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/channel.h>
  27 #include <telepathy-glib/dbus.h>
  28
  29 #include "empathy-tp-chat.h"
  30 #include "empathy-contact-factory.h"
  31 #include "empathy-marshal.h"
  32 #include "empathy-debug.h"
  33 #include "empathy-time.h"
  34 #include "empathy-utils.h"
  35
  36 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
  37                        EMPATHY_TYPE_TP_CHAT, EmpathyTpChatPriv))
  38
  39 #define DEBUG_DOMAIN "TpChat"
  40
  41 struct _EmpathyTpChatPriv {
  42         EmpathyContactFactory *factory;
  43         EmpathyContact        *user;
  44         McAccount             *account;
  45         TpChannel             *channel;
  46         gchar                 *id;
  47         MissionControl        *mc;
  48         gboolean               acknowledge;
  49         TpChan                *tp_chan;
  50         gboolean               had_pending_messages;
  51         GSList                *message_queue;
  52 };
  53
  54 static void empathy_tp_chat_class_init (EmpathyTpChatClass *klass);
  55 static void empathy_tp_chat_init       (EmpathyTpChat      *chat);
  56
  57 enum {
  58         PROP_0,
  59         PROP_ACCOUNT,
  60         PROP_CHANNEL,
  61         PROP_ACKNOWLEDGE,
  62 };
  63
  64 enum {
  65         MESSAGE_RECEIVED,
  66         SEND_ERROR,
  67         CHAT_STATE_CHANGED,
  68         DESTROY,
  69         LAST_SIGNAL
  70 };
  71
  72 static guint signals[LAST_SIGNAL];
  73
  74 G_DEFINE_TYPE (EmpathyTpChat, empathy_tp_chat, G_TYPE_OBJECT);
  75
  76 static void
  77 tp_chat_invalidated_cb (TpProxy       *proxy,
  78                         guint          domain,
  79                         gint           code,
  80                         gchar         *message,
  81                         EmpathyTpChat *chat)
  82 {
  83         EmpathyTpChatPriv *priv = GET_PRIV (chat);
  84
  85         empathy_debug (DEBUG_DOMAIN, "Channel invalidated: %s", message);
  86
  87         g_object_unref (priv->channel);
  88         g_object_unref (priv->tp_chan);
  89         priv->channel = NULL;
  90         priv->tp_chan = NULL;
  91
  92         g_signal_emit (chat, signals[DESTROY], 0);
  93 }
  94
  95 static void
  96 tp_chat_async_cb (TpChannel *proxy,
  97                   const GError *error,
  98                   gpointer user_data,
  99                   GObject *weak_object)
 100 {
 101         if (error) {
 102                 empathy_debug (DEBUG_DOMAIN, "Error %s: %s",
 103                                user_data, error->message);
 104         }
 105 }
 106
 107 static EmpathyMessage *
 108 tp_chat_build_message (EmpathyTpChat *chat,
 109                        guint          type,
 110                        guint          timestamp,
 111                        guint          from_handle,
 112                        const gchar   *message_body)
 113 {
 114         EmpathyTpChatPriv *priv;
 115         EmpathyMessage    *message;
 116         EmpathyContact    *sender;
 117
 118         priv = GET_PRIV (chat);
 119
 120         if (from_handle == 0) {
 121                 sender = g_object_ref (priv->user);
 122         } else {
 123                 sender = empathy_contact_factory_get_from_handle (priv->factory,
 124                                                                   priv->account,
 125                                                                   from_handle);
 126         }
 127
 128         message = empathy_message_new (message_body);
 129         empathy_message_set_type (message, type);
 130         empathy_message_set_sender (message, sender);
 131         empathy_message_set_receiver (message, priv->user);
 132         empathy_message_set_timestamp (message, timestamp);
 133
 134         g_object_unref (sender);
 135
 136         return message;
 137 }
 138
 139 static void
 140 tp_chat_sender_ready_notify_cb (EmpathyContact *contact,
 141                                 GParamSpec     *param_spec,
 142                                 EmpathyTpChat  *chat)
 143 {
 144         EmpathyTpChatPriv   *priv = GET_PRIV (chat);
 145         EmpathyMessage      *message;
 146         EmpathyContactReady  ready;
 147         EmpathyContact      *sender;
 148         gboolean             removed = FALSE;
 149
 150         /* Emit all messages queued until we find a message with not
 151          * ready sender. When leaving this loop, sender is the first not ready
 152          * contact queued and removed tells if at least one message got removed
 153          * from the queue. */
 154         while (priv->message_queue) {
