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