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/simple-handler.h>
  26 #include <telepathy-glib/interfaces.h>
  27 #include <telepathy-glib/util.h>
  28
  29 #include "empathy-dispatcher.h"
  30 #include "empathy-marshal.h"
  31 #include "empathy-call-factory.h"
  32 #include "empathy-utils.h"
  33
  34 G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, G_TYPE_OBJECT)
  35
  36 static void handle_channels_cb (TpSimpleHandler *handler,
  37     TpAccount *account,
  38     TpConnection *connection,
  39     GList *channels,
  40     GList *requests_satisfied,
  41     gint64 user_action_time,
  42     TpHandleChannelsContext *context,
  43     gpointer user_data);
  44
  45 /* signal enum */
  46 enum
  47 {
  48     NEW_CALL_HANDLER,
  49     LAST_SIGNAL
  50 };
  51
  52 static guint signals[LAST_SIGNAL] = {0};
  53
  54 /* private structure */
  55 typedef struct {
  56   TpBaseClient *handler;
  57   gboolean dispose_has_run;
  58 } EmpathyCallFactoryPriv;
  59
  60 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCallFactory)
  61
  62 static GObject *call_factory = NULL;
  63
  64 static void
  65 empathy_call_factory_init (EmpathyCallFactory *obj)
  66 {
  67   EmpathyCallFactoryPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
  68     EMPATHY_TYPE_CALL_FACTORY, EmpathyCallFactoryPriv);
  69   TpDBusDaemon *dbus;
  70   GError *error = NULL;
  71
  72   obj->priv = priv;
  73
  74   dbus = tp_dbus_daemon_dup (&error);
  75   if (dbus == NULL)
  76     {
  77       g_warning ("Failed to get TpDBusDaemon: %s", error->message);
  78       g_error_free (error);
  79       return;
  80     }
  81
  82   priv->handler = tp_simple_handler_new (dbus, FALSE, FALSE,
  83       "Empathy.AudioVideo", FALSE, handle_channels_cb, obj, NULL);
  84
  85   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  86         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  87           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  88         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  89         NULL));
  90
  91   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  92         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  93           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  94         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  95         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  96         NULL));
  97
  98   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  99         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 100           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 101         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 102         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 103         NULL));
 104
 105   tp_base_client_add_handler_capabilities_varargs (priv->handler,
 106     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
 107     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
 108     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
 109     NULL);
 110
 111   g_object_unref (dbus);
 112 }
 113
 114 static GObject *
 115 empathy_call_factory_constructor (GType type, guint n_construct_params,
 116   GObjectConstructParam *construct_params)
 117 {
 118   g_return_val_if_fail (call_factory == NULL, NULL);
 119
 120   call_factory = G_OBJECT_CLASS (empathy_call_factory_parent_class)->constructor
 121           (type, n_construct_params, construct_params);
 122   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 123
 124   return call_factory;
 125 }
 126
 127 static void
 128 empathy_call_factory_finalize (GObject *object)
 129 {
 130   /* free any data held directly by the object here */
 131
 132   if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize)
 133     G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize (object);
 134 }
 135
 136 static void
 137 empathy_call_factory_dispose (GObject *object)
 138 {
 139   EmpathyCallFactoryPriv *priv = GET_PRIV (object);
 140
 141   if (priv->dispose_has_run)
 142     return;
 143
 144   priv->dispose_has_run = TRUE;
 145
 146   /* release any references held by the object here */
 147
 148   if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose)
 149     G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose (object);
 150 }
 151
 152 static void
 153 empathy_call_factory_class_init (
 154   EmpathyCallFactoryClass *empathy_call_factory_class)
 155 {
 156   GObjectClass *object_class = G_OBJECT_CLASS (empathy_call_factory_class);
 157
 158   g_type_class_add_private (empathy_call_factory_class,
 159     sizeof (EmpathyCallFactoryPriv));
 160
 161   object_class->constructor = empathy_call_factory_constructor;
 162   object_class->dispose = empathy_call_factory_dispose;
 163   object_class->finalize = empathy_call_factory_finalize;
 164
 165   signals[NEW_CALL_HANDLER] =
 166     g_signal_new ("new-call-handler",
 167       G_TYPE_FROM_CLASS (empathy_call_factory_class),
 168       G_SIGNAL_RUN_LAST, 0,
 169       NULL, NULL,
 170       _empathy_marshal_VOID__OBJECT_BOOLEAN,
 171       G_TYPE_NONE,
 172       2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
 173 }
 174
 175 EmpathyCallFactory *
 176 empathy_call_factory_initialise (void)
 177 {
 178   g_return_val_if_fail (call_factory == NULL, NULL);
 179
 180   return EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY, NULL));
 181 }
 182
 183 EmpathyCallFactory *
 184 empathy_call_factory_get (void)
 185 {
 186   g_return_val_if_fail (call_factory != NULL, NULL);
 187
 188   return EMPATHY_CALL_FACTORY (call_factory);
 189 }
 190
 191 /**
 192  * empathy_call_factory_new_call_with_streams:
 193  * @factory: an #EmpathyCallFactory
 194  * @contact: an #EmpathyContact
 195  * @initial_audio: if %TRUE the call will be started with audio
 196  * @initial_video: if %TRUE the call will be started with video
 197  *
 198  * Initiate a new call with @contact.
