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
 385     }
 386   else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA))
 387     {
 388       EmpathyContact *contact;
 389       EmpathyTpCall *call = EMPATHY_TP_CALL (
 390           empathy_dispatch_operation_get_channel_wrapper (operation));
 391
 392       g_object_get (G_OBJECT (call), "contact", &contact, NULL);
 393
 394       if (contact == NULL)
 395         {
 396           g_signal_connect (call, "notify::contact",
 397             G_CALLBACK (event_manager_media_channel_contact_changed_cb),
 398             approval);
 399         }
 400       else
 401         {
 402           approval->contact = contact;
 403           event_manager_media_channel_got_contact (approval);
 404         }
 405
 406     }
 407   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER))
 408     {
 409       EmpathyContact        *contact;
 410       gchar                 *msg;
 411       TpHandle               handle;
 412       McAccount             *account;
 413       EmpathyContactFactory *factory;
 414       TpChannel *channel = empathy_dispatch_operation_get_channel (operation);
 415
 416       factory = empathy_contact_factory_dup_singleton ();
 417       handle = tp_channel_get_handle (channel, NULL);
 418       account = empathy_channel_get_account (channel);
 419
 420       contact = empathy_contact_factory_get_from_handle (factory, account,
 421         handle);
 422
 423       empathy_contact_run_until_ready (contact,
 424         EMPATHY_CONTACT_READY_NAME, NULL);
 425
 426       msg = g_strdup_printf (_("Incoming file transfer from %s"),
 427         empathy_contact_get_name (contact));
 428
 429       event_manager_add (manager, contact, EMPATHY_IMAGE_DOCUMENT_SEND,
 430         msg, approval, event_channel_process_func, NULL);
 431
 432       g_object_unref (factory);
 433       g_object_unref (account);
 434     }
 435   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE))
 436     {
 437       EmpathyContact        *contact;
 438       TpHandle               handle;
 439       McAccount             *account;
 440       EmpathyContactFactory *factory;
 441       EmpathyTubeDispatch *tube_dispatch;
 442       TpChannel *channel;
 443
 444       channel = empathy_dispatch_operation_get_channel (operation);
 445
 446       factory = empathy_contact_factory_new ();
 447       handle = tp_channel_get_handle (channel, NULL);
 448       account = empathy_channel_get_account (channel);
 449
 450       contact = empathy_contact_factory_get_from_handle (factory, account,
 451         handle);
 452
 453       tube_dispatch = empathy_tube_dispatch_new (operation);
 454
 455       approval->contact = contact;
 456       approval->tube_dispatch = tube_dispatch;
 457
 458       empathy_contact_call_when_ready (contact,
 459         EMPATHY_CONTACT_READY_NAME, event_manager_tube_got_contact_name_cb,
 460         approval);
 461
 462       g_object_unref (factory);
 463       g_object_unref (account);
 464     }
 465   else
 466     {
 467       DEBUG ("Unknown channel type, ignoring..");
 468     }
 469 }
 470
 471 static void
 472 event_pending_subscribe_func (EventPriv *event)
 473 {
 474   empathy_subscription_dialog_show (event->public.contact, NULL);
 475   event_remove (event);
 476 }
 477
 478 static void
 479 event_manager_pendings_changed_cb (EmpathyContactList  *list,
 480   EmpathyContact *contact, EmpathyContact *actor,
 481   guint reason, gchar *message, gboolean is_pending,
 482   EmpathyEventManager *manager)
 483 {
 484   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 485   GString                 *str;
 486
 487   if (!is_pending)
 488     {
 489       GSList *l;
 490
 491       for (l = priv->events; l; l = l->next)
 492         {
 493           EventPriv *event = l->data;
 494
 495       if (event->public.contact == contact &&
 496           event->func == event_pending_subscribe_func)
 497         {
 498           event_remove (event);
 499           break;
 500         }
 501       }
 502
 503       return;
 504     }
 505
 506   empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL);
 507
