libempathy-gtk/empathy-chat.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2002-2007 Imendio AB
   4  * Copyright (C) 2007-2010 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Mikael Hallendal <micke@imendio.com>
  22  *          Richard Hult <richard@imendio.com>
  23  *          Martyn Russell <martyn@imendio.com>
  24  *          Geert-Jan Van den Bogaerde <geertjan@gnome.org>
  25  *          Xavier Claessens <xclaesse@gmail.com>
  26  */
  27
  28 #include <config.h>
  29
  30 #include <string.h>
  31 #include <stdlib.h>
  32
  33 #undef G_DISABLE_DEPRECATED /* for GCompletion */
  34 #include <gdk/gdkkeysyms.h>
  35 #include <glib/gi18n-lib.h>
  36 #include <gtk/gtk.h>
  37
  38 #include <telepathy-glib/account-manager.h>
  39 #include <telepathy-glib/util.h>
  40 #include <telepathy-logger/log-manager.h>
  41 #include <telepathy-logger/text-event.h>
  42 #include <libempathy/empathy-contact-list.h>
  43 #include <libempathy/empathy-gsettings.h>
  44 #include <libempathy/empathy-keyring.h>
  45 #include <libempathy/empathy-utils.h>
  46 #include <libempathy/empathy-request-util.h>
  47 #include <libempathy/empathy-chatroom-manager.h>
  48
  49 #include "empathy-chat.h"
  50 #include "empathy-spell.h"
  51 #include "empathy-contact-dialogs.h"
  52 #include "empathy-contact-list-store.h"
  53 #include "empathy-contact-list-view.h"
  54 #include "empathy-contact-menu.h"
  55 #include "empathy-input-text-view.h"
  56 #include "empathy-search-bar.h"
  57 #include "empathy-theme-manager.h"
  58 #include "empathy-theme-adium.h"
  59 #include "empathy-smiley-manager.h"
  60 #include "empathy-ui-utils.h"
  61 #include "empathy-string-parser.h"
  62 #include "extensions/extensions.h"
  63
  64 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
  65 #include <libempathy/empathy-debug.h>
  66
  67 #define IS_ENTER(v) (v == GDK_KEY_Return || v == GDK_KEY_ISO_Enter || v == GDK_KEY_KP_Enter)
  68 #define COMPOSING_STOP_TIMEOUT 5
  69
  70 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChat)
  71 struct _EmpathyChatPriv {
  72         EmpathyTpChat     *tp_chat;
  73         TpAccount         *account;
  74         gchar             *id;
  75         gchar             *name;
  76         gchar             *subject;
  77         EmpathyContact    *remote_contact;
  78         gboolean           show_contacts;
  79
  80         GSettings         *gsettings_chat;
  81         GSettings         *gsettings_ui;
  82
  83         TplLogManager     *log_manager;
  84         TpAccountManager  *account_manager;
  85         GList             *input_history;
  86         GList             *input_history_current;
  87         GList             *compositors;
  88         GCompletion       *completion;
  89         guint              composing_stop_timeout_id;
  90         guint              block_events_timeout_id;
  91         TpHandleType       handle_type;
  92         gint               contacts_width;
  93         gboolean           has_input_vscroll;
  94
  95         /* TRUE if spell checking is enabled, FALSE otherwise.
  96          * This is to keep track of the last state of spell checking
  97          * when it changes. */
  98         gboolean           spell_checking_enabled;
  99
 100         /* These store the signal handler ids for the enclosed text entry. */
 101         gulong             insert_text_id;
 102         gulong             delete_range_id;
 103         gulong             notify_cursor_position_id;
 104
 105         /* Source func ID for update_misspelled_words () */
 106         guint              update_misspelled_words_id;
 107         /* Source func ID for save_paned_pos_timeout () */
 108         guint              save_paned_pos_id;
 109         /* Source func ID for chat_contacts_visible_timeout_cb () */
 110         guint              contacts_visible_id;
 111
 112         GtkWidget         *widget;
 113         GtkWidget         *hpaned;
 114         GtkWidget         *vbox_left;
 115         GtkWidget         *scrolled_window_chat;
 116         GtkWidget         *scrolled_window_input;
 117         GtkWidget         *scrolled_window_contacts;
 118         GtkWidget         *hbox_topic;
 119         GtkWidget         *expander_topic;
 120         GtkWidget         *label_topic;
 121         GtkWidget         *contact_list_view;
 122         GtkWidget         *info_bar_vbox;
 123         GtkWidget         *search_bar;
 124
 125         guint              unread_messages;
 126         guint              unread_messages_when_offline;
 127         /* TRUE if the pending messages can be displayed. This is to avoid to show
 128          * pending messages *before* messages from logs. (#603980) */
 129         gboolean           can_show_pending;
 130
 131         /* FIXME: retrieving_backlogs flag is a workaround for Bug#610994 and should
 132          * be differently handled since it introduces another race condition, which
 133          * is really hard to occur, but still possible.
 134          *
 135          * With the current workaround (which has the race above), we need to be
 136          * sure to ACK any pending messages only when the retrieval of backlogs is
 137          * finished, that's why using retrieving_backlogs flag.
 138          * empathy_chat_messages_read () will check this variable and not ACK
 139          * anything when TRUE. It will be set TRUE at chat_constructed () and set
 140          * back to FALSE when the backlog has been retrieved and the pending
 141          * messages actually showed to the user.
 142          *
 143          * Race condition introduced with this workaround:
 144          * Scenario: a message is pending, the user is notified and selects the tab.
 145          * the tab with a pending message is focused before the messages are properly
 146          * shown (since the preparation of the window is slower AND async WRT the
 147          * tab showing), which means the user won't see any new messages (rare but
 148          * possible), if he/she will change tab focus before the messages are
 149          * properly shown, the tab will be set as 'seen' and the user won't be
 150          * notified again about the already notified pending messages when the
 151          * messages in tab will be properly shown */
 152         gboolean           retrieving_backlogs;
 153         gboolean           sms_channel;
 154
 155         /* we need to know whether populate-popup happened in response to
 156          * the keyboard or the mouse. We can't ask GTK for the most recent
 157          * event, because it will be a notify event. Instead we track it here */
 158         GdkEventType       most_recent_event_type;
 159 };
 160
 161 typedef struct {
 162         gchar *text; /* Original message that was specified
 163                       * upon entry creation. */
 164         gchar *modified_text; /* Message that was modified by user.
 165                                * When no modifications were made, it is NULL */
 166 } InputHistoryEntry;
 167
 168 enum {
 169         COMPOSING,
 170         NEW_MESSAGE,
 171         PART_COMMAND_ENTERED,
 172         LAST_SIGNAL
 173 };
 174
 175 enum {
 176         PROP_0,
 177         PROP_TP_CHAT,
 178         PROP_ACCOUNT,
 179         PROP_ID,
 180         PROP_NAME,
 181         PROP_SUBJECT,
 182         PROP_REMOTE_CONTACT,
 183         PROP_SHOW_CONTACTS,
 184         PROP_SMS_CHANNEL,
 185         PROP_N_MESSAGES_SENDING,
 186         PROP_NB_UNREAD_MESSAGES,
 187 };
 188
 189 static guint signals[LAST_SIGNAL] = { 0 };
 190
 191 G_DEFINE_TYPE (EmpathyChat, empathy_chat, GTK_TYPE_BOX);
 192
 193 static gboolean update_misspelled_words (gpointer data);
 194
 195 static void
 196 chat_get_property (GObject    *object,
 197                    guint       param_id,
 198                    GValue     *value,
 199                    GParamSpec *pspec)
 200 {
 201         EmpathyChat *chat = EMPATHY_CHAT (object);
 202         EmpathyChatPriv *priv = GET_PRIV (object);
 203
 204         switch (param_id) {
 205         case PROP_TP_CHAT:
 206                 g_value_set_object (value, priv->tp_chat);
 207                 break;
 208         case PROP_ACCOUNT:
 209                 g_value_set_object (value, priv->account);
 210                 break;
 211         case PROP_NAME:
 212                 g_value_take_string (value, empathy_chat_dup_name (chat));
 213                 break;
 214         case PROP_ID:
 215                 g_value_set_string (value, priv->id);
 216                 break;
 217         case PROP_SUBJECT:
 218                 g_value_set_string (value, priv->subject);
 219                 break;
 220         case PROP_REMOTE_CONTACT:
 221                 g_value_set_object (value, priv->remote_contact);
 222                 break;
 223         case PROP_SHOW_CONTACTS:
 224                 g_value_set_boolean (value, priv->show_contacts);
 225                 break;
 226         case PROP_SMS_CHANNEL:
 227                 g_value_set_boolean (value, priv->sms_channel);
 228                 break;
 229         case PROP_N_MESSAGES_SENDING:
 230                 g_value_set_uint (value,
 231                         empathy_chat_get_n_messages_sending (chat));
 232                 break;
 233         case PROP_NB_UNREAD_MESSAGES:
 234                 g_value_set_uint (value,
 235                         empathy_chat_get_nb_unread_messages (chat));
 236                 break;
 237         default:
 238                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 239                 break;
 240         };
 241 }
 242
 243 static void
 244 chat_set_property (GObject      *object,
 245                    guint         param_id,
 246                    const GValue *value,
 247                    GParamSpec   *pspec)
 248 {
 249         EmpathyChat *chat = EMPATHY_CHAT (object);
 250
 251         switch (param_id) {
 252         case PROP_TP_CHAT:
 253                 empathy_chat_set_tp_chat (chat, EMPATHY_TP_CHAT (g_value_get_object (value)));
 254                 break;
 255         case PROP_SHOW_CONTACTS:
 256                 empathy_chat_set_show_contacts (chat, g_value_get_boolean (value));
 257                 break;
 258         default:
 259                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 260                 break;
 261         };
 262 }
 263
 264 static void
 265 account_reconnected (EmpathyChat *chat,
 266                         TpAccount *account)
 267 {
 268         EmpathyChatPriv *priv = GET_PRIV (chat);
 269
 270         DEBUG ("Account reconnected, request a new Text channel");
 271
