  56          * setting it) */
  57         gchar                 *title;
  58
  59         gboolean               can_upgrade_to_muc;
  60
  61         GHashTable            *messages_being_sent;
  62
  63         /* GSimpleAsyncResult used when preparing EMPATHY_TP_CHAT_FEATURE_CORE */
  64         GSimpleAsyncResult    *ready_result;
  65 };
  66
  67 static void tp_chat_iface_init         (EmpathyContactListIface *iface);
  68
  69 enum {
  70         PROP_0,
  71         PROP_ACCOUNT,
  72         PROP_REMOTE_CONTACT,
  73         PROP_N_MESSAGES_SENDING,
  74         PROP_TITLE,
  75         PROP_SUBJECT,
  76 };
  77
  78 enum {
  79         MESSAGE_RECEIVED,
  80         SEND_ERROR,
  81         CHAT_STATE_CHANGED,
  82         MESSAGE_ACKNOWLEDGED,
  83         LAST_SIGNAL
  84 };
  85
  86 static guint signals[LAST_SIGNAL];
  87
  88 G_DEFINE_TYPE_WITH_CODE (EmpathyTpChat, empathy_tp_chat, TP_TYPE_TEXT_CHANNEL,
  89                          G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CONTACT_LIST,
  90                                                 tp_chat_iface_init));
  91
  92 static void
  93 tp_chat_set_delivery_status (EmpathyTpChat         *self,
  94                              const gchar           *token,
  95                              EmpathyDeliveryStatus  delivery_status)
  96 {
  97         TpDeliveryReportingSupportFlags flags =
  98                 tp_text_channel_get_delivery_reporting_support (
  99                         TP_TEXT_CHANNEL (self));
 100
 101         /* channel must support receiving failures and successes */
 102         if (!tp_str_empty (token) &&
 103             flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_FAILURES &&
 104             flags & TP_DELIVERY_REPORTING_SUPPORT_FLAG_RECEIVE_SUCCESSES) {
 105
 106                 DEBUG ("Delivery status (%s) = %u", token, delivery_status);
 107
 108                 switch (delivery_status) {
 109                         case EMPATHY_DELIVERY_STATUS_NONE:
 110                                 g_hash_table_remove (self->priv->messages_being_sent,
 111                                         token);
 112                                 break;
 113
 114                         default:
 115                                 g_hash_table_insert (self->priv->messages_being_sent,
 116                                         g_strdup (token),
 117                                         GUINT_TO_POINTER (delivery_status));
 118                                 break;
 119                 }
 120
 121                 g_object_notify (G_OBJECT (self), "n-messages-sending");
 122         }
 123 }
 124
 125 static void tp_chat_prepare_ready_async (TpProxy *proxy,
 126         const TpProxyFeature *feature,
 127         GAsyncReadyCallback callback,
 128         gpointer user_data);
 129
 130 static void
 131 tp_chat_async_cb (TpChannel *proxy,
 132                   const GError *error,
 133                   gpointer user_data,
 134                   GObject *weak_object)
 135 {
 136         if (error) {
 137                 DEBUG ("Error %s: %s", (gchar *) user_data, error->message);
 138         }
 139 }
 140
 141 static void
 142 create_conference_cb (GObject *source,
 143                       GAsyncResult *result,
 144                       gpointer user_data)
 145 {
 146         GError *error = NULL;
 147
 148         if (!tp_account_channel_request_create_channel_finish (
 149                         TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error)) {
 150                 DEBUG ("Failed to create conference channel: %s", error->message);
 151                 g_error_free (error);
 152         }
 153 }
 154
 155 static void
 156 tp_chat_add (EmpathyContactList *list,
 157              EmpathyContact     *contact,
 158              const gchar        *message)
 159 {
 160         EmpathyTpChat *self = (EmpathyTpChat *) list;
 161         TpChannel *channel = (TpChannel *) self;
 162
 163         if (tp_proxy_has_interface_by_id (self,
 164                 TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP)) {
 165                 TpHandle           handle;
 166                 GArray             handles = {(gchar *) &handle, 1};
 167
 168                 g_return_if_fail (EMPATHY_IS_TP_CHAT (list));
 169                 g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 170
 171                 handle = empathy_contact_get_handle (contact);
 172                 tp_cli_channel_interface_group_call_add_members (channel,
 173                         -1, &handles, NULL, NULL, NULL, NULL, NULL);
 174         } else if (self->priv->can_upgrade_to_muc) {
 175                 TpAccountChannelRequest *req;
 176                 GHashTable        *props;
 177                 const char        *object_path;
 178                 GPtrArray          channels = { (gpointer *) &object_path, 1 };
 179                 const char        *invitees[2] = { NULL, };
 180
 181                 invitees[0] = empathy_contact_get_id (contact);
 182                 object_path = tp_proxy_get_object_path (self);
 183
 184                 props = tp_asv_new (
 185                     TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 186                         TP_IFACE_CHANNEL_TYPE_TEXT,
 187                     TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT,
 188                         TP_HANDLE_TYPE_NONE,
 189                     TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS,
 190                         TP_ARRAY_TYPE_OBJECT_PATH_LIST, &channels,
 191                     TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_INVITEE_IDS,
 192                         G_TYPE_STRV, invitees,
 193                     /* FIXME: InvitationMessage ? */
 194                     NULL);
 195
 196                 req = tp_account_channel_request_new (self->priv->account, props,
 197                         TP_USER_ACTION_TIME_NOT_USER_ACTION);
 198
 199                 /* Although this is a MUC, it's anonymous, so CreateChannel is
 200                  * valid. */
 201                 tp_account_channel_request_create_channel_async (req, EMPATHY_CHAT_BUS_NAME,
 202                         NULL, create_conference_cb, NULL);
 203
 204                 g_object_unref (req);
 205                 g_hash_table_unref (props);
 206         } else {
 207                 g_warning ("Cannot add to this channel");
 208         }
 209 }
 210
 211 static void
 212 tp_chat_remove (EmpathyContactList *list,
 213                 EmpathyContact     *contact,
 214                 const gchar        *message)
 215 {
 216         EmpathyTpChat *self = (EmpathyTpChat *) list;
 217         TpHandle           handle;
 218         GArray             handles = {(gchar *) &handle, 1};
 219
 220         g_return_if_fail (EMPATHY_IS_TP_CHAT (list));
 221         g_return_if_fail (EMPATHY_IS_CONTACT (contact));
 222
 223         handle = empathy_contact_get_handle (contact);
