src/empathy-event-manager.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Xavier Claessens <xclaesse@gmail.com>
  20  */
  21
  22 #include <config.h>
  23
  24 #include <string.h>
  25 #include <glib/gi18n.h>
  26
  27 #include <telepathy-glib/util.h>
  28
  29 #include <libempathy/empathy-dispatcher.h>
  30 #include <libempathy/empathy-contact-factory.h>
  31 #include <libempathy/empathy-contact-manager.h>
  32 #include <libempathy/empathy-tp-chat.h>
  33 #include <libempathy/empathy-tp-group.h>
  34 #include <libempathy/empathy-utils.h>
  35 #include <libempathy/empathy-tp-file.h>
  36
  37 #include <libempathy-gtk/empathy-ft-manager.h>
  38 #include <libempathy-gtk/empathy-images.h>
  39 #include <libempathy-gtk/empathy-contact-dialogs.h>
  40
  41 #include "empathy-event-manager.h"
  42
  43 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  44 #include <libempathy/empathy-debug.h>
  45
  46 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyEventManager)
  47 typedef struct {
  48         EmpathyDispatcher     *dispatcher;
  49         EmpathyContactManager *contact_manager;
  50         GSList                *events;
  51 } EmpathyEventManagerPriv;
  52
  53 typedef struct _EventPriv EventPriv;
  54 typedef void (*EventFunc) (EventPriv *event);
  55
  56 struct _EventPriv {
  57         EmpathyEvent         public;
  58         TpChannel           *channel;
  59         EmpathyEventManager *manager;
  60         EventFunc            func;
  61         gpointer             user_data;
  62 };
  63
  64 enum {
  65         EVENT_ADDED,
  66         EVENT_REMOVED,
  67         LAST_SIGNAL
  68 };
  69
  70 static guint signals[LAST_SIGNAL];
  71
  72 G_DEFINE_TYPE (EmpathyEventManager, empathy_event_manager, G_TYPE_OBJECT);
  73
  74 static void event_remove (EventPriv *event);
  75
  76 static void
  77 event_free (EventPriv *event)
  78 {
  79         g_free (event->public.icon_name);
  80         g_free (event->public.message);
  81
  82         if (event->public.contact) {
  83                 g_object_unref (event->public.contact);
  84         }
  85
  86         if (event->channel) {
  87                 g_signal_handlers_disconnect_by_func (event->channel,
  88                                                       event_remove,
  89                                                       event);
  90                 g_object_unref (event->channel);
  91         }
  92         g_slice_free (EventPriv, event);
  93 }
  94
  95 static void
  96 event_remove (EventPriv *event)
  97 {
  98         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
  99
 100         DEBUG ("Removing event %p", event);
 101         priv->events = g_slist_remove (priv->events, event);
 102         g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
 103         event_free (event);
 104 }
 105
 106 static void
 107 event_manager_add (EmpathyEventManager *manager,
 108                    EmpathyContact      *contact,
 109                    const gchar         *icon_name,
 110                    const gchar         *message,
 111                    TpChannel           *channel,
 112                    EventFunc            func,
 113                    gpointer             user_data)
 114 {
 115         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 116         EventPriv               *event;
 117
 118         event = g_slice_new0 (EventPriv);
 119         event->public.contact = contact ? g_object_ref (contact) : NULL;
 120         event->public.icon_name = g_strdup (icon_name);
 121         event->public.message = g_strdup (message);
 122         event->manager = manager;
 123         event->func = func;
 124         event->user_data = user_data;
 125
 126         if (channel) {
 127                 event->channel = g_object_ref (channel);
 128                 g_signal_connect_swapped (channel, "invalidated",
 129                                           G_CALLBACK (event_remove),
 130                                           event);
 131         }
 132
 133         DEBUG ("Adding event %p", event);
 134         priv->events = g_slist_prepend (priv->events, event);
 135         g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
 136 }
 137
 138 static void
 139 event_channel_process_func (EventPriv *event)
 140 {
 141         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 142
 143         /* This will emit "dispatch-channel" and the event will be removed
 144          * in the callback of that signal, no need to remove the event here. */
 145         empathy_dispatcher_channel_process (priv->dispatcher, event->channel);
 146 }
 147
 148 static gboolean
 149 event_manager_chat_unref_idle (gpointer user_data)
 150 {
 151         g_object_unref (user_data);
 152         return FALSE;
 153 }
 154
 155 static void
 156 event_manager_chat_message_received_cb (EmpathyTpChat       *tp_chat,
 157                                         EmpathyMessage      *message,
 158                                         EmpathyEventManager *manager)
 159 {
 160         EmpathyContact  *sender;
 161         gchar           *msg;
 162         TpChannel       *channel;
