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-tp-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_channel_file_process_func (EventPriv *event)
 182 {
 183         EmpathyFTManager *manager;
 184         EmpathyTpFile    *tp_file = (EmpathyTpFile *) event->user_data;
 185
 186         manager = empathy_ft_manager_get_default ();
 187         empathy_ft_manager_add_tp_file (manager, tp_file);
 188         event_remove (event);
 189 }
 190
 191 static void
 192 file_channel_state_cb (TpProxy      *proxy,
 193                        const GValue *state,
 194                        const GError *error,
 195                        gpointer      user_data,
 196                        GObject      *weak_object)
 197 {
 198         TpChannel           *channel = (TpChannel *) weak_object;
 199         EmpathyEventManager *manager = (EmpathyEventManager *) user_data;
 200
 201         if (error) {
 202                 DEBUG ("Error: %s", error->message);
 203                 return;
 204         }
 205
 206         /* Only deal with incoming channels */
 207         if (g_value_get_uint (state) ==
 208             EMP_FILE_TRANSFER_STATE_LOCAL_PENDING) {
 209                 EmpathyContact *contact;
 210                 gchar          *msg;
 211                 EmpathyTpFile  *tp_file;
 212
 213                 tp_file = empathy_tp_file_new (channel);
 214
 215                 contact = empathy_tp_file_get_contact (tp_file);
 216                 empathy_contact_run_until_ready (contact,
 217                         EMPATHY_CONTACT_READY_NAME, NULL);
 218
 219                 msg = g_strdup_printf (_("Incoming file transfer from %s"),
 220                                        empathy_contact_get_name (contact));
 221
 222                 event_manager_add (manager, contact,
 223                                    EMPATHY_IMAGE_DOCUMENT_SEND,
 224                                    msg,
 225                                    channel,
 226                                    event_channel_file_process_func,
 227                                    tp_file);
 228
 229                 g_free (msg);
 230         }
 231 }
 232
 233 static void
 234 event_manager_filter_channel_cb (EmpathyDispatcher   *dispatcher,
 235                                  TpChannel           *channel,
 236                                  EmpathyEventManager *manager)
 237 {
 238         gchar *channel_type;
 239
 240         g_object_get (channel, "channel-type", &channel_type, NULL);
 241         if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) {
 242                 EmpathyTpChat *tp_chat;
 243
 244                 tp_chat = empathy_tp_chat_new (channel);
 245                 g_signal_connect (tp_chat, "message-received",
 246                                   G_CALLBACK (event_manager_chat_message_received_cb),
 247                                   manager);
 248         }
 249         else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) {
 250                 EmpathyTpGroup *tp_group;
 251                 EmpathyContact *contact;
 252                 gchar          *msg;
 253
 254                 tp_group = empathy_tp_group_new (channel);
 255                 empathy_run_until_ready (tp_group);
 256                 empathy_tp_group_get_invitation (tp_group, &contact);
 257                 empathy_contact_run_until_ready (contact,
 258                                                  EMPATHY_CONTACT_READY_NAME,
 259                                                  NULL);
 260
 261                 msg = g_strdup_printf (_("Incoming call from %s"),
 262                                        empathy_contact_get_name (contact));
 263
 264                 event_manager_add (manager, contact, EMPATHY_IMAGE_VOIP, msg,
 265                                    channel, event_channel_process_func, NULL);
 266
 267                 g_free (msg);
 268                 g_object_unref (contact);
 269                 g_object_unref (tp_group);
 270         }
 271         else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE)) {
 272                 tp_cli_dbus_properties_call_get (channel, -1,
 273                                                  EMP_IFACE_CHANNEL_TYPE_FILE,
 274                                                  "State",
 275                                                  file_channel_state_cb,
 276                                                  manager, NULL,
 277                                                  G_OBJECT (channel));
 278         }
 279
 280         g_free (channel_type);
 281 }
 282
 283 static void
 284 event_manager_dispatch_channel_cb (EmpathyDispatcher   *dispatcher,
 285                                    TpChannel           *channel,
 286                                    EmpathyEventManager *manager)
 287 {
 288         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 289         GSList                  *l;
 290
 291         for (l = priv->events; l; l = l->next) {
 292                 EventPriv *event = l->data;
 293
 294                 if (event->channel &&
 295                     empathy_proxy_equal (channel, event->channel)) {
 296                         event_remove (event);
 297                         break;
 298                 }
 299         }
 300 }
 301
 302 #define TUBE_NO_APP_MESSAGE _("%s is offering you an invitation, but " \
 303                               "you don't have the needed external " \
 304                               "application to handle it.")