 155                 message = priv->message_queue->data;
 156                 sender = empathy_message_get_sender (message);
 157                 ready = empathy_contact_get_ready (sender);
 158
 159                 if (!(ready & EMPATHY_CONTACT_READY_NAME)) {
 160                         break;
 161                 }
 162
 163                 empathy_debug (DEBUG_DOMAIN, "Queued message ready");
 164                 g_signal_emit (chat, signals[MESSAGE_RECEIVED], 0, message);
 165                 priv->message_queue = g_slist_remove (priv->message_queue,
 166                                                       message);
 167                 g_object_unref (message);
 168                 removed = TRUE;
 169         }
 170
 171         if (removed) {
 172                 g_signal_handlers_disconnect_by_func (contact,
 173                                                       tp_chat_sender_ready_notify_cb,
 174                                                       chat);
 175
 176                 if (priv->message_queue) {
 177                         g_signal_connect (sender, "notify::ready",
 178                                           G_CALLBACK (tp_chat_sender_ready_notify_cb),
 179                                           chat);
 180                 }
 181         }
 182 }
 183
 184 static void
 185 tp_chat_emit_or_queue_message (EmpathyTpChat  *chat,
 186                                EmpathyMessage *message)
 187 {
 188         EmpathyTpChatPriv   *priv = GET_PRIV (chat);
 189         EmpathyContact      *sender;
 190         EmpathyContactReady  ready;
 191
 192         if (priv->message_queue != NULL) {
 193                 empathy_debug (DEBUG_DOMAIN, "Message queue not empty");
 194                 priv->message_queue = g_slist_append (priv->message_queue,
 195                                                       g_object_ref (message));
 196                 return;
 197         }
 198
 199         sender = empathy_message_get_sender (message);
 200         ready = empathy_contact_get_ready (sender);
 201         if (ready & EMPATHY_CONTACT_READY_NAME) {
 202                 empathy_debug (DEBUG_DOMAIN, "Message queue empty and sender ready");
 203                 g_signal_emit (chat, signals[MESSAGE_RECEIVED], 0, message);
 204                 return;
 205         }
 206
 207         empathy_debug (DEBUG_DOMAIN, "Sender not ready");
 208         priv->message_queue = g_slist_append (priv->message_queue,
 209                                               g_object_ref (message));
 210         g_signal_connect (sender, "notify::ready",
 211                           G_CALLBACK (tp_chat_sender_ready_notify_cb),
 212                           chat);
 213 }
 214
 215 static void
 216 tp_chat_received_cb (TpChannel   *channel,
 217                      guint        message_id,
 218                      guint        timestamp,
 219                      guint        from_handle,
 220                      guint        message_type,
 221                      guint        message_flags,
 222                      const gchar *message_body,
 223                      gpointer     user_data,
 224                      GObject     *chat)
 225 {
 226         EmpathyTpChatPriv *priv = GET_PRIV (chat);
 227         EmpathyMessage    *message;
 228
 229         if (!priv->had_pending_messages) {
 230                 return;
 231         }
 232
 233         empathy_debug (DEBUG_DOMAIN, "Message received: %s", message_body);
 234
 235         message = tp_chat_build_message (EMPATHY_TP_CHAT (chat),
 236                                          message_type,
 237                                          timestamp,
 238                                          from_handle,
 239                                          message_body);
 240
 241         tp_chat_emit_or_queue_message (EMPATHY_TP_CHAT (chat), message);
 242         g_object_unref (message);
 243
 244         if (priv->acknowledge) {
 245                 GArray *message_ids;
 246
 247                 message_ids = g_array_new (FALSE, FALSE, sizeof (guint));
 248                 g_array_append_val (message_ids, message_id);
 249                 tp_cli_channel_type_text_call_acknowledge_pending_messages (priv->channel,
 250                                                                             -1,
 251                                                                             message_ids,
 252                                                                             tp_chat_async_cb,
 253                                                                             "acknowledging pending messages",