 272         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 273         * report the error if any but this is blocked by
 274         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 275         switch (priv->handle_type) {
 276                 case TP_HANDLE_TYPE_CONTACT:
 277                         if (priv->sms_channel)
 278                                 empathy_sms_contact_id (
 279                                         account, priv->id,
 280                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 281                                         NULL, NULL);
 282                         else
 283                                 empathy_chat_with_contact_id (
 284                                         account, priv->id,
 285                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 286                                         NULL, NULL);
 287                         break;
 288                 case TP_HANDLE_TYPE_ROOM:
 289                         empathy_join_muc (account, priv->id,
 290                                 TP_USER_ACTION_TIME_NOT_USER_ACTION);
 291                         break;
 292                 case TP_HANDLE_TYPE_NONE:
 293                 case TP_HANDLE_TYPE_LIST:
 294                 case TP_HANDLE_TYPE_GROUP:
 295                 default:
 296                         g_assert_not_reached ();
 297                         break;
 298         }
 299
 300         g_object_unref (chat);
 301 }
 302
 303 static void
 304 chat_new_connection_cb (TpAccount   *account,
 305                         guint        old_status,
 306                         guint        new_status,
 307                         guint        reason,
 308                         gchar       *dbus_error_name,
 309                         GHashTable  *details,
 310                         EmpathyChat *chat)
 311 {
 312         EmpathyChatPriv *priv = GET_PRIV (chat);
 313
 314         if (new_status != TP_CONNECTION_STATUS_CONNECTED)
 315                 return;
 316
 317         if (priv->tp_chat != NULL || account != priv->account ||
 318             priv->handle_type == TP_HANDLE_TYPE_NONE ||
 319             EMP_STR_EMPTY (priv->id))
 320                 return;
 321
 322         g_object_ref (chat);
 323
 324         account_reconnected (chat, account);
 325 }
 326
 327 static void
 328 chat_composing_remove_timeout (EmpathyChat *chat)
 329 {
 330         EmpathyChatPriv *priv;
 331
 332         priv = GET_PRIV (chat);
 333
 334         if (priv->composing_stop_timeout_id) {
 335                 g_source_remove (priv->composing_stop_timeout_id);
 336                 priv->composing_stop_timeout_id = 0;
 337         }
 338 }
 339
 340 static void
 341 set_chate_state_cb (GObject *source,
 342                     GAsyncResult *result,
 343                     gpointer user_data)
 344 {
 345         GError *error = NULL;
 346
 347         if (!tp_text_channel_set_chat_state_finish (TP_TEXT_CHANNEL (source), result,
 348                 &error)) {
 349                 DEBUG ("Failed to set chat state: %s", error->message);
 350                 g_error_free (error);
 351         }
 352 }
 353
 354 static void
 355 set_chat_state (EmpathyChat *self,
 356                 TpChannelChatState state)
 357 {
 358         EmpathyChatPriv *priv = GET_PRIV (self);
 359
 360         if (!tp_proxy_has_interface_by_id (priv->tp_chat,
 361                 TP_IFACE_QUARK_CHANNEL_INTERFACE_CHAT_STATE))
 362                 return;
 363
 364         tp_text_channel_set_chat_state_async (TP_TEXT_CHANNEL (priv->tp_chat), state,
 365                 set_chate_state_cb, self);
 366 }
 367
 368 static gboolean
 369 chat_composing_stop_timeout_cb (EmpathyChat *chat)
 370 {
 371         EmpathyChatPriv *priv;
 372
 373         priv = GET_PRIV (chat);
 374
 375         priv->composing_stop_timeout_id = 0;
 376         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_PAUSED);
 377
 378         return FALSE;
 379 }
 380
 381 static void
 382 chat_composing_start (EmpathyChat *chat)
 383 {
 384         EmpathyChatPriv *priv;
 385
 386         priv = GET_PRIV (chat);
 387
 388         if (priv->composing_stop_timeout_id) {
 389                 /* Just restart the timeout */
 390                 chat_composing_remove_timeout (chat);
 391         } else {
 392                 set_chat_state (chat, TP_CHANNEL_CHAT_STATE_COMPOSING);
 393         }
 394
 395         priv->composing_stop_timeout_id = g_timeout_add_seconds (
 396                 COMPOSING_STOP_TIMEOUT,
 397                 (GSourceFunc) chat_composing_stop_timeout_cb,
 398                 chat);
 399 }
 400
 401 static void
 402 chat_composing_stop (EmpathyChat *chat)
 403 {
 404         chat_composing_remove_timeout (chat);
 405         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_ACTIVE);
 406 }
 407
 408 static gint
 409 chat_input_history_entry_cmp (InputHistoryEntry *entry,
 410                               const gchar *text)
 411 {
 412         if (!tp_strdiff (entry->text, text)) {
 413                 if (entry->modified_text != NULL) {
 414                         /* Modified entry and single string cannot be equal. */
 415                         return 1;
 416                 }
 417                 return 0;
 418         }
 419         return 1;
 420 }
 421
 422 static InputHistoryEntry *
 423 chat_input_history_entry_new_with_text (const gchar *text)
 424 {
 425         InputHistoryEntry *entry;
 426         entry = g_slice_new0 (InputHistoryEntry);
 427         entry->text = g_strdup (text);
 428
 429         return entry;
 430 }
 431
 432 static void
 433 chat_input_history_entry_free (InputHistoryEntry *entry)
 434 {
 435         g_free (entry->text);
 436         g_free (entry->modified_text);
 437         g_slice_free (InputHistoryEntry, entry);
 438 }
 439
 440 static void
 441 chat_input_history_entry_revert (InputHistoryEntry *entry)
 442 {
 443         g_free (entry->modified_text);
 444         entry->modified_text = NULL;
 445 }
 446
 447 static void
 448 chat_input_history_entry_update_text (InputHistoryEntry *entry,
 449                                       const gchar *text)
 450 {
 451         gchar *old;
 452
 453         if (!tp_strdiff (text, entry->text)) {
 454                 g_free (entry->modified_text);
 455                 entry->modified_text = NULL;
 456                 return;
 457         }
 458
 459         old = entry->modified_text;
 460         entry->modified_text = g_strdup (text);
 461         g_free (old);
 462 }
 463
 464 static const gchar *
 465 chat_input_history_entry_get_text (InputHistoryEntry *entry)
 466 {
 467         if (entry == NULL) {
 468                 return NULL;
 469         }
 470
 471         if (entry->modified_text != NULL) {
 472                 return entry->modified_text;
 473         }
 474         return entry->text;
 475 }
 476
 477 static GList *
 478 chat_input_history_remove_item (GList *list,
 479                                 GList *item)
 480 {
 481         list = g_list_remove_link (list, item);
 482         chat_input_history_entry_free (item->data);
 483         g_list_free_1 (item);
 484         return list;
 485 }
 486
 487 static void
 488 chat_input_history_revert (EmpathyChat *chat)
 489 {
 490         EmpathyChatPriv   *priv;
 491         GList             *list;
 492         GList             *item1;
 493         GList             *item2;
 494         InputHistoryEntry *entry;
 495
 496         priv = GET_PRIV (chat);
 497         list = priv->input_history;
 498
 499         if (list == NULL) {
 500                 DEBUG ("No input history");
 501                 return;
 502         }
 503
 504         /* Delete temporary entry */
 505         if (priv->input_history_current != NULL) {
 506                 item1 = list;
 507                 list = chat_input_history_remove_item (list, item1);
 508                 if (priv->input_history_current == item1) {
 509                         /* Removed temporary entry was current entry */
 510                         priv->input_history = list;
 511                         priv->input_history_current = NULL;
 512                         return;
 513                 }
 514         }
 515         else {
 516                 /* There is no entry to revert */
 517                 return;
 518         }
 519
 520         /* Restore the current history entry to original value */
 521         item1 = priv->input_history_current;
 522         entry = item1->data;
 523         chat_input_history_entry_revert (entry);
 524
 525         /* Remove restored entry if there is other occurance before this entry */
 526         item2 = g_list_find_custom (list, chat_input_history_entry_get_text (entry),
 527                                     (GCompareFunc) chat_input_history_entry_cmp);
 528         if (item2 != item1) {
 529                 list = chat_input_history_remove_item (list, item1);
 530         }
 531         else {
 532                 /* Remove other occurance of the restored entry */
 533                 item2 = g_list_find_custom (item1->next,
 534                                             chat_input_history_entry_get_text (entry),
 535                                             (GCompareFunc) chat_input_history_entry_cmp);
 536                 if (item2 != NULL) {
 537                         list = chat_input_history_remove_item (list, item2);
 538                 }
 539         }
 540
 541         priv->input_history_current = NULL;
 542         priv->input_history = list;
 543 }
 544
 545 static void
 546 chat_input_history_add (EmpathyChat  *chat,
 547                         const gchar *str,
 548                         gboolean temporary)
 549 {
 550         EmpathyChatPriv   *priv;
 551         GList             *list;
 552         GList             *item;
 553         InputHistoryEntry *entry;
 554
 555         priv = GET_PRIV (chat);
 556
 557         list = priv->input_history;
 558
 559         /* Remove any other occurances of this entry, if not temporary */
 560         if (!temporary) {
 561                 while ((item = g_list_find_custom (list, str,
 562                     (GCompareFunc) chat_input_history_entry_cmp)) != NULL) {
 563                         list = chat_input_history_remove_item (list, item);
 564                 }
 565
 566                 /* Trim the list to the last 10 items */
 567                 while (g_list_length (list) > 10) {
 568                         item = g_list_last (list);
 569                         if (item != NULL) {
 570                                 list = chat_input_history_remove_item (list, item);
 571                         }
 572                 }
 573         }
