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   gulong invalidated_handler;
  56   /* Remove contact if applicable */
  57   EmpathyContact *contact;
  58   /* Tube dispatcher if applicable */
  59   EmpathyTubeDispatch *tube_dispatch;
  60   /* option signal handler */
  61   gulong handler;
  62 } EventManagerApproval;
  63
  64 typedef struct {
  65   EmpathyDispatcher *dispatcher;
  66   EmpathyContactManager *contact_manager;
  67   GSList *events;
  68   /* Ongoing approvals */
  69   GSList *approvals;
  70 } EmpathyEventManagerPriv;
  71
  72 typedef struct _EventPriv EventPriv;
  73 typedef void (*EventFunc) (EventPriv *event);
  74
  75 struct _EventPriv {
  76   EmpathyEvent public;
  77   EmpathyEventManager *manager;
  78   EventManagerApproval *approval;
  79   EventFunc func;
  80   gpointer user_data;
  81 };
  82
  83 enum {
  84   EVENT_ADDED,
  85   EVENT_REMOVED,
  86   LAST_SIGNAL
  87 };
  88
  89 static guint signals[LAST_SIGNAL];
  90
  91 G_DEFINE_TYPE (EmpathyEventManager, empathy_event_manager, G_TYPE_OBJECT);
  92
  93 static EmpathyEventManager * manager_singleton = NULL;
  94
  95 static EventManagerApproval *
  96 event_manager_approval_new (EmpathyEventManager *manager,
  97   EmpathyDispatchOperation *operation)
  98 {
  99   EventManagerApproval *result = g_slice_new0 (EventManagerApproval);
 100   result->operation = g_object_ref (operation);
 101   result->manager = manager;
 102
 103   return result;
 104 }
 105
 106 static void
 107 event_manager_approval_free (EventManagerApproval *approval)
 108 {
 109   g_signal_handler_disconnect (approval->operation,
 110     approval->approved_handler);
 111   g_signal_handler_disconnect (approval->operation,
 112     approval->claimed_handler);
 113   g_signal_handler_disconnect (approval->operation,
 114     approval->invalidated_handler);
 115   g_object_unref (approval->operation);
 116
 117   if (approval->contact != NULL)
 118     g_object_unref (approval->contact);
 119
 120   if (approval->tube_dispatch != NULL)
 121     g_object_unref (approval->tube_dispatch);
 122
 123   g_slice_free (EventManagerApproval, approval);
 124 }
 125
 126 static void event_remove (EventPriv *event);
 127
 128 static void
 129 event_free (EventPriv *event)
 130 {
 131   g_free (event->public.icon_name);
 132   g_free (event->public.message);
 133
 134   if (event->public.contact)
 135     {
 136       g_object_unref (event->public.contact);
 137     }
 138
 139   g_slice_free (EventPriv, event);
 140 }
 141
 142 static void
 143 event_remove (EventPriv *event)
 144 {
 145   EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 146
 147   DEBUG ("Removing event %p", event);
 148   priv->events = g_slist_remove (priv->events, event);
 149   g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
 150   event_free (event);
 151 }
 152
 153 static void
 154 event_manager_add (EmpathyEventManager *manager, EmpathyContact      *contact,
 155   const gchar         *icon_name, const gchar         *message,
 156   EventManagerApproval *approval, EventFunc            func,
 157   gpointer             user_data)
 158 {
 159   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 160   EventPriv               *event;
 161
 162   event = g_slice_new0 (EventPriv);
 163   event->public.contact = contact ? g_object_ref (contact) : NULL;
 164   event->public.icon_name = g_strdup (icon_name);
 165   event->public.message = g_strdup (message);
 166   event->func = func;
 167   event->user_data = user_data;
 168   event->manager = manager;
 169
 170   if (approval)
 171     event->approval = approval;
 172
 173   DEBUG ("Adding event %p", event);
 174   priv->events = g_slist_prepend (priv->events, event);
 175   g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
 176 }
 177
 178 static void
 179 event_channel_process_func (EventPriv *event)
 180 {
 181   empathy_dispatch_operation_approve (event->approval->operation);
 182 }
 183
 184 static void