 254                                                                             NULL,
 255                                                                             chat);
 256                 g_array_free (message_ids, TRUE);
 257         }
 258 }
 259
 260 static void
 261 tp_chat_sent_cb (TpChannel   *channel,
 262                  guint        timestamp,
 263                  guint        message_type,
 264                  const gchar *message_body,
 265                  gpointer     user_data,
 266                  GObject     *chat)
 267 {
 268         EmpathyMessage *message;
 269
 270         empathy_debug (DEBUG_DOMAIN, "Message sent: %s", message_body);
 271
 272         message = tp_chat_build_message (EMPATHY_TP_CHAT (chat),
 273                                          message_type,
 274                                          timestamp,
 275                                          0,
 276                                          message_body);
 277
 278         tp_chat_emit_or_queue_message (EMPATHY_TP_CHAT (chat), message);
 279         g_object_unref (message);
 280 }
 281
 282 static void
 283 tp_chat_send_error_cb (TpChannel   *channel,
 284                        guint        error_code,
 285                        guint        timestamp,
 286                        guint        message_type,
 287                        const gchar *message_body,
 288                        gpointer     user_data,
 289                        GObject     *chat)
 290 {
 291         EmpathyMessage *message;
 292
 293         empathy_debug (DEBUG_DOMAIN, "Message sent error: %s (%d)",
 294                        message_body, error_code);
 295
 296         message = tp_chat_build_message (EMPATHY_TP_CHAT (chat),
 297                                          message_type,
 298                                          timestamp,
 299                                          0,
 300                                          message_body);
 301
 302         g_signal_emit (chat, signals[SEND_ERROR], 0, message, error_code);
 303         g_object_unref (message);
 304 }
 305
 306 static void
 307 tp_chat_state_changed_cb (TpChannel *channel,
 308                           guint      handle,
 309                           guint      state,
 310                           gpointer   user_data,
 311                           GObject   *chat)
 312 {
 313         EmpathyTpChatPriv *priv = GET_PRIV (chat);
 314         EmpathyContact    *contact;
 315
 316         contact = empathy_contact_factory_get_from_handle (priv->factory,
 317                                                            priv->account,
 318                                                            handle);
 319
 320         empathy_debug (DEBUG_DOMAIN, "Chat state changed for %s (%d): %d",
 321                       empathy_contact_get_name (contact),
 322                       handle, state);
 323
 324         g_signal_emit (chat, signals[CHAT_STATE_CHANGED], 0, contact, state);
 325         g_object_unref (contact);
 326 }
 327
 328 static void
 329 tp_chat_list_pending_messages_cb (TpChannel       *channel,
 330                                   const GPtrArray *messages_list,
 331                                   const GError    *error,
 332                                   gpointer         user_data,
 333                                   GObject         *chat)
 334 {
 335         EmpathyTpChatPriv *priv = GET_PRIV (chat);
 336         guint              i;
 337
 338         priv->had_pending_messages = TRUE;
 339
 340         for (i = 0; i < messages_list->len; i++) {
 341                 EmpathyMessage *message;
 342                 GValueArray    *message_struct;
 343                 const gchar    *message_body;
 344                 guint           message_id;
 345                 guint           timestamp;
 346                 guint           from_handle;
 347                 guint           message_type;
 348                 guint           message_flags;
 349
 350                 message_struct = g_ptr_array_index (messages_list, i);
 351
 352                 message_id = g_value_get_uint (g_value_array_get_nth (message_struct, 0));
 353                 timestamp = g_value_get_uint (g_value_array_get_nth (message_struct, 1));
 354                 from_handle = g_value_get_uint (g_value_array_get_nth (message_struct, 2));
 355                 message_type = g_value_get_uint (g_value_array_get_nth (message_struct, 3));
 356                 message_flags = g_value_get_uint (g_value_array_get_nth (message_struct, 4));
