libempathy/empathy-contact-monitor.c

   1 /*
   2  * Copyright (C) 2008 Collabora Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Cosimo Cecchi <cosimo.cecchi@collabora.co.uk>
  19  */
  20
  21 #include "config.h"
  22
  23 #include <glib-object.h>
  24
  25 #include "empathy-contact-monitor.h"
  26 #include "empathy-contact-list.h"
  27
  28 #include "empathy-contact.h"
  29 #include "empathy-utils.h"
  30 #include "empathy-marshal.h"
  31
  32 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyContactMonitor)
  33
  34 typedef struct {
  35   EmpathyContactList *iface;
  36   GList *contacts;
  37
  38   gboolean dispose_run;
  39 } EmpathyContactMonitorPriv;
  40
  41 enum {
  42   CONTACT_ADDED,
  43   CONTACT_AVATAR_CHANGED,
  44   CONTACT_CAPABILITIES_CHANGED,
  45   CONTACT_NAME_CHANGED,
  46   CONTACT_PRESENCE_CHANGED,
  47   CONTACT_PRESENCE_MESSAGE_CHANGED,
  48   CONTACT_REMOVED,
  49   LAST_SIGNAL
  50 };
  51
  52 enum {
  53   PROP_0,
  54   PROP_IFACE
  55 };
  56
  57 static guint signals[LAST_SIGNAL];
  58
  59 G_DEFINE_TYPE (EmpathyContactMonitor, empathy_contact_monitor, G_TYPE_OBJECT);
  60
  61 static void
  62 contact_monitor_presence_changed_cb (EmpathyContact *contact,
  63     TpConnectionPresenceType current_presence,
  64     TpConnectionPresenceType previous_presence,
  65     EmpathyContactMonitor *self)
  66 {
  67   g_signal_emit (self, signals[CONTACT_PRESENCE_CHANGED], 0, contact,
  68                  current_presence, previous_presence);
  69 }
  70
  71 static void
  72 contact_monitor_presence_message_changed_cb (EmpathyContact *contact,
  73                                              GParamSpec *pspec,
  74                                              EmpathyContactMonitor *self)
  75 {
  76   const char *status;
  77
  78   /* use the status so that we always have a presence message */
  79   status = empathy_contact_get_status (contact);
  80
  81   g_signal_emit (self, signals[CONTACT_PRESENCE_MESSAGE_CHANGED], 0,
  82                  contact, status);
  83 }
  84
  85 static void
  86 contact_monitor_name_changed_cb (EmpathyContact *contact,
  87                                  GParamSpec *pspec,
  88                                  EmpathyContactMonitor *self)
  89 {
  90   const char *name;
  91
  92   name = empathy_contact_get_name (contact);
  93
  94   g_signal_emit (self, signals[CONTACT_NAME_CHANGED], 0, contact, name);
  95 }
  96
  97 static void
  98 contact_monitor_avatar_changed_cb (EmpathyContact *contact,
  99                                    GParamSpec *pspec,
 100                                    EmpathyContactMonitor *self)
 101 {
 102   /* don't emit a pixbuf in the signal, as we don't depend on GTK+ here
 103    */
 104
 105   g_signal_emit (self, signals[CONTACT_AVATAR_CHANGED], 0, contact);
 106 }
 107
 108 static void
 109 contact_monitor_capabilities_changed_cb (EmpathyContact *contact,
 110                                          GParamSpec *pspec,
 111                                          EmpathyContactMonitor *self)
 112 {
 113   g_signal_emit (self, signals[CONTACT_CAPABILITIES_CHANGED], 0, contact);
 114 }
 115
 116 static void
 117 contact_add (EmpathyContactMonitor *monitor,
 118              EmpathyContact *contact)
 119 {
 120   EmpathyContactMonitorPriv *priv = GET_PRIV (monitor);
 121
 122   g_signal_connect (contact, "presence-changed",
 123                     G_CALLBACK (contact_monitor_presence_changed_cb),
 124                     monitor);
 125   g_signal_connect (contact, "notify::presence-message",
 126                     G_CALLBACK (contact_monitor_presence_message_changed_cb),
 127                     monitor);
 128   g_signal_connect (contact, "notify::name",
 129                     G_CALLBACK (contact_monitor_name_changed_cb),
 130                     monitor);
 131   g_signal_connect (contact, "notify::avatar",
 132                     G_CALLBACK (contact_monitor_avatar_changed_cb),
 133                     monitor);
 134   g_signal_connect (contact, "notify::capabilities",
 135                     G_CALLBACK (contact_monitor_capabilities_changed_cb),
 136                     monitor);
 137
 138   priv->contacts = g_list_prepend (priv->contacts, g_object_ref (contact));
 139
 140   g_signal_emit (monitor, signals[CONTACT_ADDED], 0, contact);
 141 }
 142
 143 static void
 144 contact_remove (EmpathyContactMonitor *monitor,
 145                 EmpathyContact *contact)
 146 {
 147   EmpathyContactMonitorPriv *priv = GET_PRIV (monitor);
 148
 149   g_signal_handlers_disconnect_by_func (contact,
 150                                         G_CALLBACK (contact_monitor_presence_changed_cb),
 151                                         monitor);
 152   g_signal_handlers_disconnect_by_func (contact,
