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/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-client-factory.h>
  32 #include <libempathy/empathy-request-util.h>
  33 #include <libempathy/empathy-utils.h>
  34
  35 #include "empathy-call-factory.h"
  36 #include "empathy-call-handler.h"
  37
  38 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  39 #include <libempathy/empathy-debug.h>
  40
  41 G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, TP_TYPE_BASE_CLIENT)
  42
  43 static void handle_channels (TpBaseClient *client,
  44     TpAccount *account,
  45     TpConnection *connection,
  46     GList *channels,
  47     GList *requests_satisfied,
  48     gint64 user_action_time,
  49     TpHandleChannelsContext *context);
  50
  51 static void approve_channels (TpBaseClient *client,
  52     TpAccount *account,
  53     TpConnection *connection,
  54     GList *channels,
  55     TpChannelDispatchOperation *dispatch_operation,
  56     TpAddDispatchOperationContext *context);
  57
  58 /* signal enum */
  59 enum
  60 {
  61     NEW_CALL_HANDLER,
  62     INCOMING_CALL,
  63     LAST_SIGNAL
  64 };
  65
  66 static guint signals[LAST_SIGNAL] = {0};
  67
  68 static GObject *call_factory = NULL;
  69
  70 static void
  71 empathy_call_factory_init (EmpathyCallFactory *obj)
  72 {
  73   TpBaseClient *client = (TpBaseClient *) obj;
  74
  75   tp_base_client_take_approver_filter (client, tp_asv_new (
  76         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  77           TP_IFACE_CHANNEL_TYPE_CALL,
  78         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  79           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  80         NULL));
  81
  82   tp_base_client_take_handler_filter (client, tp_asv_new (
  83         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  84           TP_IFACE_CHANNEL_TYPE_CALL,
  85         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  86           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  87         NULL));
  88
  89   tp_base_client_take_handler_filter (client, tp_asv_new (
  90         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  91           TP_IFACE_CHANNEL_TYPE_CALL,
  92         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  93           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  94         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  95         NULL));
  96
  97   tp_base_client_take_handler_filter (client, tp_asv_new (
  98         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  99           TP_IFACE_CHANNEL_TYPE_CALL,
 100         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
 101           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 102         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 103         NULL));
 104
 105   tp_base_client_add_handler_capabilities_varargs (client,
 106       "org.freedesktop.Telepathy.Channel.Type.Call1/audio",
 107       "org.freedesktop.Telepathy.Channel.Type.Call1/video",
 108       "org.freedesktop.Telepathy.Channel.Type.Call1/ice",
 109       "org.freedesktop.Telepathy.Channel.Type.Call1/gtalk-p2p",
 110       "org.freedesktop.Telepathy.Channel.Type.Call1/video/h264",
 111       NULL);
 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_class_init (EmpathyCallFactoryClass *klass)
 129 {
 130   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 131   TpBaseClientClass *base_clt_cls = TP_BASE_CLIENT_CLASS (klass);
 132
 133   object_class->constructor = empathy_call_factory_constructor;
 134
 135   base_clt_cls->handle_channels = handle_channels;
 136   base_clt_cls->add_dispatch_operation = approve_channels;
 137
 138   signals[NEW_CALL_HANDLER] =
 139     g_signal_new ("new-call-handler",
 140       G_TYPE_FROM_CLASS (klass),
 141       G_SIGNAL_RUN_LAST, 0,
 142       NULL, NULL,
 143       g_cclosure_marshal_generic,
 144       G_TYPE_NONE,
 145       2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
 146
 147   signals[INCOMING_CALL] =
 148     g_signal_new ("incoming-call",
 149       G_TYPE_FROM_CLASS (klass),
 150       G_SIGNAL_RUN_LAST, 0,
 151       NULL, NULL,
 152       g_cclosure_marshal_generic,
 153       G_TYPE_BOOLEAN,
 154       4, G_TYPE_UINT, TP_TYPE_CALL_CHANNEL,
 155       TP_TYPE_CHANNEL_DISPATCH_OPERATION,
 156       TP_TYPE_ADD_DISPATCH_OPERATION_CONTEXT);
 157 }
 158