 305
 306 static void
 307 event_tube_process_func (EventPriv *event)
 308 {
 309         EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 310         EmpathyDispatcherTube   *tube = (EmpathyDispatcherTube*) event->user_data;
 311
 312         if (tube->activatable) {
 313                 empathy_dispatcher_tube_process (priv->dispatcher, tube);
 314         } else {
 315                 GtkWidget *dialog;
 316                 gchar     *str;
 317
 318                 /* Tell the user that the tube can't be handled */
 319                 str = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 320                                        empathy_contact_get_name (tube->initiator));
 321
 322                 dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
 323                                                  GTK_MESSAGE_ERROR,
 324                                                  GTK_BUTTONS_OK,
 325                                                  "%s", str);
 326                 gtk_window_set_title (GTK_WINDOW (dialog),
 327                                       _("Invitation Error"));
 328                 g_free (str);
 329
 330                 gtk_widget_show (dialog);
 331                 g_signal_connect (dialog, "response",
 332                                   G_CALLBACK (gtk_widget_destroy),
 333                                   NULL);
 334         }
 335
 336         empathy_dispatcher_tube_unref (tube);
 337         event_remove (event);
 338 }
 339
 340 static void
 341 event_manager_filter_tube_cb (EmpathyDispatcher     *dispatcher,
 342                               EmpathyDispatcherTube *tube,
 343                               EmpathyEventManager   *manager)
 344 {
 345         const gchar *icon_name;
 346         gchar       *msg;
 347
 348         empathy_contact_run_until_ready (tube->initiator,
 349                                          EMPATHY_CONTACT_READY_NAME, NULL);
 350
 351         if (tube->activatable) {
 352                 icon_name = GTK_STOCK_EXECUTE;
 353                 msg = g_strdup_printf (_("%s is offering you an invitation. An external "
 354                                          "application will be started to handle it."),
 355                                        empathy_contact_get_name (tube->initiator));
 356         } else {
 357                 icon_name = GTK_STOCK_DIALOG_ERROR;
 358                 msg = g_strdup_printf (TUBE_NO_APP_MESSAGE,
 359                                        empathy_contact_get_name (tube->initiator));
 360         }
 361
 362         event_manager_add (manager, tube->initiator, icon_name, msg,
 363                            tube->channel, event_tube_process_func,
 364                            empathy_dispatcher_tube_ref (tube));
 365
 366         g_free (msg);
 367 }
 368
 369 static void
 370 event_pending_subscribe_func (EventPriv *event)
 371 {
 372         empathy_subscription_dialog_show (event->public.contact, NULL);
 373         event_remove (event);
 374 }
 375
 376 static void
 377 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 378                                    EmpathyContact      *contact,
 379                                    EmpathyContact      *actor,
 380                                    guint                reason,
 381                                    gchar               *message,
 382                                    gboolean             is_pending,
 383                                    EmpathyEventManager *manager)
 384 {
 385         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 386         GString                 *str;
 387
 388         if (!is_pending) {
 389                 GSList *l;
 390
 391                 for (l = priv->events; l; l = l->next) {
 392                         EventPriv *event = l->data;
 393
 394                         if (event->public.contact == contact &&
 395                             event->func == event_pending_subscribe_func) {
 396                                 event_remove (event);
 397                                 break;
 398                         }
 399                 }
 400
 401                 return;
 402         }
 403
 404         empathy_contact_run_until_ready (contact,
 405                                          EMPATHY_CONTACT_READY_NAME,
 406                                          NULL);
 407
 408         str = g_string_new (NULL);
 409         g_string_printf (str, _("Subscription requested by %s"),
 410                          empathy_contact_get_name (contact));
