libempathy/empathy-tp-call.c

   1 /*
   2  *  Copyright (C) 2007 Elliot Fairweather
   3  *
   4  *  This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Lesser General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2.1 of the License, or (at your option) any later version.
   8  *
   9  *  This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  Lesser General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU Lesser General Public
  15  *  License along with this library; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  *  Authors: Elliot Fairweather <elliot.fairweather@collabora.co.uk>
  19  */
  20
  21 #include <string.h>
  22 #include <dbus/dbus-glib.h>
  23
  24 #include <libtelepathy/tp-chan-type-streamed-media-gen.h>
  25 #include <libtelepathy/tp-connmgr.h>
  26 #include <telepathy-glib/proxy-subclass.h>
  27 #include <telepathy-glib/dbus.h>
  28
  29 #include <libmissioncontrol/mc-account.h>
  30
  31 #include <extensions/extensions.h>
  32 #include <libempathy/empathy-contact-factory.h>
  33 #include <libempathy/empathy-debug.h>
  34 #include <libempathy/empathy-tp-group.h>
  35 #include <libempathy/empathy-utils.h>
  36
  37 #include "empathy-tp-call.h"
  38
  39 #define DEBUG_DOMAIN "TpCall"
  40
  41 #define GET_PRIV(object) (G_TYPE_INSTANCE_GET_PRIVATE \
  42     ((object), EMPATHY_TYPE_TP_CALL, EmpathyTpCallPriv))
  43
  44 #define STREAM_ENGINE_BUS_NAME "org.freedesktop.Telepathy.StreamEngine"
  45 #define STREAM_ENGINE_OBJECT_PATH "/org/freedesktop/Telepathy/StreamEngine"
  46
  47 typedef struct _EmpathyTpCallPriv EmpathyTpCallPriv;
  48
  49 struct _EmpathyTpCallPriv
  50 {
  51   TpConn *connection;
  52   TpChan *channel;
  53   TpProxy *stream_engine;
  54   TpDBusDaemon *dbus_daemon;
  55   EmpathyTpGroup *group;
  56   EmpathyContact *contact;
  57   gboolean is_incoming;
  58   guint status;
  59   gboolean stream_engine_started;
  60
  61   EmpathyTpCallStream *audio;
  62   EmpathyTpCallStream *video;
  63 };
  64
  65 enum
  66 {
  67   STATUS_CHANGED_SIGNAL,
  68   RECEIVING_VIDEO_SIGNAL,
  69   SENDING_VIDEO_SIGNAL,
  70   LAST_SIGNAL
  71 };
  72
  73 enum
  74 {
  75   PROP_0,
  76   PROP_CONNECTION,
  77   PROP_CHANNEL,
  78   PROP_CONTACT,
  79   PROP_IS_INCOMING,
  80   PROP_STATUS,
  81   PROP_AUDIO_STREAM,
  82   PROP_VIDEO_STREAM
  83 };
  84
  85 static guint signals[LAST_SIGNAL];
  86
  87 G_DEFINE_TYPE (EmpathyTpCall, empathy_tp_call, G_TYPE_OBJECT)
  88
  89 static void
  90 tp_call_stream_state_changed_cb (DBusGProxy *channel,
  91                                  guint stream_id,
  92                                  guint stream_state,
  93                                  EmpathyTpCall *call)
  94 {
  95   EmpathyTpCallPriv *priv = GET_PRIV (call);
  96
  97   empathy_debug (DEBUG_DOMAIN,
  98       "Stream state changed - stream id: %d, state state: %d",
  99       stream_id, stream_state);
 100
 101   if (stream_id == priv->audio->id)
 102     {
 103       priv->audio->state = stream_state;
 104     }
 105   else if (stream_id == priv->video->id)
 106     {
 107       priv->video->state = stream_state;
 108       if (stream_state == TP_MEDIA_STREAM_STATE_CONNECTED)
 109       {
 110         if (priv->video->direction & TP_MEDIA_STREAM_DIRECTION_RECEIVE)
 111           {
 112             empathy_debug (DEBUG_DOMAIN, "RECEIVING");
 113             g_signal_emit (call, signals[RECEIVING_VIDEO_SIGNAL], 0, TRUE);
 114           }
 115         if (priv->video->direction & TP_MEDIA_STREAM_DIRECTION_SEND)
 116           {
 117             empathy_debug (DEBUG_DOMAIN, "SENDING");
 118             g_signal_emit (call, signals[SENDING_VIDEO_SIGNAL], 0, TRUE);
 119           }
 120       }
 121     }
 122
 123   g_signal_emit (call, signals[STATUS_CHANGED_SIGNAL], 0);
 124 }
 125
 126 static void
 127 tp_call_identify_streams (EmpathyTpCall *call)
 128 {
 129   EmpathyTpCallPriv *priv = GET_PRIV (call);
 130   GPtrArray *stream_infos;
 131   DBusGProxy *streamed_iface;
 132   GError *error = NULL;
 133   guint i;
 134
 135   empathy_debug (DEBUG_DOMAIN, "Identifying audio/video streams");
 136
 137   streamed_iface = tp_chan_get_interface (priv->channel,
 138       TELEPATHY_CHAN_IFACE_STREAMED_QUARK);
 139
 140   if (!tp_chan_type_streamed_media_list_streams (streamed_iface, &stream_infos,
 141         &error))
 142     {
 143       empathy_debug (DEBUG_DOMAIN, "Couldn't list audio/video streams: %s",
 144           error->message);
 145       g_clear_error (&error);
 146       return;
 147     }
 148
 149   for (i = 0; i < stream_infos->len; i++)
 150     {