 159 EmpathyCallFactory *
 160 empathy_call_factory_initialise (void)
 161 {
 162   EmpathyCallFactory *self;
 163   EmpathyClientFactory *factory;
 164   TpAccountManager *am;
 165
 166   g_return_val_if_fail (call_factory == NULL, NULL);
 167
 168   am = tp_account_manager_dup ();
 169   factory = empathy_client_factory_dup ();
 170
 171   self = EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY,
 172       "account-manager", am,
 173       "factory", factory,
 174       "name", EMPATHY_CALL_BUS_NAME_SUFFIX,
 175       NULL));
 176
 177   g_object_unref (am);
 178   g_object_unref (factory);
 179
 180   return self;
 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 static void
 192 handle_channels (TpBaseClient *client,
 193     TpAccount *account,
 194     TpConnection *connection,
 195     GList *channels,
 196     GList *requests_satisfied,
 197     gint64 user_action_time,
 198     TpHandleChannelsContext *context)
 199 {
 200   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 201   GList *l;
 202
 203   for (l = channels; l != NULL; l = g_list_next (l))
 204     {
 205       TpChannel *channel = l->data;
 206       TpCallChannel *call;
 207       TpContact *tp_contact;
 208       EmpathyContact *contact;
 209       EmpathyCallHandler *handler;
 210
 211       if (tp_proxy_get_invalidated (channel) != NULL)
 212         continue;
 213
 214       if (tp_channel_get_channel_type_id (channel) !=
 215           TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 216         continue;
 217
 218       if (!TP_IS_CALL_CHANNEL (channel))
 219         continue;
 220
 221       call = TP_CALL_CHANNEL (channel);
 222
 223       tp_contact = tp_channel_get_target_contact (channel);
 224       contact = empathy_contact_dup_from_tp_contact (tp_contact);
 225       handler = empathy_call_handler_new_for_channel (call, contact);
 226
 227       g_signal_emit (self, signals[NEW_CALL_HANDLER], 0,
 228           handler, FALSE);
 229
 230       g_object_unref (handler);
 231       g_object_unref (contact);
 232     }
 233
 234   tp_handle_channels_context_accept (context);
 235 }
 236
 237 static TpCallChannel *
 238 find_call_channel (GList *channels)
 239 {
 240   GList *l;
 241
 242   for (l = channels; l != NULL; l = g_list_next (l))
 243     {
 244       TpChannel *channel = l->data;
 245       GQuark channel_type;
 246
 247       if (tp_proxy_get_invalidated (channel) != NULL)
 248         continue;
 249
 250       channel_type = tp_channel_get_channel_type_id (channel);
 251
 252       if (channel_type == TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 253         return TP_CALL_CHANNEL (channel);
 254     }
 255
 256   return NULL;
 257 }
 258
 259 static void
 260 approve_channels (TpBaseClient *client,
 261     TpAccount *account,
 262     TpConnection *connection,
 263     GList *channels,
 264     TpChannelDispatchOperation *dispatch_operation,
 265     TpAddDispatchOperationContext *context)
 266 {
 267   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 268   TpCallChannel *channel;
 269   guint handle;
 270   GError error = { TP_ERROR, TP_ERROR_INVALID_ARGUMENT, "" };
 271   gboolean handled = FALSE;
 272
 273   channel = find_call_channel (channels);
 274
 275   if (channel == NULL)
 276     {
 277       DEBUG ("Failed to find the main channel; ignoring");
 278       error.message = "Unknown channel";
 279       goto out;
 280     }
 281
 282   handle = tp_channel_get_handle (TP_CHANNEL (channel), NULL);
 283
 284   if (handle == 0)
 285     {
 286       DEBUG ("Unknown handle, ignoring");
 287       error.code = TP_ERROR_INVALID_HANDLE;
 288       error.message = "Unknown handle";
 289       goto out;
 290     }
 291
 292   g_signal_emit (self, signals[INCOMING_CALL], 0,
 293       handle, channel, dispatch_operation, context,
 294       &handled);
 295
 296   if (handled)
 297     return;
 298
 299   /* There was no call window so the context wasn't handled. */
 300   DEBUG ("Call with a contact for which there's no existing "
 301     "call window, ignoring");
 302   error.message = "No call window with this contact";
 303
 304  out:
 305   tp_add_dispatch_operation_context_fail (context, &error);
 306 }
 307
 308 gboolean
 309 empathy_call_factory_register (EmpathyCallFactory *self,
 310     GError **error)
 311 {
 312   return tp_base_client_register (TP_BASE_CLIENT (self), error);
 313 }