 411         if (!G_STR_EMPTY (message)) {
 412                 g_string_append_printf (str, _("\nMessage: %s"), message);
 413         }
 414
 415         event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 416                            NULL, event_pending_subscribe_func, NULL);
 417
 418         g_string_free (str, TRUE);
 419 }
 420
 421 static void
 422 event_manager_finalize (GObject *object)
 423 {
 424         EmpathyEventManagerPriv *priv = GET_PRIV (object);
 425
 426         g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 427         g_slist_free (priv->events);
 428         g_object_unref (priv->contact_manager);
 429         g_object_unref (priv->dispatcher);
 430 }
 431
 432 static void
 433 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 434 {
 435         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 436
 437         object_class->finalize = event_manager_finalize;
 438
 439         signals[EVENT_ADDED] =
 440                 g_signal_new ("event-added",
 441                               G_TYPE_FROM_CLASS (klass),
 442                               G_SIGNAL_RUN_LAST,
 443                               0,
 444                               NULL, NULL,
 445                               g_cclosure_marshal_VOID__POINTER,
 446                               G_TYPE_NONE,
 447                               1, G_TYPE_POINTER);
 448
 449         signals[EVENT_REMOVED] =
 450                 g_signal_new ("event-removed",
 451                               G_TYPE_FROM_CLASS (klass),
 452                               G_SIGNAL_RUN_LAST,
 453                               0,
 454                               NULL, NULL,
 455                               g_cclosure_marshal_VOID__POINTER,
 456                               G_TYPE_NONE,
 457                               1, G_TYPE_POINTER);
 458
 459         g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 460 }
 461
 462 static void
 463 empathy_event_manager_init (EmpathyEventManager *manager)
 464 {
 465         EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 466                 EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 467
 468         manager->priv = priv;
 469
 470         priv->dispatcher = empathy_dispatcher_new ();
 471         priv->contact_manager = empathy_contact_manager_new ();
 472         g_signal_connect (priv->dispatcher, "filter-channel",
 473                           G_CALLBACK (event_manager_filter_channel_cb),
 474                           manager);
 475         g_signal_connect (priv->dispatcher, "dispatch-channel",
 476                           G_CALLBACK (event_manager_dispatch_channel_cb),
 477                           manager);
 478         g_signal_connect (priv->dispatcher, "filter-tube",
 479                           G_CALLBACK (event_manager_filter_tube_cb),
 480                           manager);
 481         g_signal_connect (priv->contact_manager, "pendings-changed",
 482                           G_CALLBACK (event_manager_pendings_changed_cb),
 483                           manager);
 484 }
 485
 486 EmpathyEventManager *
 487 empathy_event_manager_new (void)
 488 {
 489         static EmpathyEventManager *manager = NULL;
 490
 491         if (!manager) {
 492                 manager = g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 493                 g_object_add_weak_pointer (G_OBJECT (manager), (gpointer) &manager);
 494         } else {
 495                 g_object_ref (manager);
 496         }
 497
 498         return manager;
 499 }
 500
 501 GSList *
 502 empathy_event_manager_get_events (EmpathyEventManager *manager)
 503 {
 504         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 505
 506         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 507
 508         return priv->events;
 509 }
 510
 511 EmpathyEvent *
 512 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 513 {
 514         EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 515
 516         g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 517
 518         return priv->events ? priv->events->data : NULL;
 519 }
 520
 521 void
 522 empathy_event_activate (EmpathyEvent *event_public)
 523 {
 524         EventPriv *event = (EventPriv*) event_public;
 525
 526         g_return_if_fail (event_public != NULL);
 527
 528         if (event->func) {
 529                 event->func (event);
 530         } else {
 531                 event_remove (event);
 532         }
 533 }
 534