 151       GValueArray *values;
 152       guint stream_id;
 153       guint stream_handle;
 154       guint stream_type;
 155       guint stream_state;
 156       guint stream_direction;
 157
 158       values = g_ptr_array_index (stream_infos, i);
 159       stream_id = g_value_get_uint (g_value_array_get_nth (values, 0));
 160       stream_handle = g_value_get_uint (g_value_array_get_nth (values, 1));
 161       stream_type = g_value_get_uint (g_value_array_get_nth (values, 2));
 162       stream_state = g_value_get_uint (g_value_array_get_nth (values, 3));
 163       stream_direction = g_value_get_uint (g_value_array_get_nth (values, 4));
 164
 165       switch (stream_type)
 166         {
 167         case TP_MEDIA_STREAM_TYPE_AUDIO:
 168           empathy_debug (DEBUG_DOMAIN,
 169               "Audio stream - id: %d, state: %d, direction: %d",
 170               stream_id, stream_state, stream_direction);
 171           priv->audio->exists = TRUE;
 172           priv->audio->id = stream_id;
 173           priv->audio->state = stream_state;
 174           priv->audio->direction = stream_direction;
 175           break;
 176         case TP_MEDIA_STREAM_TYPE_VIDEO:
 177           empathy_debug (DEBUG_DOMAIN,
 178               "Video stream - id: %d, state: %d, direction: %d",
 179               stream_id, stream_state, stream_direction);
 180           priv->video->exists = TRUE;
 181           priv->video->id = stream_id;
 182           priv->video->state = stream_state;
 183           priv->video->direction = stream_direction;
 184           break;
 185         default:
 186           empathy_debug (DEBUG_DOMAIN, "Unknown stream type: %d",
 187               stream_type);
 188         }
 189
 190       g_value_array_free (values);
 191     }
 192 }
 193
 194 static void
 195 tp_call_stream_added_cb (DBusGProxy *channel,
 196                          guint stream_id,
 197                          guint contact_handle,
 198                          guint stream_type,
 199                          EmpathyTpCall *call)
 200 {
 201   empathy_debug (DEBUG_DOMAIN,
 202       "Stream added - stream id: %d, contact handle: %d, stream type: %d",
 203       stream_id, contact_handle, stream_type);
 204
 205   tp_call_identify_streams (call);
 206 }
 207
 208
 209 static void
 210 tp_call_stream_removed_cb (DBusGProxy *channel,
 211                            guint stream_id,
 212                            EmpathyTpCall *call)
 213 {
 214   EmpathyTpCallPriv *priv = GET_PRIV (call);
 215
 216   empathy_debug (DEBUG_DOMAIN, "Stream removed - stream id: %d", stream_id);
 217
 218   if (stream_id == priv->audio->id)
 219     {
 220       priv->audio->exists = FALSE;
 221     }
 222   else if (stream_id == priv->video->id)
 223     {
 224       priv->video->exists = FALSE;
 225     }
 226 }
 227
 228 static void
 229 tp_call_invalidated_cb (TpProxy       *stream_engine,
 230                         GQuark         domain,
 231                         gint           code,
 232                         gchar         *message,
 233                         EmpathyTpCall *call)
 234 {
 235   EmpathyTpCallPriv *priv = GET_PRIV (call);
 236
 237   empathy_debug (DEBUG_DOMAIN, "Stream engine proxy invalidated: %s",
 238       message);
 239   empathy_tp_call_close_channel (call);
 240   g_object_unref (priv->stream_engine);
 241   priv->stream_engine = NULL;
 242 }
 243
 244 static void
 245 tp_call_channel_closed_cb (TpChan *channel,
 246                            EmpathyTpCall *call)
 247 {
 248   EmpathyTpCallPriv *priv = GET_PRIV (call);
 249   DBusGProxy *streamed_iface;
 250   DBusGProxy *group_iface;
 251
 252   empathy_debug (DEBUG_DOMAIN, "Channel closed");
 253
 254   priv->status = EMPATHY_TP_CALL_STATUS_CLOSED;
 255   g_signal_emit (call, signals[STATUS_CHANGED_SIGNAL], 0);
 256
 257   streamed_iface = tp_chan_get_interface (priv->channel,
 258       TELEPATHY_CHAN_IFACE_STREAMED_QUARK);
 259   group_iface = tp_chan_get_interface (priv->channel,
 260       TELEPATHY_CHAN_IFACE_GROUP_QUARK);
 261
 262   dbus_g_proxy_disconnect_signal (DBUS_G_PROXY (priv->channel), "Closed",
 263       G_CALLBACK (tp_call_channel_closed_cb), call);
 264   dbus_g_proxy_disconnect_signal (streamed_iface, "StreamStateChanged",
 265       G_CALLBACK (tp_call_stream_state_changed_cb), call);
 266   dbus_g_proxy_disconnect_signal (streamed_iface, "StreamAdded",
 267       G_CALLBACK (tp_call_stream_added_cb), call);
 268   dbus_g_proxy_disconnect_signal (streamed_iface, "StreamRemoved",
 269       G_CALLBACK (tp_call_stream_removed_cb), call);
 270 }
 271