 185 event_manager_chat_message_received_cb (EmpathyTpChat       *tp_chat,
 186   EmpathyMessage      *message, EventManagerApproval *approval)
 187 {
 188   EmpathyContact  *sender;
 189   gchar           *msg;
 190   TpChannel       *channel;
 191
 192   g_signal_handlers_disconnect_by_func (tp_chat,
 193     event_manager_chat_message_received_cb, approval);
 194
 195   sender = empathy_message_get_sender (message);
 196   msg = g_strdup_printf (_("New message from %s:\n%s"),
 197     empathy_contact_get_name (sender), empathy_message_get_body (message));
 198
 199   channel = empathy_tp_chat_get_channel (tp_chat);
 200   event_manager_add (approval->manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
 201     approval, event_channel_process_func, NULL);
 202
 203   g_free (msg);
 204 }
 205
 206 static void
 207 event_manager_approval_done (EventManagerApproval *approval)
 208 {
 209   EmpathyEventManagerPriv *priv = GET_PRIV (approval->manager);
 210   GSList                  *l;
 211
 212   priv->approvals = g_slist_remove (priv->approvals, approval);
 213
 214   for (l = priv->events; l; l = l->next)
 215     {
 216       EventPriv *event = l->data;
 217
 218       if (event->approval == approval)
 219         {
 220           event_remove (event);
 221           break;
 222         }
 223     }
 224
 225   event_manager_approval_free (approval);
 226 }
 227
 228 static void
 229 event_manager_operation_approved_cb (EmpathyDispatchOperation *operation,
 230   EventManagerApproval *approval)
 231 {
 232   event_manager_approval_done (approval);
 233 }
 234
 235 static void
 236 event_manager_operation_claimed_cb (EmpathyDispatchOperation *operation,
 237   EventManagerApproval *approval)
 238 {
 239   event_manager_approval_done (approval);
 240 }
 241
 242 static void
 243 event_manager_operation_invalidated_cb (EmpathyDispatchOperation *operation,
 244   guint domain, gint code, gchar *message,
 245   EventManagerApproval *approval)
 246 {
 247   event_manager_approval_done (approval);
 248 }
 249
 250 static void
 251 event_manager_media_channel_got_name_cb (EmpathyContact *contact,
 252   const GError *error, gpointer user_data, GObject *object)
 253 {
 254   EventManagerApproval *approval = user_data;
 255   gchar *msg;
 256
 257   if (error != NULL)
 258     {
 259       /* FIXME just returning assuming the operation will be invalidated as
 260        * well */
 261       return;
 262     }
 263
 264   msg = g_strdup_printf (_("Incoming call from %s"),
 265     empathy_contact_get_name (contact));
 266
 267   event_manager_add (approval->manager,
 268     approval->contact, EMPATHY_IMAGE_VOIP, msg,
 269     approval, event_channel_process_func, NULL);
 270
 271   g_free (msg);
 272 }
 273
 274 static void
 275 event_manager_media_channel_got_contact (EventManagerApproval *approval)
 276 {
 277   empathy_contact_call_when_ready (approval->contact,
 278      EMPATHY_CONTACT_READY_NAME, event_manager_media_channel_got_name_cb,
 279         approval, NULL, G_OBJECT (approval->manager));
 280 }
 281
 282 static void
 283 event_manager_media_channel_contact_changed_cb (EmpathyTpCall *call,
 284   GParamSpec *param, EventManagerApproval *approval)
 285 {
 286   EmpathyContact *contact;
 287
 288   g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 289
 290   if (contact == NULL)
 291     return;
 292
 293   approval->contact = contact;
 294   event_manager_media_channel_got_contact (approval);
 295 }
 296
 297 static void
 298 event_manager_tube_approved_cb (EventPriv *event)
 299 {
 300   empathy_tube_dispatch_handle (event->approval->tube_dispatch);
 301 }
 302
 303 static void
 304 event_manager_add_tube_approval (EventManagerApproval *approval,
 305   EmpathyTubeDispatchAbility ability)
 306 {
 307   const gchar *icon_name;
 308   gchar       *msg;
 309
 310   if (ability == EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE)
 311     {
 312       icon_name = GTK_STOCK_EXECUTE;
 313       msg = g_strdup_printf (_("%s is offering you an invitation."
