libempathy/empathy-call-factory.c

   1 /*
   2  * empathy-call-factory.c - Source for EmpathyCallFactory
   3  * Copyright (C) 2008 Collabora Ltd.
   4  * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 #include <telepathy-glib/account-channel-request.h>
  26 #include <telepathy-glib/simple-handler.h>
  27 #include <telepathy-glib/interfaces.h>
  28 #include <telepathy-glib/util.h>
  29
  30 #include "empathy-dispatcher.h"
  31 #include "empathy-marshal.h"
  32 #include "empathy-call-factory.h"
  33 #include "empathy-utils.h"
  34
  35 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  36 #include <libempathy/empathy-debug.h>
  37
  38 G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, G_TYPE_OBJECT)
  39
  40 static void handle_channels_cb (TpSimpleHandler *handler,
  41     TpAccount *account,
  42     TpConnection *connection,
  43     GList *channels,
  44     GList *requests_satisfied,
  45     gint64 user_action_time,
  46     TpHandleChannelsContext *context,
  47     gpointer user_data);
  48
  49 /* signal enum */
  50 enum
  51 {
  52     NEW_CALL_HANDLER,
  53     LAST_SIGNAL
  54 };
  55
  56 static guint signals[LAST_SIGNAL] = {0};
  57
  58 /* private structure */
  59 typedef struct {
  60   TpBaseClient *handler;
  61   gboolean dispose_has_run;
  62 } EmpathyCallFactoryPriv;
  63
  64 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCallFactory)
  65
  66 static GObject *call_factory = NULL;
  67
  68 static void
  69 empathy_call_factory_init (EmpathyCallFactory *obj)
  70 {
  71   EmpathyCallFactoryPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
  72     EMPATHY_TYPE_CALL_FACTORY, EmpathyCallFactoryPriv);
  73   TpDBusDaemon *dbus;
  74   GError *error = NULL;
  75
  76   obj->priv = priv;
  77
  78   dbus = tp_dbus_daemon_dup (&error);
  79   if (dbus == NULL)
  80     {
  81       g_warning ("Failed to get TpDBusDaemon: %s", error->message);
  82       g_error_free (error);
  83       return;
  84     }
  85
  86   priv->handler = tp_simple_handler_new (dbus, FALSE, FALSE,
  87       "Empathy.AudioVideo", FALSE, handle_channels_cb, obj, NULL);
  88
  89   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  90         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  91           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  92         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  93         NULL));
  94
  95   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  96         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  97           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  98         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  99         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
 100         NULL));
 101
 102   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
 103         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 104           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 105         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 106         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 107         NULL));
 108
 109   tp_base_client_add_handler_capabilities_varargs (priv->handler,
 110     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
 111     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
 112     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
 113     NULL);
 114
 115   g_object_unref (dbus);
 116 }
 117
 118 static GObject *
 119 empathy_call_factory_constructor (GType type, guint n_construct_params,
 120   GObjectConstructParam *construct_params)
 121 {
 122   g_return_val_if_fail (call_factory == NULL, NULL);
 123
 124   call_factory = G_OBJECT_CLASS (empathy_call_factory_parent_class)->constructor
 125           (type, n_construct_params, construct_params);
 126   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 127
 128   return call_factory;
 129 }
 130
 131 static void
 132 empathy_call_factory_finalize (GObject *object)
 133 {
 134   /* free any data held directly by the object here */
 135
 136   if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize)
 137     G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize (object);
 138 }
 139
 140 static void
 141 empathy_call_factory_dispose (GObject *object)
 142 {
 143   EmpathyCallFactoryPriv *priv = GET_PRIV (object);
 144
 145   if (priv->dispose_has_run)
 146     return;
 147
 148   priv->dispose_has_run = TRUE;
 149
 150   tp_clear_object (&priv->handler);
 151
 152   if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose)
 153     G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose (object);
 154 }
 155
 156 static void
 157 empathy_call_factory_class_init (
 158   EmpathyCallFactoryClass *empathy_call_factory_class)
 159 {
 160   GObjectClass *object_class = G_OBJECT_CLASS (empathy_call_factory_class);
 161
 162   g_type_class_add_private (empathy_call_factory_class,
 163     sizeof (EmpathyCallFactoryPriv));
 164
 165   object_class->constructor = empathy_call_factory_constructor;
 166   object_class->dispose = empathy_call_factory_dispose;
 167   object_class->finalize = empathy_call_factory_finalize;
 168
 169   signals[NEW_CALL_HANDLER] =
 170     g_signal_new ("new-call-handler",
 171       G_TYPE_FROM_CLASS (empathy_call_factory_class),
