libempathy/empathy-tp-call.c

   1 /*
   2  * Copyright (C) 2007 Elliot Fairweather
   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: Elliot Fairweather <elliot.fairweather@collabora.co.uk>
  20  *          Xavier Claessens <xclaesse@gmail.com>
  21  */
  22
  23 #include <string.h>
  24
  25 #include <telepathy-glib/proxy-subclass.h>
  26 #include <telepathy-glib/dbus.h>
  27 #include <telepathy-glib/interfaces.h>
  28
  29 #include "empathy-tp-call.h"
  30 #include "empathy-tp-contact-factory.h"
  31 #include "empathy-utils.h"
  32
  33 #define DEBUG_FLAG EMPATHY_DEBUG_TP
  34 #include "empathy-debug.h"
  35
  36 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyTpCall)
  37 typedef struct
  38 {
  39   gboolean dispose_has_run;
  40   TpChannel *channel;
  41   EmpathyContact *contact;
  42   gboolean is_incoming;
  43   guint status;
  44
  45   EmpathyTpCallStream *audio;
  46   EmpathyTpCallStream *video;
  47 } EmpathyTpCallPriv;
  48
  49 enum
  50 {
  51   PROP_0,
  52   PROP_CHANNEL,
  53   PROP_CONTACT,
  54   PROP_IS_INCOMING,
  55   PROP_STATUS,
  56   PROP_AUDIO_STREAM,
  57   PROP_VIDEO_STREAM
  58 };
  59
  60 G_DEFINE_TYPE (EmpathyTpCall, empathy_tp_call, G_TYPE_OBJECT)
  61
  62 static void
  63 tp_call_add_stream (EmpathyTpCall *call,
  64                     guint stream_id,
  65                     guint contact_handle,
  66                     guint stream_type,
  67                     guint stream_state,
  68                     guint stream_direction)
  69 {
  70   EmpathyTpCallPriv *priv = GET_PRIV (call);
  71
  72   switch (stream_type)
  73     {
  74       case TP_MEDIA_STREAM_TYPE_AUDIO:
  75         DEBUG ("Audio stream - id: %d, state: %d, direction: %d",
  76             stream_id, stream_state, stream_direction);
  77         priv->audio->exists = TRUE;
  78         priv->audio->id = stream_id;
  79         priv->audio->state = stream_state;
  80         priv->audio->direction = stream_direction;
  81         g_object_notify (G_OBJECT (call), "audio-stream");
  82         break;
  83       case TP_MEDIA_STREAM_TYPE_VIDEO:
  84         DEBUG ("Video stream - id: %d, state: %d, direction: %d",
  85             stream_id, stream_state, stream_direction);
  86         priv->video->exists = TRUE;
  87         priv->video->id = stream_id;
  88         priv->video->state = stream_state;
  89         priv->video->direction = stream_direction;
  90         g_object_notify (G_OBJECT (call), "video-stream");
  91         break;
  92       default:
  93         DEBUG ("Unknown stream type: %d", stream_type);
  94     }
  95 }
  96
  97 static void
  98 tp_call_stream_added_cb (TpChannel *channel,
  99                          guint stream_id,
 100                          guint contact_handle,
 101                          guint stream_type,
 102                          gpointer user_data,
 103                          GObject *call)
 104 {
 105   DEBUG ("Stream added - stream id: %d, contact handle: %d, stream type: %d",
 106       stream_id, contact_handle, stream_type);
 107
 108   tp_call_add_stream (EMPATHY_TP_CALL (call), stream_id, contact_handle,
 109       stream_type, TP_MEDIA_STREAM_STATE_DISCONNECTED,
 110       TP_MEDIA_STREAM_DIRECTION_NONE);
 111 }
 112
 113 static void
 114 tp_call_stream_removed_cb (TpChannel *channel,
 115                            guint stream_id,
 116                            gpointer user_data,
 117                            GObject *call)
 118 {
 119   EmpathyTpCallPriv *priv = GET_PRIV (call);
 120
 121   DEBUG ("Stream removed - stream id: %d", stream_id);
 122
 123   if (stream_id == priv->audio->id)
 124     {
 125       priv->audio->exists = FALSE;
 126       g_object_notify (call, "audio-stream");
 127     }
 128   else if (stream_id == priv->video->id)
 129     {
