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-tp-contact-factory.h>
  34 #include <libempathy/empathy-utils.h>
  35
  36 #include "empathy-call-factory.h"
  37 #include "empathy-call-handler.h"
  38
  39 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
  40 #include <libempathy/empathy-debug.h>
  41
  42 G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, TP_TYPE_BASE_CLIENT)
  43
  44 static void handle_channels (TpBaseClient *client,
  45     TpAccount *account,
  46     TpConnection *connection,
  47     GList *channels,
  48     GList *requests_satisfied,
  49     gint64 user_action_time,
  50     TpHandleChannelsContext *context);
  51
  52 static void approve_channels (TpBaseClient *client,
  53     TpAccount *account,
  54     TpConnection *connection,
  55     GList *channels,
  56     TpChannelDispatchOperation *dispatch_operation,
  57     TpAddDispatchOperationContext *context);
  58
  59 /* signal enum */
  60 enum
  61 {
  62     NEW_CALL_HANDLER,
  63     INCOMING_CALL,
  64     LAST_SIGNAL
  65 };
  66
  67 static guint signals[LAST_SIGNAL] = {0};
  68
  69 static GObject *call_factory = NULL;
  70
  71 static void
  72 empathy_call_factory_init (EmpathyCallFactory *obj)
  73 {
  74   TpBaseClient *client = (TpBaseClient *) obj;
  75
  76   tp_base_client_take_approver_filter (client, tp_asv_new (
  77         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  78           TP_IFACE_CHANNEL_TYPE_CALL,
  79         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  80           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  81         NULL));
  82
  83   tp_base_client_take_handler_filter (client, tp_asv_new (
  84         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  85           TP_IFACE_CHANNEL_TYPE_CALL,
  86         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  87           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  88         NULL));
  89
  90   tp_base_client_take_handler_filter (client, tp_asv_new (
  91         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
  92           TP_IFACE_CHANNEL_TYPE_CALL,
  93         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
  94           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
  95         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
  96         NULL));
  97
  98   tp_base_client_take_handler_filter (client, tp_asv_new (
  99         TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
 100           TP_IFACE_CHANNEL_TYPE_CALL,
 101         TP_PROP_CHANNEL_TARGET_HANDLE_TYPE,
 102           G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 103         TP_PROP_CHANNEL_TYPE_CALL_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
 104         NULL));
 105
 106   tp_base_client_add_handler_capabilities_varargs (client,
 107       "org.freedesktop.Telepathy.Channel.Type.Call1/audio",
 108       "org.freedesktop.Telepathy.Channel.Type.Call1/video",
 109       "org.freedesktop.Telepathy.Channel.Type.Call1/ice",
 110       "org.freedesktop.Telepathy.Channel.Type.Call1/gtalk-p2p",
 111       "org.freedesktop.Telepathy.Channel.Type.Call1/video/h264",
 112       NULL);
 113 }
 114
 115 static GObject *
 116 empathy_call_factory_constructor (GType type, guint n_construct_params,
 117   GObjectConstructParam *construct_params)
 118 {
 119   g_return_val_if_fail (call_factory == NULL, NULL);
 120
 121   call_factory = G_OBJECT_CLASS (empathy_call_factory_parent_class)->constructor
 122           (type, n_construct_params, construct_params);
 123   g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
 124
 125   return call_factory;
 126 }
 127
 128 static void
 129 empathy_call_factory_class_init (EmpathyCallFactoryClass *klass)
 130 {
 131   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 132   TpBaseClientClass *base_clt_cls = TP_BASE_CLIENT_CLASS (klass);
 133
 134   object_class->constructor = empathy_call_factory_constructor;
 135
 136   base_clt_cls->handle_channels = handle_channels;
 137   base_clt_cls->add_dispatch_operation = approve_channels;
 138
 139   signals[NEW_CALL_HANDLER] =
 140     g_signal_new ("new-call-handler",
 141       G_TYPE_FROM_CLASS (klass),
 142       G_SIGNAL_RUN_LAST, 0,
 143       NULL, NULL,
 144       g_cclosure_marshal_generic,
 145       G_TYPE_NONE,
 146       2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
 147
 148   signals[INCOMING_CALL] =
 149     g_signal_new ("incoming-call",
 150       G_TYPE_FROM_CLASS (klass),
 151       G_SIGNAL_RUN_LAST, 0,
 152       NULL, NULL,
 153       g_cclosure_marshal_generic,
 154       G_TYPE_BOOLEAN,
 155       4, G_TYPE_UINT, TP_TYPE_CALL_CHANNEL,