 224         tp_cli_channel_interface_group_call_remove_members ((TpChannel *) self, -1,
 225                                                             &handles, NULL,
 226                                                             NULL, NULL, NULL,
 227                                                             NULL);
 228 }
 229
 230 static GList *
 231 tp_chat_get_members (EmpathyContactList *list)
 232 {
 233         EmpathyTpChat *self = (EmpathyTpChat *) list;
 234         GList             *members = NULL;
 235
 236         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (list), NULL);
 237
 238         if (self->priv->members) {
 239                 members = g_list_copy (self->priv->members);
 240                 g_list_foreach (members, (GFunc) g_object_ref, NULL);
 241         } else {
 242                 members = g_list_prepend (members, g_object_ref (self->priv->user));
 243                 if (self->priv->remote_contact != NULL)
 244                         members = g_list_prepend (members, g_object_ref (self->priv->remote_contact));
 245         }
 246
 247         return members;
 248 }
 249
 250 static void
 251 check_ready (EmpathyTpChat *self)
 252 {
 253         if (self->priv->ready_result == NULL)
 254                 return;
 255
 256         if (g_queue_get_length (self->priv->messages_queue) > 0)
 257                 return;
 258
 259         DEBUG ("Ready");
 260
 261         g_simple_async_result_complete (self->priv->ready_result);
 262         tp_clear_object (&self->priv->ready_result);
 263 }
 264
 265 static void
 266 tp_chat_emit_queued_messages (EmpathyTpChat *self)
 267 {
 268         EmpathyMessage    *message;
 269
 270         /* Check if we can now emit some queued messages */
 271         while ((message = g_queue_peek_head (self->priv->messages_queue)) != NULL) {
 272                 if (empathy_message_get_sender (message) == NULL) {
 273                         break;
 274                 }
 275
 276                 DEBUG ("Queued message ready");
 277                 g_queue_pop_head (self->priv->messages_queue);
 278                 g_queue_push_tail (self->priv->pending_messages_queue, message);
 279                 g_signal_emit (self, signals[MESSAGE_RECEIVED], 0, message);
 280         }
 281
 282         check_ready (self);
 283 }
 284
 285 static void
 286 tp_chat_got_sender_cb (TpConnection            *connection,
 287                        EmpathyContact          *contact,
 288                        const GError            *error,
 289                        gpointer                 message,
 290                        GObject                 *chat)
 291 {
 292         EmpathyTpChat *self = (EmpathyTpChat *) chat;
 293
 294         if (error) {
 295                 DEBUG ("Error: %s", error->message);
 296                 /* Do not block the message queue, just drop this message */
 297                 g_queue_remove (self->priv->messages_queue, message);
 298         } else {
 299                 empathy_message_set_sender (message, contact);
 300         }
 301
 302         tp_chat_emit_queued_messages (EMPATHY_TP_CHAT (self));
 303 }
 304
 305 static void
 306 tp_chat_build_message (EmpathyTpChat *self,
 307                        TpMessage     *msg,
 308                        gboolean       incoming)
 309 {
 310         EmpathyMessage    *message;
 311         TpContact *sender;
 312
 313         message = empathy_message_new_from_tp_message (msg, incoming);
 314         /* FIXME: this is actually a lie for incoming messages. */
 315         empathy_message_set_receiver (message, self->priv->user);
 316
 317         g_queue_push_tail (self->priv->messages_queue, message);
 318
 319         sender = tp_signalled_message_get_sender (msg);
 320         g_assert (sender != NULL);
 321
 322         if (tp_contact_get_handle (sender) == 0) {
 323                 empathy_message_set_sender (message, self->priv->user);
 324                 tp_chat_emit_queued_messages (self);
 325         } else {
 326                 TpConnection *connection = tp_channel_borrow_connection (
 327                         (TpChannel *) self);
 328
 329                 empathy_tp_contact_factory_get_from_handle (connection,
 330                         tp_contact_get_handle (sender),
 331                         tp_chat_got_sender_cb,
 332                         message, NULL, G_OBJECT (self));
 333         }
 334 }
 335
 336 static void
 337 handle_delivery_report (EmpathyTpChat *self,
 338                 TpMessage *message)
 339 {
 340         TpDeliveryStatus delivery_status;
 341         const GHashTable *header;
 342         TpChannelTextSendError delivery_error;
 343         gboolean valid;
 344         GPtrArray *echo;
 345         const gchar *message_body = NULL;
 346         const gchar *delivery_dbus_error;
 347         const gchar *delivery_token = NULL;
 348
 349         header = tp_message_peek (message, 0);
 350         if (header == NULL)
 351                 goto out;
 352
 353         delivery_token = tp_asv_get_string (header, "delivery-token");
 354         delivery_status = tp_asv_get_uint32 (header, "delivery-status", &valid);
 355
 356         if (!valid) {
 357                 goto out;
 358         } else if (delivery_status == TP_DELIVERY_STATUS_ACCEPTED) {
 359                 DEBUG ("Accepted %s", delivery_token);
 360                 tp_chat_set_delivery_status (self, delivery_token,
 361                         EMPATHY_DELIVERY_STATUS_ACCEPTED);
 362                 goto out;
 363         } else if (delivery_status == TP_DELIVERY_STATUS_DELIVERED) {
 364                 DEBUG ("Delivered %s", delivery_token);
 365                 tp_chat_set_delivery_status (self, delivery_token,
 366                         EMPATHY_DELIVERY_STATUS_NONE);
 367                 goto out;
 368         } else if (delivery_status != TP_DELIVERY_STATUS_PERMANENTLY_FAILED &&
 369                    delivery_status != TP_DELIVERY_STATUS_TEMPORARILY_FAILED) {
 370                 goto out;
 371         }
 372
 373         delivery_error = tp_asv_get_uint32 (header, "delivery-error", &valid);
 374         if (!valid)
 375                 delivery_error = TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 376
 377         delivery_dbus_error = tp_asv_get_string (header, "delivery-dbus-error");
 378
 379         /* TODO: ideally we should use tp-glib API giving us the echoed message as a
 380          * TpMessage. (fdo #35884) */
 381         echo = tp_asv_get_boxed (header, "delivery-echo",
 382                 TP_ARRAY_TYPE_MESSAGE_PART_LIST);
 383         if (echo != NULL && echo->len >= 2) {
 384                 const GHashTable *echo_body;
 385
 386                 echo_body = g_ptr_array_index (echo, 1);
 387                 if (echo_body != NULL)
 388                         message_body = tp_asv_get_string (echo_body, "content");
 389         }
 390
 391         tp_chat_set_delivery_status (self, delivery_token,
 392                         EMPATHY_DELIVERY_STATUS_NONE);