 130       priv->video->exists = FALSE;
 131       g_object_notify (call, "video-stream");
 132     }
 133 }
 134
 135 static void
 136 tp_call_stream_state_changed_cb (TpChannel *proxy,
 137                                  guint stream_id,
 138                                  guint stream_state,
 139                                  gpointer user_data,
 140                                  GObject *call)
 141 {
 142   EmpathyTpCallPriv *priv = GET_PRIV (call);
 143
 144   DEBUG ("Stream state changed - stream id: %d, state state: %d",
 145       stream_id, stream_state);
 146
 147   if (stream_id == priv->audio->id)
 148     {
 149       priv->audio->state = stream_state;
 150       g_object_notify (call, "audio-stream");
 151     }
 152   else if (stream_id == priv->video->id)
 153     {
 154       priv->video->state = stream_state;
 155       g_object_notify (call, "video-stream");
 156     }
 157 }
 158
 159 static void
 160 tp_call_stream_direction_changed_cb (TpChannel *channel,
 161                                      guint stream_id,
 162                                      guint stream_direction,
 163                                      guint pending_flags,
 164                                      gpointer user_data,
 165                                      GObject *call)
 166 {
 167   EmpathyTpCallPriv *priv = GET_PRIV (call);
 168
 169   DEBUG ("Stream direction changed - stream: %d, direction: %d",
 170       stream_id, stream_direction);
 171
 172   if (stream_id == priv->audio->id)
 173     {
 174       priv->audio->direction = stream_direction;
 175       g_object_notify (call, "audio-stream");
 176     }
 177   else if (stream_id == priv->video->id)
 178     {
 179       priv->video->direction = stream_direction;
 180       g_object_notify (call, "video-stream");
 181     }
 182 }
 183
 184 static void
 185 tp_call_request_streams_cb (TpChannel *channel,
 186                             const GPtrArray *streams,
 187                             const GError *error,
 188                             gpointer user_data,
 189                             GObject *call)
 190 {
 191   guint i;
 192
 193   if (error)
 194     {
 195       DEBUG ("Error requesting streams: %s", error->message);
 196       return;
 197     }
 198
 199   for (i = 0; i < streams->len; i++)
 200     {
 201       GValueArray *values;
 202       guint stream_id;
 203       guint contact_handle;
 204       guint stream_type;
 205       guint stream_state;
 206       guint stream_direction;
 207
 208       values = g_ptr_array_index (streams, i);
 209       stream_id = g_value_get_uint (g_value_array_get_nth (values, 0));
 210       contact_handle = g_value_get_uint (g_value_array_get_nth (values, 1));
 211       stream_type = g_value_get_uint (g_value_array_get_nth (values, 2));
 212       stream_state = g_value_get_uint (g_value_array_get_nth (values, 3));
 213       stream_direction = g_value_get_uint (g_value_array_get_nth (values, 4));
 214
 215       tp_call_add_stream (EMPATHY_TP_CALL (call), stream_id, contact_handle,
 216           stream_type, stream_state, stream_direction);
 217   }
 218 }
 219
 220 static void
 221 tp_call_request_streams_for_capabilities (EmpathyTpCall *call,
 222                                           EmpathyCapabilities capabilities)
 223 {
 224   EmpathyTpCallPriv *priv = GET_PRIV (call);
 225   GArray *stream_types;
 226   guint handle;
 227   guint stream_type;
 228
 229   if (capabilities == EMPATHY_CAPABILITIES_UNKNOWN)
 230       capabilities = EMPATHY_CAPABILITIES_AUDIO | EMPATHY_CAPABILITIES_VIDEO;
 231
 232   DEBUG ("Requesting new stream for capabilities %d",
 233       capabilities);
 234
 235   stream_types = g_array_new (FALSE, FALSE, sizeof (guint));
 236   handle = empathy_contact_get_handle (priv->contact);
 237