 272 static void
 273 tp_call_stream_direction_changed_cb (DBusGProxy *channel,
 274                                      guint stream_id,
 275                                      guint stream_direction,
 276                                      guint flags,
 277                                      EmpathyTpCall *call)
 278 {
 279   EmpathyTpCallPriv *priv = GET_PRIV (call);
 280
 281   empathy_debug (DEBUG_DOMAIN,
 282       "Stream direction changed - stream: %d, direction: %d",
 283       stream_id, stream_direction);
 284
 285   if (stream_id == priv->audio->id)
 286     {
 287       priv->audio->direction = stream_direction;
 288     }
 289   else if (stream_id == priv->video->id)
 290     {
 291       priv->video->direction = stream_direction;
 292
 293       if (stream_direction & TP_MEDIA_STREAM_DIRECTION_RECEIVE)
 294         {
 295           empathy_debug (DEBUG_DOMAIN, "RECEIVING");
 296           g_signal_emit (call, signals[RECEIVING_VIDEO_SIGNAL], 0, TRUE);
 297         }
 298       else
 299         {
 300           empathy_debug (DEBUG_DOMAIN, "NOT RECEIVING");
 301           g_signal_emit (call, signals[RECEIVING_VIDEO_SIGNAL], 0, FALSE);
 302         }
 303
 304       if (stream_direction & TP_MEDIA_STREAM_DIRECTION_SEND)
 305         {
 306           empathy_debug (DEBUG_DOMAIN, "SENDING");
 307           g_signal_emit (call, signals[SENDING_VIDEO_SIGNAL], 0, TRUE);
 308         }
 309       else
 310         {
 311           empathy_debug (DEBUG_DOMAIN, "NOT SENDING");
 312           g_signal_emit (call, signals[SENDING_VIDEO_SIGNAL], 0, FALSE);
 313         }
 314     }
 315 }
 316
 317 static void
 318 tp_call_request_streams_for_capabilities (EmpathyTpCall *call,
 319                                           EmpathyCapabilities capabilities)
 320 {
 321   EmpathyTpCallPriv *priv = GET_PRIV (call);
 322   DBusGProxy *streamed_iface;
 323   GArray *stream_types;
 324   guint handle;
 325   guint stream_type;
 326   GError *error = NULL;
 327
 328   empathy_debug (DEBUG_DOMAIN, "Requesting new stream for capabilities %d",
 329       capabilities);
 330
 331   streamed_iface = tp_chan_get_interface (priv->channel,
 332       TELEPATHY_CHAN_IFACE_STREAMED_QUARK);
 333   stream_types = g_array_new (FALSE, FALSE, sizeof (guint));
 334   handle = empathy_contact_get_handle (priv->contact);
 335
 336   if (capabilities & EMPATHY_CAPABILITIES_AUDIO)
 337     {
 338       stream_type = TP_MEDIA_STREAM_TYPE_AUDIO;
 339       g_array_append_val (stream_types, stream_type);
 340     }
 341   if (capabilities & EMPATHY_CAPABILITIES_VIDEO)
 342     {
 343       stream_type = TP_MEDIA_STREAM_TYPE_VIDEO;
 344       g_array_append_val (stream_types, stream_type);
 345     }
 346
 347   if (!tp_chan_type_streamed_media_request_streams (streamed_iface, handle,
 348         stream_types, NULL, &error))
 349     {
 350       empathy_debug (DEBUG_DOMAIN, "Couldn't request new stream: %s",
 351           error->message);
 352       g_clear_error (&error);
 353     }
 354
 355   g_array_free (stream_types, TRUE);
 356 }
 357
 358 static void
 359 tp_call_request_streams_capabilities_cb (EmpathyContact *contact,
 360                                          GParamSpec *property,
 361                                          gpointer user_data)
 362 {
 363   EmpathyTpCall *call = EMPATHY_TP_CALL (user_data);
 364
 365   g_signal_handlers_disconnect_by_func (contact,
 366       tp_call_request_streams_capabilities_cb,
 367       user_data);
 368
 369   tp_call_request_streams_for_capabilities (call,
 370      empathy_contact_get_capabilities (contact));
 371 }
 372
 373 static void
 374 tp_call_request_streams (EmpathyTpCall *call)
 375 {
 376   EmpathyTpCallPriv *priv = GET_PRIV (call);
 377   EmpathyCapabilities capabilities;
 378   DBusGProxy *capabilities_iface;
 379
 380   empathy_debug (DEBUG_DOMAIN,
 381       "Requesting appropriate audio/video streams from contact");
 382
 383
 384   /* FIXME: SIP don't have capabilities interface but we know it supports
 385    *        only audio and not video. */
 386   capabilities_iface = tp_conn_get_interface (priv->connection,
 387       TP_IFACE_QUARK_CONNECTION_INTERFACE_CAPABILITIES);
 388   if (!capabilities_iface)
 389     {
 390       capabilities = EMPATHY_CAPABILITIES_AUDIO;
 391     }
 392   else
 393     {
 394       capabilities = empathy_contact_get_capabilities (priv->contact);
 395       if (capabilities == EMPATHY_CAPABILITIES_UNKNOWN)
 396         {
 397           g_signal_connect (priv->contact, "notify::capabilities",
 398               G_CALLBACK (tp_call_request_streams_capabilities_cb), call);