 393         g_signal_emit (self, signals[SEND_ERROR], 0, message_body,
 394                         delivery_error, delivery_dbus_error);
 395
 396 out:
 397         tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 398                 message, NULL, NULL);
 399 }
 400
 401 static void
 402 handle_incoming_message (EmpathyTpChat *self,
 403                          TpMessage *message,
 404                          gboolean pending)
 405 {
 406         gchar *message_body;
 407
 408         if (tp_message_is_delivery_report (message)) {
 409                 handle_delivery_report (self, message);
 410                 return;
 411         }
 412
 413         message_body = tp_message_to_text (message, NULL);
 414
 415         DEBUG ("Message %s (channel %s): %s",
 416                 pending ? "pending" : "received",
 417                 tp_proxy_get_object_path (self), message_body);
 418
 419         if (message_body == NULL) {
 420                 DEBUG ("Empty message with NonTextContent, ignoring and acking.");
 421
 422                 tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
 423                         message, NULL, NULL);
 424                 return;
 425         }
 426
 427         tp_chat_build_message (self, message, TRUE);
 428
 429         g_free (message_body);
 430 }
 431
 432 static void
 433 message_received_cb (TpTextChannel   *channel,
 434                      TpMessage *message,
 435                      EmpathyTpChat *self)
 436 {
 437         handle_incoming_message (self, message, FALSE);
 438 }
 439
 440 static gboolean
 441 find_pending_message_func (gconstpointer a,
 442                            gconstpointer b)
 443 {
 444         EmpathyMessage *msg = (EmpathyMessage *) a;
 445         TpMessage *message = (TpMessage *) b;
 446
 447         if (empathy_message_get_tp_message (msg) == message)
 448                 return 0;
 449
 450         return -1;
 451 }
 452
 453 static void
 454 pending_message_removed_cb (TpTextChannel   *channel,
 455                             TpMessage *message,
 456                             EmpathyTpChat *self)
 457 {
 458         GList *m;
 459
 460         m = g_queue_find_custom (self->priv->pending_messages_queue, message,
 461                                  find_pending_message_func);
 462
 463         if (m == NULL)
 464                 return;
 465
 466         g_signal_emit (self, signals[MESSAGE_ACKNOWLEDGED], 0, m->data);
 467
 468         g_object_unref (m->data);
 469         g_queue_delete_link (self->priv->pending_messages_queue, m);
 470 }
 471
 472 static void
 473 message_sent_cb (TpTextChannel   *channel,
 474                  TpMessage *message,
 475                  TpMessageSendingFlags flags,
 476                  gchar              *token,
 477                  EmpathyTpChat      *self)
 478 {
 479         gchar *message_body;
 480
 481         message_body = tp_message_to_text (message, NULL);
 482
 483         DEBUG ("Message sent: %s", message_body);
 484
 485         tp_chat_build_message (self, message, FALSE);
 486
 487         g_free (message_body);
 488 }
 489
 490 static TpChannelTextSendError
 491 error_to_text_send_error (GError *error)
 492 {
 493         if (error->domain != TP_ERRORS)
 494                 return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 495
 496         switch (error->code) {
 497                 case TP_ERROR_OFFLINE:
 498                         return TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE;
 499                 case TP_ERROR_INVALID_HANDLE:
 500                         return TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT;
 501                 case TP_ERROR_PERMISSION_DENIED:
 502                         return TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED;
 503                 case TP_ERROR_NOT_IMPLEMENTED:
 504                         return TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED;
 505         }
 506
 507         return TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN;
 508 }
 509
 510 static void
 511 message_send_cb (GObject *source,
 512                  GAsyncResult *result,
 513                  gpointer      user_data)
 514 {
 515         EmpathyTpChat *self = user_data;
 516         TpTextChannel *channel = (TpTextChannel *) source;
 517         gchar *token = NULL;
 518         GError *error = NULL;
 519
 520         if (!tp_text_channel_send_message_finish (channel, result, &token, &error)) {
 521                 DEBUG ("Error: %s", error->message);
 522
 523                 /* FIXME: we should use the body of the message as first argument of the
 524                  * signal but can't easily get it as we just get a user_data pointer. Once
 525                  * we'll have rebased EmpathyTpChat on top of TpTextChannel we'll be able
 526                  * to use the user_data pointer to pass the message and fix this. */
 527                 g_signal_emit (self, signals[SEND_ERROR], 0,
 528                                NULL, error_to_text_send_error (error), NULL);
 529
 530                 g_error_free (error);
 531         }
 532
 533         tp_chat_set_delivery_status (self, token,
 534                 EMPATHY_DELIVERY_STATUS_SENDING);
 535         g_free (token);
 536 }
 537
 538 typedef struct {
 539         EmpathyTpChat *chat;
 540         TpChannelChatState state;
 541 } StateChangedData;
 542
 543 static void
 544 tp_chat_state_changed_got_contact_cb (TpConnection            *connection,
 545                                       EmpathyContact          *contact,
 546                                       const GError            *error,
 547                                       gpointer                 user_data,
 548                                       GObject                 *chat)
 549 {
 550         TpChannelChatState state;
 551
 552         if (error) {
 553                 DEBUG ("Error: %s", error->message);
 554                 return;
 555         }
 556
 557         state = GPOINTER_TO_UINT (user_data);
 558         DEBUG ("Chat state changed for %s (%d): %d",
 559                 empathy_contact_get_alias (contact),
 560                 empathy_contact_get_handle (contact), state);
 561
 562         g_signal_emit (chat, signals[CHAT_STATE_CHANGED], 0, contact, state);
 563 }
 564
 565 static void
 566 tp_chat_state_changed_cb (TpChannel *channel,
 567                           TpHandle   handle,
 568                           TpChannelChatState state,
 569                           EmpathyTpChat *self)
 570 {
 571         TpConnection *connection = tp_channel_borrow_connection (
 572                 (TpChannel *) self);
 573
 574         empathy_tp_contact_factory_get_from_handle (connection, handle,
 575                 tp_chat_state_changed_got_contact_cb, GUINT_TO_POINTER (state),
 576                 NULL, G_OBJECT (self));
 577 }
 578
 579 static void
 580 list_pending_messages (EmpathyTpChat *self)
 581 {