 314         " An external application will be started to handle it."),
 315       empathy_contact_get_name (approval->contact));
 316     }
 317   else
 318     {
 319       icon_name = GTK_STOCK_DIALOG_ERROR;
 320       msg = g_strdup_printf (_("%s is offering you an invitation, but "
 321         "you don't have the needed external "
 322         "application to handle it."),
 323         empathy_contact_get_name (approval->contact));
 324     }
 325
 326   event_manager_add (approval->manager, approval->contact, icon_name, msg,
 327     approval, event_manager_tube_approved_cb, approval);
 328
 329   g_free (msg);
 330 }
 331
 332 static void
 333 event_manager_tube_dispatch_ability_cb (GObject *object,
 334    GParamSpec *spec, gpointer user_data)
 335 {
 336   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 337   EmpathyTubeDispatchAbility dispatchability;
 338
 339   dispatchability =
 340     empathy_tube_dispatch_is_dispatchable (approval->tube_dispatch);
 341
 342   if (dispatchability != EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN)
 343     {
 344       event_manager_add_tube_approval (approval, dispatchability);
 345       g_signal_handler_disconnect (object, approval->handler);
 346       approval->handler = 0;
 347     }
 348 }
 349
 350 static void
 351 event_manager_tube_got_contact_name_cb (EmpathyContact *contact,
 352   const GError *error, gpointer user_data, GObject *object)
 353 {
 354   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 355   EmpathyTubeDispatchAbility dispatchability;
 356
 357   if (error != NULL)
 358     {
 359       /* FIXME?, we assume that the operation gets invalidated as well (if it
 360        * didn't already */
 361        return;
 362     }
 363
 364   dispatchability = empathy_tube_dispatch_is_dispatchable
 365     (approval->tube_dispatch);
 366
 367
 368   switch (dispatchability)
 369     {
 370       case EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN:
 371         approval->handler = g_signal_connect (approval->tube_dispatch,
 372           "notify::dispatchability",
 373           G_CALLBACK (event_manager_tube_dispatch_ability_cb), approval);
 374         break;
 375       case EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE:
 376         /* fallthrough */
 377       case EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE:
 378         event_manager_add_tube_approval (approval, dispatchability);
 379         break;
 380     }
 381 }
 382
 383 static void
 384 event_manager_approve_channel_cb (EmpathyDispatcher *dispatcher,
 385   EmpathyDispatchOperation  *operation, EmpathyEventManager *manager)
 386 {
 387   const gchar *channel_type;
 388   EventManagerApproval *approval;
 389   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 390
 391   channel_type = empathy_dispatch_operation_get_channel_type (operation);
 392
 393   approval = event_manager_approval_new (manager, operation);
 394   priv->approvals = g_slist_prepend (priv->approvals, approval);
 395
 396   approval->approved_handler = g_signal_connect (operation, "approved",
 397     G_CALLBACK (event_manager_operation_approved_cb), approval);
 398
 399   approval->claimed_handler = g_signal_connect (operation, "claimed",
 400      G_CALLBACK (event_manager_operation_claimed_cb), approval);
 401
 402   approval->invalidated_handler = g_signal_connect (operation, "invalidated",
 403      G_CALLBACK (event_manager_operation_invalidated_cb), approval);
 404
 405   if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT))
 406     {
 407       EmpathyTpChat *tp_chat =
 408         EMPATHY_TP_CHAT (
 409           empathy_dispatch_operation_get_channel_wrapper (operation));
 410
 411       g_signal_connect (tp_chat, "message-received",
 412         G_CALLBACK (event_manager_chat_message_received_cb), approval);
 413
 414     }
 415   else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA))
 416     {
 417       EmpathyContact *contact;
 418       EmpathyTpCall *call = EMPATHY_TP_CALL (
 419           empathy_dispatch_operation_get_channel_wrapper (operation));
 420