 574
 575
 576
 577         /* Add new entry */
 578         entry = chat_input_history_entry_new_with_text (str);
 579         list = g_list_prepend (list, entry);
 580
 581         /* Set the list and the current item pointer */
 582         priv->input_history = list;
 583         if (temporary) {
 584                 priv->input_history_current = list;
 585         }
 586         else {
 587                 priv->input_history_current = NULL;
 588         }
 589 }
 590
 591 static const gchar *
 592 chat_input_history_get_next (EmpathyChat *chat)
 593 {
 594         EmpathyChatPriv *priv;
 595         GList           *item;
 596         const gchar     *msg;
 597
 598         priv = GET_PRIV (chat);
 599
 600         if (priv->input_history == NULL) {
 601                 DEBUG ("No input history, next entry is NULL");
 602                 return NULL;
 603         }
 604         g_assert (priv->input_history_current != NULL);
 605
 606         if ((item = g_list_next (priv->input_history_current)) == NULL)
 607         {
 608                 item = priv->input_history_current;
 609         }
 610
 611         msg = chat_input_history_entry_get_text (item->data);
 612
 613         DEBUG ("Returning next entry: '%s'", msg);
 614
 615         priv->input_history_current = item;
 616
 617         return msg;
 618 }
 619
 620 static const gchar *
 621 chat_input_history_get_prev (EmpathyChat *chat)
 622 {
 623         EmpathyChatPriv *priv;
 624         GList           *item;
 625         const gchar     *msg;
 626
 627         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 628
 629         priv = GET_PRIV (chat);
 630
 631         if (priv->input_history == NULL) {
 632                 DEBUG ("No input history, previous entry is NULL");
 633                 return NULL;
 634         }
 635
 636         if (priv->input_history_current == NULL)
 637         {
 638                 return NULL;
 639         }
 640         else if ((item = g_list_previous (priv->input_history_current)) == NULL)
 641         {
 642                 item = priv->input_history_current;
 643         }
 644
 645         msg = chat_input_history_entry_get_text (item->data);
 646
 647         DEBUG ("Returning previous entry: '%s'", msg);
 648
 649         priv->input_history_current = item;
 650
 651         return msg;
 652 }
 653
 654 static void
 655 chat_input_history_update (EmpathyChat *chat,
 656                            GtkTextBuffer *buffer)
 657 {
 658         EmpathyChatPriv      *priv;
 659         GtkTextIter           start, end;
 660         gchar                *text;
 661         InputHistoryEntry    *entry;
 662
 663         priv = GET_PRIV (chat);
 664
 665         gtk_text_buffer_get_bounds (buffer, &start, &end);
 666         text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 667
 668         if (priv->input_history_current == NULL) {
 669                 /* Add the current text temporarily to the history */
 670                 chat_input_history_add (chat, text, TRUE);
 671                 g_free (text);
 672                 return;
 673         }
 674
 675         /* Save the changes in the history */
 676         entry = priv->input_history_current->data;
 677         if (tp_strdiff (chat_input_history_entry_get_text (entry), text)) {
 678                 chat_input_history_entry_update_text (entry, text);
 679         }
 680
 681         g_free (text);
 682 }
 683
 684 typedef struct {
 685         EmpathyChat *chat;
 686         gchar *message;
 687 } ChatCommandMsgData;
 688
 689 static void
 690 chat_command_msg_cb (GObject *source,
 691                               GAsyncResult *result,
 692                               gpointer                  user_data)
 693 {
 694         ChatCommandMsgData *data = user_data;
 695         GError *error = NULL;
 696         TpChannel *channel;
 697
 698         channel = tp_account_channel_request_ensure_and_observe_channel_finish (
 699                                         TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error);
 700
 701         if (channel == NULL) {
 702                 DEBUG ("Failed to get channel: %s", error->message);
 703                 g_error_free (error);
 704
 705                 empathy_chat_view_append_event (data->chat->view,
 706                         _("Failed to open private chat"));
 707                 goto OUT;
 708         }
 709
 710         if (!EMP_STR_EMPTY (data->message) && TP_IS_TEXT_CHANNEL (channel)) {
 711                 TpTextChannel *text = (TpTextChannel *) channel;
 712                 TpMessage *msg;
 713
 714                 msg = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 715                         data->message);
 716
 717                 tp_text_channel_send_message_async (text, msg, 0, NULL, NULL);
 718
 719                 g_object_unref (msg);
 720         }
 721
 722         g_object_unref (channel);
 723
 724 OUT:
 725         g_free (data->message);
 726         g_slice_free (ChatCommandMsgData, data);
 727 }
 728
 729 static gboolean
 730 nick_command_supported (EmpathyChat *chat)
 731 {
 732         EmpathyChatPriv * priv = GET_PRIV (chat);
 733         TpConnection    *connection;
 734
 735         connection = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
 736         return tp_proxy_has_interface_by_id (connection,
 737                 EMP_IFACE_QUARK_CONNECTION_INTERFACE_RENAMING);
 738 }
 739
 740 static gboolean
 741 part_command_supported (EmpathyChat *chat)
 742 {
 743         EmpathyChatPriv * priv = GET_PRIV (chat);
 744
 745         return tp_proxy_has_interface_by_id (priv->tp_chat,
 746                         TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);
 747 }
 748
 749 static void
 750 chat_command_clear (EmpathyChat *chat,
 751                     GStrv        strv)
 752 {
 753         empathy_chat_view_clear (chat->view);
 754 }
 755
 756 static void
 757 chat_command_topic (EmpathyChat *chat,
 758                     GStrv        strv)
 759 {
 760         EmpathyChatPriv *priv = GET_PRIV (chat);
 761
 762         if (!empathy_tp_chat_supports_subject (priv->tp_chat)) {
 763                 empathy_chat_view_append_event (chat->view,
 764                         _("Topic not supported on this conversation"));
 765                 return;
 766         }
 767
 768         if (!empathy_tp_chat_can_set_subject (priv->tp_chat)) {
 769                 empathy_chat_view_append_event (chat->view,
 770                         _("You are not allowed to change the topic"));
 771                 return;
 772         }
 773
 774         empathy_tp_chat_set_subject (priv->tp_chat, strv[1]);
 775 }
 776
 777 void
 778 empathy_chat_join_muc (EmpathyChat *chat,
 779                    const gchar   *room)
 780 {
 781         EmpathyChatPriv *priv = GET_PRIV (chat);
 782
 783         empathy_join_muc (priv->account, room,
 784                 empathy_get_current_action_time ());
 785 }
 786
 787 static void
 788 chat_command_join (EmpathyChat *chat,
 789                    GStrv        strv)
 790 {
 791         guint i = 0;
 792
 793         GStrv rooms = g_strsplit_set (strv[1], ", ", -1);
 794
 795         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 796         * report the error if any but this is blocked by
 797         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 798         while (rooms[i] != NULL) {
 799                 /* ignore empty strings */
 800                 if (!EMP_STR_EMPTY (rooms[i])) {
 801                         empathy_chat_join_muc (chat, rooms[i]);
 802                 }
 803                 i++;
 804         }
 805         g_strfreev (rooms);
 806 }
 807
 808 static void
 809 chat_command_part (EmpathyChat *chat,
 810                            GStrv        strv)
 811 {
 812         g_signal_emit (chat, signals[PART_COMMAND_ENTERED], 0, strv);
 813 }
 814
 815 static void
 816 chat_command_msg_internal (EmpathyChat *chat,
 817                            const gchar *contact_id,
 818                            const gchar *message)
 819 {
 820         EmpathyChatPriv *priv = GET_PRIV (chat);
 821         ChatCommandMsgData *data;
 822         TpAccountChannelRequest *req;
 823         GHashTable *request;
 824
 825         request = tp_asv_new (
 826                 TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_TEXT,
 827                 TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 828                 TP_PROP_CHANNEL_TARGET_ID, G_TYPE_STRING, contact_id,
 829                 NULL);
 830
 831         req = tp_account_channel_request_new (priv->account, request,
 832                 empathy_get_current_action_time ());
 833
 834         /* FIXME: We should probably search in members alias. But this
 835          * is enough for IRC */
 836         data = g_slice_new (ChatCommandMsgData);
 837         data->chat = chat;
 838         data->message = g_strdup (message);
 839
 840         tp_account_channel_request_ensure_and_observe_channel_async (req,
 841                 EMPATHY_CHAT_BUS_NAME, NULL, chat_command_msg_cb, data);
 842
 843         g_object_unref (req);
 844         g_hash_table_unref (request);
 845 }
 846
 847 static void
 848 chat_command_query (EmpathyChat *chat,
 849                     GStrv        strv)
 850 {
 851         /* If <message> part is not defined,
 852          * strv[2] will be the terminal NULL */
 853         chat_command_msg_internal (chat, strv[1], strv[2]);
 854 }
 855
 856 static void
 857 chat_command_msg (EmpathyChat *chat,
 858                   GStrv        strv)
 859 {
 860         chat_command_msg_internal (chat, strv[1], strv[2]);
 861 }
 862
 863 static void
 864 callback_for_request_rename (TpProxy *proxy,
 865                   const GError *error,
 866                   gpointer user_data,
 867                   GObject *weak_object)
 868 {
 869         if (error != NULL) {
 870                 DEBUG ("Call to RequestRename method failed: %s",error->message);
 871         }
 872 }
 873
 874 static void
 875 chat_command_nick (EmpathyChat *chat,
 876                    GStrv        strv)
 877 {
 878         EmpathyChatPriv *priv = GET_PRIV (chat);
 879         TpProxy *proxy;
 880
 881         proxy = TP_PROXY (tp_account_get_connection (priv->account));
 882
 883         emp_cli_connection_interface_renaming_call_request_rename (proxy, -1,
 884                 strv[1], callback_for_request_rename, NULL, NULL, NULL);
 885 }
 886
 887 static void
 888 chat_command_me (EmpathyChat *chat,
 889                   GStrv        strv)
 890 {
 891         EmpathyChatPriv *priv = GET_PRIV (chat);
 892         TpMessage *message;