 199  */
 200 void
 201 empathy_call_factory_new_call_with_streams (EmpathyContact *contact,
 202     gboolean initial_audio,
 203     gboolean initial_video,
 204     gint64 timestamp,
 205     EmpathyDispatcherRequestCb callback,
 206     gpointer user_data)
 207 {
 208   EmpathyDispatcher *dispatcher;
 209   GHashTable *request;
 210
 211   request = tp_asv_new (
 212       TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 213         TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 214       TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 215       TP_PROP_CHANNEL_TARGET_HANDLE, G_TYPE_UINT,
 216         empathy_contact_get_handle (contact),
 217       TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN,
 218         initial_audio,
 219       TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN,
 220         initial_video,
 221       NULL);
 222
 223   dispatcher = empathy_dispatcher_dup_singleton ();
 224
 225   empathy_dispatcher_create_channel (dispatcher,
 226       empathy_contact_get_connection (contact), request, timestamp, callback,
 227       user_data);
 228
 229   g_object_unref (dispatcher);
 230 }
 231
 232 static void
 233 create_call_handler (EmpathyCallFactory *factory,
 234   EmpathyTpCall *call)
 235 {
 236   EmpathyCallHandler *handler;
 237
 238   g_return_if_fail (factory != NULL);
 239
 240   handler = empathy_call_handler_new_for_channel (call);
 241
 242   g_signal_emit (factory, signals[NEW_CALL_HANDLER], 0,
 243     handler, FALSE);
 244
 245   g_object_unref (handler);
 246 }
 247
 248 static void
 249 call_status_changed_cb (EmpathyTpCall *call,
 250     GParamSpec *spec,
 251     EmpathyCallFactory *self)
 252 {
 253   if (empathy_tp_call_get_status (call) <= EMPATHY_TP_CALL_STATUS_READYING)
 254     return;
 255
 256   create_call_handler (self, call);
 257
 258   g_signal_handlers_disconnect_by_func (call, call_status_changed_cb, self);
 259   g_object_unref (call);
 260 }
 261
 262 static void
 263 handle_channels_cb (TpSimpleHandler *handler,
 264     TpAccount *account,
 265     TpConnection *connection,
 266     GList *channels,
 267     GList *requests_satisfied,
 268     gint64 user_action_time,
 269     TpHandleChannelsContext *context,
 270     gpointer user_data)
 271 {
 272   EmpathyCallFactory *self = user_data;
 273   GList *l;
 274
 275   for (l = channels; l != NULL; l = g_list_next (l))
 276     {
 277       TpChannel *channel = l->data;
 278       EmpathyTpCall *call;
 279
 280       if (tp_proxy_get_invalidated (channel) != NULL)
 281         continue;
 282
 283       if (tp_channel_get_channel_type_id (channel) !=
 284           TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA)
 285         continue;
 286
 287       call = empathy_tp_call_new (channel);
 288
 289       if (empathy_tp_call_get_status (call) <= EMPATHY_TP_CALL_STATUS_READYING)
 290         {
 291           /* We have to wait that the TpCall is ready as the
 292            * call-handler rely on it. */
 293           tp_g_signal_connect_object (call, "notify::status",
 294               G_CALLBACK (call_status_changed_cb), self, 0);
 295           continue;
 296         }
 297
 298       create_call_handler (self, call);
 299       g_object_unref (call);
 300     }
 301
 302   tp_handle_channels_context_accept (context);
 303 }
 304
 305 gboolean
 306 empathy_call_factory_register (EmpathyCallFactory *self,
 307     GError **error)
 308 {
 309   EmpathyCallFactoryPriv *priv = GET_PRIV (self);
 310
 311   return tp_base_client_register (priv->handler, error);
 312 }