 508   str = g_string_new (NULL);
 509   g_string_printf (str, _("Subscription requested by %s"),
 510     empathy_contact_get_name (contact));
 511
 512   if (!G_STR_EMPTY (message))
 513     g_string_append_printf (str, _("\nMessage: %s"), message);
 514
 515   event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
 516     NULL, event_pending_subscribe_func, NULL);
 517
 518   g_string_free (str, TRUE);
 519 }
 520
 521 static GObject *
 522 event_manager_constructor (GType type,
 523                            guint n_props,
 524                            GObjectConstructParam *props)
 525 {
 526         GObject *retval;
 527
 528         if (manager_singleton) {
 529                 retval = g_object_ref (manager_singleton);
 530         } else {
 531                 retval = G_OBJECT_CLASS (empathy_event_manager_parent_class)->constructor
 532                         (type, n_props, props);
 533
 534                 manager_singleton = EMPATHY_EVENT_MANAGER (retval);
 535                 g_object_add_weak_pointer (retval, (gpointer *) &manager_singleton);
 536         }
 537
 538         return retval;
 539 }
 540
 541 static void
 542 event_manager_finalize (GObject *object)
 543 {
 544   EmpathyEventManagerPriv *priv = GET_PRIV (object);
 545
 546   g_slist_foreach (priv->events, (GFunc) event_free, NULL);
 547   g_slist_free (priv->events);
 548   g_slist_foreach (priv->approvals, (GFunc) event_manager_approval_free, NULL);
 549   g_slist_free (priv->approvals);
 550   g_object_unref (priv->contact_manager);
 551   g_object_unref (priv->dispatcher);
 552 }
 553
 554 static void
 555 empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
 556 {
 557   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 558
 559   object_class->finalize = event_manager_finalize;
 560   object_class->constructor = event_manager_constructor;
 561
 562   signals[EVENT_ADDED] =
 563     g_signal_new ("event-added",
 564       G_TYPE_FROM_CLASS (klass),
 565       G_SIGNAL_RUN_LAST,
 566       0,
 567       NULL, NULL,
 568       g_cclosure_marshal_VOID__POINTER,
 569       G_TYPE_NONE,
 570       1, G_TYPE_POINTER);
 571
 572   signals[EVENT_REMOVED] =
 573   g_signal_new ("event-removed",
 574       G_TYPE_FROM_CLASS (klass),
 575       G_SIGNAL_RUN_LAST,
 576       0,
 577       NULL, NULL,
 578       g_cclosure_marshal_VOID__POINTER,
 579       G_TYPE_NONE, 1, G_TYPE_POINTER);
 580
 581   g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
 582 }
 583
 584 static void
 585 empathy_event_manager_init (EmpathyEventManager *manager)
 586 {
 587   EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 588     EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
 589
 590   manager->priv = priv;
 591
 592   priv->dispatcher = empathy_dispatcher_dup_singleton ();
 593   priv->contact_manager = empathy_contact_manager_dup_singleton ();
 594   g_signal_connect (priv->dispatcher, "approve",
 595     G_CALLBACK (event_manager_approve_channel_cb), manager);
 596   g_signal_connect (priv->contact_manager, "pendings-changed",
 597     G_CALLBACK (event_manager_pendings_changed_cb), manager);
 598 }
 599
 600 EmpathyEventManager *
 601 empathy_event_manager_dup_singleton (void)
 602 {
 603   return g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
 604 }
 605
 606 GSList *
 607 empathy_event_manager_get_events (EmpathyEventManager *manager)
 608 {
 609   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 610
 611   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 612
 613   return priv->events;
 614 }
 615
 616 EmpathyEvent *
 617 empathy_event_manager_get_top_event (EmpathyEventManager *manager)
 618 {
 619   EmpathyEventManagerPriv *priv = GET_PRIV (manager);
 620
 621   g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
 622
 623   return priv->events ? priv->events->data : NULL;
 624 }
 625
 626 void
 627 empathy_event_activate (EmpathyEvent *event_public)
 628 {
 629   EventPriv *event = (EventPriv*) event_public;
 630
 631   g_return_if_fail (event_public != NULL);
 632
 633   if (event->func)
 634     event->func (event);
 635   else
 636     event_remove (event);
 637 }