 399           return;
 400         }
 401     }
 402
 403   tp_call_request_streams_for_capabilities (call, capabilities);
 404 }
 405
 406 static void
 407 tp_call_is_ready (EmpathyTpCall *call)
 408 {
 409   EmpathyTpCallPriv *priv = GET_PRIV (call);
 410   GList *members;
 411   GList *local_pendings;
 412   GList *remote_pendings;
 413
 414   if (priv->status > EMPATHY_TP_CALL_STATUS_READYING)
 415     return;
 416
 417   members = empathy_tp_group_get_members (priv->group);
 418   if (!members)
 419     return;
 420
 421   local_pendings = empathy_tp_group_get_local_pendings (priv->group);
 422   remote_pendings = empathy_tp_group_get_remote_pendings (priv->group);
 423
 424   if (local_pendings &&
 425       empathy_contact_is_user (((EmpathyPendingInfo *) local_pendings->data)->member))
 426     {
 427       empathy_debug (DEBUG_DOMAIN,
 428           "Incoming call is ready - %p",
 429           ((EmpathyPendingInfo *) local_pendings->data)->member);
 430       priv->is_incoming = TRUE;
 431       priv->contact = g_object_ref (members->data);
 432     }
 433   else if (remote_pendings && empathy_contact_is_user (members->data))
 434     {
 435       empathy_debug (DEBUG_DOMAIN,
 436           "Outgoing call is ready - %p", remote_pendings->data);
 437       priv->is_incoming = FALSE;
 438       priv->contact = g_object_ref (remote_pendings->data);
 439       tp_call_request_streams (call);
 440     }
 441
 442   g_list_foreach (members, (GFunc) g_object_unref, NULL);
 443   g_list_free (members);
 444   g_list_foreach (local_pendings, (GFunc) empathy_pending_info_free, NULL);
 445   g_list_free (local_pendings);
 446   g_list_foreach (remote_pendings, (GFunc) g_object_unref, NULL);
 447   g_list_free (remote_pendings);
 448
 449   if (priv->contact)
 450     {
 451       priv->status = EMPATHY_TP_CALL_STATUS_PENDING;
 452       g_signal_emit (call, signals[STATUS_CHANGED_SIGNAL], 0);
 453     }
 454 }
 455
 456 static void
 457 tp_call_member_added_cb (EmpathyTpGroup *group,
 458                          EmpathyContact *contact,
 459                          EmpathyContact *actor,
 460                          guint reason,
 461                          const gchar *message,
 462                          EmpathyTpCall *call)
 463 {
 464   EmpathyTpCallPriv *priv = GET_PRIV (call);
 465
 466   empathy_debug (DEBUG_DOMAIN, "New member added callback %p", contact);
 467   tp_call_is_ready (call);
 468
 469   if (priv->status == EMPATHY_TP_CALL_STATUS_PENDING)
 470     {
 471       if ((priv->is_incoming && contact != priv->contact) ||
 472           (!priv->is_incoming && contact == priv->contact))
 473         {
 474           priv->status = EMPATHY_TP_CALL_STATUS_ACCEPTED;
 475           g_signal_emit (call, signals[STATUS_CHANGED_SIGNAL], 0);
 476         }
 477     }
 478 }
 479
 480 static void
 481 tp_call_local_pending_cb (EmpathyTpGroup *group,
 482                           EmpathyContact *contact,
 483                           EmpathyContact *actor,
 484                           guint reason,
 485                           const gchar *message,
 486                           EmpathyTpCall *call)
 487 {
 488   empathy_debug (DEBUG_DOMAIN, "New local pending added callback %p", contact);
 489   tp_call_is_ready (call);
 490 }
 491
 492 static void
 493 tp_call_remote_pending_cb (EmpathyTpGroup *group,
 494                            EmpathyContact *contact,
 495                            EmpathyContact *actor,
 496                            guint reason,
 497                            const gchar *message,
 498                            EmpathyTpCall *call)
 499 {
 500   empathy_debug (DEBUG_DOMAIN, "New remote pending added callback %p", contact);
 501   tp_call_is_ready (call);
 502 }
 503
 504 static void
 505 tp_call_async_cb (TpProxy *proxy,
 506                   const GError *error,
 507                   gpointer user_data,
 508                   GObject *call)
 509 {
 510   if (error)
 511     {
 512       empathy_debug (DEBUG_DOMAIN, "Error %s: %s",
 513           user_data, error->message);
 514     }
 515 }
 516
 517 static void
 518 tp_call_watch_name_owner_cb (TpDBusDaemon *daemon,
 519                              const gchar *name,
 520                              const gchar *new_owner,
 521                              gpointer call)
 522 {
 523   EmpathyTpCallPriv *priv = GET_PRIV (call);
 524
 525   /* G_STR_EMPTY(new_owner) means either stream-engine has not started yet or
 526    * has crashed. We want to close the channel if stream-engine has crashed.