 238   if (capabilities & EMPATHY_CAPABILITIES_AUDIO)
 239     {
 240       stream_type = TP_MEDIA_STREAM_TYPE_AUDIO;
 241       g_array_append_val (stream_types, stream_type);
 242     }
 243   if (capabilities & EMPATHY_CAPABILITIES_VIDEO)
 244     {
 245       stream_type = TP_MEDIA_STREAM_TYPE_VIDEO;
 246       g_array_append_val (stream_types, stream_type);
 247     }
 248
 249   tp_cli_channel_type_streamed_media_call_request_streams (priv->channel, -1,
 250       handle, stream_types, tp_call_request_streams_cb, NULL, NULL,
 251       G_OBJECT (call));
 252
 253   g_array_free (stream_types, TRUE);
 254 }
 255
 256 static void
 257 tp_call_got_contact_cb (EmpathyTpContactFactory *factory,
 258                         EmpathyContact          *contact,
 259                         const GError            *error,
 260                         gpointer                 user_data,
 261                         GObject                 *call)
 262 {
 263   EmpathyTpCallPriv *priv = GET_PRIV (call);
 264
 265   if (error)
 266     {
 267       DEBUG ("Error: %s", error->message);
 268       return;
 269     }
 270
 271   priv->contact = g_object_ref (contact);
 272   priv->is_incoming = TRUE;
 273   priv->status = EMPATHY_TP_CALL_STATUS_PENDING;
 274   g_object_notify (G_OBJECT (call), "is-incoming");
 275   g_object_notify (G_OBJECT (call), "contact");
 276   g_object_notify (G_OBJECT (call), "status");
 277 }
 278
 279 static void
 280 tp_call_update_status (EmpathyTpCall *call)
 281 {
 282   EmpathyTpCallPriv *priv = GET_PRIV (call);
 283   TpHandle self_handle;
 284   const TpIntSet *set;
 285   TpIntSetIter iter;
 286
 287   g_object_ref (call);
 288
 289   self_handle = tp_channel_group_get_self_handle (priv->channel);
 290   set = tp_channel_group_get_members (priv->channel);
 291   tp_intset_iter_init (&iter, set);
 292   while (tp_intset_iter_next (&iter))
 293     {
 294       if (priv->contact == NULL && iter.element != self_handle)
 295         {
 296           EmpathyTpContactFactory *factory;
 297           TpConnection *connection;
 298
 299           /* We found the remote contact */
 300           connection = tp_channel_borrow_connection (priv->channel);
 301           factory = empathy_tp_contact_factory_dup_singleton (connection);
 302           empathy_tp_contact_factory_get_from_handle (factory, iter.element,
 303               tp_call_got_contact_cb, NULL, NULL, G_OBJECT (call));
 304           g_object_unref (factory);
 305         }
 306
 307       if (priv->status == EMPATHY_TP_CALL_STATUS_PENDING &&
 308           ((priv->is_incoming && iter.element == self_handle) ||
 309            (!priv->is_incoming && iter.element != self_handle)))
 310         {
 311           priv->status = EMPATHY_TP_CALL_STATUS_ACCEPTED;
 312           g_object_notify (G_OBJECT (call), "status");
 313         }
 314     }
 315
 316   g_object_unref (call);
 317 }
 318
 319 void
 320 empathy_tp_call_to (EmpathyTpCall *call, EmpathyContact *contact)
 321 {
 322   EmpathyTpCallPriv *priv = GET_PRIV (call);
 323
 324   priv->contact = g_object_ref (contact);
 325   priv->is_incoming = FALSE;
 326   priv->status = EMPATHY_TP_CALL_STATUS_PENDING;
 327   g_object_notify (G_OBJECT (call), "is-incoming");
 328   g_object_notify (G_OBJECT (call), "contact");
 329   g_object_notify (G_OBJECT (call), "status");
 330   tp_call_request_streams_for_capabilities (call, EMPATHY_CAPABILITIES_AUDIO);
 331 }
 332
 333 static void
 334 tp_call_channel_invalidated_cb (TpChannel     *channel,
 335                                 GQuark         domain,
 336                                 gint           code,
 337                                 gchar         *message,
 338                                 EmpathyTpCall *call)
 339 {
 340   EmpathyTpCallPriv *priv = GET_PRIV (call);
 341