 153                                         G_CALLBACK (contact_monitor_presence_message_changed_cb),
 154                                         monitor);
 155   g_signal_handlers_disconnect_by_func (contact,
 156                                         G_CALLBACK (contact_monitor_name_changed_cb),
 157                                         monitor);
 158   g_signal_handlers_disconnect_by_func (contact,
 159                                         G_CALLBACK (contact_monitor_avatar_changed_cb),
 160                                         monitor);
 161   g_signal_handlers_disconnect_by_func (contact,
 162                                         G_CALLBACK (contact_monitor_capabilities_changed_cb),
 163                                         monitor);
 164
 165   priv->contacts = g_list_remove (priv->contacts, contact);
 166
 167   g_signal_emit (monitor, signals[CONTACT_REMOVED], 0, contact);
 168
 169   g_object_unref (contact);
 170 }
 171
 172 static void
 173 contact_remove_foreach (EmpathyContact *contact,
 174                         EmpathyContactMonitor *monitor)
 175 {
 176   contact_remove (monitor, contact);
 177 }
 178
 179 static void
 180 cl_members_changed_cb (EmpathyContactList    *cl,
 181                        EmpathyContact        *contact,
 182                        EmpathyContact        *actor,
 183                        guint                  reason,
 184                        gchar                 *message,
 185                        gboolean               is_member,
 186                        EmpathyContactMonitor *monitor)
 187 {
 188   if (is_member)
 189     contact_add (monitor, contact);
 190   else
 191     contact_remove (monitor, contact);
 192 }
 193
 194 static void
 195 do_set_property (GObject      *object,
 196                  guint         param_id,
 197                  const GValue *value,
 198                  GParamSpec   *pspec)
 199 {
 200   switch (param_id)
 201     {
 202       case PROP_IFACE:
 203         empathy_contact_monitor_set_iface (EMPATHY_CONTACT_MONITOR (object),
 204                                            g_value_get_object (value));
 205         break;
 206       default:
 207         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 208         break;
 209     };
 210 }
 211
 212 static void
 213 do_get_property (GObject    *object,
 214                  guint       param_id,
 215                  GValue     *value,
 216                  GParamSpec *pspec)
 217 {
 218   EmpathyContactMonitorPriv *priv = GET_PRIV (object);
 219
 220   switch (param_id)
 221     {
 222       case PROP_IFACE:
 223         g_value_set_object (value, priv->iface);
 224         break;
 225       default:
 226         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 227         break;
 228     };
 229 }
 230
 231 static void
 232 do_finalize (GObject *obj)
 233 {
 234   EmpathyContactMonitorPriv *priv;
 235
 236   priv = GET_PRIV (obj);
 237
 238   if (priv->contacts)
 239     {
 240       g_list_free (priv->contacts);
 241       priv->contacts = NULL;
 242     }
 243
 244   if (priv->iface)
 245     g_signal_handlers_disconnect_by_func (priv->iface,
 246                                           cl_members_changed_cb, obj);
 247
 248   G_OBJECT_CLASS (empathy_contact_monitor_parent_class)->finalize (obj);
 249 }
 250
 251 static void
 252 do_dispose (GObject *obj)
 253 {
 254   EmpathyContactMonitorPriv *priv;
 255
 256   priv = GET_PRIV (obj);
 257
 258   if (priv->dispose_run)
 259     return;
 260
 261   priv->dispose_run = TRUE;
 262
 263   if (priv->contacts)
 264     g_list_foreach (priv->contacts,
 265                     (GFunc) contact_remove_foreach, obj);
 266
 267   if (priv->iface)
 268     g_signal_handlers_disconnect_by_func (priv->iface,
 269                                           cl_members_changed_cb, obj);
 270
 271   G_OBJECT_CLASS (empathy_contact_monitor_parent_class)->dispose (obj);
 272 }
 273
 274 static void
 275 empathy_contact_monitor_class_init (EmpathyContactMonitorClass *klass)
 276 {
 277   GObjectClass *oclass = G_OBJECT_CLASS (klass);
 278
 279   oclass->finalize = do_finalize;
 280   oclass->dispose = do_dispose;
 281   oclass->get_property = do_get_property;
 282   oclass->set_property = do_set_property;
 283
 284   g_object_class_install_property (oclass,
 285                                    PROP_IFACE,
 286                                    g_param_spec_object ("iface",
 287                                                         "Monitor's iface",
 288                                                         "The contact list we're monitoring",
 289                                                         EMPATHY_TYPE_CONTACT_LIST,