 893         TpTextChannel *channel;
 894
 895         channel = (TpTextChannel *) (priv->tp_chat);
 896
 897         if (!tp_text_channel_supports_message_type (channel,
 898                         TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION)) {
 899                 /* Action message are not supported, 'simulate' the action */
 900                 EmpathyContact *self_contact;
 901                 gchar *tmp;
 902
 903                 self_contact = empathy_tp_chat_get_self_contact (priv->tp_chat);
 904                 /* The TpChat can't be ready if it doesn't have the self contact */
 905                 g_assert (self_contact != NULL);
 906
 907                 tmp = g_strdup_printf ("%s %s", empathy_contact_get_alias (self_contact),
 908                         strv[1]);
 909                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 910                         tmp);
 911                 g_free (tmp);
 912         }
 913         else {
 914                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION,
 915                         strv[1]);
 916         }
 917
 918         empathy_tp_chat_send (priv->tp_chat, message);
 919         g_object_unref (message);
 920 }
 921
 922 static void
 923 chat_command_say (EmpathyChat *chat,
 924                   GStrv        strv)
 925 {
 926         EmpathyChatPriv *priv = GET_PRIV (chat);
 927         TpMessage *message;
 928
 929         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 930                 strv[1]);
 931         empathy_tp_chat_send (priv->tp_chat, message);
 932         g_object_unref (message);
 933 }
 934
 935 static void
 936 whois_got_contact_cb (TpConnection *connection,
 937                       guint n_contacts,
 938                       TpContact * const *contacts,
 939                       const gchar * const *requested_ids,
 940                       GHashTable *failed_id_errors,
 941                       const GError *error,
 942                       gpointer user_data,
 943                       GObject *weak_object)
 944 {
 945         EmpathyChat *chat = EMPATHY_CHAT (weak_object);
 946
 947         g_return_if_fail (n_contacts <= 1);
 948
 949         if (n_contacts == 0) {
 950                 GHashTableIter iter;
 951                 gpointer key = NULL, value = NULL;
 952                 gchar *id;
 953                 GError *id_error;
 954
 955                 /* tp-glib guarantees that the contacts you requested will be
 956                  * in failed_id_errors regardless of whether the individual
 957                  * contact was invalid or the whole operation failed.
 958                  */
 959                 g_hash_table_iter_init (&iter, failed_id_errors);
 960                 g_hash_table_iter_next (&iter, &key, &value);
 961                 id = key;
 962                 id_error = value;
 963
 964                 DEBUG ("Error getting TpContact for '%s': %s %u %s",
 965                         id, g_quark_to_string (id_error->domain),
 966                         id_error->code, id_error->message);
 967
 968                 if (error == NULL) {
 969                         /* The specific ID failed. */
 970                         gchar *event = g_strdup_printf (
 971                                 _("“%s” is not a valid contact ID"), id);
 972                         empathy_chat_view_append_event (chat->view, event);
 973                         g_free (event);
 974                 }
 975                 /* Otherwise we're disconnected or something; so the window
 976                  * will already say ‘Disconnected’, so let's not show anything.
 977                  */
 978         } else {
 979                 EmpathyContact *empathy_contact;
 980                 GtkWidget *window;
 981
 982                 g_return_if_fail (contacts[0] != NULL);
 983                 empathy_contact = empathy_contact_dup_from_tp_contact (
 984                         contacts[0]);
 985
 986                 window = gtk_widget_get_toplevel (GTK_WIDGET (chat));
 987                 /* If we're alive and this command is running, we'd better be
 988                  * in a window. */
 989                 g_return_if_fail (window != NULL);
 990                 g_return_if_fail (gtk_widget_is_toplevel (window));
 991                 empathy_contact_information_dialog_show (empathy_contact,
 992                         GTK_WINDOW (window));
 993                 g_object_unref (empathy_contact);
 994         }
 995 }
 996
 997 static void
 998 chat_command_whois (EmpathyChat *chat,
 999                     GStrv strv)
1000 {
1001         EmpathyChatPriv *priv = GET_PRIV (chat);
1002         TpConnection *conn;
1003
1004         conn = tp_channel_borrow_connection ((TpChannel *) priv->tp_chat);
1005         tp_connection_get_contacts_by_id (conn,
1006                 /* Element 0 of 'strv' is "whois"; element 1 is the contact ID
1007                  * entered by the user (including spaces, if any). */
1008                 1, (const gchar * const *) strv + 1,
1009                 0, NULL,
1010                 whois_got_contact_cb, NULL, NULL, G_OBJECT (chat));
1011 }
1012
1013 static void
1014 chat_command_whale (EmpathyChat *chat,
1015                     GStrv        strv)
1016 {
1017         EmpathyChatPriv *priv = GET_PRIV (chat);
1018         TpMessage *message;
1019
1020         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1021                 "\n\n\n"
1022                 "•_______________•");
1023         empathy_tp_chat_send (priv->tp_chat, message);
1024         g_object_unref (message);
1025 }
1026
1027 static void
1028 chat_command_babywhale (EmpathyChat *chat,
1029                         GStrv        strv)
1030 {
1031         EmpathyChatPriv *priv = GET_PRIV (chat);
1032         TpMessage *message;
1033
1034         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1035                 "\n"
1036                 "•_____•");
1037         empathy_tp_chat_send (priv->tp_chat, message);
1038         g_object_unref (message);
1039 }
1040
1041 static void
1042 chat_command_inspector (EmpathyChat *chat,
1043                     GStrv        strv)
1044 {
1045         if (EMPATHY_IS_THEME_ADIUM (chat->view)) {
1046                 empathy_theme_adium_show_inspector (
1047                         EMPATHY_THEME_ADIUM (chat->view));
1048         }
1049 }
1050
1051 static void chat_command_help (EmpathyChat *chat, GStrv strv);
1052
1053 typedef void (*ChatCommandFunc) (EmpathyChat *chat, GStrv strv);
1054
1055 typedef struct {
1056         const gchar *prefix;
1057         guint min_parts;
1058         guint max_parts;
1059         ChatCommandFunc func;
1060         gboolean (*is_supported)(EmpathyChat *chat);
1061         const gchar *help;
1062 } ChatCommandItem;
1063
1064 static ChatCommandItem commands[] = {
1065         {"clear", 1, 1, chat_command_clear, NULL,
1066          N_("/clear: clear all messages from the current conversation")},
1067
1068         {"topic", 2, 2, chat_command_topic, NULL,
1069          N_("/topic <topic>: set the topic of the current conversation")},
1070
1071         {"join", 2, 2, chat_command_join, NULL,
1072          N_("/join <chat room ID>: join a new chat room")},
1073
1074         {"j", 2, 2, chat_command_join, NULL,
1075          N_("/j <chat room ID>: join a new chat room")},
1076
1077         /* FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=643295 */
1078         {"part", 1, 3, chat_command_part, part_command_supported,
1079          N_("/part [<chat room ID>] [<reason>]: leave the chat room, "
1080             "by default the current one")},
1081
1082         {"query", 2, 3, chat_command_query, NULL,
1083          N_("/query <contact ID> [<message>]: open a private chat")},
1084
1085         {"msg", 3, 3, chat_command_msg, NULL,
1086          N_("/msg <contact ID> <message>: open a private chat")},
1087
1088         {"nick", 2, 2, chat_command_nick, nick_command_supported,
1089          N_("/nick <nickname>: change your nickname on the current server")},
1090
1091         {"me", 2, 2, chat_command_me, NULL,
1092          N_("/me <message>: send an ACTION message to the current conversation")},
1093
1094         {"say", 2, 2, chat_command_say, NULL,
1095          N_("/say <message>: send <message> to the current conversation. "
1096             "This is used to send a message starting with a '/'. For example: "
1097             "\"/say /join is used to join a new chat room\"")},
1098
1099         {"whois", 2, 2, chat_command_whois, NULL,
1100          N_("/whois <contact ID>: display information about a contact")},
1101
1102         {"help", 1, 2, chat_command_help, NULL,
1103          N_("/help [<command>]: show all supported commands. "
1104             "If <command> is defined, show its usage.")},
1105
1106         {"inspector", 1, 1, chat_command_inspector, NULL, NULL},
1107
1108         {"whale", 1, 1, chat_command_whale, NULL, NULL},
1109         {"babywhale", 1, 1, chat_command_babywhale, NULL, NULL},
1110 };
1111
1112 static void
1113 chat_command_show_help (EmpathyChat     *chat,
1114                         ChatCommandItem *item)
1115 {
1116         gchar *str;
1117
1118         if (item->help == NULL) {
1119                 return;
1120         }
1121
1122         str = g_strdup_printf (_("Usage: %s"), _(item->help));
1123         empathy_chat_view_append_event (chat->view, str);
1124         g_free (str);
1125 }
1126
1127 static void
1128 chat_command_help (EmpathyChat *chat,
1129                    GStrv        strv)
1130 {
1131         guint i;
1132
1133         /* If <command> part is not defined,
1134          * strv[1] will be the terminal NULL */
1135         if (strv[1] == NULL) {
1136                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1137                         if (commands[i].is_supported != NULL) {
1138                                 if (!commands[i].is_supported (chat)) {
1139                                         continue;
1140                                 }
1141                         }
1142                         if (commands[i].help == NULL) {
1143                                 continue;
1144                         }
1145                         empathy_chat_view_append_event (chat->view,
1146                                 _(commands[i].help));
1147                 }
1148                 return;
1149         }
1150
1151         for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1152                 if (g_ascii_strcasecmp (strv[1], commands[i].prefix) == 0) {
1153                         if (commands[i].is_supported != NULL) {
1154                                 if (!commands[i].is_supported (chat)) {