 582         GList *messages, *l;
 583
 584         messages = tp_text_channel_get_pending_messages (
 585                 TP_TEXT_CHANNEL (self));
 586
 587         for (l = messages; l != NULL; l = g_list_next (l)) {
 588                 TpMessage *message = l->data;
 589
 590                 handle_incoming_message (self, message, FALSE);
 591         }
 592
 593         g_list_free (messages);
 594 }
 595
 596 static void
 597 update_subject (EmpathyTpChat *self,
 598                 GHashTable *properties)
 599 {
 600         EmpathyTpChatPrivate *priv = self->priv;
 601         gboolean can_set, valid;
 602         const gchar *subject;
 603
 604         can_set = tp_asv_get_boolean (properties, "CanSet", &valid);
 605         if (valid) {
 606                 priv->can_set_subject = can_set;
 607         }
 608
 609         subject = tp_asv_get_string (properties, "Subject");
 610         if (subject != NULL) {
 611                 g_free (priv->subject);
 612                 priv->subject = g_strdup (subject);
 613                 g_object_notify (G_OBJECT (self), "subject");
 614         }
 615
 616         /* TODO: track Actor and Timestamp. */
 617 }
 618
 619 static void
 620 tp_chat_get_all_subject_cb (TpProxy      *proxy,
 621                             GHashTable   *properties,
 622                             const GError *error,
 623                             gpointer      user_data G_GNUC_UNUSED,
 624                             GObject      *chat)
 625 {
 626         EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 627         EmpathyTpChatPrivate *priv = self->priv;
 628
 629         if (error) {
 630                 DEBUG ("Error fetching subject: %s", error->message);
 631                 return;
 632         }
 633
 634         priv->supports_subject = TRUE;
 635         update_subject (self, properties);
 636 }
 637
 638 static void
 639 update_title (EmpathyTpChat *self,
 640               GHashTable *properties)
 641 {
 642         EmpathyTpChatPrivate *priv = self->priv;
 643         const gchar *title = tp_asv_get_string (properties, "Title");
 644
 645         if (title != NULL) {
 646                 if (tp_str_empty (title)) {
 647                         title = NULL;
 648                 }
 649
 650                 g_free (priv->title);
 651                 priv->title = g_strdup (title);
 652                 g_object_notify (G_OBJECT (self), "title");
 653         }
 654 }
 655
 656 static void
 657 tp_chat_get_all_room_config_cb (TpProxy      *proxy,
 658                                 GHashTable   *properties,
 659                                 const GError *error,
 660                                 gpointer      user_data G_GNUC_UNUSED,
 661                                 GObject      *chat)
 662 {
 663         EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 664
 665         if (error) {
 666                 DEBUG ("Error fetching room config: %s", error->message);
 667                 return;
 668         }
 669
 670         update_title (self, properties);
 671 }
 672
 673 static void
 674 tp_chat_dbus_properties_changed_cb (TpProxy *proxy,
 675                                     const gchar *interface_name,
 676                                     GHashTable *changed,
 677                                     const gchar **invalidated,
 678                                     gpointer user_data,
 679                                     GObject *chat)
 680 {
 681         EmpathyTpChat *self = EMPATHY_TP_CHAT (chat);
 682
 683         if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_SUBJECT)) {
 684                 update_subject (self, changed);
 685         }
 686
 687         if (!tp_strdiff (interface_name, TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG)) {
 688                 update_title (self, changed);
 689         }
 690 }
 691
 692 void
 693 empathy_tp_chat_set_subject (EmpathyTpChat *self,
 694                              const gchar   *subject)
 695 {
 696         tp_cli_channel_interface_subject_call_set_subject (TP_CHANNEL (self), -1,
 697                                                            subject,
 698                                                            tp_chat_async_cb,
 699                                                            "while setting subject", NULL,
 700                                                            G_OBJECT (self));
 701 }
 702
 703 const gchar *
 704 empathy_tp_chat_get_title (EmpathyTpChat *self)
 705 {
 706         EmpathyTpChatPrivate *priv = self->priv;
 707
 708         return priv->title;
 709 }
 710
 711 gboolean
 712 empathy_tp_chat_supports_subject (EmpathyTpChat *self)
 713 {
 714         EmpathyTpChatPrivate *priv = self->priv;
 715
 716         return priv->supports_subject;
 717 }
 718
 719 gboolean
 720 empathy_tp_chat_can_set_subject (EmpathyTpChat *self)
 721 {
 722         EmpathyTpChatPrivate *priv = self->priv;
 723
 724         return priv->can_set_subject;
 725 }
 726
 727 const gchar *
 728 empathy_tp_chat_get_subject (EmpathyTpChat *self)
 729 {
 730         EmpathyTpChatPrivate *priv = self->priv;
 731
 732         return priv->subject;
 733 }
 734
 735 static void
 736 tp_chat_dispose (GObject *object)
 737 {
 738         EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
 739
 740         tp_clear_object (&self->priv->account);
 741         tp_clear_object (&self->priv->remote_contact);
 742         tp_clear_object (&self->priv->user);
 743
 744         g_queue_foreach (self->priv->messages_queue, (GFunc) g_object_unref, NULL);
 745         g_queue_clear (self->priv->messages_queue);
 746
 747         g_queue_foreach (self->priv->pending_messages_queue,
 748                 (GFunc) g_object_unref, NULL);
 749         g_queue_clear (self->priv->pending_messages_queue);
 750
 751         tp_clear_object (&self->priv->ready_result);
 752
 753         if (G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose)
 754                 G_OBJECT_CLASS (empathy_tp_chat_parent_class)->dispose (object);
 755 }
 756
 757 static void
 758 tp_chat_finalize (GObject *object)
 759 {
 760         EmpathyTpChat *self = (EmpathyTpChat *) object;
 761
 762         DEBUG ("Finalize: %p", object);
 763
 764         g_queue_free (self->priv->messages_queue);
 765         g_queue_free (self->priv->pending_messages_queue);
 766         g_hash_table_unref (self->priv->messages_being_sent);
 767
 768         g_free (self->priv->title);
 769         g_free (self->priv->subject);
 770
 771         G_OBJECT_CLASS (empathy_tp_chat_parent_class)->finalize (object);
 772 }
 773
 774 static void
 775 check_almost_ready (EmpathyTpChat *self)
 776 {
 777         TpChannel *channel = (TpChannel *) self;
 778
 779         if (self->priv->ready_result == NULL)
 780                 return;
 781
 782         if (self->priv->user == NULL)
 783                 return;
 784
 785         /* We need either the members (room) or the remote contact (private chat).
