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-utils.h>
  35
  36 #include <extensions/extensions.h>
  37
  38 #include <libempathy-gtk/empathy-images.h>
  39 #include <libempathy-gtk/empathy-contact-dialogs.h>
  40
  41 #include "empathy-event-manager.h"
  42 #include "empathy-tube-dispatch.h"
  43
  44 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  45 #include <libempathy/empathy-debug.h>
  46
  47 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyEventManager)
  48
  49 typedef struct {
  50   EmpathyEventManager *manager;
  51   EmpathyDispatchOperation *operation;
  52   gulong approved_handler;
  53   gulong claimed_handler;
  54   gulong invalidated_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_signal_handler_disconnect (approval->operation,
 113     approval->invalidated_handler);
 114   g_object_unref (approval->operation);
 115
 116   if (approval->contact != NULL)
 117     g_object_unref (approval->contact);
 118
 119   if (approval->tube_dispatch != NULL)
 120     g_object_unref (approval->tube_dispatch);
 121
 122   g_slice_free (EventManagerApproval, approval);
 123 }
 124
 125 static void event_remove (EventPriv *event);
 126
 127 static void
 128 event_free (EventPriv *event)
 129 {
 130   g_free (event->public.icon_name);
 131   g_free (event->public.message);
 132
 133   if (event->public.contact)
 134     {
 135       g_object_unref (event->public.contact);
 136     }
 137
 138   g_slice_free (EventPriv, event);
 139 }
 140
 141 static void
 142 event_remove (EventPriv *event)
 143 {
 144   EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
 145
 146   DEBUG ("Removing event %p", event);
 147   priv->events = g_slist_remove (priv->events, event);
 148   g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
 149   event_free (event);
 150 }
 151
 152 static void
 153 event_manager_add (EmpathyEventManager *manager, EmpathyContact *contact,
 154   const gchar *icon_name, const gchar *message, EventManagerApproval *approval,
 155   EventFunc func, gpointer user_data)
 156 {
 157   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 158   EventPriv               *event;
 159
 160   event = g_slice_new0 (EventPriv);
 161   event->public.contact = contact ? g_object_ref (contact) : NULL;
 162   event->public.icon_name = g_strdup (icon_name);
 163   event->public.message = g_strdup (message);
 164   event->func = func;
 165   event->user_data = user_data;
 166   event->manager = manager;
 167   event->approval = approval;
 168
 169   DEBUG ("Adding event %p", event);
 170   priv->events = g_slist_prepend (priv->events, event);
 171   g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
 172 }
 173
 174 static void
 175 event_channel_process_func (EventPriv *event)
 176 {
 177   empathy_dispatch_operation_approve (event->approval->operation);
 178 }
 179
 180 static void
 181 event_manager_chat_message_received_cb (EmpathyTpChat *tp_chat,
 182   EmpathyMessage *message, EventManagerApproval *approval)
 183 {
 184   EmpathyContact  *sender;
 185   gchar           *msg;
 186   TpChannel       *channel;
 187
 188   g_signal_handlers_disconnect_by_func (tp_chat,
 189     event_manager_chat_message_received_cb, approval);
 190
 191   sender = empathy_message_get_sender (message);
 192   msg = g_strdup_printf (_("New message from %s:\n%s"),
 193     empathy_contact_get_name (sender), empathy_message_get_body (message));
 194
 195   channel = empathy_tp_chat_get_channel (tp_chat);
 196   event_manager_add (approval->manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
 197     approval, event_channel_process_func, NULL);
 198
 199   g_free (msg);
 200 }
 201
 202 static void
 203 event_manager_approval_done (EventManagerApproval *approval)
 204 {
 205   EmpathyEventManagerPriv *priv = GET_PRIV (approval->manager);
 206   GSList                  *l;
 207
 208   priv->approvals = g_slist_remove (priv->approvals, approval);
 209
 210   for (l = priv->events; l; l = l->next)
 211     {
 212       EventPriv *event = l->data;
 213
 214       if (event->approval == approval)
 215         {
 216           event_remove (event);
 217           break;
 218         }
 219     }
 220
 221   event_manager_approval_free (approval);
 222 }
 223
 224 static void
 225 event_manager_operation_approved_cb (EmpathyDispatchOperation *operation,
 226   EventManagerApproval *approval)
 227 {
 228   event_manager_approval_done (approval);
 229 }
 230
 231 static void
 232 event_manager_operation_claimed_cb (EmpathyDispatchOperation *operation,
 233   EventManagerApproval *approval)
 234 {
 235   event_manager_approval_done (approval);
 236 }
 237
 238 static void
 239 event_manager_operation_invalidated_cb (EmpathyDispatchOperation *operation,
 240   guint domain, gint code, gchar *message,
 241   EventManagerApproval *approval)