 421       g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 422
 423       if (contact == NULL)
 424         {
 425           g_signal_connect (call, "notify::contact",
 426             G_CALLBACK (event_manager_media_channel_contact_changed_cb),
 427             approval);
 428         }
 429       else
 430         {
 431           approval->contact = contact;
 432           event_manager_media_channel_got_contact (approval);
 433         }
 434
 435     }
 436   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER))
 437     {
 438       EmpathyContact        *contact;
 439       gchar                 *msg;
 440       TpHandle               handle;
 441       McAccount             *account;
 442       EmpathyContactFactory *factory;
 443       TpChannel *channel = empathy_dispatch_operation_get_channel (operation);
 444
 445       factory = empathy_contact_factory_dup_singleton ();
 446       handle = tp_channel_get_handle (channel, NULL);
 447       account = empathy_channel_get_account (channel);
 448
 449       contact = empathy_contact_factory_get_from_handle (factory, account,
 450         handle);
 451
 452       empathy_contact_run_until_ready (contact,
 453         EMPATHY_CONTACT_READY_NAME, NULL);
 454
 455       msg = g_strdup_printf (_("Incoming file transfer from %s"),
 456         empathy_contact_get_name (contact));
 457
 458       event_manager_add (manager, contact, EMPATHY_IMAGE_DOCUMENT_SEND,
 459         msg, approval, event_channel_process_func, NULL);
 460
 461       g_object_unref (factory);
 462       g_object_unref (account);
 463     }
 464   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE) ||
 465       !tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_DBUS_TUBE))
 466     {
 467       EmpathyContact        *contact;
 468       TpHandle               handle;
 469       TpHandleType           handle_type;
 470       McAccount             *account;
 471       EmpathyContactFactory *factory;
 472       EmpathyTubeDispatch *tube_dispatch;
 473       TpChannel *channel;
 474
 475       channel = empathy_dispatch_operation_get_channel (operation);
 476
 477       handle = tp_channel_get_handle (channel, &handle_type);
 478
 479       /* Only understand p2p tubes */
 480       if (handle_type != TP_HANDLE_TYPE_CONTACT)
 481         return;
 482
 483       factory = empathy_contact_factory_new ();
 484       account = empathy_channel_get_account (channel);
 485
 486       contact = empathy_contact_factory_get_from_handle (factory, account,
 487         handle);
 488
 489       tube_dispatch = empathy_tube_dispatch_new (operation);
 490
 491       approval->contact = contact;
 492       approval->tube_dispatch = tube_dispatch;
 493
 494       empathy_contact_call_when_ready (contact,
 495         EMPATHY_CONTACT_READY_NAME, event_manager_tube_got_contact_name_cb,
 496         approval, NULL, G_OBJECT (manager));
 497
 498       g_object_unref (factory);
 499       g_object_unref (account);
 500     }
 501   else
 502     {
 503       DEBUG ("Unknown channel type, ignoring..");
 504     }
 505 }
 506
 507 static void
 508 event_pending_subscribe_func (EventPriv *event)
 509 {
 510   empathy_subscription_dialog_show (event->public.contact, NULL);
 511   event_remove (event);
 512 }
 513
 514 static void
 515 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 516   EmpathyContact *contact, EmpathyContact *actor,
 517   guint reason, gchar *message, gboolean is_pending,
 518   EmpathyEventManager *manager)
 519 {
 520   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 521   GString                 *str;
 522
 523   if (!is_pending)
 524     {
 525       GSList *l;
 526
 527       for (l = priv->events; l; l = l->next)
 528         {
 529           EventPriv *event = l->data;
 530
 531       if (event->public.contact == contact &&
 532           event->func == event_pending_subscribe_func)
 533         {
 534           event_remove (event);
 535           break;
 536         }
 537       }
 538
 539       return;
 540     }
 541
 542   empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL);
 543
