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
  36 #include <extensions/extensions.h>
  37
  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 EmpathyEventManager * manager_singleton = NULL;
  75
  76 static void event_remove (EventPriv *event);
  77
  78 static void
  79 event_free (EventPriv *event)
  80 {
  81         g_free (event->public.icon_name);
  82         g_free (event->public.message);
  83
  84         if (event->public.contact) {
  85                 g_object_unref (event->public.contact);
  86         }
  87
  88         if (event->channel) {
  89                 g_signal_handlers_disconnect_by_func (event->channel,
  90                                                       event_remove,
  91                                                       event);
  92                 g_object_unref (event->channel);
  93         }
  94         g_slice_free (EventPriv, event);
  95 }
  96
  97 static void
  98 event_remove (EventPriv *event)
  99 {
 100         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 101
 102         DEBUG ("Removing event %p", event);
 103         priv->events = g_slist_remove (priv->events, event);
 104         g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
 105         event_free (event);
 106 }
 107
 108 static void
 109 event_manager_add (EmpathyEventManager *manager,
 110                    EmpathyContact      *contact,
 111                    const gchar         *icon_name,
 112                    const gchar         *message,
 113                    TpChannel           *channel,
 114                    EventFunc            func,
 115                    gpointer             user_data)
 116 {
 117         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 118         EventPriv               *event;
 119
 120         event = g_slice_new0 (EventPriv);
 121         event->public.contact = contact ? g_object_ref (contact) : NULL;
 122         event->public.icon_name = g_strdup (icon_name);
 123         event->public.message = g_strdup (message);
 124         event->manager = manager;
 125         event->func = func;
 126         event->user_data = user_data;
 127
 128         if (channel) {
 129                 event->channel = g_object_ref (channel);
 130                 g_signal_connect_swapped (channel, "invalidated",
 131                                           G_CALLBACK (event_remove),
 132                                           event);
 133         }
 134
 135         DEBUG ("Adding event %p", event);
 136         priv->events = g_slist_prepend (priv->events, event);
 137         g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
 138 }
 139
 140 static void
 141 event_channel_process_func (EventPriv *event)
 142 {
 143         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 144
 145         /* This will emit "dispatch-channel" and the event will be removed
 146          * in the callback of that signal, no need to remove the event here. */
 147         empathy_dispatcher_channel_process (priv->dispatcher, event->channel);
 148 }
 149
 150 static gboolean
 151 event_manager_chat_unref_idle (gpointer user_data)
 152 {
 153         g_object_unref (user_data);
 154         return FALSE;
 155 }
 156
 157 static void
 158 event_manager_chat_message_received_cb (EmpathyTpChat       *tp_chat,
 159                                         EmpathyMessage      *message,
 160                                         EmpathyEventManager *manager)
 161 {
 162         EmpathyContact  *sender;
 163         gchar           *msg;
 164         TpChannel       *channel;
 165
 166         g_idle_add (event_manager_chat_unref_idle, tp_chat);
 167         g_signal_handlers_disconnect_by_func (tp_chat,
 168                                               event_manager_chat_message_received_cb,
 169                                               manager);
 170
 171         sender = empathy_message_get_sender (message);
 172         msg = g_strdup_printf (_("New message from %s:\n%s"),
 173                                empathy_contact_get_name (sender),
 174                                empathy_message_get_body (message));
 175
 176         channel = empathy_tp_chat_get_channel (tp_chat);
 177         event_manager_add (manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
 178                            channel, event_channel_process_func, NULL);
 179
 180         g_free (msg);
 181 }
 182
 183 static void
 184 event_manager_filter_channel_cb (EmpathyDispatcher   *dispatcher,
 185                                  TpChannel           *channel,
 186                                  EmpathyEventManager *manager)
 187 {
 188         gchar *channel_type;
 189
 190         g_object_get (channel, "channel-type", &channel_type, NULL);
 191         if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) {
 192                 EmpathyTpChat *tp_chat;
 193
 194                 tp_chat = empathy_tp_chat_new (channel);
 195                 g_signal_connect (tp_chat, "message-received",
 196                                   G_CALLBACK (event_manager_chat_message_received_cb),
 197                                   manager);
 198         }
 199         else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) {
 200                 EmpathyTpGroup *tp_group;
 201                 EmpathyContact *contact;
 202                 gchar          *msg;
 203
 204                 tp_group = empathy_tp_group_new (channel);
 205                 empathy_run_until_ready (tp_group);
 206                 empathy_tp_group_get_invitation (tp_group, &contact);
 207                 empathy_contact_run_until_ready (contact,
 208                                                  EMPATHY_CONTACT_READY_NAME,
 209                                                  NULL);
 210
 211                 msg = g_strdup_printf (_("Incoming call from %s"),
 212                                        empathy_contact_get_name (contact));
 213
 214                 event_manager_add (manager, contact, EMPATHY_IMAGE_VOIP, msg,
 215                                    channel, event_channel_process_func, NULL);