 786          * If the chat is protected by a password we can't get these information so
 787          * consider the chat as ready so it can be presented to the user. */
 788         if (!tp_channel_password_needed (channel) && self->priv->members == NULL &&
 789             self->priv->remote_contact == NULL)
 790                 return;
 791
 792         g_assert (tp_proxy_is_prepared (self,
 793                 TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES));
 794
 795         tp_g_signal_connect_object (self, "message-received",
 796                 G_CALLBACK (message_received_cb), self, 0);
 797         tp_g_signal_connect_object (self, "pending-message-removed",
 798                 G_CALLBACK (pending_message_removed_cb), self, 0);
 799
 800         list_pending_messages (self);
 801
 802         tp_g_signal_connect_object (self, "message-sent",
 803                 G_CALLBACK (message_sent_cb), self, 0);
 804
 805         tp_g_signal_connect_object (self, "chat-state-changed",
 806                 G_CALLBACK (tp_chat_state_changed_cb), self, 0);
 807
 808         check_ready (self);
 809 }
 810
 811 static void
 812 tp_chat_got_added_contacts_cb (TpConnection            *connection,
 813                                guint                    n_contacts,
 814                                EmpathyContact * const * contacts,
 815                                guint                    n_failed,
 816                                const TpHandle          *failed,
 817                                const GError            *error,
 818                                gpointer                 user_data,
 819                                GObject                 *chat)
 820 {
 821         EmpathyTpChat *self = (EmpathyTpChat *) chat;
 822         guint i;
 823         const TpIntSet *members;
 824         TpHandle handle;
 825         EmpathyContact *contact;
 826
 827         if (error) {
 828                 DEBUG ("Error: %s", error->message);
 829                 return;
 830         }
 831
 832         members = tp_channel_group_get_members ((TpChannel *) self);
 833         for (i = 0; i < n_contacts; i++) {
 834                 contact = contacts[i];
 835                 handle = empathy_contact_get_handle (contact);
 836
 837                 /* Make sure the contact is still member */
 838                 if (tp_intset_is_member (members, handle)) {
 839                         self->priv->members = g_list_prepend (self->priv->members,
 840                                 g_object_ref (contact));
 841                         g_signal_emit_by_name (chat, "members-changed",
 842                                                contact, NULL, 0, NULL, TRUE);
 843                 }
 844         }
 845
 846         check_almost_ready (EMPATHY_TP_CHAT (chat));
 847 }
 848
 849 static EmpathyContact *
 850 chat_lookup_contact (EmpathyTpChat *self,
 851                      TpHandle       handle,
 852                      gboolean       remove_)
 853 {
 854         GList *l;
 855
 856         for (l = self->priv->members; l; l = l->next) {
 857                 EmpathyContact *c = l->data;
 858
 859                 if (empathy_contact_get_handle (c) != handle) {
 860                         continue;
 861                 }
 862
 863                 if (remove_) {
 864                         /* Caller takes the reference. */
 865                         self->priv->members = g_list_delete_link (self->priv->members, l);
 866                 } else {
 867                         g_object_ref (c);
 868                 }
 869
 870                 return c;
 871         }
 872
 873         return NULL;
 874 }
 875
 876 typedef struct
 877 {
 878     TpHandle old_handle;
 879     guint reason;
 880     gchar *message;
 881 } ContactRenameData;
 882
 883 static ContactRenameData *
 884 contact_rename_data_new (TpHandle handle,
 885                          guint reason,
 886                          const gchar* message)
 887 {
 888         ContactRenameData *data = g_new (ContactRenameData, 1);
 889         data->old_handle = handle;
 890         data->reason = reason;
 891         data->message = g_strdup (message);
 892
 893         return data;
 894 }
 895
 896 static void
 897 contact_rename_data_free (ContactRenameData* data)
 898 {
 899         g_free (data->message);
 900         g_free (data);
 901 }
 902
 903 static void
 904 tp_chat_got_renamed_contacts_cb (TpConnection            *connection,
 905                                  guint                    n_contacts,
 906                                  EmpathyContact * const * contacts,
 907                                  guint                    n_failed,
 908                                  const TpHandle          *failed,
 909                                  const GError            *error,
 910                                  gpointer                 user_data,
 911                                  GObject                 *chat)
 912 {
 913         EmpathyTpChat *self = (EmpathyTpChat *) chat;
 914         const TpIntSet *members;
 915         TpHandle handle;
 916         EmpathyContact *old = NULL, *new = NULL;
 917         ContactRenameData *rename_data = (ContactRenameData *) user_data;
 918
 919         if (error) {
 920                 DEBUG ("Error: %s", error->message);
 921                 return;
 922         }
 923
 924         /* renamed members can only be delivered one at a time */
 925         g_warn_if_fail (n_contacts == 1);
 926
 927         new = contacts[0];
 928
 929         members = tp_channel_group_get_members ((TpChannel *) self);
 930         handle = empathy_contact_get_handle (new);
 931
 932         old = chat_lookup_contact (self, rename_data->old_handle, TRUE);
 933
 934         /* Make sure the contact is still member */
 935         if (tp_intset_is_member (members, handle)) {
 936                 self->priv->members = g_list_prepend (self->priv->members,
 937                         g_object_ref (new));
 938
 939                 if (old != NULL) {
 940                         g_signal_emit_by_name (self, "member-renamed",
 941                                                old, new, rename_data->reason,
 942                                                rename_data->message);
 943                         g_object_unref (old);
 944                 }
 945         }
 946
 947         if (self->priv->user == old) {
 948                 /* We change our nick */
 949                 tp_clear_object (&self->priv->user);
 950                 self->priv->user = g_object_ref (new);
 951         }
 952
 953         check_almost_ready (self);
 954 }
 955
 956
 957 static void
 958 tp_chat_group_members_changed_cb (TpChannel     *channel,
 959                                   gchar         *message,
 960                                   GArray        *added,
 961                                   GArray        *removed,
 962                                   GArray        *local_pending,
 963                                   GArray        *remote_pending,
 964                                   guint          actor,
 965                                   guint          reason,
 966                                   EmpathyTpChat *self)
 967 {
 968         EmpathyContact *contact;
 969         EmpathyContact *actor_contact = NULL;
 970         guint i;
 971         ContactRenameData *rename_data;
 972         TpHandle old_handle;
 973         TpConnection *connection = tp_channel_borrow_connection (
 974                 (TpChannel *) self);
 975
 976         /* Contact renamed */
 977         if (reason == TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED) {
 978                 /* there can only be a single 'added' and a single 'removed' handle */
 979                 if (removed->len != 1 || added->len != 1) {
 980                         g_warning ("RENAMED with %u added, %u removed (expected 1, 1)",
 981                                 added->len, removed->len);
 982                         return;
 983                 }
 984
 985                 old_handle = g_array_index (removed, guint, 0);
 986
 987                 rename_data = contact_rename_data_new (old_handle, reason, message);
 988                 empathy_tp_contact_factory_get_from_handles (connection,
 989                         added->len, (TpHandle *) added->data,
 990                         tp_chat_got_renamed_contacts_cb,
 991                         rename_data, (GDestroyNotify) contact_rename_data_free,
 992                         G_OBJECT (self));
 993                 return;
 994         }
 995
 996         if (actor != 0) {
 997                 actor_contact = chat_lookup_contact (self, actor, FALSE);
 998                 if (actor_contact == NULL) {
 999                         /* FIXME: handle this a tad more gracefully: perhaps
1000                          * the actor was a server op. We could use the
1001                          * contact-ids detail of MembersChangedDetailed.