 527    * */
 528   empathy_debug (DEBUG_DOMAIN,
 529                  "Watch SE: name='%s' SE started='%s' new_owner='%s'",
 530                  name, priv->stream_engine_started ? "yes" : "no",
 531                  new_owner ? new_owner : "none");
 532   if (priv->stream_engine_started && G_STR_EMPTY (new_owner))
 533     {
 534       empathy_debug (DEBUG_DOMAIN, "Stream engine falled off the bus");
 535       empathy_tp_call_close_channel (call);
 536     }
 537   priv->stream_engine_started = !G_STR_EMPTY (new_owner);
 538 }
 539
 540 static void
 541 tp_call_start_stream_engine (EmpathyTpCall *call)
 542 {
 543   EmpathyTpCallPriv *priv = GET_PRIV (call);
 544
 545   empathy_debug (DEBUG_DOMAIN, "Revving up the stream engine");
 546
 547   priv->stream_engine = g_object_new (TP_TYPE_PROXY,
 548       "bus-name", STREAM_ENGINE_BUS_NAME,
 549       "dbus-connection", tp_get_bus (),
 550       "object-path", STREAM_ENGINE_OBJECT_PATH,
 551        NULL);
 552   tp_proxy_add_interface_by_id (priv->stream_engine,
 553       EMP_IFACE_QUARK_STREAM_ENGINE);
 554   tp_proxy_add_interface_by_id (priv->stream_engine,
 555       EMP_IFACE_QUARK_CHANNEL_HANDLER);
 556
 557   g_signal_connect (priv->stream_engine, "invalidated",
 558       G_CALLBACK (tp_call_invalidated_cb),
 559       call);
 560
 561   /* FIXME: dbus daemon should be unique */
 562   priv->dbus_daemon = tp_dbus_daemon_new (tp_get_bus ());
 563   tp_dbus_daemon_watch_name_owner (priv->dbus_daemon, STREAM_ENGINE_BUS_NAME,
 564       tp_call_watch_name_owner_cb,
 565       call, NULL);
 566
 567   emp_cli_channel_handler_call_handle_channel (priv->stream_engine, -1,
 568         dbus_g_proxy_get_bus_name (DBUS_G_PROXY (priv->connection)),
 569         dbus_g_proxy_get_path (DBUS_G_PROXY (priv->connection)),
 570         priv->channel->type,
 571         dbus_g_proxy_get_path (DBUS_G_PROXY (priv->channel)),
 572         priv->channel->handle_type, priv->channel->handle,
 573         tp_call_async_cb,
 574         "calling handle channel", NULL,
 575         G_OBJECT (call));
 576 }
 577
 578 static GObject *
 579 tp_call_constructor (GType type,
 580                      guint n_construct_params,
 581                      GObjectConstructParam *construct_params)
 582 {
 583   GObject *object;
 584   EmpathyTpCall *call;
 585   EmpathyTpCallPriv *priv;
 586   DBusGProxy *streamed_iface;
 587   MissionControl *mc;
 588   McAccount *account;
 589
 590   object = G_OBJECT_CLASS (empathy_tp_call_parent_class)->constructor (type,
 591       n_construct_params, construct_params);
 592
 593   call = EMPATHY_TP_CALL (object);
 594   priv = GET_PRIV (call);
 595
 596   dbus_g_proxy_connect_signal (DBUS_G_PROXY (priv->channel), "Closed",
 597      G_CALLBACK (tp_call_channel_closed_cb), call, NULL);
 598
 599   streamed_iface = tp_chan_get_interface (priv->channel,
 600       TELEPATHY_CHAN_IFACE_STREAMED_QUARK);
 601   dbus_g_proxy_connect_signal (streamed_iface, "StreamStateChanged",
 602       G_CALLBACK (tp_call_stream_state_changed_cb),
 603       call, NULL);
 604   dbus_g_proxy_connect_signal (streamed_iface, "StreamDirectionChanged",
 605       G_CALLBACK (tp_call_stream_direction_changed_cb),
 606       call, NULL);
 607   dbus_g_proxy_connect_signal (streamed_iface, "StreamAdded",
 608       G_CALLBACK (tp_call_stream_added_cb), call, NULL);
 609   dbus_g_proxy_connect_signal (streamed_iface, "StreamRemoved",
 610       G_CALLBACK (tp_call_stream_removed_cb), call, NULL);
 611
 612   mc = empathy_mission_control_new ();
 613   account = mission_control_get_account_for_connection (mc, priv->connection,
 614       NULL);
 615   priv->group = empathy_tp_group_new (account, priv->channel);
 616   g_object_unref (mc);
 617
 618   g_signal_connect (G_OBJECT (priv->group), "member-added",
 619       G_CALLBACK (tp_call_member_added_cb), call);
 620   g_signal_connect (G_OBJECT (priv->group), "local-pending",
 621       G_CALLBACK (tp_call_local_pending_cb), call);
 622   g_signal_connect (G_OBJECT (priv->group), "remote-pending",
 623       G_CALLBACK (tp_call_remote_pending_cb), call);
 624
 625   tp_call_start_stream_engine (call);
 626   /* FIXME: unnecessary for outgoing? */
 627   tp_call_identify_streams (call);
 628
 629   return object;
 630 }
 631
 632 static void
 633 tp_call_finalize (GObject *object)
 634 {
