src/empathy-event-manager.c

   1 /*
   2  * Copyright (C) 2007-2008 Collabora Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Xavier Claessens <xclaesse@gmail.com>
  19  *          Sjoerd Simons <sjoerd.simons@collabora.co.uk>
  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-call.h>
  34 #include <libempathy/empathy-tp-group.h>
  35 #include <libempathy/empathy-utils.h>
  36
  37 #include <extensions/extensions.h>
  38
  39 #include <libempathy-gtk/empathy-images.h>
  40 #include <libempathy-gtk/empathy-contact-dialogs.h>
  41
  42 #include "empathy-event-manager.h"
  43 #include "empathy-tube-dispatch.h"
  44
  45 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  46 #include <libempathy/empathy-debug.h>
  47
  48 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyEventManager)
  49
  50 typedef struct {
  51   EmpathyEventManager *manager;
  52   EmpathyDispatchOperation *operation;
  53   gulong approved_handler;
  54   gulong claimed_handler;
  55   /* Remove contact if applicable */
  56   EmpathyContact *contact;
  57   /* Tube dispatcher if applicable */
  58   EmpathyTubeDispatch *tube_dispatch;
  59   /* option signal handler */
  60   gulong handler;
  61 } EventManagerApproval;
  62
  63 typedef struct {
  64   EmpathyDispatcher *dispatcher;
  65   EmpathyContactManager *contact_manager;
  66   GSList *events;
  67   /* Ongoing approvals */
  68   GSList *approvals;
  69 } EmpathyEventManagerPriv;
  70
  71 typedef struct _EventPriv EventPriv;
  72 typedef void (*EventFunc) (EventPriv *event);
  73
  74 struct _EventPriv {
  75   EmpathyEvent public;
  76   EmpathyEventManager *manager;
  77   EventManagerApproval *approval;
  78   EventFunc func;
  79   gpointer user_data;
  80 };
  81
  82 enum {
  83   EVENT_ADDED,
  84   EVENT_REMOVED,
  85   LAST_SIGNAL
  86 };
  87
  88 static guint signals[LAST_SIGNAL];
  89
  90 G_DEFINE_TYPE (EmpathyEventManager, empathy_event_manager, G_TYPE_OBJECT);
  91
  92 static EmpathyEventManager * manager_singleton = NULL;
  93
  94 static EventManagerApproval *
  95 event_manager_approval_new (EmpathyEventManager *manager,
  96   EmpathyDispatchOperation *operation)
  97 {
  98   EventManagerApproval *result = g_slice_new0 (EventManagerApproval);
  99   result->operation = g_object_ref (operation);
 100   result->manager = manager;
 101
 102   return result;
 103 }
 104
 105 static void
 106 event_manager_approval_free (EventManagerApproval *approval)
 107 {
 108   g_signal_handler_disconnect (approval->operation,
 109     approval->approved_handler);
 110   g_signal_handler_disconnect (approval->operation,
 111     approval->claimed_handler);
 112   g_object_unref (approval->operation);
 113
 114   if (approval->contact != NULL)
 115     g_object_unref (approval->contact);
 116
 117   if (approval->tube_dispatch != NULL)
 118     g_object_unref (approval->tube_dispatch);
 119
 120   g_slice_free (EventManagerApproval, approval);
 121 }
 122
 123 static void event_remove (EventPriv *event);
 124
 125 static void
 126 event_free (EventPriv *event)
 127 {
 128   g_free (event->public.icon_name);
 129   g_free (event->public.message);
 130
 131   if (event->public.contact)
 132     {
 133       g_object_unref (event->public.contact);
 134     }
 135
 136   g_slice_free (EventPriv, event);
 137 }
 138
 139 static void
 140 event_remove (EventPriv *event)
 141 {
 142   EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 143
 144   DEBUG ("Removing event %p", event);
 145   priv->events = g_slist_remove (priv->events, event);
 146   g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
 147   event_free (event);
 148 }
 149
 150 static void
 151 event_manager_add (EmpathyEventManager *manager, EmpathyContact      *contact,
 152   const gchar         *icon_name, const gchar         *message,
 153   EventManagerApproval *approval, EventFunc            func,
 154   gpointer             user_data)
 155 {
 156   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 157   EventPriv               *event;
 158
 159   event = g_slice_new0 (EventPriv);
 160   event->public.contact = contact ? g_object_ref (contact) : NULL;
