libempathy/empathy-tp-contact-list.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007 Xavier Claessens <xclaesse@gmail.com>
   4  * Copyright (C) 2007-2009 Collabora Ltd.
   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  * Authors: Xavier Claessens <xclaesse@gmail.com>
  21  */
  22
  23 #include <config.h>
  24
  25 #include <string.h>
  26 #include <glib/gi18n-lib.h>
  27
  28 #include <telepathy-glib/channel.h>
  29 #include <telepathy-glib/connection.h>
  30 #include <telepathy-glib/util.h>
  31 #include <telepathy-glib/dbus.h>
  32 #include <telepathy-glib/interfaces.h>
  33
  34 #include "empathy-tp-contact-list.h"
  35 #include "empathy-tp-contact-factory.h"
  36 #include "empathy-contact-list.h"
  37 #include "empathy-utils.h"
  38
  39 #define DEBUG_FLAG EMPATHY_DEBUG_TP | EMPATHY_DEBUG_CONTACT
  40 #include "empathy-debug.h"
  41
  42 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyTpContactList)
  43 typedef struct {
  44         EmpathyTpContactFactory *factory;
  45         TpConnection   *connection;
  46
  47         TpChannel      *publish;
  48         TpChannel      *subscribe;
  49         TpChannel      *stored;
  50         /* contact handle (TpHandle) => reffed (EmpathyContact *)
  51          *
  52          * Union of:
  53          *  - members of 'subscribe': we receive their presence
  54          *  - RP of 'subscribe': we asked to receive their presence
  55          *  - members of 'publish': we send them our presence
  56          *  - members of 'stored': they are in our roster
  57          */
  58         GHashTable     *members;
  59         /* contact handle (TpHandle) => reffed (EmpathyContact *)
  60          *
  61          * Contacts which are local-pending in the publish channel but are NOT in
  62          * the members hash table: they asked to receive our presence and we don't
  63          * receive theirs or asked to.
  64          * That's basically the contacts which asked to add us to their contact
  65          * list and we didn't answer it. */
  66         GHashTable     *pendings;
  67         /* group name: borrowed (const gchar *)  => reffed (TpChannel *) */
  68         GHashTable     *groups;
  69         /* group name: owned (gchar *) => owned GArray of TpHandle */
  70         GHashTable     *add_to_group;
  71
  72         EmpathyContactListFlags flags;
  73 } EmpathyTpContactListPriv;
  74
  75 typedef enum {
  76         TP_CONTACT_LIST_TYPE_PUBLISH,
  77         TP_CONTACT_LIST_TYPE_SUBSCRIBE,
  78         TP_CONTACT_LIST_TYPE_UNKNOWN
  79 } TpContactListType;
  80
  81 static void tp_contact_list_iface_init         (EmpathyContactListIface   *iface);
  82
  83 enum {
  84         PROP_0,
  85         PROP_CONNECTION,
  86 };
  87
  88 G_DEFINE_TYPE_WITH_CODE (EmpathyTpContactList, empathy_tp_contact_list, G_TYPE_OBJECT,
  89                          G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CONTACT_LIST,
  90                                                 tp_contact_list_iface_init));
  91
  92 static void
  93 tp_contact_list_forget_group (EmpathyTpContactList *list,
  94                               TpChannel *channel)
  95 {
  96         EmpathyTpContactListPriv *priv = GET_PRIV (list);
  97         const TpIntSet *members;
  98         TpIntSetIter iter;
  99         const gchar *group_name;
 100
 101         group_name = tp_channel_get_identifier (channel);
 102
 103         /* Signal that all members are not in that group anymore */
 104         members = tp_channel_group_get_members (channel);
 105         tp_intset_iter_init (&iter, members);
 106         while (tp_intset_iter_next (&iter)) {
 107                 EmpathyContact *contact;
 108
 109                 contact = g_hash_table_lookup (priv->members,
 110                                                GUINT_TO_POINTER (iter.element));
 111                 if (contact == NULL) {
 112                         continue;
 113                 }
 114
 115                 DEBUG ("Contact %s (%d) removed from group %s",
 116                         empathy_contact_get_id (contact), iter.element,
 117                         group_name);
 118                 g_signal_emit_by_name (list, "groups-changed", contact,
 119                                        group_name,
 120                                        FALSE);
 121         }
 122 }
 123
 124 static void
 125 tp_contact_list_group_invalidated_cb (TpChannel *channel,
 126                                       guint      domain,
 127                                       gint       code,
 128                                       gchar     *message,
 129                                       EmpathyTpContactList *list)
 130 {
 131         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 132         const gchar *group_name;
 133
 134         group_name = tp_channel_get_identifier (channel);
 135         DEBUG ("Group %s invalidated. Message: %s", group_name, message);
 136
 137         tp_contact_list_forget_group (list, channel);
 138
 139         g_hash_table_remove (priv->groups, group_name);
 140 }
 141
 142 static void
 143 contacts_added_to_group (EmpathyTpContactList *list,
 144                          TpChannel *channel,
 145                          GArray *added)
 146 {
 147         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 148         const gchar *group_name;
 149         guint i;
 150
 151         group_name = tp_channel_get_identifier (channel);
 152
 153         for (i = 0; i < added->len; i++) {
 154                 EmpathyContact *contact;
 155                 TpHandle handle;
 156
 157                 handle = g_array_index (added, TpHandle, i);
 158                 contact = g_hash_table_lookup (priv->members,
 159                                                GUINT_TO_POINTER (handle));
 160                 if (contact == NULL) {
 161                         continue;
 162                 }
 163
 164                 DEBUG ("Contact %s (%d) added to group %s",
 165                         empathy_contact_get_id (contact), handle, group_name);
 166                 g_signal_emit_by_name (list, "groups-changed", contact,
 167                                        group_name,
 168                                        TRUE);
 169         }
 170 }
 171
 172 static void
 173 tp_contact_list_group_members_changed_cb (TpChannel     *channel,
 174                                           gchar         *message,
 175                                           GArray        *added,
 176                                           GArray        *removed,
 177                                           GArray        *local_pending,
 178                                           GArray        *remote_pending,
 179                                           guint          actor,
 180                                           guint          reason,
 181                                           EmpathyTpContactList *list)
 182 {
 183         EmpathyTpContactListPriv  *priv = GET_PRIV (list);
 184         const gchar *group_name;
 185         guint i;
 186
 187         contacts_added_to_group (list, channel, added);
 188
 189         group_name = tp_channel_get_identifier (channel);
 190
 191         for (i = 0; i < removed->len; i++) {
 192                 EmpathyContact *contact;
 193                 TpHandle handle;
 194
 195                 handle = g_array_index (removed, TpHandle, i);
 196                 contact = g_hash_table_lookup (priv->members,
 197                                                GUINT_TO_POINTER (handle));
 198                 if (contact == NULL) {
 199                         continue;
 200                 }
 201
 202                 DEBUG ("Contact %s (%d) removed from group %s",
 203                         empathy_contact_get_id (contact), handle, group_name);
 204
 205                 g_signal_emit_by_name (list, "groups-changed", contact,
 206                                        group_name,
 207                                        FALSE);
 208         }
 209 }
 210
 211 static void
 212 tp_contact_list_group_ready_cb (TpChannel *channel,
 213                                 const GError *error,
 214                                 gpointer list)
 215 {
 216         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 217         TpChannel *old_group;
 218         const gchar *group_name;
 219         const TpIntSet *members;
 220         GArray *arr;
 221
 222         if (error) {
 223                 DEBUG ("Error: %s", error->message);
 224                 g_object_unref (channel);
 225                 return;
 226         }
 227
 228         group_name = tp_channel_get_identifier (channel);
 229
 230         /* If there's already a group with this name in the table, we can't
 231          * just let it be replaced. Replacing it causes it to be unreffed,
 232          * which causes it to be invalidated (see
 233          * <https://bugs.freedesktop.org/show_bug.cgi?id=22119>), which causes
 234          * it to be removed from the hash table again, which causes it to be
 235          * unreffed again.