 635   EmpathyTpCallPriv *priv = GET_PRIV (object);
 636
 637   empathy_debug (DEBUG_DOMAIN, "Finalizing: %p", object);
 638
 639   g_slice_free (EmpathyTpCallStream, priv->audio);
 640   g_slice_free (EmpathyTpCallStream, priv->video);
 641   g_object_unref (priv->group);
 642
 643   if (priv->connection != NULL)
 644     g_object_unref (priv->connection);
 645
 646   if (priv->channel != NULL)
 647     g_object_unref (priv->channel);
 648
 649   if (priv->stream_engine != NULL)
 650     {
 651       g_signal_handlers_disconnect_by_func (priv->stream_engine,
 652           tp_call_invalidated_cb, object);
 653       g_object_unref (priv->stream_engine);
 654     }
 655
 656   if (priv->contact != NULL)
 657       g_object_unref (priv->contact);
 658
 659   if (priv->dbus_daemon != NULL)
 660     {
 661       tp_dbus_daemon_cancel_name_owner_watch (priv->dbus_daemon,
 662           STREAM_ENGINE_BUS_NAME,
 663           tp_call_watch_name_owner_cb,
 664           object);
 665       g_object_unref (priv->dbus_daemon);
 666     }
 667
 668   (G_OBJECT_CLASS (empathy_tp_call_parent_class)->finalize) (object);
 669 }
 670
 671 static void
 672 tp_call_set_property (GObject *object,
 673                       guint prop_id,
 674                       const GValue *value,
 675                       GParamSpec *pspec)
 676 {
 677   EmpathyTpCallPriv *priv = GET_PRIV (object);
 678
 679   switch (prop_id)
 680     {
 681     case PROP_CONNECTION:
 682       priv->connection = g_value_dup_object (value);
 683       break;
 684     case PROP_CHANNEL:
 685       priv->channel = g_value_dup_object (value);
 686       break;
 687     case PROP_CONTACT:
 688       /* FIXME should this one be writable in the first place ? */
 689       g_assert (priv->contact == NULL);
 690       priv->contact = g_value_dup_object (value);
 691       break;
 692     case PROP_IS_INCOMING:
 693       priv->is_incoming = g_value_get_boolean (value);
 694       break;
 695     case PROP_STATUS:
 696       priv->status = g_value_get_uint (value);
 697       break;
 698     case PROP_AUDIO_STREAM:
 699       priv->audio = g_value_get_pointer (value);
 700       break;
 701     case PROP_VIDEO_STREAM:
 702       priv->video = g_value_get_pointer (value);
 703       break;
 704     default:
 705       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 706       break;
 707   }
 708 }
 709
 710
 711 static void
 712 tp_call_get_property (GObject *object,
 713                       guint prop_id,
 714                       GValue *value,
 715                       GParamSpec *pspec)
 716 {
 717   EmpathyTpCallPriv *priv = GET_PRIV (object);
 718
 719   switch (prop_id)
 720     {
 721     case PROP_CONNECTION:
 722       g_value_set_object (value, priv->connection);
 723       break;
 724     case PROP_CHANNEL:
 725       g_value_set_object (value, priv->channel);
 726       break;
 727     case PROP_CONTACT:
 728       g_value_set_object (value, priv->contact);
 729       break;
 730     case PROP_IS_INCOMING:
 731       g_value_set_boolean (value, priv->is_incoming);
 732       break;
 733     case PROP_STATUS:
 734       g_value_set_uint (value, priv->status);
 735       break;
 736     case PROP_AUDIO_STREAM:
 737       g_value_set_pointer (value, priv->audio);
 738       break;
 739     case PROP_VIDEO_STREAM:
 740       g_value_set_pointer (value, priv->video);
 741       break;
 742     default:
 743       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 744       break;
 745   }
 746 }
 747
 748 static void
 749 empathy_tp_call_class_init (EmpathyTpCallClass *klass)
 750 {
 751   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 752
 753   emp_cli_init ();
 754
 755   object_class->constructor = tp_call_constructor;
 756   object_class->finalize = tp_call_finalize;
 757   object_class->set_property = tp_call_set_property;
 758   object_class->get_property = tp_call_get_property;
 759
 760   g_type_class_add_private (klass, sizeof (EmpathyTpCallPriv));
 761
 762   signals[STATUS_CHANGED_SIGNAL] =
 763       g_signal_new ("status-changed", G_TYPE_FROM_CLASS (klass),
 764       G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID,
 765       G_TYPE_NONE, 0);
 766   signals[RECEIVING_VIDEO_SIGNAL] =
 767       g_signal_new ("receiving-video", G_TYPE_FROM_CLASS (klass),
 768       G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN,