 342   DEBUG ("Channel invalidated: %s", message);
 343   priv->status = EMPATHY_TP_CALL_STATUS_CLOSED;
 344   g_object_notify (G_OBJECT (call), "status");
 345 }
 346
 347 static void
 348 tp_call_async_cb (TpProxy *proxy,
 349                   const GError *error,
 350                   gpointer user_data,
 351                   GObject *call)
 352 {
 353   if (error)
 354       DEBUG ("Error %s: %s", (gchar*) user_data, error->message);
 355 }
 356
 357 static GObject *
 358 tp_call_constructor (GType type,
 359                      guint n_construct_params,
 360                      GObjectConstructParam *construct_params)
 361 {
 362   GObject *object;
 363   EmpathyTpCall *call;
 364   EmpathyTpCallPriv *priv;
 365
 366   object = G_OBJECT_CLASS (empathy_tp_call_parent_class)->constructor (type,
 367       n_construct_params, construct_params);
 368
 369   call = EMPATHY_TP_CALL (object);
 370   priv = GET_PRIV (call);
 371
 372   /* Setup streamed media channel */
 373   g_signal_connect (priv->channel, "invalidated",
 374       G_CALLBACK (tp_call_channel_invalidated_cb), call);
 375   tp_cli_channel_type_streamed_media_connect_to_stream_added (priv->channel,
 376       tp_call_stream_added_cb, NULL, NULL, G_OBJECT (call), NULL);
 377   tp_cli_channel_type_streamed_media_connect_to_stream_removed (priv->channel,
 378       tp_call_stream_removed_cb, NULL, NULL, G_OBJECT (call), NULL);
 379   tp_cli_channel_type_streamed_media_connect_to_stream_state_changed (priv->channel,
 380       tp_call_stream_state_changed_cb, NULL, NULL, G_OBJECT (call), NULL);
 381   tp_cli_channel_type_streamed_media_connect_to_stream_direction_changed (priv->channel,
 382       tp_call_stream_direction_changed_cb, NULL, NULL, G_OBJECT (call), NULL);
 383   tp_cli_channel_type_streamed_media_call_list_streams (priv->channel, -1,
 384       tp_call_request_streams_cb, NULL, NULL, G_OBJECT (call));
 385
 386   /* Update status when members changes */
 387   tp_call_update_status (call);
 388   g_signal_connect_swapped (priv->channel, "group-members-changed",
 389       G_CALLBACK (tp_call_update_status), call);
 390
 391   return object;
 392 }
 393 static void
 394 tp_call_dispose (GObject *object)
 395 {
 396   EmpathyTpCallPriv *priv = GET_PRIV (object);
 397
 398   DEBUG ("Disposing: %p, %d", object, priv->dispose_has_run);
 399
 400   if (priv->dispose_has_run)
 401     return;
 402
 403   priv->dispose_has_run = TRUE;
 404
 405   if (priv->channel != NULL)
 406     {
 407       g_signal_handlers_disconnect_by_func (priv->channel,
 408         tp_call_channel_invalidated_cb, object);
 409
 410       g_object_unref (priv->channel);
 411       priv->channel = NULL;
 412     }
 413
 414   if (priv->contact != NULL)
 415       g_object_unref (priv->contact);
 416
 417   if (G_OBJECT_CLASS (empathy_tp_call_parent_class)->dispose)
 418     G_OBJECT_CLASS (empathy_tp_call_parent_class)->dispose (object);
 419 }
 420
 421 static void
 422 tp_call_finalize (GObject *object)
 423 {
 424   EmpathyTpCallPriv *priv = GET_PRIV (object);
 425
 426   DEBUG ("Finalizing: %p", object);
 427
 428   g_slice_free (EmpathyTpCallStream, priv->audio);
 429   g_slice_free (EmpathyTpCallStream, priv->video);
 430
 431   (G_OBJECT_CLASS (empathy_tp_call_parent_class)->finalize) (object);
 432 }
 433
 434 static void
 435 tp_call_set_property (GObject *object,
 436                       guint prop_id,
 437                       const GValue *value,
 438                       GParamSpec *pspec)
 439 {
 440   EmpathyTpCallPriv *priv = GET_PRIV (object);
 441
 442   switch (prop_id)
 443     {
 444     case PROP_CHANNEL:
 445       priv->channel = g_value_dup_object (value);
 446       break;
 447     default:
 448       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 449       break;
 450   }
 451 }
 452