 236          */
 237         old_group = g_hash_table_lookup (priv->groups, group_name);
 238
 239         if (old_group != NULL) {
 240                 DEBUG ("Discarding old group %s (%p)", group_name, old_group);
 241                 g_hash_table_steal (priv->groups, group_name);
 242                 tp_contact_list_forget_group (list, old_group);
 243                 g_object_unref (old_group);
 244         }
 245
 246         g_hash_table_insert (priv->groups, (gpointer) group_name, channel);
 247         DEBUG ("Group %s added", group_name);
 248
 249         g_signal_connect (channel, "group-members-changed",
 250                           G_CALLBACK (tp_contact_list_group_members_changed_cb),
 251                           list);
 252
 253         g_signal_connect (channel, "invalidated",
 254                           G_CALLBACK (tp_contact_list_group_invalidated_cb),
 255                           list);
 256
 257         if (priv->add_to_group) {
 258                 GArray *handles;
 259
 260                 handles = g_hash_table_lookup (priv->add_to_group, group_name);
 261                 if (handles) {
 262                         DEBUG ("Adding initial members to group %s", group_name);
 263                         tp_cli_channel_interface_group_call_add_members (channel,
 264                                 -1, handles, NULL, NULL, NULL, NULL, NULL);
 265                         g_hash_table_remove (priv->add_to_group, group_name);
 266                 }
 267         }
 268
 269         /* Get initial members of the group */
 270         members = tp_channel_group_get_members (channel);
 271         g_assert (members != NULL);
 272         arr = tp_intset_to_array (members);
 273         contacts_added_to_group (list, channel, arr);
 274         g_array_free (arr, TRUE);
 275 }
 276
 277 static void
 278 tp_contact_list_group_add_channel (EmpathyTpContactList *list,
 279                                    const gchar          *object_path,
 280                                    GHashTable           *properties)
 281 {
 282         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 283         TpChannel                *channel;
 284         GError *error = NULL;
 285
 286         channel = tp_channel_new_from_properties (priv->connection,
 287                                   object_path, properties, &error);
 288         if (channel == NULL) {
 289                 DEBUG ("Failed to create group channel: %s", error->message);
 290                 g_error_free (error);
 291                 return;
 292         }
 293
 294         /* Give the ref to the callback */
 295         tp_channel_call_when_ready (channel,
 296                                     tp_contact_list_group_ready_cb,
 297                                     list);
 298 }
 299
 300 static void
 301 tp_contact_list_group_request_channel_cb (TpConnection *connection,
 302                                           const gchar  *object_path,
 303                                           const GError *error,
 304                                           gpointer      user_data,
 305                                           GObject      *list)
 306 {
 307         /* The new channel will be handled in NewChannel cb. Here we only
 308          * handle the error if RequestChannel failed */
 309         if (error) {
 310                 DEBUG ("Error: %s", error->message);
 311                 return;
 312         }
 313 }
 314
 315 static void
 316 tp_contact_list_group_request_handles_cb (TpConnection *connection,
 317                                           const GArray *handles,
 318                                           const GError *error,
 319                                           gpointer      user_data,
 320                                           GObject      *list)
 321 {
 322         TpHandle channel_handle;
 323
 324         if (error) {
 325                 DEBUG ("Error: %s", error->message);
 326                 return;
 327         }
 328
 329         channel_handle = g_array_index (handles, TpHandle, 0);
 330         tp_cli_connection_call_request_channel (connection, -1,
 331                                                 TP_IFACE_CHANNEL_TYPE_CONTACT_LIST,
 332                                                 TP_HANDLE_TYPE_GROUP,
 333                                                 channel_handle,
 334                                                 TRUE,
 335                                                 tp_contact_list_group_request_channel_cb,
 336                                                 NULL, NULL,
 337                                                 list);
 338 }
 339
 340 /* This function takes ownership of handles array */
 341 static void
 342 tp_contact_list_group_add (EmpathyTpContactList *list,
 343                            const gchar          *group_name,
 344                            GArray               *handles)
 345 {
 346         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 347         TpChannel                *channel;
 348         const gchar              *names[] = {group_name, NULL};
 349
 350         /* Search the channel for that group name */
 351         channel = g_hash_table_lookup (priv->groups, group_name);
 352         if (channel) {
 353                 tp_cli_channel_interface_group_call_add_members (channel, -1,
 354                         handles, NULL, NULL, NULL, NULL, NULL);
 355                 g_array_free (handles, TRUE);
 356                 return;
 357         }
 358
 359         /* That group does not exist yet, we have to:
 360          * 1) Request an handle for the group name
 361          * 2) Request a channel
 362          * 3) When NewChannel is emitted, add handles in members
 363          */
 364         g_hash_table_insert (priv->add_to_group,
 365                              g_strdup (group_name),
 366                              handles);
 367         tp_cli_connection_call_request_handles (priv->connection, -1,
 368                                                 TP_HANDLE_TYPE_GROUP, names,
 369                                                 tp_contact_list_group_request_handles_cb,
 370                                                 NULL, NULL,
 371                                                 G_OBJECT (list));
 372 }
 373
 374 static void
 375 got_added_members_cb (EmpathyTpContactFactory *factory,
 376                       guint                    n_contacts,
 377                       EmpathyContact * const * contacts,
 378                       guint                    n_failed,
 379                       const TpHandle          *failed,
 380                       const GError            *error,
 381                       gpointer                 user_data,
 382                       GObject                 *list)
 383 {
 384         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 385         guint i;
 386