1155                                         break;
1156                                 }
1157                         }
1158                         if (commands[i].help == NULL) {
1159                                 break;
1160                         }
1161                         chat_command_show_help (chat, &commands[i]);
1162                         return;
1163                 }
1164         }
1165
1166         empathy_chat_view_append_event (chat->view,
1167                 _("Unknown command"));
1168 }
1169
1170 static GStrv
1171 chat_command_parse (const gchar *text, guint max_parts)
1172 {
1173         GPtrArray *array;
1174         gchar *item;
1175
1176         DEBUG ("Parse command, parts=%d text=\"%s\":", max_parts, text);
1177
1178         array = g_ptr_array_sized_new (max_parts + 1);
1179         while (max_parts > 1) {
1180                 const gchar *end;
1181
1182                 /* Skip white spaces */
1183                 while (g_ascii_isspace (*text)) {
1184                         text++;
1185                 }
1186
1187                 /* Search the end of this part, until first space. */
1188                 for (end = text; *end != '\0' && !g_ascii_isspace (*end); end++)
1189                         /* Do nothing */;
1190                 if (*end == '\0') {
1191                         break;
1192                 }
1193
1194                 item = g_strndup (text, end - text);
1195                 g_ptr_array_add (array, item);
1196                 DEBUG ("\tITEM: \"%s\"", item);
1197
1198                 text = end;
1199                 max_parts--;
1200         }
1201
1202         /* Append last part if not empty */
1203         item = g_strstrip (g_strdup (text));
1204         if (!EMP_STR_EMPTY (item)) {
1205                 g_ptr_array_add (array, item);
1206                 DEBUG ("\tITEM: \"%s\"", item);
1207         } else {
1208                 g_free (item);
1209         }
1210
1211         /* Make the array NULL-terminated */
1212         g_ptr_array_add (array, NULL);
1213
1214         return (GStrv) g_ptr_array_free (array, FALSE);
1215 }
1216
1217 static gboolean
1218 has_prefix_case (const gchar *s,
1219                   const gchar *prefix)
1220 {
1221         return g_ascii_strncasecmp (s, prefix, strlen (prefix)) == 0;
1222 }
1223
1224 static void
1225 chat_send (EmpathyChat  *chat,
1226            const gchar *msg)
1227 {
1228         EmpathyChatPriv *priv;
1229         TpMessage  *message;
1230         guint            i;
1231
1232         if (EMP_STR_EMPTY (msg)) {
1233                 return;
1234         }
1235
1236         priv = GET_PRIV (chat);
1237
1238         chat_input_history_add (chat, msg, FALSE);
1239
1240         if (msg[0] == '/') {
1241                 gboolean second_slash = FALSE;
1242                 const gchar *iter = msg + 1;
1243
1244                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1245                         GStrv strv;
1246                         guint strv_len;
1247                         gchar c;
1248
1249                         if (!has_prefix_case (msg + 1, commands[i].prefix)) {
1250                                 continue;
1251                         }
1252                         c = *(msg + 1 + strlen (commands[i].prefix));
1253                         if (c != '\0' && !g_ascii_isspace (c)) {
1254                                 continue;
1255                         }
1256                         if (commands[i].is_supported != NULL) {
1257                                 if (!commands[i].is_supported (chat)) {
1258                                         continue;
1259                                 }
1260                         }
1261
1262                         /* We can't use g_strsplit here because it does
1263                          * not deal correctly if we have more than one space
1264                          * between args */
1265                         strv = chat_command_parse (msg + 1, commands[i].max_parts);
1266
1267                         strv_len = g_strv_length (strv);
1268                         if (strv_len < commands[i].min_parts ||
1269                             strv_len > commands[i].max_parts) {
1270                                 chat_command_show_help (chat, &commands[i]);
1271                                 g_strfreev (strv);
1272                                 return;
1273                         }
1274
1275                         commands[i].func (chat, strv);
1276                         g_strfreev (strv);
1277                         return;
1278                 }
1279
1280                 /* Also allow messages with two slashes before the
1281                  * first space, so it is possible to send a /unix/path.
1282                  * This heuristic is kind of crap. */
1283                 while (*iter != '\0' && !g_ascii_isspace (*iter)) {
1284                         if (*iter == '/') {
1285                                 second_slash = TRUE;
1286                                 break;
1287                         }
1288                         iter++;
1289                 }
1290
1291                 if (!second_slash) {
1292                         empathy_chat_view_append_event (chat->view,
1293                                 _("Unknown command; see /help for the available"
1294                                   " commands"));
1295                         return;
1296                 }
1297         }
1298
1299         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1300                 msg);
1301         empathy_tp_chat_send (priv->tp_chat, message);
1302         g_object_unref (message);
1303 }
1304
1305 static void
1306 chat_input_text_view_send (EmpathyChat *chat)
1307 {
1308         GtkTextBuffer  *buffer;
1309         GtkTextIter     start, end;
1310         gchar          *msg;
1311
1312         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1313
1314         gtk_text_buffer_get_bounds (buffer, &start, &end);
1315         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1316
1317         /* clear the input field */
1318         gtk_text_buffer_set_text (buffer, "", -1);
1319         /* delete input history modifications */
1320         chat_input_history_revert (chat);
1321
1322         chat_send (chat, msg);
1323         g_free (msg);
1324 }
1325
1326 static void
1327 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
1328                        EmpathyContact     *contact,
1329                        TpChannelChatState  state,
1330                        EmpathyChat        *chat)
1331 {
1332         EmpathyChatPriv *priv;
1333         GList          *l;
1334         gboolean        was_composing;
1335
1336         priv = GET_PRIV (chat);
1337
1338         if (empathy_contact_is_user (contact)) {
1339                 /* We don't care about our own chat state */
1340                 return;
1341         }
1342
1343         was_composing = (priv->compositors != NULL);
1344
1345         /* Find the contact in the list. After that l is the list elem or NULL */
1346         for (l = priv->compositors; l; l = l->next) {
1347                 if (contact == l->data) {
1348                         break;
1349                 }
1350         }
1351
1352         switch (state) {
1353         case TP_CHANNEL_CHAT_STATE_GONE:
1354         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1355         case TP_CHANNEL_CHAT_STATE_PAUSED:
1356         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1357                 /* Contact is not composing */
1358                 if (l) {
1359                         priv->compositors = g_list_remove_link (priv->compositors, l);
1360                         g_object_unref (l->data);
1361                         g_list_free1 (l);
1362                 }
1363                 break;
1364         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1365                 /* Contact is composing */
1366                 if (!l) {
1367                         priv->compositors = g_list_prepend (priv->compositors,
1368                                                             g_object_ref (contact));
1369                 }
1370                 break;
1371         default:
1372                 g_assert_not_reached ();
1373         }
1374
1375         DEBUG ("Was composing: %s now composing: %s",
1376                 was_composing ? "yes" : "no",
1377                 priv->compositors ? "yes" : "no");
1378
1379         if ((was_composing && !priv->compositors) ||
1380             (!was_composing && priv->compositors)) {
1381                 /* Composing state changed */
1382                 g_signal_emit (chat, signals[COMPOSING], 0,
1383                                priv->compositors != NULL);
1384         }
1385 }
1386
1387 static void
1388 chat_message_received (EmpathyChat *chat,
1389         EmpathyMessage *message,
1390         gboolean pending)
1391 {
1392         EmpathyChatPriv *priv = GET_PRIV (chat);
1393         EmpathyContact  *sender;
1394
1395         sender = empathy_message_get_sender (message);
1396
1397         if (empathy_message_is_edit (message)) {
1398                 DEBUG ("Editing message '%s' to '%s'",
1399                         empathy_message_get_supersedes (message),
1400                         empathy_message_get_body (message));
1401
1402                 empathy_chat_view_edit_message (chat->view, message);
1403         } else {
1404                 DEBUG ("Appending new message '%s' from %s (%d)",
1405                         empathy_message_get_token (message),
1406                         empathy_contact_get_alias (sender),
1407                         empathy_contact_get_handle (sender));
1408
1409                 empathy_chat_view_append_message (chat->view, message);
1410
1411                 if (empathy_message_is_incoming (message)) {
1412                         priv->unread_messages++;
1413                         g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1414                 }
1415
1416                 g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, pending);
1417         }
1418
1419         /* We received a message so the contact is no longer
1420          * composing */
1421         chat_state_changed_cb (priv->tp_chat, sender,
1422                                TP_CHANNEL_CHAT_STATE_ACTIVE,
1423                                chat);
1424 }
1425
1426 static void
1427 chat_message_received_cb (EmpathyTpChat  *tp_chat,
1428                           EmpathyMessage *message,
1429                           EmpathyChat    *chat)
1430 {
1431         chat_message_received (chat, message, FALSE);
1432 }
1433