 242 {
 243   event_manager_approval_done (approval);
 244 }
 245
 246 static void
 247 event_manager_media_channel_got_name_cb (EmpathyContact *contact,
 248   const GError *error, gpointer user_data, GObject *object)
 249 {
 250   EventManagerApproval *approval = user_data;
 251   gchar *msg;
 252
 253   if (error != NULL)
 254     {
 255       /* FIXME just returning assuming the operation will be invalidated as
 256        * well */
 257       return;
 258     }
 259
 260   msg = g_strdup_printf (_("Incoming call from %s"),
 261     empathy_contact_get_name (contact));
 262
 263   event_manager_add (approval->manager,
 264     approval->contact, EMPATHY_IMAGE_VOIP, msg,
 265     approval, event_channel_process_func, NULL);
 266
 267   g_free (msg);
 268 }
 269
 270 static void
 271 event_manager_media_channel_got_contact (EventManagerApproval *approval)
 272 {
 273   empathy_contact_call_when_ready (approval->contact,
 274      EMPATHY_CONTACT_READY_NAME, event_manager_media_channel_got_name_cb,
 275         approval, NULL, G_OBJECT (approval->manager));
 276 }
 277
 278 static void
 279 event_manager_media_channel_contact_changed_cb (EmpathyTpCall *call,
 280   GParamSpec *param, EventManagerApproval *approval)
 281 {
 282   EmpathyContact *contact;
 283
 284   g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 285
 286   if (contact == NULL)
 287     return;
 288
 289   approval->contact = contact;
 290   event_manager_media_channel_got_contact (approval);
 291 }
 292
 293 static void
 294 event_manager_tube_approved_cb (EventPriv *event)
 295 {
 296   empathy_tube_dispatch_handle (event->approval->tube_dispatch);
 297 }
 298
 299 static void
 300 event_manager_add_tube_approval (EventManagerApproval *approval,
 301   EmpathyTubeDispatchAbility ability)
 302 {
 303   const gchar *icon_name;
 304   gchar       *msg;
 305
 306   if (ability == EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE)
 307     {
 308       icon_name = GTK_STOCK_EXECUTE;
 309       msg = g_strdup_printf (_("%s is offering you an invitation."
 310         " An external application will be started to handle it."),
 311       empathy_contact_get_name (approval->contact));
 312     }
 313   else
 314     {
 315       icon_name = GTK_STOCK_DIALOG_ERROR;
 316       msg = g_strdup_printf (_("%s is offering you an invitation, but "
 317         "you don't have the needed external "
 318         "application to handle it."),
 319         empathy_contact_get_name (approval->contact));
 320     }
 321
 322   event_manager_add (approval->manager, approval->contact, icon_name, msg,
 323     approval, event_manager_tube_approved_cb, approval);
 324
 325   g_free (msg);
 326 }
 327
 328 static void
 329 event_manager_tube_dispatch_ability_cb (GObject *object,
 330    GParamSpec *spec, gpointer user_data)
 331 {
 332   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 333   EmpathyTubeDispatchAbility dispatchability;
 334
 335   dispatchability =
 336     empathy_tube_dispatch_is_dispatchable (approval->tube_dispatch);
 337
 338   if (dispatchability != EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN)
 339     {
 340       event_manager_add_tube_approval (approval, dispatchability);
 341       g_signal_handler_disconnect (object, approval->handler);
 342       approval->handler = 0;
 343     }
 344 }
 345
 346 static void
 347 event_manager_tube_got_contact_name_cb (EmpathyContact *contact,
 348   const GError *error, gpointer user_data, GObject *object)
 349 {
 350   EventManagerApproval *approval = (EventManagerApproval *)user_data;
 351   EmpathyTubeDispatchAbility dispatchability;
 352
 353   if (error != NULL)
 354     {
 355       /* FIXME?, we assume that the operation gets invalidated as well (if it
 356        * didn't already */
 357        return;
 358     }
 359
 360   dispatchability = empathy_tube_dispatch_is_dispatchable
 361     (approval->tube_dispatch);
 362
 363
 364   switch (dispatchability)
 365     {
 366       case EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN:
 367         approval->handler = g_signal_connect (approval->tube_dispatch,
 368           "notify::dispatchability",
 369           G_CALLBACK (event_manager_tube_dispatch_ability_cb), approval);
 370         break;
 371       case EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE:
 372         /* fallthrough */
 373       case EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE:
 374         event_manager_add_tube_approval (approval, dispatchability);
 375         break;
 376     }
 377 }
 378
 379 static void
 380 event_manager_approve_channel_cb (EmpathyDispatcher *dispatcher,
 381   EmpathyDispatchOperation  *operation, EmpathyEventManager *manager)
 382 {
 383   const gchar *channel_type;
 384   EventManagerApproval *approval;