 161   event->public.icon_name = g_strdup (icon_name);
 162   event->public.message = g_strdup (message);
 163   event->func = func;
 164   event->user_data = user_data;
 165   event->manager = manager;
 166
 167   if (approval)
 168     event->approval = approval;
 169
 170   DEBUG ("Adding event %p", event);
 171   priv->events = g_slist_prepend (priv->events, event);
 172   g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
 173 }
 174
 175 static void
 176 event_channel_process_func (EventPriv *event)
 177 {
 178   empathy_dispatch_operation_approve (event->approval->operation);
 179 }
 180
 181 static void
 182 event_manager_chat_message_received_cb (EmpathyTpChat       *tp_chat,
 183   EmpathyMessage      *message, EventManagerApproval *approval)
 184 {
 185   EmpathyContact  *sender;
 186   gchar           *msg;
 187   TpChannel       *channel;
 188
 189   g_signal_handlers_disconnect_by_func (tp_chat,
 190     event_manager_chat_message_received_cb, approval);
 191
 192   sender = empathy_message_get_sender (message);
 193   msg = g_strdup_printf (_("New message from %s:\n%s"),
 194     empathy_contact_get_name (sender), empathy_message_get_body (message));
 195
 196   channel = empathy_tp_chat_get_channel (tp_chat);
 197   event_manager_add (approval->manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
 198     approval, event_channel_process_func, NULL);
 199
 200   g_free (msg);
 201 }
 202
 203 static void
 204 event_manager_approval_done (EventManagerApproval *approval)
 205 {
 206   EmpathyEventManagerPriv *priv = GET_PRIV (approval->manager);
 207   GSList                  *l;
 208
 209   priv->approvals = g_slist_remove (priv->approvals, approval);
 210
 211   for (l = priv->events; l; l = l->next)
 212     {
 213       EventPriv *event = l->data;
 214
 215       if (event->approval == approval)
 216         {
 217           event_remove (event);
 218           break;
 219         }
 220     }
 221
 222   event_manager_approval_free (approval);
 223 }
 224
 225 static void
 226 event_manager_operation_approved_cb (EmpathyDispatchOperation *operation,
 227   EventManagerApproval *approval)
 228 {
 229   event_manager_approval_done (approval);
 230 }
 231
 232 static void
 233 event_manager_operation_claimed_cb (EmpathyDispatchOperation *operation,
 234   EventManagerApproval *approval)
 235 {
 236   event_manager_approval_done (approval);
 237 }
 238
 239 static void
 240 event_manager_media_channel_got_name_cb (EmpathyContact *contact,
 241   gpointer user_data)
 242 {
 243   EventManagerApproval *approval = user_data;
 244   gchar *msg;
 245
 246   msg = g_strdup_printf (_("Incoming call from %s"),
 247     empathy_contact_get_name (contact));
 248
 249   event_manager_add (approval->manager,
 250     approval->contact, EMPATHY_IMAGE_VOIP, msg,
 251     approval, event_channel_process_func, NULL);
 252
 253   g_free (msg);
 254 }
 255
 256 static void
 257 event_manager_media_channel_got_contact (EventManagerApproval *approval)
 258 {
 259   empathy_contact_call_when_ready (approval->contact,
 260      EMPATHY_CONTACT_READY_NAME, event_manager_media_channel_got_name_cb,
 261         approval);
 262 }
 263
 264 static void
 265 event_manager_media_channel_contact_changed_cb (EmpathyTpCall *call,
 266   GParamSpec *param, EventManagerApproval *approval)
 267 {
 268   EmpathyContact *contact;
 269
 270   g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 271
 272   if (contact == NULL)
 273     return;
 274
 275   approval->contact = contact;
 276   event_manager_media_channel_got_contact (approval);
 277 }
 278
 279 static void
 280 event_manager_tube_approved_cb (EventPriv *event)
 281 {
 282   empathy_tube_dispatch_handle (event->approval->tube_dispatch);
 283 }
 284
 285 static void
 286 event_manager_add_tube_approval (EventManagerApproval *approval,
 287   EmpathyTubeDispatchAbility ability)
 288 {
 289   const gchar *icon_name;
 290   gchar       *msg;
 291
 292   if (ability == EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE)
 293     {
 294       icon_name = GTK_STOCK_EXECUTE;
 295       msg = g_strdup_printf (_("%s is offering you an invitation."