 357                 message_body = g_value_get_string (g_value_array_get_nth (message_struct, 5));
 358
 359                 empathy_debug (DEBUG_DOMAIN, "Message pending: %s", message_body);
 360
 361                 message = tp_chat_build_message (EMPATHY_TP_CHAT (chat),
 362                                                  message_type,
 363                                                  timestamp,
 364                                                  from_handle,
 365                                                  message_body);
 366
 367                 tp_chat_emit_or_queue_message (EMPATHY_TP_CHAT (chat), message);
 368                 g_object_unref (message);
 369         }
 370 }
 371
 372 static gboolean
 373 tp_chat_channel_ready_cb (EmpathyTpChat *chat)
 374 {
 375         EmpathyTpChatPriv *priv = GET_PRIV (chat);
 376
 377         empathy_debug (DEBUG_DOMAIN, "Channel ready");
 378
 379         tp_cli_channel_type_text_call_list_pending_messages (priv->channel, -1,
 380                                                              priv->acknowledge,
 381                                                              tp_chat_list_pending_messages_cb,
 382                                                              NULL, NULL,
 383                                                              G_OBJECT (chat));
 384
 385         tp_cli_channel_type_text_connect_to_received (priv->channel,
 386                                                       tp_chat_received_cb,
 387                                                       NULL, NULL,
 388                                                       G_OBJECT (chat), NULL);
 389         tp_cli_channel_type_text_connect_to_sent (priv->channel,
 390                                                   tp_chat_sent_cb,
 391                                                   NULL, NULL,
 392                                                   G_OBJECT (chat), NULL);
 393         tp_cli_channel_type_text_connect_to_send_error (priv->channel,
 394                                                         tp_chat_send_error_cb,
 395                                                         NULL, NULL,
 396                                                         G_OBJECT (chat), NULL);
 397         tp_cli_channel_interface_chat_state_connect_to_chat_state_changed (priv->channel,
 398                                                                            tp_chat_state_changed_cb,
 399                                                                            NULL, NULL,
 400                                                                            G_OBJECT (chat), NULL);
 401
 402         return FALSE;
 403 }
 404
 405 static void
 406 tp_chat_finalize (GObject *object)
 407 {
 408         EmpathyTpChatPriv *priv = GET_PRIV (object);
 409
 410         if (priv->acknowledge) {
 411                 empathy_debug (DEBUG_DOMAIN, "Closing channel...");
 412                 tp_cli_channel_call_close (priv->channel, -1,
 413                                            tp_chat_async_cb,
 414                                            "closing channel", NULL,
 415                                            NULL);
 416         }
 417
 418         if (priv->channel) {
 419                 g_signal_handlers_disconnect_by_func (priv->channel,
 420                                                       tp_chat_invalidated_cb,
 421                                                       object);
 422                 g_object_unref (priv->channel);
 423         }
 424         if (priv->tp_chan) {
 425                 g_object_unref (priv->tp_chan);
 426         }
 427
 428         g_object_unref (priv->factory);
 429         g_object_unref (priv->user);
 430         g_object_unref (priv->account);
 431         g_object_unref (priv->mc);
 432         g_free (priv->id);
 433
 434         G_OBJECT_CLASS (empathy_tp_chat_parent_class)->finalize (object);
 435 }
 436
 437 static GObject *
 438 tp_chat_constructor (GType                  type,
 439                      guint                  n_props,
 440                      GObjectConstructParam *props)
 441 {
 442         GObject           *chat;
 443         EmpathyTpChatPriv *priv;
 444         gboolean           channel_ready;
 445
 446         chat = G_OBJECT_CLASS (empathy_tp_chat_parent_class)->constructor (type, n_props, props);
 447
 448         priv = GET_PRIV (chat);
 449         priv->factory = empathy_contact_factory_new ();
 450         priv->user = empathy_contact_factory_get_user (priv->factory, priv->account);
 451         priv->mc = empathy_mission_control_new ();
 452
