src/empathy-streamed-media-factory.c

   1 /*
   2  * empathy-streamed-media-factory.c - Source for EmpathyStreamedMediaFactory
   3  * Copyright (C) 2008-2011 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 <libempathy/empathy-request-util.h>
  31 #include <libempathy/empathy-utils.h>
  32
  33 #include "empathy-streamed-media-factory.h"
  34 #include "empathy-streamed-media-handler.h"
  35 #include "src-marshal.h"
  36
  37 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  38 #include <libempathy/empathy-debug.h>
  39
  40 G_DEFINE_TYPE(EmpathyStreamedMediaFactory, empathy_streamed_media_factory, G_TYPE_OBJECT)
  41
  42 static void handle_channels_cb (TpSimpleHandler *handler,
  43     TpAccount *account,
  44     TpConnection *connection,
  45     GList *channels,
  46     GList *requests_satisfied,
  47     gint64 user_action_time,
  48     TpHandleChannelsContext *context,
  49     gpointer user_data);
  50
  51 /* signal enum */
  52 enum
  53 {
  54     NEW_STREAMED_MEDIA_HANDLER,
  55     LAST_SIGNAL
  56 };
  57
  58 static guint signals[LAST_SIGNAL] = {0};
  59
  60 /* private structure */
  61 typedef struct {
  62   TpBaseClient *handler;
  63   gboolean dispose_has_run;
  64 } EmpathyStreamedMediaFactoryPriv;
  65
  66 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyStreamedMediaFactory)
  67
  68 static GObject *call_factory = NULL;
  69
  70 static void
  71 empathy_streamed_media_factory_init (EmpathyStreamedMediaFactory *obj)
  72 {
  73   EmpathyStreamedMediaFactoryPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
  74     EMPATHY_TYPE_STREAMED_MEDIA_FACTORY, EmpathyStreamedMediaFactoryPriv);
  75   TpDBusDaemon *dbus;
  76   GError *error = NULL;
  77
  78   obj->priv = priv;
  79
  80   dbus = tp_dbus_daemon_dup (&error);
  81   if (dbus == NULL)
  82     {
  83       g_warning ("Failed to get TpDBusDaemon: %s", error->message);
  84       g_error_free (error);
  85       return;
  86     }
  87
  88   priv->handler = tp_simple_handler_new (dbus, FALSE, FALSE,
  89       EMPATHY_AV_BUS_NAME_SUFFIX, FALSE, handle_channels_cb, obj, 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         NULL));
  96
  97   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  98         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  99           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 100         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 101         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
 102         NULL));
 103
 104   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
 105         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 106           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 107         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 108         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 109         NULL));
 110
 111   tp_base_client_add_handler_capabilities_varargs (priv->handler,
 112     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
 113     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
 114     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
 115     NULL);
 116
 117   g_object_unref (dbus);
 118 }
 119
 120 static GObject *
 121 empathy_streamed_media_factory_constructor (GType type, guint n_construct_params,
 122   GObjectConstructParam *construct_params)
 123 {
 124   g_return_val_if_fail (call_factory == NULL, NULL);
 125
 126   call_factory = G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->constructor
 127           (type, n_construct_params, construct_params);
 128   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 129
 130   return call_factory;
 131 }
 132
 133 static void
 134 empathy_streamed_media_factory_finalize (GObject *object)
 135 {
 136   /* free any data held directly by the object here */
 137
 138   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize)
 139     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize (object);
 140 }
 141
 142 static void
 143 empathy_streamed_media_factory_dispose (GObject *object)
 144 {
 145   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (object);
 146
 147   if (priv->dispose_has_run)
 148     return;
 149
 150   priv->dispose_has_run = TRUE;