 387         if (error) {
 388                 DEBUG ("Error: %s", error->message);
 389                 return;
 390         }
 391
 392         for (i = 0; i < n_contacts; i++) {
 393                 EmpathyContact *contact = contacts[i];
 394                 TpHandle handle = empathy_contact_get_handle (contact);
 395
 396                 if (g_hash_table_lookup (priv->members, GUINT_TO_POINTER (handle)))
 397                         continue;
 398
 399                 /* Add to the list and emit signal */
 400                 g_hash_table_insert (priv->members, GUINT_TO_POINTER (handle),
 401                                      g_object_ref (contact));
 402                 g_signal_emit_by_name (list, "members-changed", contact,
 403                                        0, 0, NULL, TRUE);
 404         }
 405 }
 406
 407 static void
 408 add_to_members (EmpathyTpContactList *list,
 409                 GArray *handles)
 410 {
 411         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 412         GArray *request;
 413         guint i;
 414
 415         if (handles->len == 0)
 416                 return;
 417
 418         request = g_array_new (FALSE, FALSE, sizeof (TpHandle));
 419
 420         for (i = 0; i < handles->len; i++) {
 421                 TpHandle handle = g_array_index (handles, TpHandle, i);
 422
 423                 if (g_hash_table_lookup (priv->members, GUINT_TO_POINTER (handle)))
 424                         continue;
 425
 426                 g_array_append_val (request, handle);
 427         }
 428
 429         if (request->len > 0) {
 430                         empathy_tp_contact_factory_get_from_handles (priv->factory,
 431                                 request->len, (TpHandle *) request->data,
 432                                 got_added_members_cb, NULL, NULL, G_OBJECT (list));
 433         }
 434
 435         g_array_free (request, TRUE);
 436 }
 437
 438 static void
 439 tp_contact_list_got_local_pending_cb (EmpathyTpContactFactory *factory,
 440                                       guint                    n_contacts,
 441                                       EmpathyContact * const * contacts,
 442                                       guint                    n_failed,
 443                                       const TpHandle          *failed,
 444                                       const GError            *error,
 445                                       gpointer                 user_data,
 446                                       GObject                 *list)
 447 {
 448         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 449         guint i;
 450
 451         if (error) {
 452                 DEBUG ("Error: %s", error->message);
 453                 return;
 454         }
 455
 456         for (i = 0; i < n_contacts; i++) {
 457                 EmpathyContact *contact = contacts[i];
 458                 TpHandle handle;
 459                 const gchar *message;
 460                 TpChannelGroupChangeReason reason;
 461
 462                 handle = empathy_contact_get_handle (contact);
 463                 if (g_hash_table_lookup (priv->members, GUINT_TO_POINTER (handle))) {
 464                         GArray handles = {(gchar *) &handle, 1};
 465
 466                         /* This contact is already member, auto accept. */
 467                         tp_cli_channel_interface_group_call_add_members (priv->publish,
 468                                 -1, &handles, NULL, NULL, NULL, NULL, NULL);
 469                 }
 470                 else if (tp_channel_group_get_local_pending_info (priv->publish,
 471                                                                   handle,
 472                                                                   NULL,
 473                                                                   &reason,
 474                                                                   &message)) {
 475                         /* Add contact to pendings */
 476                         g_hash_table_insert (priv->pendings, GUINT_TO_POINTER (handle),
 477                                              g_object_ref (contact));
 478                         g_signal_emit_by_name (list, "pendings-changed", contact,
 479                                                contact, reason, message, TRUE);
 480                 }
 481         }
 482 }
 483
 484 static void
 485 tp_contact_list_remove_handle (EmpathyTpContactList *list,
 486                                GHashTable *table,
 487                                TpHandle handle)
 488 {
 489         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 490         EmpathyContact *contact;
 491         const gchar *sig;
 492
 493         if (table == priv->pendings)
 494                 sig = "pendings-changed";
 495         else if (table == priv->members)
 496                 sig = "members-changed";
 497         else
 498                 return;
 499
 500         contact = g_hash_table_lookup (table, GUINT_TO_POINTER (handle));
 501         if (contact) {
 502                 g_object_ref (contact);
 503                 g_hash_table_remove (table, GUINT_TO_POINTER (handle));
 504                 g_signal_emit_by_name (list, sig, contact, 0, 0, NULL,
 505                                        FALSE);
 506                 g_object_unref (contact);
 507         }
 508 }
 509
 510 static void
 511 remove_from_member_if_needed (EmpathyTpContactList *list,
 512                               TpHandle handle)
 513 {
 514         /* remove contact from members if it's not in publish and subscribe */
 515         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 516         const TpIntSet *members;
 517
 518         members = tp_channel_group_get_members (priv->subscribe);
 519         if (tp_intset_is_member (members, handle))
 520                 return;
 521
 522         members = tp_channel_group_get_remote_pending (priv->subscribe);
 523         if (tp_intset_is_member (members, handle))
 524                 return;
 525
 526         members = tp_channel_group_get_members (priv->publish);
 527         if (tp_intset_is_member (members, handle))
 528                 return;
 529
 530         tp_contact_list_remove_handle (list, priv->members, handle);
 531 }
 532
 533 static void
 534 tp_contact_list_publish_group_members_changed_cb (TpChannel     *channel,
 535                                                   gchar         *message,
 536                                                   GArray        *added,
 537                                                   GArray        *removed,
 538                                                   GArray        *local_pending,
 539                                                   GArray        *remote_pending,
 540                                                   TpHandle       actor,
 541                                                   TpChannelGroupChangeReason reason,