 385   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 386
 387   channel_type = empathy_dispatch_operation_get_channel_type (operation);
 388
 389   approval = event_manager_approval_new (manager, operation);
 390   priv->approvals = g_slist_prepend (priv->approvals, approval);
 391
 392   approval->approved_handler = g_signal_connect (operation, "approved",
 393     G_CALLBACK (event_manager_operation_approved_cb), approval);
 394
 395   approval->claimed_handler = g_signal_connect (operation, "claimed",
 396      G_CALLBACK (event_manager_operation_claimed_cb), approval);
 397
 398   approval->invalidated_handler = g_signal_connect (operation, "invalidated",
 399      G_CALLBACK (event_manager_operation_invalidated_cb), approval);
 400
 401   if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT))
 402     {
 403       EmpathyTpChat *tp_chat =
 404         EMPATHY_TP_CHAT (
 405           empathy_dispatch_operation_get_channel_wrapper (operation));
 406
 407       g_signal_connect (tp_chat, "message-received",
 408         G_CALLBACK (event_manager_chat_message_received_cb), approval);
 409
 410     }
 411   else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA))
 412     {
 413       EmpathyContact *contact;
 414       EmpathyTpCall *call = EMPATHY_TP_CALL (
 415           empathy_dispatch_operation_get_channel_wrapper (operation));
 416
 417       g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 418
 419       if (contact == NULL)
 420         {
 421           g_signal_connect (call, "notify::contact",
 422             G_CALLBACK (event_manager_media_channel_contact_changed_cb),
 423             approval);
 424         }
 425       else
 426         {
 427           approval->contact = contact;
 428           event_manager_media_channel_got_contact (approval);
 429         }
 430
 431     }
 432   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER))
 433     {
 434       EmpathyContact        *contact;
 435       gchar                 *msg;
 436       TpHandle               handle;
 437       McAccount             *account;
 438       EmpathyContactFactory *factory;
 439       TpChannel *channel = empathy_dispatch_operation_get_channel (operation);
 440
 441       factory = empathy_contact_factory_dup_singleton ();
 442       handle = tp_channel_get_handle (channel, NULL);
 443       account = empathy_channel_get_account (channel);
 444
 445       contact = empathy_contact_factory_get_from_handle (factory, account,
 446         handle);
 447
 448       empathy_contact_run_until_ready (contact,
 449         EMPATHY_CONTACT_READY_NAME, NULL);
 450
 451       msg = g_strdup_printf (_("Incoming file transfer from %s"),
 452         empathy_contact_get_name (contact));
 453
 454       event_manager_add (manager, contact, EMPATHY_IMAGE_DOCUMENT_SEND,
 455         msg, approval, event_channel_process_func, NULL);
 456
 457       g_object_unref (factory);
 458       g_object_unref (account);
 459     }
 460   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE) ||
 461       !tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_DBUS_TUBE))
 462     {
 463       EmpathyContact        *contact;
 464       TpHandle               handle;
 465       TpHandleType           handle_type;
 466       McAccount             *account;
 467       EmpathyContactFactory *factory;
 468       EmpathyTubeDispatch *tube_dispatch;
 469       TpChannel *channel;
 470
 471       channel = empathy_dispatch_operation_get_channel (operation);
 472
 473       handle = tp_channel_get_handle (channel, &handle_type);
 474
 475       /* Only understand p2p tubes */
 476       if (handle_type != TP_HANDLE_TYPE_CONTACT)
 477         return;
 478
 479       factory = empathy_contact_factory_dup_singleton ();
 480       account = empathy_channel_get_account (channel);
 481
 482       contact = empathy_contact_factory_get_from_handle (factory, account,
 483         handle);
 484
 485       tube_dispatch = empathy_tube_dispatch_new (operation);
 486
 487       approval->contact = contact;
 488       approval->tube_dispatch = tube_dispatch;
 489
 490       empathy_contact_call_when_ready (contact,
 491         EMPATHY_CONTACT_READY_NAME, event_manager_tube_got_contact_name_cb,
 492         approval, NULL, G_OBJECT (manager));
 493
 494       g_object_unref (factory);
 495       g_object_unref (account);
 496     }
 497   else
 498     {
 499       DEBUG ("Unknown channel type, ignoring..");
 500     }
 501 }
 502
 503 static void
 504 event_pending_subscribe_func (EventPriv *event)
 505 {
 506   empathy_subscription_dialog_show (event->public.contact, NULL);
 507   event_remove (event);
 508 }
 509
 510 static void
 511 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 512   EmpathyContact *contact, EmpathyContact *actor,