 216
 217                 g_free (msg);
 218                 g_object_unref (contact);
 219                 g_object_unref (tp_group);
 220         }
 221         else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER)) {
 222                 EmpathyContact        *contact;
 223                 gchar                 *msg;
 224                 TpHandle               handle;
 225                 McAccount             *account;
 226                 EmpathyContactFactory *factory;
 227
 228                 factory = empathy_contact_factory_dup_singleton ();
 229                 handle = tp_channel_get_handle (channel, NULL);
 230                 account = empathy_channel_get_account (channel);
 231
 232                 contact = empathy_contact_factory_get_from_handle (factory,
 233                                                                    account,
 234                                                                    handle);
 235
 236                 empathy_contact_run_until_ready (contact,
 237                         EMPATHY_CONTACT_READY_NAME, NULL);
 238
 239                 msg = g_strdup_printf (_("Incoming file transfer from %s"),
 240                                        empathy_contact_get_name (contact));
 241
 242                 event_manager_add (manager, contact,
 243                                    EMPATHY_IMAGE_DOCUMENT_SEND,
 244                                    msg, channel,
 245                                    event_channel_process_func, NULL);
 246
 247                 g_object_unref (factory);
 248                 g_object_unref (account);
 249         }
 250
 251         g_free (channel_type);
 252 }
 253
 254 static void
 255 event_manager_dispatch_channel_cb (EmpathyDispatcher   *dispatcher,
 256                                    TpChannel           *channel,
 257                                    EmpathyEventManager *manager)
 258 {
 259         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 260         GSList                  *l;
 261
 262         for (l = priv->events; l; l = l->next) {
 263                 EventPriv *event = l->data;
 264
 265                 if (event->channel &&
 266                     empathy_proxy_equal (channel, event->channel)) {
 267                         event_remove (event);
 268                         break;
 269                 }
 270         }
 271 }
 272
 273 #define TUBE_NO_APP_MESSAGE _("%s is offering you an invitation, but " \
 274                               "you don't have the needed external " \
 275                               "application to handle it.")
 276
 277 static void
 278 event_tube_process_func (EventPriv *event)
 279 {
 280         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 281         EmpathyDispatcherTube   *tube = (EmpathyDispatcherTube*) event->user_data;
 282
 283         if (tube->activatable) {
 284                 empathy_dispatcher_tube_process (priv->dispatcher, tube);
 285         } else {
 286                 GtkWidget *dialog;
 287                 gchar     *str;
 288
 289                 /* Tell the user that the tube can't be handled */
 290                 str = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 291                                        empathy_contact_get_name (tube->initiator));
 292
 293                 dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
 294                                                  GTK_MESSAGE_ERROR,
 295                                                  GTK_BUTTONS_OK,
 296                                                  "%s", str);
 297                 gtk_window_set_title (GTK_WINDOW (dialog),
 298                                       _("Invitation Error"));
 299                 g_free (str);
 300
 301                 gtk_widget_show (dialog);
 302                 g_signal_connect (dialog, "response",
 303                                   G_CALLBACK (gtk_widget_destroy),
 304                                   NULL);
 305         }
 306
 307         empathy_dispatcher_tube_unref (tube);
 308         event_remove (event);
 309 }
 310
 311 static void
 312 event_manager_filter_tube_cb (EmpathyDispatcher     *dispatcher,
 313                               EmpathyDispatcherTube *tube,
 314                               EmpathyEventManager   *manager)
 315 {
 316         const gchar *icon_name;
 317         gchar       *msg;
 318
 319         empathy_contact_run_until_ready (tube->initiator,
 320                                          EMPATHY_CONTACT_READY_NAME, NULL);
 321
 322         if (tube->activatable) {
 323                 icon_name = GTK_STOCK_EXECUTE;
 324                 msg = g_strdup_printf (_("%s is offering you an invitation. An external "
 325                                          "application will be started to handle it."),
 326                                        empathy_contact_get_name (tube->initiator));
 327         } else {
 328                 icon_name = GTK_STOCK_DIALOG_ERROR;
 329                 msg = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 330                                        empathy_contact_get_name (tube->initiator));
 331         }
 332
 333         event_manager_add (manager, tube->initiator, icon_name, msg,
 334                            tube->channel, event_tube_process_func,
 335                            empathy_dispatcher_tube_ref (tube));
 336
 337         g_free (msg);
 338 }
 339
 340 static void
 341 event_pending_subscribe_func (EventPriv *event)
 342 {
 343         empathy_subscription_dialog_show (event->public.contact, NULL);
 344         event_remove (event);
 345 }
 346
 347 static void
 348 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 349                                    EmpathyContact      *contact,
 350                                    EmpathyContact      *actor,
 351                                    guint                reason,
 352                                    gchar               *message,
 353                                    gboolean             is_pending,