 172       G_SIGNAL_RUN_LAST, 0,
 173       NULL, NULL,
 174       _empathy_marshal_VOID__OBJECT_BOOLEAN,
 175       G_TYPE_NONE,
 176       2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
 177 }
 178
 179 EmpathyCallFactory *
 180 empathy_call_factory_initialise (void)
 181 {
 182   g_return_val_if_fail (call_factory == NULL, NULL);
 183
 184   return EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY, NULL));
 185 }
 186
 187 EmpathyCallFactory *
 188 empathy_call_factory_get (void)
 189 {
 190   g_return_val_if_fail (call_factory != NULL, NULL);
 191
 192   return EMPATHY_CALL_FACTORY (call_factory);
 193 }
 194
 195 GHashTable *
 196 empathy_call_factory_create_request (EmpathyContact *contact,
 197     gboolean initial_audio,
 198     gboolean initial_video)
 199 {
 200   return tp_asv_new (
 201       TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 202         TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 203       TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 204       TP_PROP_CHANNEL_TARGET_HANDLE, G_TYPE_UINT,
 205         empathy_contact_get_handle (contact),
 206       TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN,
 207         initial_audio,
 208       TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN,
 209         initial_video,
 210       NULL);
 211 }
 212
 213 static void
 214 create_media_channel_cb (GObject *source,
 215     GAsyncResult *result,
 216     gpointer user_data)
 217 {
 218   GError *error = NULL;
 219
 220   if (!tp_account_channel_request_create_channel_finish (
 221         TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error))
 222     {
 223       DEBUG ("Failed to create media channel: %s", error->message);
 224       g_error_free (error);
 225     }
 226 }
 227
 228 /**
 229  * empathy_call_factory_new_call_with_streams:
 230  * @factory: an #EmpathyCallFactory
 231  * @contact: an #EmpathyContact
 232  * @initial_audio: if %TRUE the call will be started with audio
 233  * @initial_video: if %TRUE the call will be started with video
 234  *
 235  * Initiate a new call with @contact.
 236  */
 237 void
 238 empathy_call_factory_new_call_with_streams (EmpathyContact *contact,
 239     gboolean initial_audio,
 240     gboolean initial_video,
 241     gint64 timestamp,
 242     gpointer user_data)
 243 {
 244   GHashTable *request;
 245   TpAccount *account;
 246   TpAccountChannelRequest *req;
 247
 248   request = empathy_call_factory_create_request (contact, initial_audio,
 249       initial_video);
 250
 251   account = empathy_contact_get_account (contact);
 252
 253   req = tp_account_channel_request_new (account, request, timestamp);
 254
 255   tp_account_channel_request_create_channel_async (req, NULL, NULL,
 256       create_media_channel_cb, NULL);
 257
 258   g_hash_table_unref (request);
 259   g_object_unref (req);
 260 }
 261
 262 static void
 263 create_call_handler (EmpathyCallFactory *factory,
 264   EmpathyTpCall *call)
 265 {
 266   EmpathyCallHandler *handler;
 267
 268   g_return_if_fail (factory != NULL);
 269
 270   handler = empathy_call_handler_new_for_channel (call);
 271
 272   g_signal_emit (factory, signals[NEW_CALL_HANDLER], 0,
 273     handler, FALSE);
 274
 275   g_object_unref (handler);
 276 }
 277
 278 static void
 279 call_status_changed_cb (EmpathyTpCall *call,
 280     GParamSpec *spec,
 281     EmpathyCallFactory *self)
 282 {
 283   if (empathy_tp_call_get_status (call) <= EMPATHY_TP_CALL_STATUS_READYING)
 284     return;
 285
 286   create_call_handler (self, call);
 287
 288   g_signal_handlers_disconnect_by_func (call, call_status_changed_cb, self);
 289   g_object_unref (call);
 290 }
 291
 292 static void
 293 handle_channels_cb (TpSimpleHandler *handler,
 294     TpAccount *account,
 295     TpConnection *connection,
 296     GList *channels,
 297     GList *requests_satisfied,
 298     gint64 user_action_time,
 299     TpHandleChannelsContext *context,
 300     gpointer user_data)
 301 {
 302   EmpathyCallFactory *self = user_data;
 303   GList *l;
 304
 305   for (l = channels; l != NULL; l = g_list_next (l))
 306     {
 307       TpChannel *channel = l->data;
 308       EmpathyTpCall *call;
 309
 310       if (tp_proxy_get_invalidated (channel) != NULL)
 311         continue;
 312
 313       if (tp_channel_get_channel_type_id (channel) !=
 314           TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA)
 315         continue;
 316
 317       call = empathy_tp_call_new (account, channel);
 318
 319       if (empathy_tp_call_get_status (call) <= EMPATHY_TP_CALL_STATUS_READYING)
 320         {
 321           /* We have to wait that the TpCall is ready as the
 322            * call-handler rely on it. */
 323           tp_g_signal_connect_object (call, "notify::status",
 324               G_CALLBACK (call_status_changed_cb), self, 0);
 325           continue;
 326         }
 327
 328       create_call_handler (self, call);
 329       g_object_unref (call);
 330     }
 331
 332   tp_handle_channels_context_accept (context);
 333 }
 334
 335 gboolean
 336 empathy_call_factory_register (EmpathyCallFactory *self,
 337     GError **error)
 338 {
 339   EmpathyCallFactoryPriv *priv = GET_PRIV (self);
 340
 341   return tp_base_client_register (priv->handler, error);
 342 }