src/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 #include "config.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 #include <telepathy-glib/telepathy-glib.h>
  27
  28 #include <libempathy/empathy-client-factory.h>
  29 #include <libempathy/empathy-request-util.h>
  30 #include <libempathy/empathy-utils.h>
  31
  32 #include "empathy-call-factory.h"
  33 #include "empathy-call-handler.h"
  34
  35 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  36 #include <libempathy/empathy-debug.h>
  37
  38 G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, TP_TYPE_BASE_CLIENT)
  39
  40 static void handle_channels (TpBaseClient *client,
  41     TpAccount *account,
  42     TpConnection *connection,
  43     GList *channels,
  44     GList *requests_satisfied,
  45     gint64 user_action_time,
  46     TpHandleChannelsContext *context);
  47
  48 static void approve_channels (TpBaseClient *client,
  49     TpAccount *account,
  50     TpConnection *connection,
  51     GList *channels,
  52     TpChannelDispatchOperation *dispatch_operation,
  53     TpAddDispatchOperationContext *context);
  54
  55 /* signal enum */
  56 enum
  57 {
  58     NEW_CALL_HANDLER,
  59     INCOMING_CALL,
  60     LAST_SIGNAL
  61 };
  62
  63 static guint signals[LAST_SIGNAL] = {0};
  64
  65 static GObject *call_factory = NULL;
  66
  67 static void
  68 empathy_call_factory_init (EmpathyCallFactory *obj)
  69 {
  70   TpBaseClient *client = (TpBaseClient *) obj;
  71
  72   tp_base_client_take_approver_filter (client, tp_asv_new (
  73         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  74           TP_IFACE_CHANNEL_TYPE_CALL,
  75         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  76           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  77         NULL));
  78
  79   tp_base_client_take_handler_filter (client, tp_asv_new (
  80         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  81           TP_IFACE_CHANNEL_TYPE_CALL,
  82         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  83           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  84         NULL));
  85
  86   tp_base_client_take_handler_filter (client, tp_asv_new (
  87         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  88           TP_IFACE_CHANNEL_TYPE_CALL,
  89         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  90           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  91         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  92         NULL));
  93
  94   tp_base_client_take_handler_filter (client, tp_asv_new (
  95         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  96           TP_IFACE_CHANNEL_TYPE_CALL,
  97         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  98           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  99         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 100         NULL));
 101
 102   tp_base_client_add_handler_capabilities_varargs (client,
 103       "org.freedesktop.Telepathy.Channel.Type.Call1/audio",
 104       "org.freedesktop.Telepathy.Channel.Type.Call1/video",
 105       "org.freedesktop.Telepathy.Channel.Type.Call1/ice",
 106       "org.freedesktop.Telepathy.Channel.Type.Call1/gtalk-p2p",
 107       "org.freedesktop.Telepathy.Channel.Type.Call1/video/h264",
 108       NULL);
 109 }
 110
 111 static GObject *
 112 empathy_call_factory_constructor (GType type, guint n_construct_params,
 113   GObjectConstructParam *construct_params)
 114 {
 115   g_return_val_if_fail (call_factory == NULL, NULL);
 116
 117   call_factory = G_OBJECT_CLASS (empathy_call_factory_parent_class)->constructor
 118           (type, n_construct_params, construct_params);
 119   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 120
 121   return call_factory;
 122 }
 123
 124 static void
 125 empathy_call_factory_class_init (EmpathyCallFactoryClass *klass)
 126 {
 127   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 128   TpBaseClientClass *base_clt_cls = TP_BASE_CLIENT_CLASS (klass);
 129
 130   object_class->constructor = empathy_call_factory_constructor;
 131
 132   base_clt_cls->handle_channels = handle_channels;
 133   base_clt_cls->add_dispatch_operation = approve_channels;
 134
 135   signals[NEW_CALL_HANDLER] =
 136     g_signal_new ("new-call-handler",
 137       G_TYPE_FROM_CLASS (klass),
 138       G_SIGNAL_RUN_LAST, 0,
 139       NULL, NULL,
 140       g_cclosure_marshal_generic,
 141       G_TYPE_NONE,
 142       2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
 143
 144   signals[INCOMING_CALL] =
 145     g_signal_new ("incoming-call",
 146       G_TYPE_FROM_CLASS (klass),
 147       G_SIGNAL_RUN_LAST, 0,
 148       NULL, NULL,
 149       g_cclosure_marshal_generic,