1434 static void
1435 chat_message_acknowledged_cb (EmpathyTpChat  *tp_chat,
1436                               EmpathyMessage *message,
1437                               EmpathyChat    *chat)
1438 {
1439         EmpathyChatPriv *priv = GET_PRIV (chat);
1440
1441         empathy_chat_view_message_acknowledged (chat->view,
1442             message);
1443
1444         if (!empathy_message_is_edit (message)) {
1445                 priv->unread_messages--;
1446                 g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1447         }
1448 }
1449
1450 static void
1451 append_balance_error (EmpathyChat *chat,
1452                       const gchar *message_body)
1453 {
1454         EmpathyChatPriv *priv = GET_PRIV (chat);
1455         TpConnection *conn = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
1456         const gchar *uri = tp_connection_get_balance_uri (conn);
1457         const gchar *error = _("insufficient balance to send message");
1458         gchar *str, *str_markup = NULL;
1459
1460         if (message_body != NULL) {
1461                 str = g_strdup_printf (_("Error sending message '%s': %s"), message_body, error);
1462         } else {
1463                 str = g_strdup_printf (_("Error sending message: %s"), error);
1464         }
1465
1466         if (!tp_str_empty (uri)) {
1467                 /* translators: error used when user doesn't have enough credit on his
1468                  * account to send the message. */
1469                 gchar *markup_error = g_strdup_printf (_("insufficient balance to send message."
1470                                                          " <a href='%s'>Top up</a>."), uri);
1471
1472                 if (message_body != NULL) {
1473                         gchar *escaped_body = g_markup_escape_text (message_body, -1);
1474
1475                         str_markup = g_strdup_printf (_("Error sending message '%s': %s"),
1476                                 escaped_body, markup_error);
1477
1478                         g_free (escaped_body);
1479                 } else {
1480                         str_markup = g_strdup_printf (_("Error sending message: %s"), markup_error);
1481                 }
1482
1483                 g_free (markup_error);
1484         }
1485
1486         if (str_markup != NULL)
1487                 empathy_chat_view_append_event_markup (chat->view, str_markup, str);
1488         else
1489                 empathy_chat_view_append_event (chat->view, str);
1490
1491         g_free (str);
1492         g_free (str_markup);
1493 }
1494
1495 static void
1496 chat_send_error_cb (EmpathyTpChat          *tp_chat,
1497                     const gchar            *message_body,
1498                     TpChannelTextSendError  error_code,
1499                     const gchar            *dbus_error,
1500                     EmpathyChat            *chat)
1501 {
1502         const gchar *error = NULL;
1503         gchar       *str;
1504
1505         if (!tp_strdiff (dbus_error, TP_ERROR_STR_INSUFFICIENT_BALANCE)) {
1506                 append_balance_error (chat, message_body);
1507                 return;
1508         } else if (!tp_strdiff (dbus_error, TP_ERROR_STR_NOT_CAPABLE)) {
1509                 error = _("not capable");
1510         }
1511
1512         if (error == NULL) {
1513                 /* if we didn't find a dbus-error, try the old error */
1514                 switch (error_code) {
1515                 case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
1516                         error = _("offline");
1517                         break;
1518                 case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
1519                         error = _("invalid contact");
1520                         break;
1521                 case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
1522                         error = _("permission denied");
1523                         break;
1524                 case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
1525                         error = _("too long message");
1526                         break;
1527                 case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
1528                         error = _("not implemented");
1529                         break;
1530                 case TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN:
1531                 default:
1532                         error = _("unknown");
1533                         break;
1534                 }
1535         }
1536
1537         if (message_body != NULL) {
1538                         str = g_strdup_printf (_("Error sending message '%s': %s"),
1539                                 message_body, error);
1540         }
1541         else {
1542                         str = g_strdup_printf (_("Error sending message: %s"), error);
1543         }
1544
1545         empathy_chat_view_append_event (chat->view, str);
1546         g_free (str);
1547 }
1548
1549 static void
1550 chat_topic_label_size_allocate_cb (GtkLabel *label,
1551                                    GtkAllocation *allocation,
1552                                    EmpathyChat *chat)
1553 {
1554         EmpathyChatPriv *priv = GET_PRIV (chat);
1555
1556         if (!gtk_label_get_line_wrap (label)) {
1557                 if (pango_layout_is_ellipsized (gtk_label_get_layout (label)))
1558                         gtk_widget_show (priv->expander_topic);
1559                 else
1560                         gtk_widget_hide (priv->expander_topic);
1561
1562                 return;
1563         }
1564 }
1565
1566 static void
1567 chat_topic_expander_activate_cb (GtkExpander *expander,
1568                                  GParamSpec *param_spec,
1569                                  EmpathyChat *chat)
1570 {
1571         EmpathyChatPriv *priv = GET_PRIV (chat);
1572
1573         if (gtk_expander_get_expanded (expander)) {
1574                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_NONE);
1575                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), TRUE);
1576         } else {
1577                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_END);
1578                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), FALSE);
1579         }
1580 }
1581
1582 static void
1583 chat_subject_changed_cb (EmpathyChat *chat)
1584 {
1585         EmpathyChatPriv *priv = GET_PRIV (chat);
1586
1587                 g_free (priv->subject);
1588                 priv->subject = g_strdup (empathy_tp_chat_get_subject (priv->tp_chat));
1589                 g_object_notify (G_OBJECT (chat), "subject");
1590
1591                 if (EMP_STR_EMPTY (priv->subject)) {
1592                         gtk_widget_hide (priv->hbox_topic);
1593                 } else {
1594                         gchar *markup_topic;
1595                         gchar *markup_text;
1596
1597                         markup_topic = empathy_add_link_markup (priv->subject);
1598                         markup_text = g_strdup_printf ("<span weight=\"bold\">%s</span> %s",
1599                                 _("Topic:"), markup_topic);
1600
1601                         gtk_label_set_markup (GTK_LABEL (priv->label_topic), markup_text);
1602                         g_free (markup_text);
1603                         g_free (markup_topic);
1604
1605                         gtk_widget_show (priv->hbox_topic);
1606                 }
1607                 if (priv->block_events_timeout_id == 0) {
1608                         gchar *str;
1609
1610                         if (!EMP_STR_EMPTY (priv->subject)) {
1611                                 str = g_strdup_printf (_("Topic set to: %s"), priv->subject);
1612                         } else {
1613                                 str = g_strdup (_("No topic defined"));
1614                         }
1615                         empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
1616                         g_free (str);
1617                 }
1618 }
1619
1620 static void
1621 chat_title_changed_cb (EmpathyChat *chat)
1622 {
1623         EmpathyChatPriv *priv = GET_PRIV (chat);
1624
1625                 g_free (priv->name);
1626                 priv->name = g_strdup (empathy_tp_chat_get_title (priv->tp_chat));
1627                 g_object_notify (G_OBJECT (chat), "name");
1628 }
1629
1630 static gboolean
1631 chat_input_text_get_word_from_iter (GtkTextIter   *iter,
1632                                     GtkTextIter   *start,
1633                                     GtkTextIter   *end)
1634 {
1635         GtkTextIter word_start = *iter;
1636         GtkTextIter word_end = *iter;
1637         GtkTextIter tmp;
1638
1639         if (gtk_text_iter_inside_word (&word_end) &&
1640                         !gtk_text_iter_ends_word (&word_end)) {
1641                 gtk_text_iter_forward_word_end (&word_end);
1642         }
1643
1644         tmp = word_end;
1645
1646         if (gtk_text_iter_get_char (&tmp) == '\'') {
1647                 gtk_text_iter_forward_char (&tmp);
1648
1649                 if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1650                         gtk_text_iter_forward_word_end (&word_end);
1651                 }
1652         }
1653
1654
1655         if (gtk_text_iter_inside_word (&word_start) ||
1656                         gtk_text_iter_ends_word (&word_start)) {
1657                 if (!gtk_text_iter_starts_word (&word_start) ||
1658                                 gtk_text_iter_equal (&word_start, &word_end)) {
1659                         gtk_text_iter_backward_word_start (&word_start);
1660                 }
1661
1662                 tmp = word_start;
1663                 gtk_text_iter_backward_char (&tmp);
1664
1665                 if (gtk_text_iter_get_char (&tmp) == '\'') {
1666                         gtk_text_iter_backward_char (&tmp);
1667
1668                         if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1669                                 gtk_text_iter_backward_word_start (&word_start);
1670                         }
1671                 }
1672         }
1673
1674         *start = word_start;
1675         *end = word_end;
1676         return TRUE;
1677 }
1678
1679 static void
1680 chat_input_text_buffer_insert_text_cb (GtkTextBuffer *buffer,
1681                                        GtkTextIter   *location,
1682                                        gchar         *text,
1683                                        gint           len,
1684                                        EmpathyChat   *chat)
1685 {
1686         GtkTextIter iter, pos;
1687
1688         /* Remove all misspelled tags in the inserted text.