 156       TP_TYPE_CHANNEL_DISPATCH_OPERATION,
 157       TP_TYPE_ADD_DISPATCH_OPERATION_CONTEXT);
 158 }
 159
 160 EmpathyCallFactory *
 161 empathy_call_factory_initialise (void)
 162 {
 163   EmpathyCallFactory *self;
 164   EmpathyClientFactory *factory;
 165   TpAccountManager *am;
 166
 167   g_return_val_if_fail (call_factory == NULL, NULL);
 168
 169   am = tp_account_manager_dup ();
 170   factory = empathy_client_factory_dup ();
 171
 172   self = EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY,
 173       "account-manager", am,
 174       "factory", factory,
 175       "name", EMPATHY_CALL_BUS_NAME_SUFFIX,
 176       NULL));
 177
 178   g_object_unref (am);
 179   g_object_unref (factory);
 180
 181   return self;
 182 }
 183
 184 EmpathyCallFactory *
 185 empathy_call_factory_get (void)
 186 {
 187   g_return_val_if_fail (call_factory != NULL, NULL);
 188
 189   return EMPATHY_CALL_FACTORY (call_factory);
 190 }
 191
 192 static void
 193 handle_channels (TpBaseClient *client,
 194     TpAccount *account,
 195     TpConnection *connection,
 196     GList *channels,
 197     GList *requests_satisfied,
 198     gint64 user_action_time,
 199     TpHandleChannelsContext *context)
 200 {
 201   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 202   GList *l;
 203
 204   for (l = channels; l != NULL; l = g_list_next (l))
 205     {
 206       TpChannel *channel = l->data;
 207       TpCallChannel *call;
 208       TpContact *tp_contact;
 209       EmpathyContact *contact;
 210       EmpathyCallHandler *handler;
 211
 212       if (tp_proxy_get_invalidated (channel) != NULL)
 213         continue;
 214
 215       if (tp_channel_get_channel_type_id (channel) !=
 216           TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 217         continue;
 218
 219       if (!TP_IS_CALL_CHANNEL (channel))
 220         continue;
 221
 222       call = TP_CALL_CHANNEL (channel);
 223
 224       tp_contact = tp_channel_get_target_contact (channel);
 225       contact = empathy_contact_dup_from_tp_contact (tp_contact);
 226       handler = empathy_call_handler_new_for_channel (call, contact);
 227
 228       g_signal_emit (self, signals[NEW_CALL_HANDLER], 0,
 229           handler, FALSE);
 230
 231       g_object_unref (handler);
 232       g_object_unref (contact);
 233     }
 234
 235   tp_handle_channels_context_accept (context);
 236 }
 237
 238 static TpCallChannel *
 239 find_call_channel (GList *channels)
 240 {
 241   GList *l;
 242
 243   for (l = channels; l != NULL; l = g_list_next (l))
 244     {
 245       TpChannel *channel = l->data;
 246       GQuark channel_type;
 247
 248       if (tp_proxy_get_invalidated (channel) != NULL)
 249         continue;
 250
 251       channel_type = tp_channel_get_channel_type_id (channel);
 252
 253       if (channel_type == TP_IFACE_QUARK_CHANNEL_TYPE_CALL)
 254         return TP_CALL_CHANNEL (channel);
 255     }
 256
 257   return NULL;
 258 }
 259
 260 static void
 261 approve_channels (TpBaseClient *client,
 262     TpAccount *account,
 263     TpConnection *connection,
 264     GList *channels,
 265     TpChannelDispatchOperation *dispatch_operation,
 266     TpAddDispatchOperationContext *context)
 267 {
 268   EmpathyCallFactory *self = EMPATHY_CALL_FACTORY (client);
 269   TpCallChannel *channel;
 270   guint handle;
 271   GError error = { TP_ERRORS, TP_ERROR_INVALID_ARGUMENT, "" };
 272   gboolean handled = FALSE;
 273
 274   channel = find_call_channel (channels);
 275
 276   if (channel == NULL)
 277     {
 278       DEBUG ("Failed to find the main channel; ignoring");
 279       error.message = "Unknown channel";
 280       goto out;
 281     }
 282
 283   handle = tp_channel_get_handle (TP_CHANNEL (channel), NULL);
 284
 285   if (handle == 0)
 286     {
 287       DEBUG ("Unknown handle, ignoring");
 288       error.code = TP_ERROR_INVALID_HANDLE;
 289       error.message = "Unknown handle";
 290       goto out;
 291     }
 292
 293   g_signal_emit (self, signals[INCOMING_CALL], 0,
 294       handle, channel, dispatch_operation, context,
 295       &handled);
 296
 297   if (handled)
 298     return;
 299
 300   /* There was no call window so the context wasn't handled. */
 301   DEBUG ("Call with a contact for which there's no existing "
 302     "call window, ignoring");
 303   error.message = "No call window with this contact";
 304
 305  out:
 306   tp_add_dispatch_operation_context_fail (context, &error);
 307 }
 308
 309 gboolean
 310 empathy_call_factory_register (EmpathyCallFactory *self,
 311     GError **error)
 312 {
 313   return tp_base_client_register (TP_BASE_CLIENT (self), error);
 314 }