 453         g_signal_connect (priv->channel, "invalidated",
 454                           G_CALLBACK (tp_chat_invalidated_cb),
 455                           chat);
 456
 457         g_object_get (priv->channel, "channel-ready", &channel_ready, NULL);
 458         if (channel_ready) {
 459                 /* FIXME: We do that in a cb to let time to set the acknowledge
 460                  * property, this property should be required for construct. */
 461                 g_idle_add ((GSourceFunc) tp_chat_channel_ready_cb, chat);
 462         } else {
 463                 g_signal_connect_swapped (priv->channel, "notify::channel-ready",
 464                                           G_CALLBACK (tp_chat_channel_ready_cb),
 465                                           chat);
 466         }
 467
 468         /* FIXME: We do that in a cb to let time to set the acknowledge
 469          * property, this property should be required for construct. */
 470         g_idle_add ((GSourceFunc) empathy_tp_chat_get_pendings, chat);
 471
 472         return chat;
 473 }
 474
 475 static void
 476 tp_chat_get_property (GObject    *object,
 477                       guint       param_id,
 478                       GValue     *value,
 479                       GParamSpec *pspec)
 480 {
 481         EmpathyTpChatPriv *priv = GET_PRIV (object);
 482
 483         switch (param_id) {
 484         case PROP_ACCOUNT:
 485                 g_value_set_object (value, priv->account);
 486                 break;
 487         case PROP_CHANNEL:
 488                 g_value_set_object (value, priv->channel);
 489                 break;
 490         case PROP_ACKNOWLEDGE:
 491                 g_value_set_boolean (value, priv->acknowledge);
 492                 break;
 493         default:
 494                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 495                 break;
 496         };
 497 }
 498
 499 static void
 500 tp_chat_set_property (GObject      *object,
 501                       guint         param_id,
 502                       const GValue *value,
 503                       GParamSpec   *pspec)
 504 {
 505         EmpathyTpChatPriv *priv = GET_PRIV (object);
 506
 507         switch (param_id) {
 508         case PROP_ACCOUNT:
 509                 priv->account = g_object_ref (g_value_get_object (value));
 510                 break;
 511         case PROP_CHANNEL:
 512                 priv->channel = g_object_ref (g_value_get_object (value));
 513                 break;
 514         case PROP_ACKNOWLEDGE:
 515                 empathy_tp_chat_set_acknowledge (EMPATHY_TP_CHAT (object),
 516                                                  g_value_get_boolean (value));
 517                 break;
 518         default:
 519                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 520                 break;
 521         };
 522 }
 523
 524 static void
 525 empathy_tp_chat_class_init (EmpathyTpChatClass *klass)
 526 {
 527         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 528
 529         object_class->finalize = tp_chat_finalize;
 530         object_class->constructor = tp_chat_constructor;
 531         object_class->get_property = tp_chat_get_property;
 532         object_class->set_property = tp_chat_set_property;
 533
 534         /* Construct properties */
 535         g_object_class_install_property (object_class,
 536                                          PROP_ACCOUNT,
 537                                          g_param_spec_object ("account",
 538                                                               "channel Account",
 539                                                               "The account associated with the channel",
 540                                                               MC_TYPE_ACCOUNT,
 541                                                               G_PARAM_READWRITE |
 542                                                               G_PARAM_CONSTRUCT_ONLY));
 543         g_object_class_install_property (object_class,
 544                                          PROP_CHANNEL,
 545                                          g_param_spec_object ("channel",
 546                                                               "telepathy channel",
 547                                                               "The text channel for the chat",
 548                                                               TP_TYPE_CHANNEL,
 549                                                               G_PARAM_READWRITE |
 550                                                               G_PARAM_CONSTRUCT_ONLY));