1689          * This happens when text is inserted within a misspelled word. */
1690         gtk_text_buffer_get_iter_at_offset (buffer, &iter,
1691                                             gtk_text_iter_get_offset (location) - len);
1692         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1693                                             &iter, location);
1694
1695         gtk_text_buffer_get_iter_at_mark (buffer, &pos, gtk_text_buffer_get_insert (buffer));
1696
1697         do {
1698                 GtkTextIter start, end;
1699                 gchar *str;
1700
1701                 if (!chat_input_text_get_word_from_iter (&iter, &start, &end))
1702                         continue;
1703
1704                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1705
1706                 if (gtk_text_iter_in_range (&pos, &start, &end) ||
1707                                 gtk_text_iter_equal (&pos, &end) ||
1708                                 empathy_spell_check (str)) {
1709                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
1710                 } else {
1711                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
1712                 }
1713
1714                 g_free (str);
1715
1716         } while (gtk_text_iter_forward_word_end (&iter) &&
1717                  gtk_text_iter_compare (&iter, location) <= 0);
1718 }
1719
1720 static void
1721 chat_input_text_buffer_delete_range_cb (GtkTextBuffer *buffer,
1722                                         GtkTextIter   *start,
1723                                         GtkTextIter   *end,
1724                                         EmpathyChat   *chat)
1725 {
1726         GtkTextIter word_start, word_end;
1727
1728         if (chat_input_text_get_word_from_iter (start, &word_start, &word_end)) {
1729                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1730                                                     &word_start, &word_end);
1731         }
1732 }
1733
1734 static void
1735 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
1736                                    EmpathyChat    *chat)
1737 {
1738         if (gtk_text_buffer_get_char_count (buffer) == 0) {
1739                 chat_composing_stop (chat);
1740         } else {
1741                 chat_composing_start (chat);
1742         }
1743 }
1744
1745 static void
1746 chat_input_text_buffer_notify_cursor_position_cb (GtkTextBuffer *buffer,
1747                                                   GParamSpec    *pspec,
1748                                                   EmpathyChat    *chat)
1749 {
1750         GtkTextIter pos;
1751         GtkTextIter prev_pos;
1752         GtkTextIter word_start;
1753         GtkTextIter word_end;
1754         GtkTextMark *mark;
1755         gchar *str;
1756
1757         mark = gtk_text_buffer_get_mark (buffer, "previous-cursor-position");
1758
1759         gtk_text_buffer_get_iter_at_mark (buffer, &pos,
1760                                           gtk_text_buffer_get_insert (buffer));
1761         gtk_text_buffer_get_iter_at_mark (buffer, &prev_pos, mark);
1762
1763         if (!chat_input_text_get_word_from_iter (&prev_pos, &word_start, &word_end))
1764                 goto out;
1765
1766         if (!gtk_text_iter_in_range (&pos, &word_start, &word_end) &&
1767                         !gtk_text_iter_equal (&pos, &word_end)) {
1768                 str = gtk_text_buffer_get_text (buffer,
1769                                         &word_start, &word_end, FALSE);
1770
1771                 if (!empathy_spell_check (str)) {
1772                         gtk_text_buffer_apply_tag_by_name (buffer,
1773                                         "misspelled", &word_start, &word_end);
1774                 } else {
1775                         gtk_text_buffer_remove_tag_by_name (buffer,
1776                                         "misspelled", &word_start, &word_end);
1777                 }
1778
1779                 g_free (str);
1780         }
1781
1782 out:
1783         gtk_text_buffer_move_mark (buffer, mark, &pos);
1784 }
1785
1786 static gboolean
1787 empathy_isspace_cb (gunichar c,
1788                  gpointer data)
1789 {
1790         return g_unichar_isspace (c);
1791 }
1792
1793 static gboolean
1794 chat_input_key_press_event_cb (GtkWidget   *widget,
1795                                GdkEventKey *event,
1796                                EmpathyChat *chat)
1797 {
1798         EmpathyChatPriv *priv;
1799         GtkAdjustment  *adj;
1800         gdouble         val;
1801         GtkWidget      *text_view_sw;
1802
1803         priv = GET_PRIV (chat);
1804
1805         priv->most_recent_event_type = event->type;
1806
1807         /* Catch ctrl+up/down so we can traverse messages we sent */
1808         if ((event->state & GDK_CONTROL_MASK) &&
1809             (event->keyval == GDK_KEY_Up ||
1810              event->keyval == GDK_KEY_Down)) {
1811                 GtkTextBuffer *buffer;
1812                 const gchar   *str;
1813
1814                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1815                 chat_input_history_update (chat, buffer);
1816
1817                 if (event->keyval == GDK_KEY_Up) {
1818                         str = chat_input_history_get_next (chat);
1819                 } else {
1820                         str = chat_input_history_get_prev (chat);
1821                 }
1822
1823                 g_signal_handlers_block_by_func (buffer,
1824                                                  chat_input_text_buffer_changed_cb,
1825                                                  chat);
1826                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
1827                 g_signal_handlers_unblock_by_func (buffer,
1828                                                    chat_input_text_buffer_changed_cb,
1829                                                    chat);
1830
1831                 return TRUE;
1832         }
1833
1834         /* Catch enter but not ctrl/shift-enter */
1835         if (IS_ENTER (event->keyval) &&
1836             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1837                 GtkTextView *view;
1838
1839                 /* This is to make sure that kinput2 gets the enter. And if
1840                  * it's handled there we shouldn't send on it. This is because
1841                  * kinput2 uses Enter to commit letters. See:
1842                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
1843                  */
1844
1845                 view = GTK_TEXT_VIEW (chat->input_text_view);
1846                 if (gtk_text_view_im_context_filter_keypress (view, event)) {
1847                         gtk_text_view_reset_im_context (view);
1848                         return TRUE;
1849                 }
1850
1851                 chat_input_text_view_send (chat);
1852                 return TRUE;
1853         }
1854
1855         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
1856
1857         if (IS_ENTER (event->keyval) &&
1858             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1859                 /* Newline for shift/control-enter. */
1860                 return FALSE;
1861         }
1862         if (!(event->state & GDK_CONTROL_MASK) &&
1863             event->keyval == GDK_KEY_Page_Up) {
1864                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1865                 gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) - gtk_adjustment_get_page_size (adj));
1866                 return TRUE;
1867         }
1868         if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
1869             event->keyval == GDK_KEY_Page_Down) {
1870                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1871                 val = MIN (gtk_adjustment_get_value (adj) + gtk_adjustment_get_page_size (adj),
1872                            gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj));
1873                 gtk_adjustment_set_value (adj, val);
1874                 return TRUE;
1875         }
1876         if (event->keyval == GDK_KEY_Escape) {
1877                 empathy_search_bar_hide (EMPATHY_SEARCH_BAR (priv->search_bar));
1878         }
1879         if (!(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) &&
1880             event->keyval == GDK_KEY_Tab) {
1881                 GtkTextBuffer *buffer;
1882                 GtkTextIter    start, current;
1883                 gchar         *nick, *completed;
1884                 GList         *list, *completed_list;
1885                 gboolean       is_start_of_buffer;
1886
1887                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (EMPATHY_CHAT (chat)->input_text_view));
1888                 gtk_text_buffer_get_iter_at_mark (buffer, &current, gtk_text_buffer_get_insert (buffer));
1889
1890                 /* Get the start of the nick to complete. */
1891                 gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
1892                 if (gtk_text_iter_backward_find_char (&start, &empathy_isspace_cb, NULL, NULL)) {
1893                         gtk_text_iter_set_offset (&start, gtk_text_iter_get_offset (&start) + 1);
1894                 }
1895                 is_start_of_buffer = gtk_text_iter_is_start (&start);
1896
1897                 list = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (priv->tp_chat));
1898                 g_completion_add_items (priv->completion, list);
1899
1900                 nick = gtk_text_buffer_get_text (buffer, &start, &current, FALSE);
1901                 completed_list = g_completion_complete (priv->completion,
1902                                                         nick,
1903                                                         &completed);
1904
1905                 g_free (nick);
1906
1907                 if (completed) {
1908                         guint        len;
1909                         const gchar *text;
1910                         GString     *message = NULL;
1911                         GList       *l;
1912
1913                         gtk_text_buffer_delete (buffer, &start, &current);
1914
1915                         len = g_list_length (completed_list);
1916
1917                         if (len == 1) {
1918                                 /* If we only have one hit, use that text
1919                                  * instead of the text in completed since the
1920                                  * completed text will use the typed string
1921                                  * which might be cased all wrong.