 290                                                         G_PARAM_READWRITE |
 291                                                         G_PARAM_CONSTRUCT_ONLY |
 292                                                         G_PARAM_STATIC_STRINGS));
 293
 294   signals[CONTACT_ADDED] =
 295     g_signal_new ("contact-added",
 296                   G_TYPE_FROM_CLASS (klass),
 297                   G_SIGNAL_RUN_LAST,
 298                   0,
 299                   NULL, NULL,
 300                   g_cclosure_marshal_VOID__OBJECT,
 301                   G_TYPE_NONE,
 302                   1, EMPATHY_TYPE_CONTACT);
 303   signals[CONTACT_AVATAR_CHANGED] =
 304     g_signal_new ("contact-avatar-changed",
 305                   G_TYPE_FROM_CLASS (klass),
 306                   G_SIGNAL_RUN_LAST,
 307                   0,
 308                   NULL, NULL,
 309                   g_cclosure_marshal_VOID__OBJECT,
 310                   G_TYPE_NONE,
 311                   1, EMPATHY_TYPE_CONTACT);
 312   signals[CONTACT_CAPABILITIES_CHANGED] =
 313     g_signal_new ("contact-capabilities-changed",
 314                   G_TYPE_FROM_CLASS (klass),
 315                   G_SIGNAL_RUN_LAST,
 316                   0,
 317                   NULL, NULL,
 318                   g_cclosure_marshal_VOID__OBJECT,
 319                   G_TYPE_NONE,
 320                   1, EMPATHY_TYPE_CONTACT);
 321   signals[CONTACT_NAME_CHANGED] =
 322     g_signal_new ("contact-name-changed",
 323                   G_TYPE_FROM_CLASS (klass),
 324                   G_SIGNAL_RUN_LAST,
 325                   0,
 326                   NULL, NULL,
 327                   _empathy_marshal_VOID__OBJECT_STRING,
 328                   G_TYPE_NONE,
 329                   2, EMPATHY_TYPE_CONTACT,
 330                   G_TYPE_STRING);
 331   signals[CONTACT_PRESENCE_CHANGED] =
 332     g_signal_new ("contact-presence-changed",
 333                   G_TYPE_FROM_CLASS (klass),
 334                   G_SIGNAL_RUN_LAST,
 335                   0,
 336                   NULL, NULL,
 337                   _empathy_marshal_VOID__OBJECT_UINT_UINT,
 338                   G_TYPE_NONE,
 339                   3, EMPATHY_TYPE_CONTACT,
 340                   G_TYPE_UINT,
 341                   G_TYPE_UINT);
 342   signals[CONTACT_PRESENCE_MESSAGE_CHANGED] =
 343     g_signal_new ("contact-presence-message-changed",
 344                   G_TYPE_FROM_CLASS (klass),
 345                   G_SIGNAL_RUN_LAST,
 346                   0,
 347                   NULL, NULL,
 348                   _empathy_marshal_VOID__OBJECT_STRING,
 349                   G_TYPE_NONE,
 350                   2, EMPATHY_TYPE_CONTACT,
 351                   G_TYPE_STRING);
 352   signals[CONTACT_REMOVED] =
 353     g_signal_new ("contact-removed",
 354                   G_TYPE_FROM_CLASS (klass),
 355                   G_SIGNAL_RUN_LAST,
 356                   0,
 357                   NULL, NULL,
 358                   g_cclosure_marshal_VOID__OBJECT,
 359                   G_TYPE_NONE,
 360                   1, EMPATHY_TYPE_CONTACT);
 361
 362   g_type_class_add_private (klass, sizeof (EmpathyContactMonitorPriv));
 363 }
 364
 365 static void
 366 empathy_contact_monitor_init (EmpathyContactMonitor *self)
 367 {
 368   EmpathyContactMonitorPriv *priv =
 369       G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_CONTACT_MONITOR,
 370                                    EmpathyContactMonitorPriv);
 371
 372   self->priv = priv;
 373   priv->contacts = NULL;
 374   priv->iface = NULL;
 375   priv->dispose_run = FALSE;
 376 }
 377
 378 /* public methods */
 379
 380 void
 381 empathy_contact_monitor_set_iface (EmpathyContactMonitor *self,
 382                                    EmpathyContactList *iface)
 383 {
 384   EmpathyContactMonitorPriv *priv;
 385
 386   g_return_if_fail (EMPATHY_IS_CONTACT_MONITOR (self));
 387   g_return_if_fail (EMPATHY_IS_CONTACT_LIST (iface));
 388
 389   priv = GET_PRIV (self);
 390
 391   if (priv->contacts != NULL)
 392     {
 393       g_list_foreach (priv->contacts,
 394                       (GFunc) contact_remove_foreach, self);
 395       g_list_free (priv->contacts);
 396       priv->contacts = NULL;
 397     }
 398
 399   priv->iface = iface;
 400
 401   g_signal_connect (iface, "members-changed",
 402                     G_CALLBACK (cl_members_changed_cb), self);
 403 }
 404
 405 EmpathyContactMonitor *
 406 empathy_contact_monitor_new_for_iface (EmpathyContactList *iface)
 407 {
 408   EmpathyContactMonitor *retval;
 409
 410   g_return_val_if_fail (EMPATHY_IS_CONTACT_LIST (iface), NULL);
 411
 412   retval = g_object_new (EMPATHY_TYPE_CONTACT_MONITOR,
 413                          "iface", iface, NULL);
 414
 415   return retval;
 416 }
 417