 296         " An external application will be started to handle it."),
 297       empathy_contact_get_name (approval->contact));
 298     }
 299   else
 300     {
 301       icon_name = GTK_STOCK_DIALOG_ERROR;
 302       msg = g_strdup_printf (_("%s is offering you an invitation, but "
 303         "you don't have the needed external "
 304         "application to handle it."),
 305         empathy_contact_get_name (approval->contact));
 306     }
 307
 308   event_manager_add (approval->manager, approval->contact, icon_name, msg,
 309     approval, event_manager_tube_approved_cb, approval);
 310
 311   g_free (msg);
 312 }
 313
 314 static void
 315 event_manager_tube_dispatch_ability_cb (GObject *object,
 316    GParamSpec *spec, gpointer user_data)
 317 {
 318   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 319   EmpathyTubeDispatchAbility dispatchability;
 320
 321   dispatchability =
 322     empathy_tube_dispatch_is_dispatchable (approval->tube_dispatch);
 323
 324   if (dispatchability != EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN)
 325     {
 326       event_manager_add_tube_approval (approval, dispatchability);
 327       g_signal_handler_disconnect (object, approval->handler);
 328       approval->handler = 0;
 329     }
 330 }
 331
 332 static void
 333 event_manager_tube_got_contact_name_cb (EmpathyContact *contact,
 334   gpointer user_data)
 335 {
 336   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 337   EmpathyTubeDispatchAbility dispatchability;
 338
 339   dispatchability = empathy_tube_dispatch_is_dispatchable
 340     (approval->tube_dispatch);
 341
 342   switch (dispatchability)
 343     {
 344       case EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN:
 345         approval->handler = g_signal_connect (approval->tube_dispatch,
 346           "notify::dispatchability",
 347           G_CALLBACK (event_manager_tube_dispatch_ability_cb), approval);
 348         break;
 349       case EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE:
 350         /* fallthrough */
 351       case EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE:
 352         event_manager_add_tube_approval (approval, dispatchability);
 353         break;
 354     }
 355 }
 356
 357 static void
 358 event_manager_approve_channel_cb (EmpathyDispatcher *dispatcher,
 359   EmpathyDispatchOperation  *operation, EmpathyEventManager *manager)
 360 {
 361   const gchar *channel_type;
 362   EventManagerApproval *approval;
 363   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 364
 365   channel_type = empathy_dispatch_operation_get_channel_type (operation);
 366
 367   approval = event_manager_approval_new (manager, operation);
 368   priv->approvals = g_slist_prepend (priv->approvals, approval);
 369
 370   approval->approved_handler = g_signal_connect (operation, "approved",
 371     G_CALLBACK (event_manager_operation_approved_cb), approval);
 372
 373   approval->claimed_handler = g_signal_connect (operation, "claimed",
 374      G_CALLBACK (event_manager_operation_claimed_cb), approval);
 375
 376   if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT))
 377     {
 378       EmpathyTpChat *tp_chat =
 379         EMPATHY_TP_CHAT (
 380           empathy_dispatch_operation_get_channel_wrapper (operation));
 381
 382       g_signal_connect (tp_chat, "message-received",
 383         G_CALLBACK (event_manager_chat_message_received_cb), approval);
 384       g_object_unref (G_OBJECT (tp_chat));
 385
 386     }
 387   else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA))
 388     {
 389       EmpathyContact *contact;
 390       EmpathyTpCall *call = EMPATHY_TP_CALL (
 391           empathy_dispatch_operation_get_channel_wrapper (operation));
 392
 393       g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 394
 395       if (contact == NULL)
 396         {
 397           g_signal_connect (call, "notify::contact",