 150       G_TYPE_BOOLEAN,
 151       4, G_TYPE_UINT, TP_TYPE_CALL_CHANNEL,
 152       TP_TYPE_CHANNEL_DISPATCH_OPERATION,
 153       TP_TYPE_ADD_DISPATCH_OPERATION_CONTEXT);
 154 }
 155
 156 EmpathyCallFactory *
 157 empathy_call_factory_initialise (void)
 158 {
 159   EmpathyCallFactory *self;
 160   EmpathyClientFactory *factory;
 161   TpAccountManager *am;
 162
 163   g_return_val_if_fail (call_factory == NULL, NULL);
 164
 165   am = tp_account_manager_dup ();
 166   factory = empathy_client_factory_dup ();
 167
 168   self = EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY,
 169       "account-manager", am,
 170       "factory", factory,
 171       "name", EMPATHY_CALL_BUS_NAME_SUFFIX,
 172       NULL));
 173
 174   g_object_unref (am);
 175   g_object_unref (factory);
 176
 177   return self;
 178 }
 179
 180 EmpathyCallFactory *
 181 empathy_call_factory_get (void)
 182 {
 183   g_return_val_if_fail (call_factory != NULL, NULL);
 184
 185   return EMPATHY_CALL_FACTORY (call_factory);
 186 }
 187
 188 static void
 189 handle_channels (TpBaseClient *client,
 190     TpAccount *account,
 191     TpConnection *connection,
 192     GList *channels,
 193     GList *requests_satisfied,
 194     gint64 user_action_time,
 195     TpHandleChannelsContext *context)
 196 {
 197   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 198   GList *l;
 199
 200   for (l = channels; l != NULL; l = g_list_next (l))
 201     {
 202       TpChannel *channel = l->data;
 203       TpCallChannel *call;
 204       TpContact *tp_contact;
 205       EmpathyContact *contact;
 206       EmpathyCallHandler *handler;
 207
 208       if (tp_proxy_get_invalidated (channel) != NULL)
 209         continue;
 210
 211       if (tp_channel_get_channel_type_id (channel) !=
 212           TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 213         continue;
 214
 215       if (!TP_IS_CALL_CHANNEL (channel))
 216         continue;
 217
 218       call = TP_CALL_CHANNEL (channel);
 219
 220       tp_contact = tp_channel_get_target_contact (channel);
 221       contact = empathy_contact_dup_from_tp_contact (tp_contact);
 222       handler = empathy_call_handler_new_for_channel (call, contact);
 223
 224       g_signal_emit (self, signals[NEW_CALL_HANDLER], 0,
 225           handler, FALSE);
 226
 227       g_object_unref (handler);
 228       g_object_unref (contact);
 229     }
 230
 231   tp_handle_channels_context_accept (context);
 232 }
 233
 234 static TpCallChannel *
 235 find_call_channel (GList *channels)
 236 {
 237   GList *l;
 238
 239   for (l = channels; l != NULL; l = g_list_next (l))
 240     {
 241       TpChannel *channel = l->data;
 242       GQuark channel_type;
 243
 244       if (tp_proxy_get_invalidated (channel) != NULL)
 245         continue;
 246
 247       channel_type = tp_channel_get_channel_type_id (channel);
 248
 249       if (channel_type == TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 250         return TP_CALL_CHANNEL (channel);
 251     }
 252
 253   return NULL;
 254 }
 255
 256 static void
 257 approve_channels (TpBaseClient *client,
 258     TpAccount *account,
 259     TpConnection *connection,
 260     GList *channels,
 261     TpChannelDispatchOperation *dispatch_operation,
 262     TpAddDispatchOperationContext *context)
 263 {
 264   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 265   TpCallChannel *channel;
 266   guint handle;
 267   GError error = { TP_ERROR, TP_ERROR_INVALID_ARGUMENT, "" };
 268   gboolean handled = FALSE;
 269
 270   channel = find_call_channel (channels);
 271
 272   if (channel == NULL)
 273     {
 274       DEBUG ("Failed to find the main channel; ignoring");
 275       error.message = "Unknown channel";
 276       goto out;
 277     }
 278
 279   handle = tp_channel_get_handle (TP_CHANNEL (channel), NULL);
 280
 281   if (handle == 0)
 282     {
 283       DEBUG ("Unknown handle, ignoring");
 284       error.code = TP_ERROR_INVALID_HANDLE;
 285       error.message = "Unknown handle";
 286       goto out;
 287     }
 288
 289   g_signal_emit (self, signals[INCOMING_CALL], 0,
 290       handle, channel, dispatch_operation, context,
 291       &handled);
 292
 293   if (handled)
 294     return;
 295
 296   /* There was no call window so the context wasn't handled. */
 297   DEBUG ("Call with a contact for which there's no existing "
 298     "call window, ignoring");
 299   error.message = "No call window with this contact";
 300
 301  out:
 302   tp_add_dispatch_operation_context_fail (context, &error);
 303 }
 304
 305 gboolean
 306 empathy_call_factory_register (EmpathyCallFactory *self,
 307     GError **error)
 308 {
 309   return tp_base_client_register (TP_BASE_CLIENT (self), error);
 310 }