 542                                                   EmpathyTpContactList *list)
 543 {
 544         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 545         guint i;
 546
 547         /* We now send our presence to those contacts, remove them from pendings */
 548         add_to_members (list, added);
 549         for (i = 0; i < added->len; i++) {
 550                 tp_contact_list_remove_handle (list, priv->pendings,
 551                         g_array_index (added, TpHandle, i));
 552         }
 553
 554         /* We refuse to send our presence to those contacts, remove from pendings */
 555         for (i = 0; i < removed->len; i++) {
 556                 TpHandle handle = g_array_index (removed, TpHandle, i);
 557
 558                 tp_contact_list_remove_handle (list, priv->pendings, handle);
 559                 remove_from_member_if_needed (list, handle);
 560         }
 561
 562         /* Those contacts want our presence, auto accept those that are already
 563          * member, otherwise add in pendings. */
 564         if (local_pending->len > 0) {
 565                 empathy_tp_contact_factory_get_from_handles (priv->factory,
 566                         local_pending->len, (TpHandle *) local_pending->data,
 567                         tp_contact_list_got_local_pending_cb, NULL, NULL,
 568                         G_OBJECT (list));
 569         }
 570 }
 571
 572 static void
 573 tp_contact_list_get_alias_flags_cb (TpConnection *connection,
 574                                     guint         flags,
 575                                     const GError *error,
 576                                     gpointer      user_data,
 577                                     GObject      *list)
 578 {
 579         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 580
 581         if (error) {
 582                 DEBUG ("Error: %s", error->message);
 583                 return;
 584         }
 585
 586         if (flags & TP_CONNECTION_ALIAS_FLAG_USER_SET) {
 587                 priv->flags |= EMPATHY_CONTACT_LIST_CAN_ALIAS;
 588         }
 589 }
 590
 591 static void
 592 tp_contact_list_get_requestablechannelclasses_cb (TpProxy      *connection,
 593                                                   const GValue *value,
 594                                                   const GError *error,
 595                                                   gpointer      user_data,
 596                                                   GObject      *list)
 597 {
 598         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 599         GPtrArray *classes;
 600         guint i;
 601
 602         if (error) {
 603                 DEBUG ("Error: %s", error->message);
 604                 return;
 605         }
 606
 607         classes = g_value_get_boxed (value);
 608         for (i = 0; i < classes->len; i++) {
 609                 GValueArray *class = g_ptr_array_index (classes, i);
 610                 GHashTable *props;
 611                 const char *channel_type;
 612                 guint handle_type;
 613
 614                 props = g_value_get_boxed (g_value_array_get_nth (class, 0));
 615
 616                 channel_type = tp_asv_get_string (props,
 617                                 TP_IFACE_CHANNEL ".ChannelType");
 618                 handle_type = tp_asv_get_uint32 (props,
 619                                 TP_IFACE_CHANNEL ".TargetHandleType", NULL);
 620
 621                 if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_CONTACT_LIST) &&
 622                     handle_type == TP_HANDLE_TYPE_GROUP) {
 623                         DEBUG ("Got channel class for a contact group");
 624                         priv->flags |= EMPATHY_CONTACT_LIST_CAN_GROUP;
 625                         break;
 626                 }
 627         }
 628 }
 629
 630 static void
 631 tp_contact_list_subscribe_group_members_changed_cb (TpChannel     *channel,
 632                                                     gchar         *message,
 633                                                     GArray        *added,
 634                                                     GArray        *removed,
 635                                                     GArray        *local_pending,
 636                                                     GArray        *remote_pending,
 637                                                     guint          actor,
 638                                                     guint          reason,
 639                                                     EmpathyTpContactList *list)
 640 {
 641         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 642         guint i;
 643         GArray *accept;
 644
 645         /* We now get the presence of those contacts, add them to members */
 646         add_to_members (list, added);
 647
 648         /* Those contacts refuse to send us their presence, remove from members. */
 649         for (i = 0; i < removed->len; i++) {
 650                 remove_from_member_if_needed (list, g_array_index (removed, TpHandle, i));
 651         }
 652
 653         /* We want those contacts in our contact list but we don't get their
 654          * presence yet. Add to members anyway. */
 655         add_to_members (list, remote_pending);
 656
 657         /* Implicitly accept pending request of contacts which are now members. */
 658         accept = g_array_new (FALSE, FALSE, sizeof (TpHandle));
 659         for (i = 0; i < added->len; i++) {
 660                 TpHandle handle = g_array_index (added, TpHandle, i);
 661
 662                 if (g_hash_table_lookup (priv->pendings, GUINT_TO_POINTER (handle)) != NULL)
 663                         g_array_append_val (accept, handle);
 664         }
 665
 666         for (i = 0; i < remote_pending->len; i++) {
 667                 TpHandle handle = g_array_index (added, TpHandle, i);
 668
 669                 if (g_hash_table_lookup (priv->pendings, GUINT_TO_POINTER (handle)) != NULL)
 670                         g_array_append_val (accept, handle);
 671         }
 672
 673         tp_cli_channel_interface_group_call_add_members (priv->publish,
 674                 -1, accept, NULL, NULL, NULL, NULL, NULL);
 675
 676         g_array_free (accept, TRUE);
 677 }
 678
 679 static void
 680 tp_contact_list_store_group_members_changed_cb (TpChannel     *channel,
 681                                                 gchar         *message,
 682                                                 GArray        *added,
 683                                                 GArray        *removed,
 684                                                 GArray        *local_pending,
 685                                                 GArray        *remote_pending,
 686                                                 guint          actor,
 687                                                 guint          reason,