 163
 164         g_idle_add (event_manager_chat_unref_idle, tp_chat);
 165         g_signal_handlers_disconnect_by_func (tp_chat,
 166                                               event_manager_chat_message_received_cb,
 167                                               manager);
 168
 169         sender = empathy_message_get_sender (message);
 170         msg = g_strdup_printf (_("New message from %s:\n%s"),
 171                                empathy_contact_get_name (sender),
 172                                empathy_message_get_body (message));
 173
 174         channel = empathy_tp_chat_get_channel (tp_chat);
 175         event_manager_add (manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
 176                            channel, event_channel_process_func, NULL);
 177
 178         g_free (msg);
 179 }
 180
 181 static void
 182 event_manager_filter_channel_cb (EmpathyDispatcher   *dispatcher,
 183                                  TpChannel           *channel,
 184                                  EmpathyEventManager *manager)
 185 {
 186         gchar *channel_type;
 187
 188         g_object_get (channel, "channel-type", &channel_type, NULL);
 189         if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) {
 190                 EmpathyTpChat *tp_chat;
 191
 192                 tp_chat = empathy_tp_chat_new (channel);
 193                 g_signal_connect (tp_chat, "message-received",
 194                                   G_CALLBACK (event_manager_chat_message_received_cb),
 195                                   manager);
 196         }
 197         else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) {
 198                 EmpathyTpGroup *tp_group;
 199                 EmpathyContact *contact;
 200                 gchar          *msg;
 201
 202                 tp_group = empathy_tp_group_new (channel);
 203                 empathy_run_until_ready (tp_group);
 204                 empathy_tp_group_get_invitation (tp_group, &contact);
 205                 empathy_contact_run_until_ready (contact,
 206                                                  EMPATHY_CONTACT_READY_NAME,
 207                                                  NULL);
 208
 209                 msg = g_strdup_printf (_("Incoming call from %s"),
 210                                        empathy_contact_get_name (contact));
 211
 212                 event_manager_add (manager, contact, EMPATHY_IMAGE_VOIP, msg,
 213                                    channel, event_channel_process_func, NULL);
 214
 215                 g_free (msg);
 216                 g_object_unref (contact);
 217                 g_object_unref (tp_group);
 218         }
 219         else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER)) {
 220                 EmpathyContact        *contact;
 221                 gchar                 *msg;
 222                 TpHandle               handle;
 223                 McAccount             *account;
 224                 EmpathyContactFactory *factory;
 225
 226                 factory = empathy_contact_factory_new ();
 227                 handle = tp_channel_get_handle (channel, NULL);
 228                 account = empathy_channel_get_account (channel);
 229
 230                 contact = empathy_contact_factory_get_from_handle (factory,
 231                                                                    account,
 232                                                                    handle);
 233
 234                 empathy_contact_run_until_ready (contact,
 235                         EMPATHY_CONTACT_READY_NAME, NULL);
 236
 237                 msg = g_strdup_printf (_("Incoming file transfer from %s"),
 238                                        empathy_contact_get_name (contact));
 239
 240                 event_manager_add (manager, contact,
 241                                    EMPATHY_IMAGE_DOCUMENT_SEND,
 242                                    msg, channel,
 243                                    event_channel_process_func, NULL);
 244
 245                 g_object_unref (factory);
 246                 g_object_unref (account);
 247         }
 248
 249         g_free (channel_type);
 250 }
 251
 252 static void
 253 event_manager_dispatch_channel_cb (EmpathyDispatcher   *dispatcher,
 254                                    TpChannel           *channel,
 255                                    EmpathyEventManager *manager)
 256 {
 257         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 258         GSList                  *l;
 259
 260         for (l = priv->events; l; l = l->next) {
 261                 EventPriv *event = l->data;
 262
 263                 if (event->channel &&
 264                     empathy_proxy_equal (channel, event->channel)) {
 265                         event_remove (event);
 266                         break;
 267                 }
 268         }
 269 }
 270
 271 #define TUBE_NO_APP_MESSAGE _("%s is offering you an invitation, but " \
 272                               "you don't have the needed external " \
 273                               "application to handle it.")