 513   guint reason, gchar *message, gboolean is_pending,
 514   EmpathyEventManager *manager)
 515 {
 516   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 517   GString                 *str;
 518
 519   if (!is_pending)
 520     {
 521       GSList *l;
 522
 523       for (l = priv->events; l; l = l->next)
 524         {
 525           EventPriv *event = l->data;
 526
 527       if (event->public.contact == contact &&
 528           event->func == event_pending_subscribe_func)
 529         {
 530           event_remove (event);
 531           break;
 532         }
 533       }
 534
 535       return;
 536     }
 537
 538   empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL);
 539
 540   str = g_string_new (NULL);
 541   g_string_printf (str, _("Subscription requested by %s"),
 542     empathy_contact_get_name (contact));
 543
 544   if (!G_STR_EMPTY (message))
 545     g_string_append_printf (str, _("\nMessage: %s"), message);
 546
 547   event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 548     NULL, event_pending_subscribe_func, NULL);
 549
 550   g_string_free (str, TRUE);
 551 }
 552
 553 static GObject *
 554 event_manager_constructor (GType type,
 555                            guint n_props,
 556                            GObjectConstructParam *props)
 557 {
 558         GObject *retval;
 559
 560         if (manager_singleton) {
 561                 retval = g_object_ref (manager_singleton);
 562         } else {
 563                 retval = G_OBJECT_CLASS (empathy_event_manager_parent_class)->constructor
 564                         (type, n_props, props);
 565
 566                 manager_singleton = EMPATHY_EVENT_MANAGER (retval);
 567                 g_object_add_weak_pointer (retval, (gpointer *) &manager_singleton);
 568         }
 569
 570         return retval;
 571 }
 572
 573 static void
 574 event_manager_finalize (GObject *object)
 575 {
 576   EmpathyEventManagerPriv *priv = GET_PRIV (object);
 577
 578   g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 579   g_slist_free (priv->events);
 580   g_slist_foreach (priv->approvals, (GFunc) event_manager_approval_free, NULL);
 581   g_slist_free (priv->approvals);
 582   g_object_unref (priv->contact_manager);
 583   g_object_unref (priv->dispatcher);
 584 }
 585
 586 static void
 587 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 588 {
 589   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 590
 591   object_class->finalize = event_manager_finalize;
 592   object_class->constructor = event_manager_constructor;
 593
 594   signals[EVENT_ADDED] =
 595     g_signal_new ("event-added",
 596       G_TYPE_FROM_CLASS (klass),
 597       G_SIGNAL_RUN_LAST,
 598       0,
 599       NULL, NULL,
 600       g_cclosure_marshal_VOID__POINTER,
 601       G_TYPE_NONE,
 602       1, G_TYPE_POINTER);
 603
 604   signals[EVENT_REMOVED] =
 605   g_signal_new ("event-removed",
 606       G_TYPE_FROM_CLASS (klass),
 607       G_SIGNAL_RUN_LAST,
 608       0,
 609       NULL, NULL,
 610       g_cclosure_marshal_VOID__POINTER,
 611       G_TYPE_NONE, 1, G_TYPE_POINTER);
 612
 613   g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 614 }
 615
 616 static void
 617 empathy_event_manager_init (EmpathyEventManager *manager)
 618 {
 619   EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 620     EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 621
 622   manager->priv = priv;
 623
 624   priv->dispatcher = empathy_dispatcher_dup_singleton ();
 625   priv->contact_manager = empathy_contact_manager_dup_singleton ();
 626   g_signal_connect (priv->dispatcher, "approve",
 627     G_CALLBACK (event_manager_approve_channel_cb), manager);
 628   g_signal_connect (priv->contact_manager, "pendings-changed",
 629     G_CALLBACK (event_manager_pendings_changed_cb), manager);
 630 }
 631
 632 EmpathyEventManager *
 633 empathy_event_manager_dup_singleton (void)
 634 {
 635   return g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 636 }
 637
 638 GSList *
 639 empathy_event_manager_get_events (EmpathyEventManager *manager)
 640 {
 641   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 642
 643   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 644
 645   return priv->events;
 646 }
 647
 648 EmpathyEvent *
 649 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 650 {
 651   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 652
 653   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 654
 655   return priv->events ? priv->events->data : NULL;
 656 }
 657
 658 void
 659 empathy_event_activate (EmpathyEvent *event_public)
 660 {
 661   EventPriv *event = (EventPriv*) event_public;
 662
 663   g_return_if_fail (event_public != NULL);
 664
 665   if (event->func)
 666     event->func (event);
 667   else
 668     event_remove (event);
 669 }