 688                                                 EmpathyTpContactList *list)
 689 {
 690         guint i;
 691
 692         add_to_members (list, added);
 693
 694         for (i = 0; i < removed->len; i++) {
 695                 remove_from_member_if_needed (list, g_array_index (removed, TpHandle, i));
 696         }
 697 }
 698
 699 static void
 700 tp_contact_list_finalize (GObject *object)
 701 {
 702         EmpathyTpContactListPriv *priv;
 703         EmpathyTpContactList     *list;
 704         GHashTableIter            iter;
 705         gpointer                  channel;
 706
 707         list = EMPATHY_TP_CONTACT_LIST (object);
 708         priv = GET_PRIV (list);
 709
 710         DEBUG ("finalize: %p", object);
 711
 712         if (priv->subscribe) {
 713                 g_object_unref (priv->subscribe);
 714         }
 715         if (priv->publish) {
 716                 g_object_unref (priv->publish);
 717         }
 718         if (priv->stored) {
 719                 g_object_unref (priv->stored);
 720         }
 721
 722         if (priv->connection) {
 723                 g_object_unref (priv->connection);
 724         }
 725
 726         if (priv->factory) {
 727                 g_object_unref (priv->factory);
 728         }
 729
 730         g_hash_table_iter_init (&iter, priv->groups);
 731         while (g_hash_table_iter_next (&iter, NULL, &channel)) {
 732                 g_signal_handlers_disconnect_by_func (channel,
 733                         tp_contact_list_group_invalidated_cb, list);
 734         }
 735
 736         g_hash_table_destroy (priv->groups);
 737         g_hash_table_destroy (priv->members);
 738         g_hash_table_destroy (priv->pendings);
 739         g_hash_table_destroy (priv->add_to_group);
 740
 741         G_OBJECT_CLASS (empathy_tp_contact_list_parent_class)->finalize (object);
 742 }
 743
 744 static void
 745 got_list_channel (EmpathyTpContactList *list,
 746                   TpChannel *channel)
 747 {
 748         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 749         const gchar *id;
 750
 751         /* We requested that channel by providing TargetID property, so it's
 752          * guaranteed that tp_channel_get_identifier will return it. */
 753         id = tp_channel_get_identifier (channel);
 754
 755         /* TpChannel emits initial set of members just before being ready */
 756         if (!tp_strdiff (id, "stored")) {
 757                 if (priv->stored != NULL)
 758                         return;
 759                 priv->stored = g_object_ref (channel);
 760                 g_signal_connect (priv->stored, "group-members-changed",
 761                                   G_CALLBACK (tp_contact_list_store_group_members_changed_cb),
 762                                   list);
 763         } else if (!tp_strdiff (id, "publish")) {
 764                 if (priv->publish != NULL)
 765                         return;
 766                 priv->publish = g_object_ref (channel);
 767                 g_signal_connect (priv->publish, "group-members-changed",
 768                                   G_CALLBACK (tp_contact_list_publish_group_members_changed_cb),
 769                                   list);
 770         } else if (!tp_strdiff (id, "subscribe")) {
 771                 if (priv->subscribe != NULL)
 772                         return;
 773                 priv->subscribe = g_object_ref (channel);
 774                 g_signal_connect (priv->subscribe, "group-members-changed",
 775                                   G_CALLBACK (tp_contact_list_subscribe_group_members_changed_cb),
 776                                   list);
 777         }
 778 }
 779
 780 static void
 781 list_ensure_channel_cb (TpConnection *conn,
 782                         gboolean yours,
 783                         const gchar *path,
 784                         GHashTable *properties,
 785                         const GError *error,
 786                         gpointer user_data,
 787                         GObject *weak_object)
 788 {
 789         EmpathyTpContactList *list = user_data;
 790         TpChannel *channel;
 791
 792         if (error != NULL) {
 793                 DEBUG ("failed: %s\n", error->message);
 794                 return;
 795         }
 796
 797         channel = tp_channel_new_from_properties (conn, path, properties, NULL);
 798         got_list_channel (list, channel);
 799         g_object_unref (channel);
 800 }
 801
 802 static void
 803 new_channels_cb (TpConnection *conn,
 804                  const GPtrArray *channels,
 805                  gpointer user_data,
 806                  GObject *weak_object)
 807 {
 808         EmpathyTpContactList *list = EMPATHY_TP_CONTACT_LIST (weak_object);
 809         guint i;
 810
 811         for (i = 0; i < channels->len ; i++) {
 812                 GValueArray *arr = g_ptr_array_index (channels, i);
 813                 const gchar *path;
 814                 GHashTable *properties;
 815                 TpHandleType handle_type;
 816
 817                 path = g_value_get_boxed (g_value_array_get_nth (arr, 0));
 818                 properties = g_value_get_boxed (g_value_array_get_nth (arr, 1));
 819
 820                 if (tp_strdiff (tp_asv_get_string (properties,
 821                                 TP_IFACE_CHANNEL ".ChannelType"),
 822                     TP_IFACE_CHANNEL_TYPE_CONTACT_LIST))
 823                         return;
 824
 825                 if (tp_asv_get_string (properties, TP_IFACE_CHANNEL ".TargetID") == NULL)
 826                         return;
 827
 828                 handle_type = tp_asv_get_uint32 (properties,
 829                         TP_IFACE_CHANNEL ".TargetHandleType", NULL);
 830
 831                 if (handle_type == TP_HANDLE_TYPE_GROUP) {
 832                                 tp_contact_list_group_add_channel (list, path, properties);
 833                 }
 834         }
 835 }
 836
 837 static void
 838 got_channels_cb (TpProxy *conn,
 839                  const GValue *out,
 840                  const GError *error,
 841                  gpointer user_data,
 842                  GObject *weak_object)
 843 {
 844         EmpathyTpContactList *list = EMPATHY_TP_CONTACT_LIST (weak_object);
 845         guint i;
 846         const GPtrArray *channels;
 847
 848         if (error != NULL) {
 849                 DEBUG ("Get Channels property failed: %s", error->message);
 850                 return;
 851         }
 852
 853         channels = g_value_get_boxed (out);
 854         for (i = 0; i < channels->len ; i++) {
 855                 GValueArray *arr = g_ptr_array_index (channels, i);
 856                 const gchar *path;
 857                 GHashTable *properties;
 858
 859                 path = g_value_get_boxed (g_value_array_get_nth (arr, 0));
 860                 properties = g_value_get_boxed (g_value_array_get_nth (arr, 1));