 398             G_CALLBACK (event_manager_media_channel_contact_changed_cb),
 399             approval);
 400         }
 401       else
 402         {
 403           approval->contact = contact;
 404           event_manager_media_channel_got_contact (approval);
 405         }
 406
 407     }
 408   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER))
 409     {
 410       EmpathyContact        *contact;
 411       gchar                 *msg;
 412       TpHandle               handle;
 413       McAccount             *account;
 414       EmpathyContactFactory *factory;
 415       TpChannel *channel = empathy_dispatch_operation_get_channel (operation);
 416
 417       factory = empathy_contact_factory_dup_singleton ();
 418       handle = tp_channel_get_handle (channel, NULL);
 419       account = empathy_channel_get_account (channel);
 420
 421       contact = empathy_contact_factory_get_from_handle (factory, account,
 422         handle);
 423
 424       empathy_contact_run_until_ready (contact,
 425         EMPATHY_CONTACT_READY_NAME, NULL);
 426
 427       msg = g_strdup_printf (_("Incoming file transfer from %s"),
 428         empathy_contact_get_name (contact));
 429
 430       event_manager_add (manager, contact, EMPATHY_IMAGE_DOCUMENT_SEND,
 431         msg, approval, event_channel_process_func, NULL);
 432
 433       g_object_unref (channel);
 434       g_object_unref (factory);
 435       g_object_unref (account);
 436     }
 437   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE))
 438     {
 439       EmpathyContact        *contact;
 440       TpHandle               handle;
 441       McAccount             *account;
 442       EmpathyContactFactory *factory;
 443       EmpathyTubeDispatch *tube_dispatch;
 444       TpChannel *channel;
 445
 446       channel = empathy_dispatch_operation_get_channel (operation);
 447
 448       factory = empathy_contact_factory_new ();
 449       handle = tp_channel_get_handle (channel, NULL);
 450       account = empathy_channel_get_account (channel);
 451
 452       contact = empathy_contact_factory_get_from_handle (factory, account,
 453         handle);
 454
 455       tube_dispatch = empathy_tube_dispatch_new (operation);
 456
 457       approval->contact = contact;
 458       approval->tube_dispatch = tube_dispatch;
 459
 460       empathy_contact_call_when_ready (contact,
 461         EMPATHY_CONTACT_READY_NAME, event_manager_tube_got_contact_name_cb,
 462         approval);
 463
 464       g_object_unref (channel);
 465       g_object_unref (factory);
 466       g_object_unref (account);
 467     }
 468   else
 469     {
 470       DEBUG ("Unknown channel type, ignoring..");
 471     }
 472 }
 473
 474 static void
 475 event_pending_subscribe_func (EventPriv *event)
 476 {
 477   empathy_subscription_dialog_show (event->public.contact, NULL);
 478   event_remove (event);
 479 }
 480
 481 static void
 482 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 483   EmpathyContact *contact, EmpathyContact *actor,
 484   guint reason, gchar *message, gboolean is_pending,
 485   EmpathyEventManager *manager)
 486 {
 487   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 488   GString                 *str;
 489
 490   if (!is_pending)
 491     {
 492       GSList *l;
 493
 494       for (l = priv->events; l; l = l->next)
 495         {
 496           EventPriv *event = l->data;
 497
 498       if (event->public.contact == contact &&
 499           event->func == event_pending_subscribe_func)
 500         {
 501           event_remove (event);
 502           break;
 503         }
 504       }
 505
 506       return;
 507     }
 508
 509   empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL);
 510
 511   str = g_string_new (NULL);
 512   g_string_printf (str, _("Subscription requested by %s"),
 513     empathy_contact_get_name (contact));
 514
 515   if (!G_STR_EMPTY (message))