 274
 275 static void
 276 event_tube_process_func (EventPriv *event)
 277 {
 278         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 279         EmpathyDispatcherTube   *tube = (EmpathyDispatcherTube*) event->user_data;
 280
 281         if (tube->activatable) {
 282                 empathy_dispatcher_tube_process (priv->dispatcher, tube);
 283         } else {
 284                 GtkWidget *dialog;
 285                 gchar     *str;
 286
 287                 /* Tell the user that the tube can't be handled */
 288                 str = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 289                                        empathy_contact_get_name (tube->initiator));
 290
 291                 dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
 292                                                  GTK_MESSAGE_ERROR,
 293                                                  GTK_BUTTONS_OK,
 294                                                  "%s", str);
 295                 gtk_window_set_title (GTK_WINDOW (dialog),
 296                                       _("Invitation Error"));
 297                 g_free (str);
 298
 299                 gtk_widget_show (dialog);
 300                 g_signal_connect (dialog, "response",
 301                                   G_CALLBACK (gtk_widget_destroy),
 302                                   NULL);
 303         }
 304
 305         empathy_dispatcher_tube_unref (tube);
 306         event_remove (event);
 307 }
 308
 309 static void
 310 event_manager_filter_tube_cb (EmpathyDispatcher     *dispatcher,
 311                               EmpathyDispatcherTube *tube,
 312                               EmpathyEventManager   *manager)
 313 {
 314         const gchar *icon_name;
 315         gchar       *msg;
 316
 317         empathy_contact_run_until_ready (tube->initiator,
 318                                          EMPATHY_CONTACT_READY_NAME, NULL);
 319
 320         if (tube->activatable) {
 321                 icon_name = GTK_STOCK_EXECUTE;
 322                 msg = g_strdup_printf (_("%s is offering you an invitation. An external "
 323                                          "application will be started to handle it."),
 324                                        empathy_contact_get_name (tube->initiator));
 325         } else {
 326                 icon_name = GTK_STOCK_DIALOG_ERROR;
 327                 msg = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 328                                        empathy_contact_get_name (tube->initiator));
 329         }
 330
 331         event_manager_add (manager, tube->initiator, icon_name, msg,
 332                            tube->channel, event_tube_process_func,
 333                            empathy_dispatcher_tube_ref (tube));
 334
 335         g_free (msg);
 336 }
 337
 338 static void
 339 event_pending_subscribe_func (EventPriv *event)
 340 {
 341         empathy_subscription_dialog_show (event->public.contact, NULL);
 342         event_remove (event);
 343 }
 344
 345 static void
 346 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 347                                    EmpathyContact      *contact,
 348                                    EmpathyContact      *actor,
 349                                    guint                reason,
 350                                    gchar               *message,
 351                                    gboolean             is_pending,
 352                                    EmpathyEventManager *manager)
 353 {
 354         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 355         GString                 *str;
 356
 357         if (!is_pending) {
 358                 GSList *l;
 359
 360                 for (l = priv->events; l; l = l->next) {
 361                         EventPriv *event = l->data;
 362
 363                         if (event->public.contact == contact &&
 364                             event->func == event_pending_subscribe_func) {
 365                                 event_remove (event);
 366                                 break;
 367                         }
 368                 }
 369
 370                 return;
 371         }
 372
 373         empathy_contact_run_until_ready (contact,
 374                                          EMPATHY_CONTACT_READY_NAME,
 375                                          NULL);
 376
 377         str = g_string_new (NULL);
 378         g_string_printf (str, _("Subscription requested by %s"),