 453 static void
 454 tp_call_get_property (GObject *object,
 455                       guint prop_id,
 456                       GValue *value,
 457                       GParamSpec *pspec)
 458 {
 459   EmpathyTpCallPriv *priv = GET_PRIV (object);
 460
 461   switch (prop_id)
 462     {
 463     case PROP_CHANNEL:
 464       g_value_set_object (value, priv->channel);
 465       break;
 466     case PROP_CONTACT:
 467       g_value_set_object (value, priv->contact);
 468       break;
 469     case PROP_IS_INCOMING:
 470       g_value_set_boolean (value, priv->is_incoming);
 471       break;
 472     case PROP_STATUS:
 473       g_value_set_uint (value, priv->status);
 474       break;
 475     case PROP_AUDIO_STREAM:
 476       g_value_set_pointer (value, priv->audio);
 477       break;
 478     case PROP_VIDEO_STREAM:
 479       g_value_set_pointer (value, priv->video);
 480       break;
 481     default:
 482       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 483       break;
 484   }
 485 }
 486
 487 static void
 488 empathy_tp_call_class_init (EmpathyTpCallClass *klass)
 489 {
 490   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 491
 492   object_class->constructor = tp_call_constructor;
 493   object_class->dispose = tp_call_dispose;
 494   object_class->finalize = tp_call_finalize;
 495   object_class->set_property = tp_call_set_property;
 496   object_class->get_property = tp_call_get_property;
 497
 498   g_type_class_add_private (klass, sizeof (EmpathyTpCallPriv));
 499
 500   g_object_class_install_property (object_class, PROP_CHANNEL,
 501       g_param_spec_object ("channel", "channel", "channel",
 502       TP_TYPE_CHANNEL,
 503       G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE |
 504       G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 505   g_object_class_install_property (object_class, PROP_CONTACT,
 506       g_param_spec_object ("contact", "Call contact", "Call contact",
 507       EMPATHY_TYPE_CONTACT,
 508       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 509   g_object_class_install_property (object_class, PROP_IS_INCOMING,
 510       g_param_spec_boolean ("is-incoming", "Is media stream incoming",
 511       "Is media stream incoming", FALSE, G_PARAM_READABLE |
 512       G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 513   g_object_class_install_property (object_class, PROP_STATUS,
 514       g_param_spec_uint ("status", "Call status",
 515       "Call status", 0, 255, 0, G_PARAM_READABLE | G_PARAM_STATIC_NICK |
 516       G_PARAM_STATIC_BLURB));
 517   g_object_class_install_property (object_class, PROP_AUDIO_STREAM,
 518       g_param_spec_pointer ("audio-stream", "Audio stream data",
 519       "Audio stream data",
 520       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 521   g_object_class_install_property (object_class, PROP_VIDEO_STREAM,
 522       g_param_spec_pointer ("video-stream", "Video stream data",
 523       "Video stream data",
 524       G_PARAM_READABLE | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB));
 525 }
 526
 527 static void
 528 empathy_tp_call_init (EmpathyTpCall *call)
 529 {
 530   EmpathyTpCallPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (call,
 531     EMPATHY_TYPE_TP_CALL, EmpathyTpCallPriv);
 532
 533   call->priv = priv;
 534   priv->status = EMPATHY_TP_CALL_STATUS_READYING;
 535   priv->contact = NULL;
 536   priv->audio = g_slice_new0 (EmpathyTpCallStream);
 537   priv->video = g_slice_new0 (EmpathyTpCallStream);
 538   priv->audio->exists = FALSE;
 539   priv->video->exists = FALSE;
 540 }
 541
 542 EmpathyTpCall *
 543 empathy_tp_call_new (TpChannel *channel)
 544 {
 545   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 546
 547   return g_object_new (EMPATHY_TYPE_TP_CALL,
 548       "channel", channel,
 549       NULL);
