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 #include "config.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 #include <telepathy-glib/account-channel-request.h>
  27 #include <telepathy-glib/simple-handler.h>
  28 #include <telepathy-glib/interfaces.h>
  29 #include <telepathy-glib/util.h>
  30
  31 #include <libempathy/empathy-request-util.h>
  32 #include <libempathy/empathy-utils.h>
  33
  34 #include "empathy-streamed-media-factory.h"
  35 #include "empathy-streamed-media-handler.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   TpAccountManager *am;
  76
  77   obj->priv = priv;
  78
  79   am = tp_account_manager_dup ();
  80
  81   priv->handler = tp_simple_handler_new_with_am (am, FALSE, FALSE,
  82       EMPATHY_AV_BUS_NAME_SUFFIX, FALSE, handle_channels_cb, obj, NULL);
  83
  84   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  85         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  86           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  87         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  88         NULL));
  89
  90   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  91         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  92           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  93         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  94         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  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_VIDEO, G_TYPE_BOOLEAN, TRUE,
 102         NULL));
 103
 104   tp_base_client_add_handler_capabilities_varargs (priv->handler,
 105     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
 106     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
 107     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
 108     NULL);
 109
 110   g_object_unref (am);
 111 }
 112
 113 static GObject *
 114 empathy_streamed_media_factory_constructor (GType type, guint n_construct_params,
 115   GObjectConstructParam *construct_params)
 116 {
 117   g_return_val_if_fail (call_factory == NULL, NULL);
 118
 119   call_factory = G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->constructor
 120           (type, n_construct_params, construct_params);
 121   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 122
 123   return call_factory;
 124 }
 125
 126 static void
 127 empathy_streamed_media_factory_finalize (GObject *object)
 128 {
 129   /* free any data held directly by the object here */
 130
 131   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize)
 132     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize (object);
 133 }
 134
 135 static void
 136 empathy_streamed_media_factory_dispose (GObject *object)
 137 {
 138   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (object);
 139
 140   if (priv->dispose_has_run)
 141     return;
 142
 143   priv->dispose_has_run = TRUE;
 144
 145   tp_clear_object (&priv->handler);
 146
 147   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose)
 148     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose (object);
 149 }
 150
 151 static void
 152 empathy_streamed_media_factory_class_init (
 153   EmpathyStreamedMediaFactoryClass *empathy_streamed_media_factory_class)
 154 {
 155   GObjectClass *object_class = G_OBJECT_CLASS (empathy_streamed_media_factory_class);
 156
 157   g_type_class_add_private (empathy_streamed_media_factory_class,
 158     sizeof (EmpathyStreamedMediaFactoryPriv));
 159
 160   object_class->constructor = empathy_streamed_media_factory_constructor;
 161   object_class->dispose = empathy_streamed_media_factory_dispose;
 162   object_class->finalize = empathy_streamed_media_factory_finalize;
 163
 164   signals[NEW_STREAMED_MEDIA_HANDLER] =
 165     g_signal_new ("new-streamed-media-handler",
 166       G_TYPE_FROM_CLASS (empathy_streamed_media_factory_class),
 167       G_SIGNAL_RUN_LAST, 0,
 168       NULL, NULL,
 169       g_cclosure_marshal_generic,
 170       G_TYPE_NONE,
 171       2, EMPATHY_TYPE_STREAMED_MEDIA_HANDLER, G_TYPE_BOOLEAN);
 172 }
 173
 174 EmpathyStreamedMediaFactory *
 175 empathy_streamed_media_factory_initialise (void)
 176 {
 177   g_return_val_if_fail (call_factory == NULL, NULL);
 178
 179   return EMPATHY_STREAMED_MEDIA_FACTORY (g_object_new (EMPATHY_TYPE_STREAMED_MEDIA_FACTORY, NULL));
 180 }
 181
 182 EmpathyStreamedMediaFactory *
 183 empathy_streamed_media_factory_get (void)
 184 {
 185   g_return_val_if_fail (call_factory != NULL, NULL);
 186
 187   return EMPATHY_STREAMED_MEDIA_FACTORY (call_factory);
 188 }
 189
 190 static void
 191 create_streamed_media_handler (EmpathyStreamedMediaFactory *factory,
 192   EmpathyTpStreamedMedia *call)
 193 {
 194   EmpathyStreamedMediaHandler *handler;
 195
 196   g_return_if_fail (factory != NULL);
 197
 198   handler = empathy_streamed_media_handler_new_for_channel (call);
 199
 200   g_signal_emit (factory, signals[NEW_STREAMED_MEDIA_HANDLER], 0,
 201     handler, FALSE);
 202
 203   g_object_unref (handler);
 204 }
 205
 206 static void
 207 call_status_changed_cb (EmpathyTpStreamedMedia *call,
 208     GParamSpec *spec,
 209     EmpathyStreamedMediaFactory *self)
 210 {
 211   if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 212     return;
 213
 214   create_streamed_media_handler (self, call);
 215
 216   g_signal_handlers_disconnect_by_func (call, call_status_changed_cb, self);
 217   g_object_unref (call);
 218 }
 219
 220 static void
 221 handle_channels_cb (TpSimpleHandler *handler,
 222     TpAccount *account,
 223     TpConnection *connection,
 224     GList *channels,
 225     GList *requests_satisfied,
 226     gint64 user_action_time,
 227     TpHandleChannelsContext *context,
 228     gpointer user_data)
 229 {
 230   EmpathyStreamedMediaFactory *self = user_data;
 231   GList *l;
 232
 233   for (l = channels; l != NULL; l = g_list_next (l))
 234     {
 235       TpChannel *channel = l->data;
 236       EmpathyTpStreamedMedia *call;
 237
 238       if (tp_proxy_get_invalidated (channel) != NULL)
 239         continue;
 240
 241       if (tp_channel_get_channel_type_id (channel) !=
 242           TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA)
 243         continue;
 244
 245       call = empathy_tp_streamed_media_new (account, channel);
 246
 247       if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 248         {
 249           /* We have to wait that the TpStreamedMedia is ready as the
 250            * call-handler rely on it. */
 251           tp_g_signal_connect_object (call, "notify::status",
 252               G_CALLBACK (call_status_changed_cb), self, 0);
 253           continue;
 254         }
 255
 256       create_streamed_media_handler (self, call);
 257       g_object_unref (call);
 258     }
 259
 260   tp_handle_channels_context_accept (context);
 261 }
 262
 263 gboolean
 264 empathy_streamed_media_factory_register (EmpathyStreamedMediaFactory *self,
 265     GError **error)
 266 {
 267   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (self);
 268
 269   return tp_base_client_register (priv->handler, error);
 270 }