 861
 862                 if (tp_strdiff (tp_asv_get_string (properties,
 863                                 TP_IFACE_CHANNEL ".ChannelType"),
 864                     TP_IFACE_CHANNEL_TYPE_CONTACT_LIST))
 865                         continue;
 866
 867                 if (tp_asv_get_uint32 (properties,
 868                     TP_IFACE_CHANNEL ".TargetHandleType", NULL) != TP_HANDLE_TYPE_GROUP)
 869                     continue;
 870
 871                 tp_contact_list_group_add_channel (list, path, properties);
 872         }
 873 }
 874
 875 static void
 876 conn_ready_cb (TpConnection *connection,
 877                const GError *error,
 878                gpointer data)
 879 {
 880         EmpathyTpContactList *list = data;
 881         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 882         GHashTable *request;
 883
 884         if (error != NULL) {
 885                 DEBUG ("failed: %s", error->message);
 886                 goto out;
 887         }
 888
 889         /* Look for existing group channels */
 890         tp_cli_dbus_properties_call_get (connection, -1,
 891                 TP_IFACE_CONNECTION_INTERFACE_REQUESTS, "Channels", got_channels_cb,
 892                 NULL, NULL, G_OBJECT (list));
 893
 894         request = tp_asv_new (
 895                 TP_IFACE_CHANNEL ".ChannelType", G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_CONTACT_LIST,
 896                 TP_IFACE_CHANNEL ".TargetHandleType", G_TYPE_UINT, TP_HANDLE_TYPE_LIST,
 897                 NULL);
 898
 899         /* Watch the NewChannels signal so if ensuring list channels fails (for
 900          * example because the server is slow and the D-Bus call timeouts before CM
 901          * fetches the roster), we have a chance to get them later. */
 902         tp_cli_connection_interface_requests_connect_to_new_channels (
 903                 priv->connection, new_channels_cb, NULL, NULL, G_OBJECT (list), NULL);
 904
 905         /* Request the 'stored' list. */
 906         tp_asv_set_static_string (request, TP_IFACE_CHANNEL ".TargetID", "stored");
 907         tp_cli_connection_interface_requests_call_ensure_channel (priv->connection,
 908                 G_MAXINT, request, list_ensure_channel_cb, list, NULL, G_OBJECT (list));
 909
 910         /* Request the 'publish' list. */
 911         tp_asv_set_static_string (request, TP_IFACE_CHANNEL ".TargetID", "publish");
 912         tp_cli_connection_interface_requests_call_ensure_channel (priv->connection,
 913                 G_MAXINT, request, list_ensure_channel_cb, list, NULL, G_OBJECT (list));
 914
 915         /* Request the 'subscribe' list. */
 916         tp_asv_set_static_string (request, TP_IFACE_CHANNEL ".TargetID", "subscribe");
 917         tp_cli_connection_interface_requests_call_ensure_channel (priv->connection,
 918                 G_MAXINT, request, list_ensure_channel_cb, list, NULL, G_OBJECT (list));
 919
 920         g_hash_table_unref (request);
 921 out:
 922         g_object_unref (list);
 923 }
 924
 925 static void
 926 tp_contact_list_constructed (GObject *list)
 927 {
 928         EmpathyTpContactListPriv *priv = GET_PRIV (list);
 929
 930         priv->factory = empathy_tp_contact_factory_dup_singleton (priv->connection);
 931
 932         /* call GetAliasFlags */
 933         if (tp_proxy_has_interface_by_id (priv->connection,
 934                                 TP_IFACE_QUARK_CONNECTION_INTERFACE_ALIASING)) {
 935                 tp_cli_connection_interface_aliasing_call_get_alias_flags (
 936                                 priv->connection,
 937                                 -1,
 938                                 tp_contact_list_get_alias_flags_cb,
 939                                 NULL, NULL,
 940                                 G_OBJECT (list));
 941         }
 942
 943         /* lookup RequestableChannelClasses */
 944         if (tp_proxy_has_interface_by_id (priv->connection,
 945                                 TP_IFACE_QUARK_CONNECTION_INTERFACE_REQUESTS)) {
 946                 tp_cli_dbus_properties_call_get (priv->connection,
 947                                 -1,
 948                                 TP_IFACE_CONNECTION_INTERFACE_REQUESTS,
 949                                 "RequestableChannelClasses",
 950                                 tp_contact_list_get_requestablechannelclasses_cb,
 951                                 NULL, NULL,
 952                                 G_OBJECT (list));
 953         } else {
 954                 /* we just don't know... better mark the flag just in case */
 955                 priv->flags |= EMPATHY_CONTACT_LIST_CAN_GROUP;
 956         }
 957
 958         tp_connection_call_when_ready (priv->connection, conn_ready_cb,
 959                 g_object_ref (list));
 960 }
 961
 962 static void
 963 tp_contact_list_get_property (GObject    *object,
 964                               guint       param_id,
 965                               GValue     *value,
 966                               GParamSpec *pspec)
 967 {
 968         EmpathyTpContactListPriv *priv = GET_PRIV (object);
 969
 970         switch (param_id) {
 971         case PROP_CONNECTION:
 972                 g_value_set_object (value, priv->connection);
 973                 break;
 974         default:
 975                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 976                 break;
 977         };
 978 }
 979
 980 static void
 981 tp_contact_list_set_property (GObject      *object,
 982                               guint         param_id,
 983                               const GValue *value,
 984                               GParamSpec   *pspec)
 985 {
 986         EmpathyTpContactListPriv *priv = GET_PRIV (object);
 987
 988         switch (param_id) {
 989         case PROP_CONNECTION:
 990                 priv->connection = g_value_dup_object (value);
 991                 break;
 992         default:
 993                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 994                 break;
 995         };
 996 }
 997
 998 static void
 999 empathy_tp_contact_list_class_init (EmpathyTpContactListClass *klass)
1000 {
1001         GObjectClass *object_class = G_OBJECT_CLASS (klass);
1002
1003         object_class->finalize = tp_contact_list_finalize;
1004         object_class->constructed = tp_contact_list_constructed;
1005         object_class->get_property = tp_contact_list_get_property;
1006         object_class->set_property = tp_contact_list_set_property;
1007
1008         g_object_class_install_property (object_class,
1009                                          PROP_CONNECTION,
1010                                          g_param_spec_object ("connection",
1011                                                               "The Connection",
1012                                                               "The connection associated with the contact list",