 151
 152   tp_clear_object (&priv->handler);
 153
 154   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose)
 155     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose (object);
 156 }
 157
 158 static void
 159 empathy_streamed_media_factory_class_init (
 160   EmpathyStreamedMediaFactoryClass *empathy_streamed_media_factory_class)
 161 {
 162   GObjectClass *object_class = G_OBJECT_CLASS (empathy_streamed_media_factory_class);
 163
 164   g_type_class_add_private (empathy_streamed_media_factory_class,
 165     sizeof (EmpathyStreamedMediaFactoryPriv));
 166
 167   object_class->constructor = empathy_streamed_media_factory_constructor;
 168   object_class->dispose = empathy_streamed_media_factory_dispose;
 169   object_class->finalize = empathy_streamed_media_factory_finalize;
 170
 171   signals[NEW_STREAMED_MEDIA_HANDLER] =
 172     g_signal_new ("new-streamed-media-handler",
 173       G_TYPE_FROM_CLASS (empathy_streamed_media_factory_class),
 174       G_SIGNAL_RUN_LAST, 0,
 175       NULL, NULL,
 176       _src_marshal_VOID__OBJECT_BOOLEAN,
 177       G_TYPE_NONE,
 178       2, EMPATHY_TYPE_STREAMED_MEDIA_HANDLER, G_TYPE_BOOLEAN);
 179 }
 180
 181 EmpathyStreamedMediaFactory *
 182 empathy_streamed_media_factory_initialise (void)
 183 {
 184   g_return_val_if_fail (call_factory == NULL, NULL);
 185
 186   return EMPATHY_STREAMED_MEDIA_FACTORY (g_object_new (EMPATHY_TYPE_STREAMED_MEDIA_FACTORY, NULL));
 187 }
 188
 189 EmpathyStreamedMediaFactory *
 190 empathy_streamed_media_factory_get (void)
 191 {
 192   g_return_val_if_fail (call_factory != NULL, NULL);
 193
 194   return EMPATHY_STREAMED_MEDIA_FACTORY (call_factory);
 195 }
 196
 197 static void
 198 create_streamed_media_handler (EmpathyStreamedMediaFactory *factory,
 199   EmpathyTpStreamedMedia *call)
 200 {
 201   EmpathyStreamedMediaHandler *handler;
 202
 203   g_return_if_fail (factory != NULL);
 204
 205   handler = empathy_streamed_media_handler_new_for_channel (call);
 206
 207   g_signal_emit (factory, signals[NEW_STREAMED_MEDIA_HANDLER], 0,
 208     handler, FALSE);
 209
 210   g_object_unref (handler);
 211 }
 212
 213 static void
 214 call_status_changed_cb (EmpathyTpStreamedMedia *call,
 215     GParamSpec *spec,
 216     EmpathyStreamedMediaFactory *self)
 217 {
 218   if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 219     return;
 220
 221   create_streamed_media_handler (self, call);
 222
 223   g_signal_handlers_disconnect_by_func (call, call_status_changed_cb, self);
 224   g_object_unref (call);
 225 }
 226
 227 static void
 228 handle_channels_cb (TpSimpleHandler *handler,
 229     TpAccount *account,
 230     TpConnection *connection,
 231     GList *channels,
 232     GList *requests_satisfied,
 233     gint64 user_action_time,
 234     TpHandleChannelsContext *context,
 235     gpointer user_data)
 236 {
 237   EmpathyStreamedMediaFactory *self = user_data;
 238   GList *l;
 239
 240   for (l = channels; l != NULL; l = g_list_next (l))
 241     {
 242       TpChannel *channel = l->data;
 243       EmpathyTpStreamedMedia *call;
 244
 245       if (tp_proxy_get_invalidated (channel) != NULL)
 246         continue;
 247
 248       if (tp_channel_get_channel_type_id (channel) !=
 249           TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA)
 250         continue;
 251
 252       call = empathy_tp_streamed_media_new (account, channel);
 253
 254       if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 255         {
 256           /* We have to wait that the TpStreamedMedia is ready as the
 257            * call-handler rely on it. */
 258           tp_g_signal_connect_object (call, "notify::status",
 259               G_CALLBACK (call_status_changed_cb), self, 0);
 260           continue;
 261         }
 262
 263       create_streamed_media_handler (self, call);
 264       g_object_unref (call);
 265     }
 266
 267   tp_handle_channels_context_accept (context);
 268 }
 269
 270 gboolean
 271 empathy_streamed_media_factory_register (EmpathyStreamedMediaFactory *self,
 272     GError **error)
 273 {
 274   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (self);
 275
 276   return tp_base_client_register (priv->handler, error);
 277 }