 544   str = g_string_new (NULL);
 545   g_string_printf (str, _("Subscription requested by %s"),
 546     empathy_contact_get_name (contact));
 547
 548   if (!G_STR_EMPTY (message))
 549     g_string_append_printf (str, _("\nMessage: %s"), message);
 550
 551   event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 552     NULL, event_pending_subscribe_func, NULL);
 553
 554   g_string_free (str, TRUE);
 555 }
 556
 557 static GObject *
 558 event_manager_constructor (GType type,
 559                            guint n_props,
 560                            GObjectConstructParam *props)
 561 {
 562         GObject *retval;
 563
 564         if (manager_singleton) {
 565                 retval = g_object_ref (manager_singleton);
 566         } else {
 567                 retval = G_OBJECT_CLASS (empathy_event_manager_parent_class)->constructor
 568                         (type, n_props, props);
 569
 570                 manager_singleton = EMPATHY_EVENT_MANAGER (retval);
 571                 g_object_add_weak_pointer (retval, (gpointer *) &manager_singleton);
 572         }
 573
 574         return retval;
 575 }
 576
 577 static void
 578 event_manager_finalize (GObject *object)
 579 {
 580   EmpathyEventManagerPriv *priv = GET_PRIV (object);
 581
 582   g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 583   g_slist_free (priv->events);
 584   g_slist_foreach (priv->approvals, (GFunc) event_manager_approval_free, NULL);
 585   g_slist_free (priv->approvals);
 586   g_object_unref (priv->contact_manager);
 587   g_object_unref (priv->dispatcher);
 588 }
 589
 590 static void
 591 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 592 {
 593   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 594
 595   object_class->finalize = event_manager_finalize;
 596   object_class->constructor = event_manager_constructor;
 597
 598   signals[EVENT_ADDED] =
 599     g_signal_new ("event-added",
 600       G_TYPE_FROM_CLASS (klass),
 601       G_SIGNAL_RUN_LAST,
 602       0,
 603       NULL, NULL,
 604       g_cclosure_marshal_VOID__POINTER,
 605       G_TYPE_NONE,
 606       1, G_TYPE_POINTER);
 607
 608   signals[EVENT_REMOVED] =
 609   g_signal_new ("event-removed",
 610       G_TYPE_FROM_CLASS (klass),
 611       G_SIGNAL_RUN_LAST,
 612       0,
 613       NULL, NULL,
 614       g_cclosure_marshal_VOID__POINTER,
 615       G_TYPE_NONE, 1, G_TYPE_POINTER);
 616
 617   g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 618 }
 619
 620 static void
 621 empathy_event_manager_init (EmpathyEventManager *manager)
 622 {
 623   EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 624     EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 625
 626   manager->priv = priv;
 627
 628   priv->dispatcher = empathy_dispatcher_dup_singleton ();
 629   priv->contact_manager = empathy_contact_manager_dup_singleton ();
 630   g_signal_connect (priv->dispatcher, "approve",
 631     G_CALLBACK (event_manager_approve_channel_cb), manager);
 632   g_signal_connect (priv->contact_manager, "pendings-changed",
 633     G_CALLBACK (event_manager_pendings_changed_cb), manager);
 634 }
 635
 636 EmpathyEventManager *
 637 empathy_event_manager_dup_singleton (void)
 638 {
 639   return g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 640 }
 641
 642 GSList *
 643 empathy_event_manager_get_events (EmpathyEventManager *manager)
 644 {
 645   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 646
 647   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 648
 649   return priv->events;
 650 }
 651
 652 EmpathyEvent *
 653 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 654 {
 655   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 656
 657   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 658
 659   return priv->events ? priv->events->data : NULL;
 660 }
 661
 662 void
 663 empathy_event_activate (EmpathyEvent *event_public)
 664 {
 665   EventPriv *event = (EventPriv*) event_public;
 666
 667   g_return_if_fail (event_public != NULL);
 668
 669   if (event->func)
 670     event->func (event);
 671   else
 672     event_remove (event);
 673 }