1002                          */
1003                         DEBUG ("actor %u not a channel member", actor);
1004                 }
1005         }
1006
1007         /* Remove contacts that are not members anymore */
1008         for (i = 0; i < removed->len; i++) {
1009                 contact = chat_lookup_contact (self,
1010                         g_array_index (removed, TpHandle, i), TRUE);
1011
1012                 if (contact != NULL) {
1013                         g_signal_emit_by_name (self, "members-changed", contact,
1014                                                actor_contact, reason, message,
1015                                                FALSE);
1016                         g_object_unref (contact);
1017                 }
1018         }
1019
1020         /* Request added contacts */
1021         if (added->len > 0) {
1022                 empathy_tp_contact_factory_get_from_handles (connection,
1023                         added->len, (TpHandle *) added->data,
1024                         tp_chat_got_added_contacts_cb, NULL, NULL,
1025                         G_OBJECT (self));
1026         }
1027
1028         if (actor_contact != NULL) {
1029                 g_object_unref (actor_contact);
1030         }
1031 }
1032
1033 static void
1034 tp_chat_got_remote_contact_cb (TpConnection            *connection,
1035                                EmpathyContact          *contact,
1036                                const GError            *error,
1037                                gpointer                 user_data,
1038                                GObject                 *chat)
1039 {
1040         EmpathyTpChat *self = (EmpathyTpChat *) chat;
1041
1042         if (error) {
1043                 DEBUG ("Error: %s", error->message);
1044                 empathy_tp_chat_leave (self, "");
1045                 return;
1046         }
1047
1048         self->priv->remote_contact = g_object_ref (contact);
1049         g_object_notify (chat, "remote-contact");
1050
1051         check_almost_ready (self);
1052 }
1053
1054 static void
1055 tp_chat_got_self_contact_cb (TpConnection            *connection,
1056                              EmpathyContact          *contact,
1057                              const GError            *error,
1058                              gpointer                 user_data,
1059                              GObject                 *chat)
1060 {
1061         EmpathyTpChat *self = (EmpathyTpChat *) chat;
1062
1063         if (error) {
1064                 DEBUG ("Error: %s", error->message);
1065                 empathy_tp_chat_leave (self, "");
1066                 return;
1067         }
1068
1069         self->priv->user = g_object_ref (contact);
1070         empathy_contact_set_is_user (self->priv->user, TRUE);
1071         check_almost_ready (self);
1072 }
1073
1074 static void
1075 tp_chat_get_property (GObject    *object,
1076                       guint       param_id,
1077                       GValue     *value,
1078                       GParamSpec *pspec)
1079 {
1080         EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
1081
1082         switch (param_id) {
1083         case PROP_ACCOUNT:
1084                 g_value_set_object (value, self->priv->account);
1085                 break;
1086         case PROP_REMOTE_CONTACT:
1087                 g_value_set_object (value, self->priv->remote_contact);
1088                 break;
1089         case PROP_N_MESSAGES_SENDING:
1090                 g_value_set_uint (value,
1091                         g_hash_table_size (self->priv->messages_being_sent));
1092                 break;
1093         case PROP_TITLE:
1094                 g_value_set_string (value,
1095                         empathy_tp_chat_get_title (self));
1096                 break;
1097         case PROP_SUBJECT:
1098                 g_value_set_string (value,
1099                         empathy_tp_chat_get_subject (self));
1100                 break;
1101         default:
1102                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1103                 break;
1104         };
1105 }
1106
1107 static void
1108 tp_chat_set_property (GObject      *object,
1109                       guint         param_id,
1110                       const GValue *value,
1111                       GParamSpec   *pspec)
1112 {
1113         EmpathyTpChat *self = EMPATHY_TP_CHAT (object);
1114
1115         switch (param_id) {
1116         case PROP_ACCOUNT:
1117                 self->priv->account = g_value_dup_object (value);
1118                 break;
1119         default:
1120                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1121                 break;
1122         };
1123 }
1124
1125 enum {
1126         FEAT_READY,
1127         N_FEAT
1128 };
1129
1130 static const TpProxyFeature *
1131 tp_chat_list_features (TpProxyClass *cls G_GNUC_UNUSED)
1132 {
1133         static TpProxyFeature features[N_FEAT + 1] = { { 0 } };
1134   static GQuark need[2] = {0, 0};
1135
1136         if (G_LIKELY (features[0].name != 0))
1137                 return features;
1138
1139         features[FEAT_READY].name = EMPATHY_TP_CHAT_FEATURE_READY;
1140         need[0] = TP_TEXT_CHANNEL_FEATURE_INCOMING_MESSAGES;
1141         features[FEAT_READY].depends_on = need;
1142         features[FEAT_READY].prepare_async =
1143                 tp_chat_prepare_ready_async;
1144
1145         /* assert that the terminator at the end is there */
1146         g_assert (features[N_FEAT].name == 0);
1147
1148         return features;
1149 }
1150
1151 static void
1152 empathy_tp_chat_class_init (EmpathyTpChatClass *klass)
1153 {
1154         GObjectClass *object_class = G_OBJECT_CLASS (klass);
1155         TpProxyClass *proxy_class = TP_PROXY_CLASS (klass);
1156
1157         object_class->dispose = tp_chat_dispose;
1158         object_class->finalize = tp_chat_finalize;
1159         object_class->get_property = tp_chat_get_property;
1160         object_class->set_property = tp_chat_set_property;
1161
1162         proxy_class->list_features = tp_chat_list_features;
1163
1164         g_object_class_install_property (object_class,
1165                                          PROP_ACCOUNT,
1166                                          g_param_spec_object ("account",
1167                                                               "TpAccount",
1168                                                               "the account associated with the chat",
1169                                                               TP_TYPE_ACCOUNT,
1170                                                               G_PARAM_READWRITE |
1171                                                               G_PARAM_CONSTRUCT_ONLY |
1172                                                               G_PARAM_STATIC_STRINGS));
1173
1174         g_object_class_install_property (object_class,
1175                                          PROP_REMOTE_CONTACT,
1176                                          g_param_spec_object ("remote-contact",
1177                                                               "The remote contact",
1178                                                               "The remote contact if there is no group iface on the channel",
1179                                                               EMPATHY_TYPE_CONTACT,
1180                                                               G_PARAM_READABLE));
1181
1182         g_object_class_install_property (object_class,
1183                                          PROP_N_MESSAGES_SENDING,
1184                                          g_param_spec_uint ("n-messages-sending",
1185                                                             "Num Messages Sending",
1186                                                             "The number of messages being sent",
1187                                                             0, G_MAXUINT, 0,