 769       G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
 770   signals[SENDING_VIDEO_SIGNAL] =
 771       g_signal_new ("sending-video", G_TYPE_FROM_CLASS (klass),
 772       G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN,
 773       G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
 774
 775   g_object_class_install_property (object_class, PROP_CONNECTION,
 776       g_param_spec_object ("connection", "connection", "connection",
 777       TELEPATHY_CONN_TYPE,
 778       G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
 779       G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 780   g_object_class_install_property (object_class, PROP_CHANNEL,
 781       g_param_spec_object ("channel", "channel", "channel",
 782       TELEPATHY_CHAN_TYPE,
 783       G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
 784       G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 785   g_object_class_install_property (object_class, PROP_CONTACT,
 786       g_param_spec_object ("contact", "Call contact", "Call contact",
 787       EMPATHY_TYPE_CONTACT,
 788       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 789   g_object_class_install_property (object_class, PROP_IS_INCOMING,
 790       g_param_spec_boolean ("is-incoming", "Is media stream incoming",
 791       "Is media stream incoming", FALSE, G_PARAM_READABLE |
 792       G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 793   g_object_class_install_property (object_class, PROP_STATUS,
 794       g_param_spec_uint ("status", "Call status",
 795       "Call status", 0, 255, 0, G_PARAM_READABLE | G_PARAM_STATIC_NICK |
 796       G_PARAM_STATIC_BLURB));
 797   g_object_class_install_property (object_class, PROP_AUDIO_STREAM,
 798       g_param_spec_pointer ("audio-stream", "Audio stream data",
 799       "Audio stream data",
 800       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 801   g_object_class_install_property (object_class, PROP_VIDEO_STREAM,
 802       g_param_spec_pointer ("video-stream", "Video stream data",
 803       "Video stream data",
 804       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 805 }
 806
 807 static void
 808 empathy_tp_call_init (EmpathyTpCall *call)
 809 {
 810   EmpathyTpCallPriv *priv = GET_PRIV (call);
 811
 812   priv->status = EMPATHY_TP_CALL_STATUS_READYING;
 813   priv->contact = NULL;
 814   priv->stream_engine_started = FALSE;
 815   priv->audio = g_slice_new0 (EmpathyTpCallStream);
 816   priv->video = g_slice_new0 (EmpathyTpCallStream);
 817   priv->audio->exists = FALSE;
 818   priv->video->exists = FALSE;
 819 }
 820
 821 EmpathyTpCall *
 822 empathy_tp_call_new (TpConn *connection, TpChan *channel)
 823 {
 824   return g_object_new (EMPATHY_TYPE_TP_CALL,
 825       "connection", connection,
 826       "channel", channel,
 827       NULL);
 828 }
 829
 830 void
 831 empathy_tp_call_accept_incoming_call (EmpathyTpCall *call)
 832 {
 833   EmpathyTpCallPriv *priv = GET_PRIV (call);
 834   EmpathyContact *self_contact;
 835
 836   empathy_debug (DEBUG_DOMAIN, "Accepting incoming call");
 837
 838   self_contact = empathy_tp_group_get_self_contact (priv->group);
 839   empathy_tp_group_add_member (priv->group, self_contact, NULL);
 840   g_object_unref (self_contact);
 841 }
 842
 843 void
 844 empathy_tp_call_request_video_stream_direction (EmpathyTpCall *call,
 845                                                 gboolean is_sending)
 846 {
 847   EmpathyTpCallPriv *priv = GET_PRIV (call);
 848   DBusGProxy *streamed_iface;
 849   guint new_direction;
 850   GError *error = NULL;
 851
 852   empathy_debug (DEBUG_DOMAIN,
 853       "Requesting video stream direction - is_sending: %d", is_sending);
 854
 855   if (!priv->video->exists)
 856     {
 857       tp_call_request_streams_for_capabilities (call, EMPATHY_CAPABILITIES_VIDEO);
 858       return;
 859     }
 860
 861   streamed_iface = tp_chan_get_interface (priv->channel,
 862       TELEPATHY_CHAN_IFACE_STREAMED_QUARK);
 863
 864   if (is_sending)
 865     {
 866       new_direction = priv->video->direction | TP_MEDIA_STREAM_DIRECTION_SEND;
 867     }
 868   else
 869     {
 870       new_direction = priv->video->direction & ~TP_MEDIA_STREAM_DIRECTION_SEND;
 871     }
 872
 873   if (!tp_chan_type_streamed_media_request_stream_direction (streamed_iface,
