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