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
  36 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  37 #include <libempathy/empathy-debug.h>
  38
  39 G_DEFINE_TYPE(EmpathyStreamedMediaFactory, empathy_streamed_media_factory, G_TYPE_OBJECT)
  40
  41 static void handle_channels_cb (TpSimpleHandler *handler,
  42     TpAccount *account,
  43     TpConnection *connection,
  44     GList *channels,
  45     GList *requests_satisfied,
  46     gint64 user_action_time,
  47     TpHandleChannelsContext *context,
  48     gpointer user_data);
  49
  50 /* signal enum */
  51 enum
  52 {
  53     NEW_STREAMED_MEDIA_HANDLER,
  54     LAST_SIGNAL
  55 };
  56
  57 static guint signals[LAST_SIGNAL] = {0};
  58
  59 /* private structure */
  60 typedef struct {
  61   TpBaseClient *handler;
  62   gboolean dispose_has_run;
  63 } EmpathyStreamedMediaFactoryPriv;
  64
  65 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyStreamedMediaFactory)
  66
  67 static GObject *call_factory = NULL;
  68
  69 static void
  70 empathy_streamed_media_factory_init (EmpathyStreamedMediaFactory *obj)
  71 {
  72   EmpathyStreamedMediaFactoryPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
  73     EMPATHY_TYPE_STREAMED_MEDIA_FACTORY, EmpathyStreamedMediaFactoryPriv);
  74   TpAccountManager *am;
  75
  76   obj->priv = priv;
  77
  78   am = tp_account_manager_dup ();
  79
  80   priv->handler = tp_simple_handler_new_with_am (am, FALSE, FALSE,
  81       EMPATHY_AV_BUS_NAME_SUFFIX, FALSE, handle_channels_cb, obj, NULL);
  82
  83   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  84         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  85           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  86         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  87         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         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  94         NULL));
  95
  96   tp_base_client_take_handler_filter (priv->handler, tp_asv_new (
  97         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  98           TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
  99         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 100         TP_PROP_CHANNEL_TYPE_STREAMED_MEDIA_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 101         NULL));
 102
 103   tp_base_client_add_handler_capabilities_varargs (priv->handler,
 104     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
 105     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
 106     "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
 107     NULL);
 108
 109   g_object_unref (am);
 110 }
 111
 112 static GObject *
 113 empathy_streamed_media_factory_constructor (GType type, guint n_construct_params,
 114   GObjectConstructParam *construct_params)
 115 {
 116   g_return_val_if_fail (call_factory == NULL, NULL);
 117
 118   call_factory = G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->constructor
 119           (type, n_construct_params, construct_params);
 120   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 121
 122   return call_factory;
 123 }
 124
 125 static void
 126 empathy_streamed_media_factory_finalize (GObject *object)
 127 {
 128   /* free any data held directly by the object here */
 129
 130   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize)
 131     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->finalize (object);
 132 }
 133
 134 static void
 135 empathy_streamed_media_factory_dispose (GObject *object)
 136 {
 137   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (object);
 138
 139   if (priv->dispose_has_run)
 140     return;
 141
 142   priv->dispose_has_run = TRUE;
 143
 144   tp_clear_object (&priv->handler);
 145
 146   if (G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose)
 147     G_OBJECT_CLASS (empathy_streamed_media_factory_parent_class)->dispose (object);
 148 }
 149
 150 static void
 151 empathy_streamed_media_factory_class_init (