1013                                                               TP_TYPE_CONNECTION,
1014                                                               G_PARAM_READWRITE |
1015                                                               G_PARAM_CONSTRUCT_ONLY));
1016
1017         g_type_class_add_private (object_class, sizeof (EmpathyTpContactListPriv));
1018 }
1019
1020 static void
1021 tp_contact_list_array_free (gpointer handles)
1022 {
1023         g_array_free (handles, TRUE);
1024 }
1025
1026 static void
1027 empathy_tp_contact_list_init (EmpathyTpContactList *list)
1028 {
1029         EmpathyTpContactListPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (list,
1030                 EMPATHY_TYPE_TP_CONTACT_LIST, EmpathyTpContactListPriv);
1031
1032         list->priv = priv;
1033
1034         /* Map group's name to group's TpChannel. The group name string is owned
1035          * by the TpChannel object */
1036         priv->groups = g_hash_table_new_full (g_str_hash, g_str_equal,
1037                                               NULL,
1038                                               (GDestroyNotify) g_object_unref);
1039
1040         /* Map contact's handle to EmpathyContact object */
1041         priv->members = g_hash_table_new_full (g_direct_hash, g_direct_equal,
1042                                                NULL,
1043                                                (GDestroyNotify) g_object_unref);
1044
1045         /* Map contact's handle to EmpathyContact object */
1046         priv->pendings = g_hash_table_new_full (g_direct_hash, g_direct_equal,
1047                                                 NULL,
1048                                                 (GDestroyNotify) g_object_unref);
1049
1050         /* Map group's name to GArray of handle */
1051         priv->add_to_group = g_hash_table_new_full (g_str_hash, g_str_equal,
1052                                                     g_free,
1053                                                     tp_contact_list_array_free);
1054 }
1055
1056 EmpathyTpContactList *
1057 empathy_tp_contact_list_new (TpConnection *connection)
1058 {
1059         return g_object_new (EMPATHY_TYPE_TP_CONTACT_LIST,
1060                              "connection", connection,
1061                              NULL);
1062 }
1063
1064 TpConnection *
1065 empathy_tp_contact_list_get_connection (EmpathyTpContactList *list)
1066 {
1067         EmpathyTpContactListPriv *priv;
1068
1069         g_return_val_if_fail (EMPATHY_IS_TP_CONTACT_LIST (list), NULL);
1070
1071         priv = GET_PRIV (list);
1072
1073         return priv->connection;
1074 }
1075
1076 static void
1077 tp_contact_list_add (EmpathyContactList *list,
1078                      EmpathyContact     *contact,
1079                      const gchar        *message)
1080 {
1081         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1082         TpHandle handle;
1083         GArray handles = {(gchar *) &handle, 1};
1084
1085         handle = empathy_contact_get_handle (contact);
1086         if (priv->subscribe) {
1087                 tp_cli_channel_interface_group_call_add_members (priv->subscribe,
1088                         -1, &handles, message, NULL, NULL, NULL, NULL);
1089         }
1090         if (priv->publish) {
1091                 TpChannelGroupFlags flags = tp_channel_group_get_flags (priv->subscribe);
1092                 if (flags & TP_CHANNEL_GROUP_FLAG_CAN_ADD ||
1093                     g_hash_table_lookup (priv->pendings, GUINT_TO_POINTER (handle))) {
1094                         tp_cli_channel_interface_group_call_add_members (priv->publish,
1095                                 -1, &handles, message, NULL, NULL, NULL, NULL);
1096                 }
1097         }
1098 }
1099
1100 static void
1101 tp_contact_list_remove (EmpathyContactList *list,
1102                         EmpathyContact     *contact,
1103                         const gchar        *message)
1104 {
1105         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1106         TpHandle handle;
1107         GArray handles = {(gchar *) &handle, 1};
1108
1109         handle = empathy_contact_get_handle (contact);
1110
1111         /* FIXME: this is racy if tp_contact_list_remove is called before the
1112          * 'stored' list has been retrieved. */
1113         if (priv->stored != NULL) {
1114                 tp_cli_channel_interface_group_call_remove_members (priv->stored,
1115                         -1, &handles, message, NULL, NULL, NULL, NULL);
1116         }
1117
1118         if (priv->subscribe) {
1119                 tp_cli_channel_interface_group_call_remove_members (priv->subscribe,
1120                         -1, &handles, message, NULL, NULL, NULL, NULL);
1121         }
1122         if (priv->publish) {
1123                 tp_cli_channel_interface_group_call_remove_members (priv->publish,
1124                         -1, &handles, message, NULL, NULL, NULL, NULL);
1125         }
1126 }
1127
1128 static GList *
1129 tp_contact_list_get_members (EmpathyContactList *list)
1130 {
1131         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1132         GList *ret;
1133
1134         ret = g_hash_table_get_values (priv->members);
1135         g_list_foreach (ret, (GFunc) g_object_ref, NULL);
1136         return ret;
1137 }
1138
1139 static GList *
1140 tp_contact_list_get_pendings (EmpathyContactList *list)
1141 {
1142         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1143         GList *ret;
1144
1145         ret = g_hash_table_get_values (priv->pendings);
1146         g_list_foreach (ret, (GFunc) g_object_ref, NULL);
1147         return ret;
1148 }
1149
1150 static GList *
1151 tp_contact_list_get_all_groups (EmpathyContactList *list)
1152 {
1153         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1154         GList                    *ret, *l;
1155
1156         ret = g_hash_table_get_keys (priv->groups);
1157         for (l = ret; l; l = l->next) {
1158                 l->data = g_strdup (l->data);
1159         }
1160
1161         return ret;
1162 }
1163
1164 static GList *
1165 tp_contact_list_get_groups (EmpathyContactList *list,
1166                             EmpathyContact     *contact)
1167 {
1168         EmpathyTpContactListPriv  *priv = GET_PRIV (list);
1169         GList                     *ret = NULL;
1170         GHashTableIter             iter;
1171         gpointer                   group_name;
1172         gpointer                   channel;
1173         TpHandle                   handle;
1174
1175         handle = empathy_contact_get_handle (contact);
1176         g_hash_table_iter_init (&iter, priv->groups);
1177         while (g_hash_table_iter_next (&iter, &group_name, &channel)) {
1178                 const TpIntSet *members;
1179
1180                 members = tp_channel_group_get_members (channel);
1181                 if (tp_intset_is_member (members, handle)) {