1188                                                             G_PARAM_READABLE));
1189
1190         g_object_class_install_property (object_class,
1191                                          PROP_TITLE,
1192                                          g_param_spec_string ("title",
1193                                                               "Title",
1194                                                               "A human-readable name for the room, if any",
1195                                                               NULL,
1196                                                               G_PARAM_READABLE |
1197                                                               G_PARAM_STATIC_STRINGS));
1198
1199         g_object_class_install_property (object_class,
1200                                          PROP_SUBJECT,
1201                                          g_param_spec_string ("subject",
1202                                                               "Subject",
1203                                                               "The room's current subject, if any",
1204                                                               NULL,
1205                                                               G_PARAM_READABLE |
1206                                                               G_PARAM_STATIC_STRINGS));
1207
1208         /* Signals */
1209         signals[MESSAGE_RECEIVED] =
1210                 g_signal_new ("message-received-empathy",
1211                               G_TYPE_FROM_CLASS (klass),
1212                               G_SIGNAL_RUN_LAST,
1213                               0,
1214                               NULL, NULL,
1215                               g_cclosure_marshal_generic,
1216                               G_TYPE_NONE,
1217                               1, EMPATHY_TYPE_MESSAGE);
1218
1219         signals[SEND_ERROR] =
1220                 g_signal_new ("send-error",
1221                               G_TYPE_FROM_CLASS (klass),
1222                               G_SIGNAL_RUN_LAST,
1223                               0,
1224                               NULL, NULL,
1225                               g_cclosure_marshal_generic,
1226                               G_TYPE_NONE,
1227                               3, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_STRING);
1228
1229         signals[CHAT_STATE_CHANGED] =
1230                 g_signal_new ("chat-state-changed-empathy",
1231                               G_TYPE_FROM_CLASS (klass),
1232                               G_SIGNAL_RUN_LAST,
1233                               0,
1234                               NULL, NULL,
1235                               g_cclosure_marshal_generic,
1236                               G_TYPE_NONE,
1237                               2, EMPATHY_TYPE_CONTACT, G_TYPE_UINT);
1238
1239         signals[MESSAGE_ACKNOWLEDGED] =
1240                 g_signal_new ("message-acknowledged",
1241                               G_TYPE_FROM_CLASS (klass),
1242                               G_SIGNAL_RUN_LAST,
1243                               0,
1244                               NULL, NULL,
1245                               g_cclosure_marshal_generic,
1246                               G_TYPE_NONE,
1247                               1, EMPATHY_TYPE_MESSAGE);
1248
1249         g_type_class_add_private (object_class, sizeof (EmpathyTpChatPrivate));
1250 }
1251
1252 static void
1253 empathy_tp_chat_init (EmpathyTpChat *self)
1254 {
1255         self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
1256                 EMPATHY_TYPE_TP_CHAT, EmpathyTpChatPrivate);
1257
1258         self->priv->messages_queue = g_queue_new ();
1259         self->priv->pending_messages_queue = g_queue_new ();
1260         self->priv->messages_being_sent = g_hash_table_new_full (
1261                 g_str_hash, g_str_equal, g_free, NULL);
1262 }
1263
1264 static void
1265 tp_chat_iface_init (EmpathyContactListIface *iface)
1266 {
1267         iface->add         = tp_chat_add;
1268         iface->remove      = tp_chat_remove;
1269         iface->get_members = tp_chat_get_members;
1270 }
1271
1272 EmpathyTpChat *
1273 empathy_tp_chat_new (
1274                      TpSimpleClientFactory *factory,
1275                      TpAccount *account,
1276                      TpConnection *conn,
1277                      const gchar *object_path,
1278                      const GHashTable *immutable_properties)
1279 {
1280         TpProxy *conn_proxy = (TpProxy *) conn;
1281
1282         g_return_val_if_fail (TP_IS_ACCOUNT (account), NULL);
1283         g_return_val_if_fail (TP_IS_CONNECTION (conn), NULL);
1284         g_return_val_if_fail (immutable_properties != NULL, NULL);
1285
1286         return g_object_new (EMPATHY_TYPE_TP_CHAT,
1287                              "factory", factory,
1288                              "account", account,
1289                              "connection", conn,
1290                              "dbus-daemon", conn_proxy->dbus_daemon,
1291                              "bus-name", conn_proxy->bus_name,
1292                              "object-path", object_path,
1293                              "channel-properties", immutable_properties,
1294                              NULL);
1295 }
1296
1297 const gchar *
1298 empathy_tp_chat_get_id (EmpathyTpChat *self)
1299 {
1300         const gchar *id;
1301
1302         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1303
1304         id = tp_channel_get_identifier ((TpChannel *) self);
1305         if (!EMP_STR_EMPTY (id))
1306                 return id;
1307         else if (self->priv->remote_contact)
1308                 return empathy_contact_get_id (self->priv->remote_contact);
1309         else
1310                 return NULL;
1311
1312 }
1313
1314 EmpathyContact *
1315 empathy_tp_chat_get_remote_contact (EmpathyTpChat *self)
1316 {
1317         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1318
1319         return self->priv->remote_contact;
1320 }
1321
1322 TpAccount *
1323 empathy_tp_chat_get_account (EmpathyTpChat *self)
1324 {
1325         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1326
1327         return self->priv->account;
1328 }
1329
1330 void
1331 empathy_tp_chat_send (EmpathyTpChat *self,
1332                       TpMessage *message)
1333 {
1334         gchar *message_body;
1335
1336         g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1337         g_return_if_fail (TP_IS_CLIENT_MESSAGE (message));
1338
1339         message_body = tp_message_to_text (message, NULL);
1340
1341         DEBUG ("Sending message: %s", message_body);
1342
1343         tp_text_channel_send_message_async (TP_TEXT_CHANNEL (self),
1344                 message, TP_MESSAGE_SENDING_FLAG_REPORT_DELIVERY,
1345                 message_send_cb, self);
1346
1347         g_free (message_body);
1348 }
1349
1350 const GList *
1351 empathy_tp_chat_get_pending_messages (EmpathyTpChat *self)
1352 {
1353         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1354
1355         return self->priv->pending_messages_queue->head;
1356 }
1357
1358 void
1359 empathy_tp_chat_acknowledge_message (EmpathyTpChat *self,
1360                                      EmpathyMessage *message) {
1361         TpMessage *tp_msg;
1362
1363         g_return_if_fail (EMPATHY_IS_TP_CHAT (self));
1364
1365         if (!empathy_message_is_incoming (message))
1366                 return;
1367
1368         tp_msg = empathy_message_get_tp_message (message);
1369         tp_text_channel_ack_message_async (TP_TEXT_CHANNEL (self),
1370                                            tp_msg, NULL, NULL);
1371 }
1372
1373 /**
1374  * empathy_tp_chat_can_add_contact:
1375  *
1376  * Returns: %TRUE if empathy_contact_list_add() will work for this channel.
1377  * That is if this chat is a 1-to-1 channel that can be upgraded to
1378  * a MUC using the Conference interface or if the channel is a MUC.