 152   EmpathyStreamedMediaFactoryClass *empathy_streamed_media_factory_class)
 153 {
 154   GObjectClass *object_class = G_OBJECT_CLASS (empathy_streamed_media_factory_class);
 155
 156   g_type_class_add_private (empathy_streamed_media_factory_class,
 157     sizeof (EmpathyStreamedMediaFactoryPriv));
 158
 159   object_class->constructor = empathy_streamed_media_factory_constructor;
 160   object_class->dispose = empathy_streamed_media_factory_dispose;
 161   object_class->finalize = empathy_streamed_media_factory_finalize;
 162
 163   signals[NEW_STREAMED_MEDIA_HANDLER] =
 164     g_signal_new ("new-streamed-media-handler",
 165       G_TYPE_FROM_CLASS (empathy_streamed_media_factory_class),
 166       G_SIGNAL_RUN_LAST, 0,
 167       NULL, NULL,
 168       g_cclosure_marshal_generic,
 169       G_TYPE_NONE,
 170       2, EMPATHY_TYPE_STREAMED_MEDIA_HANDLER, G_TYPE_BOOLEAN);
 171 }
 172
 173 EmpathyStreamedMediaFactory *
 174 empathy_streamed_media_factory_initialise (void)
 175 {
 176   g_return_val_if_fail (call_factory == NULL, NULL);
 177
 178   return EMPATHY_STREAMED_MEDIA_FACTORY (g_object_new (EMPATHY_TYPE_STREAMED_MEDIA_FACTORY, NULL));
 179 }
 180
 181 EmpathyStreamedMediaFactory *
 182 empathy_streamed_media_factory_get (void)
 183 {
 184   g_return_val_if_fail (call_factory != NULL, NULL);
 185
 186   return EMPATHY_STREAMED_MEDIA_FACTORY (call_factory);
 187 }
 188
 189 static void
 190 create_streamed_media_handler (EmpathyStreamedMediaFactory *factory,
 191   EmpathyTpStreamedMedia *call)
 192 {
 193   EmpathyStreamedMediaHandler *handler;
 194
 195   g_return_if_fail (factory != NULL);
 196
 197   handler = empathy_streamed_media_handler_new_for_channel (call);
 198
 199   g_signal_emit (factory, signals[NEW_STREAMED_MEDIA_HANDLER], 0,
 200     handler, FALSE);
 201
 202   g_object_unref (handler);
 203 }
 204
 205 static void
 206 call_status_changed_cb (EmpathyTpStreamedMedia *call,
 207     GParamSpec *spec,
 208     EmpathyStreamedMediaFactory *self)
 209 {
 210   if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 211     return;
 212
 213   create_streamed_media_handler (self, call);
 214
 215   g_signal_handlers_disconnect_by_func (call, call_status_changed_cb, self);
 216   g_object_unref (call);
 217 }
 218
 219 static void
 220 handle_channels_cb (TpSimpleHandler *handler,
 221     TpAccount *account,
 222     TpConnection *connection,
 223     GList *channels,
 224     GList *requests_satisfied,
 225     gint64 user_action_time,
 226     TpHandleChannelsContext *context,
 227     gpointer user_data)
 228 {
 229   EmpathyStreamedMediaFactory *self = user_data;
 230   GList *l;
 231
 232   for (l = channels; l != NULL; l = g_list_next (l))
 233     {
 234       TpChannel *channel = l->data;
 235       EmpathyTpStreamedMedia *call;
 236
 237       if (tp_proxy_get_invalidated (channel) != NULL)
 238         continue;
 239
 240       if (tp_channel_get_channel_type_id (channel) !=
 241           TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA)
 242         continue;
 243
 244       call = empathy_tp_streamed_media_new (account, channel);
 245
 246       if (empathy_tp_streamed_media_get_status (call) <= EMPATHY_TP_STREAMED_MEDIA_STATUS_READYING)
 247         {
 248           /* We have to wait that the TpStreamedMedia is ready as the
 249            * call-handler rely on it. */
 250           tp_g_signal_connect_object (call, "notify::status",
 251               G_CALLBACK (call_status_changed_cb), self, 0);
 252           continue;
 253         }
 254
 255       create_streamed_media_handler (self, call);
 256       g_object_unref (call);
 257     }
 258
 259   tp_handle_channels_context_accept (context);
 260 }
 261
 262 gboolean
 263 empathy_streamed_media_factory_register (EmpathyStreamedMediaFactory *self,
 264     GError **error)
 265 {
 266   EmpathyStreamedMediaFactoryPriv *priv = GET_PRIV (self);
 267
 268   return tp_base_client_register (priv->handler, error);
 269 }