 354                                    EmpathyEventManager *manager)
 355 {
 356         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 357         GString                 *str;
 358
 359         if (!is_pending) {
 360                 GSList *l;
 361
 362                 for (l = priv->events; l; l = l->next) {
 363                         EventPriv *event = l->data;
 364
 365                         if (event->public.contact == contact &&
 366                             event->func == event_pending_subscribe_func) {
 367                                 event_remove (event);
 368                                 break;
 369                         }
 370                 }
 371
 372                 return;
 373         }
 374
 375         empathy_contact_run_until_ready (contact,
 376                                          EMPATHY_CONTACT_READY_NAME,
 377                                          NULL);
 378
 379         str = g_string_new (NULL);
 380         g_string_printf (str, _("Subscription requested by %s"),
 381                          empathy_contact_get_name (contact));
 382         if (!G_STR_EMPTY (message)) {
 383                 g_string_append_printf (str, _("\nMessage: %s"), message);
 384         }
 385
 386         event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 387                            NULL, event_pending_subscribe_func, NULL);
 388
 389         g_string_free (str, TRUE);
 390 }
 391
 392 static GObject *
 393 event_manager_constructor (GType type,
 394                            guint n_props,
 395                            GObjectConstructParam *props)
 396 {
 397         GObject *retval;
 398
 399         if (manager_singleton) {
 400                 retval = g_object_ref (manager_singleton);
 401         } else {
 402                 retval = G_OBJECT_CLASS (empathy_event_manager_parent_class)->constructor
 403                         (type, n_props, props);
 404                 g_object_add_weak_pointer (retval, (gpointer *) &retval);
 405
 406                 manager_singleton = EMPATHY_EVENT_MANAGER (retval);
 407         }
 408
 409         return retval;
 410 }
 411
 412 static void
 413 event_manager_finalize (GObject *object)
 414 {
 415         EmpathyEventManagerPriv *priv = GET_PRIV (object);
 416
 417         g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 418         g_slist_free (priv->events);
 419         g_object_unref (priv->contact_manager);
 420         g_object_unref (priv->dispatcher);
 421 }
 422
 423 static void
 424 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 425 {
 426         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 427
 428         object_class->finalize = event_manager_finalize;
 429         object_class->constructor = event_manager_constructor;
 430
 431         signals[EVENT_ADDED] =
 432                 g_signal_new ("event-added",
 433                               G_TYPE_FROM_CLASS (klass),
 434                               G_SIGNAL_RUN_LAST,
 435                               0,
 436                               NULL, NULL,
 437                               g_cclosure_marshal_VOID__POINTER,
 438                               G_TYPE_NONE,
 439                               1, G_TYPE_POINTER);
 440
 441         signals[EVENT_REMOVED] =
 442                 g_signal_new ("event-removed",
 443                               G_TYPE_FROM_CLASS (klass),
 444                               G_SIGNAL_RUN_LAST,
 445                               0,
 446                               NULL, NULL,
 447                               g_cclosure_marshal_VOID__POINTER,
 448                               G_TYPE_NONE,
 449                               1, G_TYPE_POINTER);
 450
 451         g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 452 }
 453
 454 static void
 455 empathy_event_manager_init (EmpathyEventManager *manager)
 456 {
 457         EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 458                 EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 459
 460         manager->priv = priv;
 461
 462         priv->dispatcher = empathy_dispatcher_new ();
 463         priv->contact_manager = empathy_contact_manager_dup_singleton ();
 464         g_signal_connect (priv->dispatcher, "filter-channel",
 465                           G_CALLBACK (event_manager_filter_channel_cb),
 466                           manager);
 467         g_signal_connect (priv->dispatcher, "dispatch-channel",
 468                           G_CALLBACK (event_manager_dispatch_channel_cb),
 469                           manager);
 470         g_signal_connect (priv->dispatcher, "filter-tube",
 471                           G_CALLBACK (event_manager_filter_tube_cb),
 472                           manager);
 473         g_signal_connect (priv->contact_manager, "pendings-changed",
 474                           G_CALLBACK (event_manager_pendings_changed_cb),
 475                           manager);
 476 }
 477
 478 EmpathyEventManager *
 479 empathy_event_manager_dup_singleton (void)
 480 {
 481         return g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 482 }
 483
 484 GSList *
 485 empathy_event_manager_get_events (EmpathyEventManager *manager)
 486 {
 487         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 488
 489         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 490
 491         return priv->events;
 492 }
 493
 494 EmpathyEvent *
 495 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 496 {
 497         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 498
 499         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 500
 501         return priv->events ? priv->events->data : NULL;
 502 }
 503
 504 void
 505 empathy_event_activate (EmpathyEvent *event_public)
 506 {
 507         EventPriv *event = (EventPriv*) event_public;
 508
 509         g_return_if_fail (event_public != NULL);
 510
 511         if (event->func) {
 512                 event->func (event);
 513         } else {
 514                 event_remove (event);
 515         }
 516 }
 517