 551
 552         g_object_class_install_property (object_class,
 553                                          PROP_ACKNOWLEDGE,
 554                                          g_param_spec_boolean ("acknowledge",
 555                                                                "acknowledge messages",
 556                                                                "Wheter or not received messages should be acknowledged",
 557                                                                FALSE,
 558                                                                G_PARAM_READWRITE |
 559                                                                G_PARAM_CONSTRUCT));
 560
 561         /* Signals */
 562         signals[MESSAGE_RECEIVED] =
 563                 g_signal_new ("message-received",
 564                               G_TYPE_FROM_CLASS (klass),
 565                               G_SIGNAL_RUN_LAST,
 566                               0,
 567                               NULL, NULL,
 568                               g_cclosure_marshal_VOID__OBJECT,
 569                               G_TYPE_NONE,
 570                               1, EMPATHY_TYPE_MESSAGE);
 571
 572         signals[SEND_ERROR] =
 573                 g_signal_new ("send-error",
 574                               G_TYPE_FROM_CLASS (klass),
 575                               G_SIGNAL_RUN_LAST,
 576                               0,
 577                               NULL, NULL,
 578                               _empathy_marshal_VOID__OBJECT_UINT,
 579                               G_TYPE_NONE,
 580                               2, EMPATHY_TYPE_MESSAGE, G_TYPE_UINT);
 581
 582         signals[CHAT_STATE_CHANGED] =
 583                 g_signal_new ("chat-state-changed",
 584                               G_TYPE_FROM_CLASS (klass),
 585                               G_SIGNAL_RUN_LAST,
 586                               0,
 587                               NULL, NULL,
 588                               _empathy_marshal_VOID__OBJECT_UINT,
 589                               G_TYPE_NONE,
 590                               2, EMPATHY_TYPE_CONTACT, G_TYPE_UINT);
 591
 592         signals[DESTROY] =
 593                 g_signal_new ("destroy",
 594                               G_TYPE_FROM_CLASS (klass),
 595                               G_SIGNAL_RUN_LAST,
 596                               0,
 597                               NULL, NULL,
 598                               g_cclosure_marshal_VOID__VOID,
 599                               G_TYPE_NONE,
 600                               0);
 601
 602         g_type_class_add_private (object_class, sizeof (EmpathyTpChatPriv));
 603 }
 604
 605 static void
 606 empathy_tp_chat_init (EmpathyTpChat *chat)
 607 {
 608 }
 609
 610 EmpathyTpChat *
 611 empathy_tp_chat_new (McAccount *account,
 612                      TpChan    *tp_chan)
 613 {
 614         EmpathyTpChat     *chat;
 615         EmpathyTpChatPriv *priv;
 616         TpChannel         *channel;
 617         TpConnection      *connection;
 618         MissionControl    *mc;
 619         TpConn            *tp_conn;
 620
 621         mc = empathy_mission_control_new ();
 622         tp_conn = mission_control_get_connection (mc, account, NULL);
 623         connection = tp_conn_dup_connection (tp_conn);
 624         channel = tp_chan_dup_channel (tp_chan, connection, NULL);
 625
 626         chat = g_object_new (EMPATHY_TYPE_TP_CHAT,
 627                              "account", account,
 628                              "channel", channel,
 629                              NULL);
 630
 631         priv = GET_PRIV (chat);
 632         priv->tp_chan = g_object_ref (tp_chan);
 633
 634         g_object_unref (channel);
 635         g_object_unref (tp_conn);
 636         g_object_unref (connection);
 637         g_object_unref (mc);
 638
 639         return chat;
 640 }
 641
 642 EmpathyTpChat *
 643 empathy_tp_chat_new_with_contact (EmpathyContact *contact)
 644 {
 645         EmpathyTpChat  *chat;
 646         MissionControl *mc;
 647         McAccount      *account;
 648         TpConn         *tp_conn;
 649         TpChan         *text_chan;
 650         const gchar    *bus_name;
 651         guint           handle;
 652
 653         g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 654
 655         mc = empathy_mission_control_new ();
 656         account = empathy_contact_get_account (contact);
 657
 658         if (mission_control_get_connection_status (mc, account, NULL) != 0) {
 659                 /* The account is not connected. */