 874         priv->video->id, new_direction, &error))
 875     {
 876       empathy_debug (DEBUG_DOMAIN,
 877           "Couldn't request video stream direction: %s", error->message);
 878       g_clear_error (&error);
 879     }
 880 }
 881
 882 void
 883 empathy_tp_call_close_channel (EmpathyTpCall *call)
 884 {
 885   EmpathyTpCallPriv *priv = GET_PRIV (call);
 886   GError *error = NULL;
 887
 888   if (priv->status == EMPATHY_TP_CALL_STATUS_CLOSED)
 889       return;
 890
 891   empathy_debug (DEBUG_DOMAIN, "Closing channel");
 892
 893   if (!tp_chan_close (DBUS_G_PROXY (priv->channel), &error))
 894     {
 895       empathy_debug (DEBUG_DOMAIN, "Error closing channel: %s",
 896           error ? error->message : "No error given");
 897       g_clear_error (&error);
 898     }
 899   else
 900       priv->status = EMPATHY_TP_CALL_STATUS_CLOSED;
 901 }
 902
 903 void
 904 empathy_tp_call_add_preview_video (EmpathyTpCall *call,
 905                                    guint preview_video_socket_id)
 906 {
 907   EmpathyTpCallPriv *priv = GET_PRIV (call);
 908
 909   empathy_debug (DEBUG_DOMAIN, "Adding preview video");
 910
 911   emp_cli_stream_engine_call_add_preview_window (priv->stream_engine, -1,
 912       preview_video_socket_id,
 913       tp_call_async_cb,
 914       "adding preview window", NULL,
 915       G_OBJECT (call));
 916 }
 917
 918 void
 919 empathy_tp_call_remove_preview_video (EmpathyTpCall *call,
 920                                       guint preview_video_socket_id)
 921 {
 922   EmpathyTpCallPriv *priv = GET_PRIV (call);
 923
 924   empathy_debug (DEBUG_DOMAIN, "Removing preview video");
 925
 926   emp_cli_stream_engine_call_remove_preview_window (priv->stream_engine, -1,
 927       preview_video_socket_id,
 928       tp_call_async_cb,
 929       "removing preview window", NULL,
 930       G_OBJECT (call));
 931 }
 932
 933 void
 934 empathy_tp_call_add_output_video (EmpathyTpCall *call,
 935                                   guint output_video_socket_id)
 936 {
 937   EmpathyTpCallPriv *priv = GET_PRIV (call);
 938
 939   empathy_debug (DEBUG_DOMAIN, "Adding output video - socket: %d",
 940       output_video_socket_id);
 941
 942   emp_cli_stream_engine_call_set_output_window (priv->stream_engine, -1,
 943       dbus_g_proxy_get_path (DBUS_G_PROXY (priv->channel)),
 944       priv->video->id, output_video_socket_id,
 945       tp_call_async_cb,
 946       "setting output window", NULL,
 947       G_OBJECT (call));
 948 }
 949
 950 void
 951 empathy_tp_call_set_output_volume (EmpathyTpCall *call,
 952                                    guint volume)
 953 {
 954   EmpathyTpCallPriv *priv = GET_PRIV (call);
 955
 956   if (priv->status == EMPATHY_TP_CALL_STATUS_CLOSED)
 957     return;
 958
 959   empathy_debug (DEBUG_DOMAIN, "Setting output volume: %d", volume);
 960
 961   emp_cli_stream_engine_call_set_output_volume (priv->stream_engine, -1,
 962       dbus_g_proxy_get_path (DBUS_G_PROXY (priv->channel)),
 963       priv->audio->id, volume,
 964       tp_call_async_cb,
 965       "setting output volume", NULL,
 966       G_OBJECT (call));
 967 }
 968
 969 void
 970 empathy_tp_call_mute_output (EmpathyTpCall *call,
 971                              gboolean is_muted)
 972 {
 973   EmpathyTpCallPriv *priv = GET_PRIV (call);
 974
 975   if (priv->status == EMPATHY_TP_CALL_STATUS_CLOSED)
 976     return;
 977
 978   empathy_debug (DEBUG_DOMAIN, "Setting output mute: %d", is_muted);
 979
 980   emp_cli_stream_engine_call_mute_output (priv->stream_engine, -1,
 981       dbus_g_proxy_get_path (DBUS_G_PROXY (priv->channel)),
 982       priv->audio->id, is_muted,
 983       tp_call_async_cb,
 984       "muting output", NULL,
 985       G_OBJECT (call));
 986 }
 987
 988 void
 989 empathy_tp_call_mute_input (EmpathyTpCall *call,
 990                             gboolean is_muted)
 991 {
 992   EmpathyTpCallPriv *priv = GET_PRIV (call);
 993
 994   if (priv->status == EMPATHY_TP_CALL_STATUS_CLOSED)
 995     return;
 996
 997   empathy_debug (DEBUG_DOMAIN, "Setting input mute: %d", is_muted);
 998
 999   emp_cli_stream_engine_call_mute_input (priv->stream_engine, -1,
1000       dbus_g_proxy_get_path (DBUS_G_PROXY (priv->channel)),
1001       priv->audio->id, is_muted,
1002       tp_call_async_cb,
1003       "muting input", NULL,
1004       G_OBJECT (call));
1005 }
1006