1379  */
1380 gboolean
1381 empathy_tp_chat_can_add_contact (EmpathyTpChat *self)
1382 {
1383         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), FALSE);
1384
1385         return self->priv->can_upgrade_to_muc ||
1386                 tp_proxy_has_interface_by_id (self,
1387                         TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);;
1388 }
1389
1390 static void
1391 tp_channel_leave_async_cb (GObject *source_object,
1392         GAsyncResult *res,
1393         gpointer user_data)
1394 {
1395         GError *error = NULL;
1396
1397         if (!tp_channel_leave_finish (TP_CHANNEL (source_object), res, &error)) {
1398                 DEBUG ("Could not leave channel properly: (%s); closing the channel",
1399                         error->message);
1400                 g_error_free (error);
1401         }
1402 }
1403
1404 void
1405 empathy_tp_chat_leave (EmpathyTpChat *self,
1406                 const gchar *message)
1407 {
1408         TpChannel *channel = (TpChannel *) self;
1409
1410         DEBUG ("Leaving channel %s with message \"%s\"",
1411                 tp_channel_get_identifier (channel), message);
1412
1413         tp_channel_leave_async (channel, TP_CHANNEL_GROUP_CHANGE_REASON_NONE,
1414                 message, tp_channel_leave_async_cb, self);
1415 }
1416
1417 static void
1418 add_members_cb (TpChannel *proxy,
1419                 const GError *error,
1420                 gpointer user_data,
1421                 GObject *weak_object)
1422 {
1423         EmpathyTpChat *self = (EmpathyTpChat *) weak_object;
1424
1425         if (error != NULL) {
1426                 DEBUG ("Failed to join chat (%s): %s",
1427                         tp_channel_get_identifier ((TpChannel *) self), error->message);
1428         }
1429 }
1430
1431 void
1432 empathy_tp_chat_join (EmpathyTpChat *self)
1433 {
1434         TpHandle self_handle;
1435         GArray *members;
1436
1437         self_handle = tp_channel_group_get_self_handle ((TpChannel *) self);
1438
1439         members = g_array_sized_new (FALSE, FALSE, sizeof (TpHandle), 1);
1440         g_array_append_val (members, self_handle);
1441
1442         tp_cli_channel_interface_group_call_add_members ((TpChannel *) self, -1, members,
1443                 "", add_members_cb, NULL, NULL, G_OBJECT (self));
1444
1445         g_array_unref (members);
1446 }
1447
1448 gboolean
1449 empathy_tp_chat_is_invited (EmpathyTpChat *self,
1450                             TpHandle *inviter)
1451 {
1452         TpHandle self_handle;
1453
1454         if (!tp_proxy_has_interface (self, TP_IFACE_CHANNEL_INTERFACE_GROUP))
1455                 return FALSE;
1456
1457         self_handle = tp_channel_group_get_self_handle ((TpChannel *) self);
1458         if (self_handle == 0)
1459                 return FALSE;
1460
1461         return tp_channel_group_get_local_pending_info ((TpChannel *) self, self_handle,
1462                 inviter, NULL, NULL);
1463 }
1464
1465 TpChannelChatState
1466 empathy_tp_chat_get_chat_state (EmpathyTpChat *self,
1467                             EmpathyContact *contact)
1468 {
1469         return tp_channel_get_chat_state ((TpChannel *) self,
1470                 empathy_contact_get_handle (contact));
1471 }
1472
1473 EmpathyContact *
1474 empathy_tp_chat_get_self_contact (EmpathyTpChat *self)
1475 {
1476         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (self), NULL);
1477
1478         return self->priv->user;
1479 }
1480
1481 GQuark
1482 empathy_tp_chat_get_feature_ready (void)
1483 {
1484         return g_quark_from_static_string ("empathy-tp-chat-feature-ready");
1485 }
1486
1487 static void
1488 tp_chat_prepare_ready_async (TpProxy *proxy,
1489         const TpProxyFeature *feature,
1490         GAsyncReadyCallback callback,
1491         gpointer user_data)
1492 {
1493         EmpathyTpChat *self = (EmpathyTpChat *) proxy;
1494         TpChannel *channel = (TpChannel *) proxy;
1495         TpConnection *connection;
1496         gboolean listen_for_dbus_properties_changed = FALSE;
1497
1498         g_assert (self->priv->ready_result == NULL);
1499         self->priv->ready_result = g_simple_async_result_new (G_OBJECT (self),
1500                 callback, user_data, tp_chat_prepare_ready_async);
1501
1502         connection = tp_channel_borrow_connection (channel);
1503
1504         if (tp_proxy_has_interface_by_id (self,
1505                                           TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP)) {
1506                 const TpIntSet *members;
1507                 GArray *handles;
1508                 TpHandle handle;
1509
1510                 /* Get self contact from the group's self handle */
1511                 handle = tp_channel_group_get_self_handle (channel);
1512                 empathy_tp_contact_factory_get_from_handle (connection,
1513                         handle, tp_chat_got_self_contact_cb,
1514                         NULL, NULL, G_OBJECT (self));
1515
1516                 /* Get initial member contacts */
1517                 members = tp_channel_group_get_members (channel);
1518                 handles = tp_intset_to_array (members);
1519                 empathy_tp_contact_factory_get_from_handles (connection,
1520                         handles->len, (TpHandle *) handles->data,
1521                         tp_chat_got_added_contacts_cb, NULL, NULL, G_OBJECT (self));
1522
1523                 self->priv->can_upgrade_to_muc = FALSE;
1524
1525                 tp_g_signal_connect_object (self, "group-members-changed",
1526                         G_CALLBACK (tp_chat_group_members_changed_cb), self, 0);
1527         } else {
1528                 TpCapabilities *caps;
1529                 GPtrArray *classes;
1530                 guint i;
1531                 TpHandle handle;
1532
1533                 /* Get the self contact from the connection's self handle */
1534                 handle = tp_connection_get_self_handle (connection);
1535                 empathy_tp_contact_factory_get_from_handle (connection,
1536                         handle, tp_chat_got_self_contact_cb,
1537                         NULL, NULL, G_OBJECT (self));
1538
1539                 /* Get the remote contact */
1540                 handle = tp_channel_get_handle (channel, NULL);
1541                 empathy_tp_contact_factory_get_from_handle (connection,
1542                         handle, tp_chat_got_remote_contact_cb,
1543                         NULL, NULL, G_OBJECT (self));
1544
1545                 caps = tp_connection_get_capabilities (connection);
1546                 g_assert (caps != NULL);
1547
1548                 classes = tp_capabilities_get_channel_classes (caps);
1549
1550                 for (i = 0; i < classes->len; i++) {
1551                         GValueArray *array = g_ptr_array_index (classes, i);
1552                         const char **oprops = g_value_get_boxed (
1553                                 g_value_array_get_nth (array, 1));
1554
1555                         if (tp_strv_contains (oprops, TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS)) {
1556                                 self->priv->can_upgrade_to_muc = TRUE;
1557                                 break;
1558                         }
1559                 }
1560         }
1561
1562         if (tp_proxy_has_interface_by_id (self,
1563                                           TP_IFACE_QUARK_CHANNEL_INTERFACE_SUBJECT)) {
1564                 tp_cli_dbus_properties_call_get_all (channel, -1,
1565                                                      TP_IFACE_CHANNEL_INTERFACE_SUBJECT,
1566                                                      tp_chat_get_all_subject_cb,
1567                                                      NULL, NULL,
1568                                                      G_OBJECT (self));
1569                 listen_for_dbus_properties_changed = TRUE;
1570         }
1571
1572         if (tp_proxy_has_interface_by_id (self,
1573                                           TP_IFACE_QUARK_CHANNEL_INTERFACE_ROOM_CONFIG)) {
1574                 tp_cli_dbus_properties_call_get_all (channel, -1,
1575                                                      TP_IFACE_CHANNEL_INTERFACE_ROOM_CONFIG,
1576                                                      tp_chat_get_all_room_config_cb,
1577                                                      NULL, NULL,
1578                                                      G_OBJECT (self));
1579                 listen_for_dbus_properties_changed = TRUE;
1580         }
1581
1582         if (listen_for_dbus_properties_changed) {
1583                 tp_cli_dbus_properties_connect_to_properties_changed (channel,
1584                                                                       tp_chat_dbus_properties_changed_cb,
1585                                                                       NULL, NULL,
1586                                                                       G_OBJECT (self), NULL);
1587         }
1588 }