1182                         ret = g_list_prepend (ret, g_strdup (group_name));
1183                 }
1184         }
1185
1186         return ret;
1187 }
1188
1189 static void
1190 tp_contact_list_add_to_group (EmpathyContactList *list,
1191                               EmpathyContact     *contact,
1192                               const gchar        *group_name)
1193 {
1194         TpHandle handle;
1195         GArray *handles;
1196
1197         handle = empathy_contact_get_handle (contact);
1198         handles = g_array_sized_new (FALSE, FALSE, sizeof (TpHandle), 1);
1199         g_array_append_val (handles, handle);
1200         tp_contact_list_group_add (EMPATHY_TP_CONTACT_LIST (list),
1201                                    group_name, handles);
1202 }
1203
1204 static void
1205 tp_contact_list_remove_from_group (EmpathyContactList *list,
1206                                    EmpathyContact     *contact,
1207                                    const gchar        *group_name)
1208 {
1209         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1210         TpChannel                *channel;
1211         TpHandle                  handle;
1212         GArray                    handles = {(gchar *) &handle, 1};
1213
1214         channel = g_hash_table_lookup (priv->groups, group_name);
1215         if (channel == NULL) {
1216                 return;
1217         }
1218
1219         handle = empathy_contact_get_handle (contact);
1220         DEBUG ("remove contact %s (%d) from group %s",
1221                 empathy_contact_get_id (contact), handle, group_name);
1222
1223         tp_cli_channel_interface_group_call_remove_members (channel, -1,
1224                 &handles, NULL, NULL, NULL, NULL, NULL);
1225 }
1226
1227 static void
1228 tp_contact_list_rename_group (EmpathyContactList *list,
1229                               const gchar        *old_group_name,
1230                               const gchar        *new_group_name)
1231 {
1232         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1233         TpChannel                *channel;
1234         const TpIntSet           *members;
1235         GArray                   *handles;
1236
1237         channel = g_hash_table_lookup (priv->groups, old_group_name);
1238         if (channel == NULL) {
1239                 return;
1240         }
1241
1242         DEBUG ("rename group %s to %s", old_group_name, new_group_name);
1243
1244         /* Remove all members and close the old channel */
1245         members = tp_channel_group_get_members (channel);
1246         handles = tp_intset_to_array (members);
1247         tp_cli_channel_interface_group_call_remove_members (channel, -1,
1248                 handles, NULL, NULL, NULL, NULL, NULL);
1249         tp_cli_channel_call_close (channel, -1, NULL, NULL, NULL, NULL);
1250
1251         tp_contact_list_group_add (EMPATHY_TP_CONTACT_LIST (list),
1252                                    new_group_name, handles);
1253 }
1254
1255 static void
1256 tp_contact_list_remove_group (EmpathyContactList *list,
1257                               const gchar *group_name)
1258 {
1259         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1260         TpChannel                *channel;
1261         const TpIntSet           *members;
1262         GArray                   *handles;
1263
1264         channel = g_hash_table_lookup (priv->groups, group_name);
1265         if (channel == NULL) {
1266                 return;
1267         }
1268
1269         DEBUG ("remove group %s", group_name);
1270
1271         /* Remove all members and close the channel */
1272         members = tp_channel_group_get_members (channel);
1273         handles = tp_intset_to_array (members);
1274         tp_cli_channel_interface_group_call_remove_members (channel, -1,
1275                 handles, NULL, NULL, NULL, NULL, NULL);
1276         tp_cli_channel_call_close (channel, -1, NULL, NULL, NULL, NULL);
1277         g_array_free (handles, TRUE);
1278 }
1279
1280 static EmpathyContactListFlags
1281 tp_contact_list_get_flags (EmpathyContactList *list)
1282 {
1283         EmpathyTpContactListPriv *priv;
1284         EmpathyContactListFlags flags;
1285
1286         g_return_val_if_fail (EMPATHY_IS_TP_CONTACT_LIST (list), FALSE);
1287
1288         priv = GET_PRIV (list);
1289         flags = priv->flags;
1290
1291         if (priv->subscribe != NULL) {
1292                 TpChannelGroupFlags group_flags;
1293
1294                 group_flags = tp_channel_group_get_flags (priv->subscribe);
1295
1296                 if (group_flags & TP_CHANNEL_GROUP_FLAG_CAN_ADD) {
1297                         flags |= EMPATHY_CONTACT_LIST_CAN_ADD;
1298                 }
1299
1300                 if (group_flags & TP_CHANNEL_GROUP_FLAG_CAN_REMOVE) {
1301                         flags |= EMPATHY_CONTACT_LIST_CAN_REMOVE;
1302                 }
1303         }
1304
1305         return flags;
1306 }
1307
1308 static void
1309 tp_contact_list_iface_init (EmpathyContactListIface *iface)
1310 {
1311         iface->add               = tp_contact_list_add;
1312         iface->remove            = tp_contact_list_remove;
1313         iface->get_members       = tp_contact_list_get_members;
1314         iface->get_pendings      = tp_contact_list_get_pendings;
1315         iface->get_all_groups    = tp_contact_list_get_all_groups;
1316         iface->get_groups        = tp_contact_list_get_groups;
1317         iface->add_to_group      = tp_contact_list_add_to_group;
1318         iface->remove_from_group = tp_contact_list_remove_from_group;
1319         iface->rename_group      = tp_contact_list_rename_group;
1320         iface->remove_group      = tp_contact_list_remove_group;
1321         iface->get_flags         = tp_contact_list_get_flags;
1322 }
1323
1324 void
1325 empathy_tp_contact_list_remove_all (EmpathyTpContactList *list)
1326 {
1327         EmpathyTpContactListPriv *priv = GET_PRIV (list);
1328         GHashTableIter            iter;
1329         gpointer                  contact;
1330
1331         g_return_if_fail (EMPATHY_IS_TP_CONTACT_LIST (list));
1332
1333         /* Remove all contacts */
1334         g_hash_table_iter_init (&iter, priv->members);
1335         while (g_hash_table_iter_next (&iter, NULL, &contact)) {
1336                 g_signal_emit_by_name (list, "members-changed", contact,
1337                                        NULL, 0, NULL,
1338                                        FALSE);
1339         }
1340         g_hash_table_remove_all (priv->members);
1341
1342         g_hash_table_iter_init (&iter, priv->pendings);
1343         while (g_hash_table_iter_next (&iter, NULL, &contact)) {
1344                 g_signal_emit_by_name (list, "pendings-changed", contact,
1345                                        NULL, 0, NULL,
1346                                        FALSE);
1347         }
1348         g_hash_table_remove_all (priv->pendings);
1349 }
1350