 550 }
 551
 552 void
 553 empathy_tp_call_accept_incoming_call (EmpathyTpCall *call)
 554 {
 555   EmpathyTpCallPriv *priv = GET_PRIV (call);
 556   TpHandle self_handle;
 557   GArray handles = {(gchar *) &self_handle, 1};
 558
 559   g_return_if_fail (EMPATHY_IS_TP_CALL (call));
 560   g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_PENDING);
 561   g_return_if_fail (priv->is_incoming);
 562
 563   DEBUG ("Accepting incoming call");
 564
 565   self_handle = tp_channel_group_get_self_handle (priv->channel);
 566   tp_cli_channel_interface_group_call_add_members (priv->channel, -1,
 567       &handles, NULL, NULL, NULL, NULL, NULL);
 568 }
 569
 570 void
 571 empathy_tp_call_close (EmpathyTpCall *call)
 572 {
 573   EmpathyTpCallPriv *priv = GET_PRIV (call);
 574
 575   g_return_if_fail (EMPATHY_IS_TP_CALL (call));
 576
 577   if (priv->status == EMPATHY_TP_CALL_STATUS_CLOSED)
 578       return;
 579
 580   DEBUG ("Closing channel");
 581
 582   tp_cli_channel_call_close (priv->channel, -1,
 583       NULL, NULL, NULL, NULL);
 584
 585   priv->status = EMPATHY_TP_CALL_STATUS_CLOSED;
 586   g_object_notify (G_OBJECT (call), "status");
 587 }
 588
 589 void
 590 empathy_tp_call_request_video_stream_direction (EmpathyTpCall *call,
 591                                                 gboolean is_sending)
 592 {
 593   EmpathyTpCallPriv *priv = GET_PRIV (call);
 594   guint new_direction;
 595
 596   g_return_if_fail (EMPATHY_IS_TP_CALL (call));
 597   g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_ACCEPTED);
 598
 599   DEBUG ("Requesting video stream direction - is_sending: %d", is_sending);
 600
 601   if (!priv->video->exists)
 602     {
 603       if (is_sending)
 604           tp_call_request_streams_for_capabilities (call,
 605               EMPATHY_CAPABILITIES_VIDEO);
 606       return;
 607     }
 608
 609   if (is_sending)
 610       new_direction = priv->video->direction | TP_MEDIA_STREAM_DIRECTION_SEND;
 611   else
 612       new_direction = priv->video->direction & ~TP_MEDIA_STREAM_DIRECTION_SEND;
 613
 614   tp_cli_channel_type_streamed_media_call_request_stream_direction (priv->channel,
 615       -1, priv->video->id, new_direction,
 616       (tp_cli_channel_type_streamed_media_callback_for_request_stream_direction)
 617       tp_call_async_cb, NULL, NULL, G_OBJECT (call));
 618 }
 619
 620 void
 621 empathy_tp_call_start_tone (EmpathyTpCall *call, TpDTMFEvent event)
 622 {
 623   EmpathyTpCallPriv *priv = GET_PRIV (call);
 624
 625   g_return_if_fail (EMPATHY_IS_TP_CALL (call));
 626   g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_ACCEPTED);
 627
 628   if (!priv->audio->exists)
 629       return;
 630
 631   tp_cli_channel_interface_dtmf_call_start_tone (priv->channel, -1,
 632       priv->audio->id, event,
 633       (tp_cli_channel_interface_dtmf_callback_for_start_tone) tp_call_async_cb,
 634       "starting tone", NULL, G_OBJECT (call));
 635 }
 636
 637 void
 638 empathy_tp_call_stop_tone (EmpathyTpCall *call)
 639 {
 640   EmpathyTpCallPriv *priv = GET_PRIV (call);
 641
 642   g_return_if_fail (EMPATHY_IS_TP_CALL (call));
 643   g_return_if_fail (priv->status == EMPATHY_TP_CALL_STATUS_ACCEPTED);
 644
 645   if (!priv->audio->exists)
 646       return;
 647
 648   tp_cli_channel_interface_dtmf_call_stop_tone (priv->channel, -1,
 649       priv->audio->id,
 650       (tp_cli_channel_interface_dtmf_callback_for_stop_tone) tp_call_async_cb,
 651       "stoping tone", NULL, G_OBJECT (call));
 652 }
 653
 654 gboolean
 655 empathy_tp_call_has_dtmf (EmpathyTpCall *call)
 656 {
 657   EmpathyTpCallPriv *priv = GET_PRIV (call);
 658
 659   g_return_val_if_fail (EMPATHY_IS_TP_CALL (call), FALSE);
 660
 661   return tp_proxy_has_interface_by_id (priv->channel,
 662       TP_IFACE_QUARK_CHANNEL_INTERFACE_DTMF);
 663 }
 664