 660                 return NULL;
 661         }
 662
 663         tp_conn = mission_control_get_connection (mc, account, NULL);
 664         g_return_val_if_fail (tp_conn != NULL, NULL);
 665         bus_name = dbus_g_proxy_get_bus_name (DBUS_G_PROXY (tp_conn));
 666         handle = empathy_contact_get_handle (contact);
 667
 668         text_chan = tp_conn_new_channel (tp_get_bus (),
 669                                          tp_conn,
 670                                          bus_name,
 671                                          TP_IFACE_CHANNEL_TYPE_TEXT,
 672                                          TP_HANDLE_TYPE_CONTACT,
 673                                          handle,
 674                                          TRUE);
 675
 676         chat = empathy_tp_chat_new (account, text_chan);
 677
 678         g_object_unref (tp_conn);
 679         g_object_unref (text_chan);
 680         g_object_unref (mc);
 681
 682         return chat;
 683 }
 684
 685 gboolean
 686 empathy_tp_chat_get_acknowledge (EmpathyTpChat *chat)
 687 {
 688         EmpathyTpChatPriv *priv;
 689
 690         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (chat), FALSE);
 691
 692         priv = GET_PRIV (chat);
 693
 694         return priv->acknowledge;
 695 }
 696
 697 void
 698 empathy_tp_chat_set_acknowledge (EmpathyTpChat *chat,
 699                                  gboolean       acknowledge)
 700 {
 701         EmpathyTpChatPriv *priv;
 702
 703         g_return_if_fail (EMPATHY_IS_TP_CHAT (chat));
 704
 705         priv = GET_PRIV (chat);
 706
 707         priv->acknowledge = acknowledge;
 708         g_object_notify (G_OBJECT (chat), "acknowledge");
 709 }
 710
 711 TpChan *
 712 empathy_tp_chat_get_channel (EmpathyTpChat *chat)
 713 {
 714         EmpathyTpChatPriv *priv;
 715
 716         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (chat), NULL);
 717
 718         priv = GET_PRIV (chat);
 719
 720         return priv->tp_chan;
 721 }
 722
 723 McAccount *
 724 empathy_tp_chat_get_account (EmpathyTpChat *chat)
 725 {
 726         EmpathyTpChatPriv *priv;
 727
 728         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (chat), NULL);
 729
 730         priv = GET_PRIV (chat);
 731
 732         return priv->account;
 733 }
 734
 735 void
 736 empathy_tp_chat_send (EmpathyTpChat *chat,
 737                       EmpathyMessage *message)
 738 {
 739         EmpathyTpChatPriv  *priv;
 740         const gchar        *message_body;
 741         EmpathyMessageType  message_type;
 742
 743         g_return_if_fail (EMPATHY_IS_TP_CHAT (chat));
 744         g_return_if_fail (EMPATHY_IS_MESSAGE (message));
 745
 746         priv = GET_PRIV (chat);
 747
 748         message_body = empathy_message_get_body (message);
 749         message_type = empathy_message_get_type (message);
 750
 751         empathy_debug (DEBUG_DOMAIN, "Sending message: %s", message_body);
 752         tp_cli_channel_type_text_call_send (priv->channel, -1,
 753                                             message_type,
 754                                             message_body,
 755                                             tp_chat_async_cb,
 756                                             "sending message", NULL,
 757                                             G_OBJECT (chat));
 758 }
 759
 760 void
 761 empathy_tp_chat_set_state (EmpathyTpChat      *chat,
 762                            TpChannelChatState  state)
 763 {
 764         EmpathyTpChatPriv *priv;
 765
 766         g_return_if_fail (EMPATHY_IS_TP_CHAT (chat));
 767
 768         priv = GET_PRIV (chat);
 769
 770         empathy_debug (DEBUG_DOMAIN, "Set state: %d", state);
 771         tp_cli_channel_interface_chat_state_call_set_chat_state (priv->channel, -1,
 772                                                                  state,
 773                                                                  tp_chat_async_cb,
 774                                                                  "setting chat state",
 775                                                                  NULL,
 776                                                                  G_OBJECT (chat));
 777 }
 778
 779 const gchar *
 780 empathy_tp_chat_get_id (EmpathyTpChat *chat)
 781 {
 782         EmpathyTpChatPriv *priv;
 783
 784         g_return_val_if_fail (EMPATHY_IS_TP_CHAT (chat), NULL);
 785
 786         priv = GET_PRIV (chat);
 787
 788         if (!priv->id) {
 789                 priv->id = empathy_inspect_channel (priv->account, priv->tp_chan);
 790         }
 791
 792         return priv->id;
 793 }
 794