 379                          empathy_contact_get_name (contact));
 380         if (!G_STR_EMPTY (message)) {
 381                 g_string_append_printf (str, _("\nMessage: %s"), message);
 382         }
 383
 384         event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 385                            NULL, event_pending_subscribe_func, NULL);
 386
 387         g_string_free (str, TRUE);
 388 }
 389
 390 static void
 391 event_manager_finalize (GObject *object)
 392 {
 393         EmpathyEventManagerPriv *priv = GET_PRIV (object);
 394
 395         g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 396         g_slist_free (priv->events);
 397         g_object_unref (priv->contact_manager);
 398         g_object_unref (priv->dispatcher);
 399 }
 400
 401 static void
 402 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 403 {
 404         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 405
 406         object_class->finalize = event_manager_finalize;
 407
 408         signals[EVENT_ADDED] =
 409                 g_signal_new ("event-added",
 410                               G_TYPE_FROM_CLASS (klass),
 411                               G_SIGNAL_RUN_LAST,
 412                               0,
 413                               NULL, NULL,
 414                               g_cclosure_marshal_VOID__POINTER,
 415                               G_TYPE_NONE,
 416                               1, G_TYPE_POINTER);
 417
 418         signals[EVENT_REMOVED] =
 419                 g_signal_new ("event-removed",
 420                               G_TYPE_FROM_CLASS (klass),
 421                               G_SIGNAL_RUN_LAST,
 422                               0,
 423                               NULL, NULL,
 424                               g_cclosure_marshal_VOID__POINTER,
 425                               G_TYPE_NONE,
 426                               1, G_TYPE_POINTER);
 427
 428         g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 429 }
 430
 431 static void
 432 empathy_event_manager_init (EmpathyEventManager *manager)
 433 {
 434         EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 435                 EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 436
 437         manager->priv = priv;
 438
 439         priv->dispatcher = empathy_dispatcher_new ();
 440         priv->contact_manager = empathy_contact_manager_new ();
 441         g_signal_connect (priv->dispatcher, "filter-channel",
 442                           G_CALLBACK (event_manager_filter_channel_cb),
 443                           manager);
 444         g_signal_connect (priv->dispatcher, "dispatch-channel",
 445                           G_CALLBACK (event_manager_dispatch_channel_cb),
 446                           manager);
 447         g_signal_connect (priv->dispatcher, "filter-tube",
 448                           G_CALLBACK (event_manager_filter_tube_cb),
 449                           manager);
 450         g_signal_connect (priv->contact_manager, "pendings-changed",
 451                           G_CALLBACK (event_manager_pendings_changed_cb),
 452                           manager);
 453 }
 454
 455 EmpathyEventManager *
 456 empathy_event_manager_new (void)
 457 {
 458         static EmpathyEventManager *manager = NULL;
 459
 460         if (!manager) {
 461                 manager = g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 462                 g_object_add_weak_pointer (G_OBJECT (manager), (gpointer) &manager);
 463         } else {
 464                 g_object_ref (manager);
 465         }
 466
 467         return manager;
 468 }
 469
 470 GSList *
 471 empathy_event_manager_get_events (EmpathyEventManager *manager)
 472 {
 473         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 474
 475         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 476
 477         return priv->events;
 478 }
 479
 480 EmpathyEvent *
 481 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 482 {
 483         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 484
 485         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 486
 487         return priv->events ? priv->events->data : NULL;
 488 }
 489
 490 void
 491 empathy_event_activate (EmpathyEvent *event_public)
 492 {
 493         EventPriv *event = (EventPriv*) event_public;
 494
 495         g_return_if_fail (event_public != NULL);
 496
 497         if (event->func) {
 498                 event->func (event);
 499         } else {
 500                 event_remove (event);
 501         }
 502 }
 503