 516     g_string_append_printf (str, _("\nMessage: %s"), message);
 517
 518   event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 519     NULL, event_pending_subscribe_func, NULL);
 520
 521   g_string_free (str, TRUE);
 522 }
 523
 524 static GObject *
 525 event_manager_constructor (GType type,
 526                            guint n_props,
 527                            GObjectConstructParam *props)
 528 {
 529         GObject *retval;
 530
 531         if (manager_singleton) {
 532                 retval = g_object_ref (manager_singleton);
 533         } else {
 534                 retval = G_OBJECT_CLASS (empathy_event_manager_parent_class)->constructor
 535                         (type, n_props, props);
 536
 537                 manager_singleton = EMPATHY_EVENT_MANAGER (retval);
 538                 g_object_add_weak_pointer (retval, (gpointer *) &manager_singleton);
 539         }
 540
 541         return retval;
 542 }
 543
 544 static void
 545 event_manager_finalize (GObject *object)
 546 {
 547   EmpathyEventManagerPriv *priv = GET_PRIV (object);
 548
 549   g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 550   g_slist_free (priv->events);
 551   g_slist_foreach (priv->approvals, (GFunc) event_manager_approval_free, NULL);
 552   g_slist_free (priv->approvals);
 553   g_object_unref (priv->contact_manager);
 554   g_object_unref (priv->dispatcher);
 555 }
 556
 557 static void
 558 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 559 {
 560   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 561
 562   object_class->finalize = event_manager_finalize;
 563   object_class->constructor = event_manager_constructor;
 564
 565   signals[EVENT_ADDED] =
 566     g_signal_new ("event-added",
 567       G_TYPE_FROM_CLASS (klass),
 568       G_SIGNAL_RUN_LAST,
 569       0,
 570       NULL, NULL,
 571       g_cclosure_marshal_VOID__POINTER,
 572       G_TYPE_NONE,
 573       1, G_TYPE_POINTER);
 574
 575   signals[EVENT_REMOVED] =
 576   g_signal_new ("event-removed",
 577       G_TYPE_FROM_CLASS (klass),
 578       G_SIGNAL_RUN_LAST,
 579       0,
 580       NULL, NULL,
 581       g_cclosure_marshal_VOID__POINTER,
 582       G_TYPE_NONE, 1, G_TYPE_POINTER);
 583
 584   g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 585 }
 586
 587 static void
 588 empathy_event_manager_init (EmpathyEventManager *manager)
 589 {
 590   EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 591     EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 592
 593   manager->priv = priv;
 594
 595   priv->dispatcher = empathy_dispatcher_dup_singleton ();
 596   priv->contact_manager = empathy_contact_manager_dup_singleton ();
 597   g_signal_connect (priv->dispatcher, "approve",
 598     G_CALLBACK (event_manager_approve_channel_cb), manager);
 599   g_signal_connect (priv->contact_manager, "pendings-changed",
 600     G_CALLBACK (event_manager_pendings_changed_cb), manager);
 601 }
 602
 603 EmpathyEventManager *
 604 empathy_event_manager_dup_singleton (void)
 605 {
 606   return g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 607 }
 608
 609 GSList *
 610 empathy_event_manager_get_events (EmpathyEventManager *manager)
 611 {
 612   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 613
 614   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 615
 616   return priv->events;
 617 }
 618
 619 EmpathyEvent *
 620 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 621 {
 622   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 623
 624   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 625
 626   return priv->events ? priv->events->data : NULL;
 627 }
 628
 629 void
 630 empathy_event_activate (EmpathyEvent *event_public)
 631 {
 632   EventPriv *event = (EventPriv*) event_public;
 633
 634   g_return_if_fail (event_public != NULL);
 635
 636   if (event->func)
 637     event->func (event);
 638   else
 639     event_remove (event);
 640 }