1922                                  * Fixes #120876
1923                                  * */
1924                                 text = empathy_contact_get_alias (completed_list->data);
1925                         } else {
1926                                 text = completed;
1927
1928                                 /* Print all hits to the scrollback view, so the
1929                                  * user knows what possibilities he has.
1930                                  * Fixes #599779
1931                                  * */
1932                                  message = g_string_new ("");
1933                                  for (l = completed_list; l != NULL; l = l->next) {
1934                                         g_string_append (message, empathy_contact_get_alias (l->data));
1935                                         g_string_append (message, " - ");
1936                                  }
1937                                  empathy_chat_view_append_event (chat->view, message->str);
1938                                  g_string_free (message, TRUE);
1939                         }
1940
1941                         gtk_text_buffer_insert_at_cursor (buffer, text, strlen (text));
1942
1943                         if (len == 1 && is_start_of_buffer) {
1944                             gchar *complete_char;
1945
1946                             complete_char = g_settings_get_string (
1947                                     priv->gsettings_chat,
1948                                     EMPATHY_PREFS_CHAT_NICK_COMPLETION_CHAR);
1949
1950                             if (complete_char != NULL) {
1951                                 gtk_text_buffer_insert_at_cursor (buffer,
1952                                                                   complete_char,
1953                                                                   strlen (complete_char));
1954                                 gtk_text_buffer_insert_at_cursor (buffer, " ", 1);
1955                                 g_free (complete_char);
1956                             }
1957                         }
1958
1959                         g_free (completed);
1960                 }
1961
1962                 g_completion_clear_items (priv->completion);
1963
1964                 g_list_foreach (list, (GFunc) g_object_unref, NULL);
1965                 g_list_free (list);
1966
1967                 return TRUE;
1968         }
1969
1970         return FALSE;
1971 }
1972
1973 static gboolean
1974 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
1975                                   GdkEvent   *event,
1976                                   EmpathyChat *chat)
1977 {
1978         gtk_widget_grab_focus (chat->input_text_view);
1979
1980         return TRUE;
1981 }
1982
1983 static void
1984 chat_input_realize_cb (GtkWidget   *widget,
1985                        EmpathyChat *chat)
1986 {
1987         DEBUG ("Setting focus to the input text view");
1988         if (gtk_widget_is_sensitive (widget)) {
1989                 gtk_widget_grab_focus (widget);
1990         }
1991 }
1992
1993 static void
1994 chat_input_has_focus_notify_cb (GtkWidget   *widget,
1995                                 GParamSpec  *pspec,
1996                                 EmpathyChat *chat)
1997 {
1998         empathy_chat_view_focus_toggled (chat->view, gtk_widget_has_focus (widget));
1999 }
2000
2001 static void
2002 chat_insert_smiley_activate_cb (EmpathySmileyManager *manager,
2003                                 EmpathySmiley        *smiley,
2004                                 gpointer              user_data)
2005 {
2006         EmpathyChat   *chat = EMPATHY_CHAT (user_data);
2007         GtkTextBuffer *buffer;
2008         GtkTextIter    iter;
2009
2010         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2011
2012         gtk_text_buffer_get_end_iter (buffer, &iter);
2013         gtk_text_buffer_insert (buffer, &iter, smiley->str, -1);
2014
2015         gtk_text_buffer_get_end_iter (buffer, &iter);
2016         gtk_text_buffer_insert (buffer, &iter, " ", -1);
2017 }
2018
2019 typedef struct {
2020         EmpathyChat  *chat;
2021         gchar       *word;
2022
2023         GtkTextIter  start;
2024         GtkTextIter  end;
2025 } EmpathyChatSpell;
2026
2027 static EmpathyChatSpell *
2028 chat_spell_new (EmpathyChat  *chat,
2029                 const gchar *word,
2030                 GtkTextIter  start,
2031                 GtkTextIter  end)
2032 {
2033         EmpathyChatSpell *chat_spell;
2034
2035         chat_spell = g_slice_new0 (EmpathyChatSpell);
2036
2037         chat_spell->chat = g_object_ref (chat);
2038         chat_spell->word = g_strdup (word);
2039         chat_spell->start = start;
2040         chat_spell->end = end;
2041
2042         return chat_spell;
2043 }
2044
2045 static void
2046 chat_spell_free (EmpathyChatSpell *chat_spell)
2047 {
2048         g_object_unref (chat_spell->chat);
2049         g_free (chat_spell->word);
2050         g_slice_free (EmpathyChatSpell, chat_spell);
2051 }
2052
2053 static void
2054 chat_spelling_menu_activate_cb (GtkMenuItem     *menu_item,
2055                                                 EmpathyChatSpell *chat_spell)
2056 {
2057     empathy_chat_correct_word (chat_spell->chat,
2058                                &(chat_spell->start),
2059                                &(chat_spell->end),
2060                                gtk_menu_item_get_label (menu_item));
2061 }
2062
2063
2064 static GtkWidget *
2065 chat_spelling_build_suggestions_menu (const gchar *code,
2066                                       EmpathyChatSpell *chat_spell)
2067 {
2068         GList     *suggestions, *l;
2069         GtkWidget *menu, *menu_item;
2070
2071         suggestions = empathy_spell_get_suggestions (code, chat_spell->word);
2072         if (suggestions == NULL)
2073                 return NULL;
2074
2075         menu = gtk_menu_new ();
2076         for (l = suggestions; l; l = l->next) {
2077                 menu_item = gtk_menu_item_new_with_label (l->data);
2078                 g_signal_connect (G_OBJECT (menu_item), "activate",
2079                                   G_CALLBACK (chat_spelling_menu_activate_cb),
2080                                   chat_spell);
2081                 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
2082         }
2083         empathy_spell_free_suggestions (suggestions);
2084
2085         gtk_widget_show_all (menu);
2086
2087         return menu;
2088 }
2089
2090 static GtkWidget *
2091 chat_spelling_build_menu (EmpathyChatSpell *chat_spell)
2092 {
2093         GtkWidget *menu, *submenu, *item;
2094         GList     *codes, *l;
2095
2096         codes = empathy_spell_get_enabled_language_codes ();
2097         g_assert (codes != NULL);
2098
2099         if (g_list_length (codes) > 1) {
2100                 menu = gtk_menu_new ();
2101
2102                 for (l = codes; l; l = l->next) {
2103                         const gchar *code, *name;
2104
2105                         code = l->data;
2106                         name = empathy_spell_get_language_name (code);
2107                         if (!name)
2108                                 continue;
2109
2110                         item = gtk_image_menu_item_new_with_label (name);
2111
2112                         submenu = chat_spelling_build_suggestions_menu (
2113                                         code, chat_spell);
2114                         if (submenu == NULL)
2115                                 gtk_widget_set_sensitive (item, FALSE);
2116                         else
2117                                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item),
2118                                                            submenu);
2119                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2120                 }
2121         } else {
2122                 menu = chat_spelling_build_suggestions_menu (codes->data,
2123                                                              chat_spell);
2124                 if (menu == NULL) {
2125                         menu = gtk_menu_new ();
2126                         item = gtk_menu_item_new_with_label (_("(No Suggestions)"));
2127                         gtk_widget_set_sensitive (item, FALSE);
2128                         gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
2129                 }
2130         }
2131         g_list_free (codes);
2132
2133         gtk_widget_show_all (menu);
2134
2135         return menu;
2136 }
2137
2138 typedef struct {
2139         EmpathyChat  *chat;
2140         gchar        *word;
2141         gchar        *code;
2142 } EmpathyChatWord;
2143
2144 static EmpathyChatWord *
2145 chat_word_new (EmpathyChat  *chat,
2146                 const gchar  *word,
2147                 const gchar  *code)
2148 {
2149         EmpathyChatWord *chat_word;
2150
2151         chat_word = g_slice_new0 (EmpathyChatWord);
2152
2153         chat_word->chat = g_object_ref (chat);
2154         chat_word->word = g_strdup (word);
2155         chat_word->code = g_strdup (code);
2156
2157         return chat_word;
2158 }
2159
2160 static void
2161 chat_word_free (EmpathyChatWord *chat_word)
2162 {
2163         g_object_unref (chat_word->chat);
2164         g_free (chat_word->word);
2165         g_free (chat_word->code);
2166         g_slice_free (EmpathyChatWord, chat_word);
2167 }
2168
2169 static void
2170 chat_add_to_dictionary_activate_cb (GtkMenuItem     *menu_item,
2171                                     EmpathyChatWord *chat_word)
2172 {
2173         EmpathyChatPriv *priv = GET_PRIV (chat_word->chat);
2174
2175         empathy_spell_add_to_dictionary (chat_word->code,
2176                                          chat_word->word);
2177         priv->update_misspelled_words_id =
2178                 g_idle_add (update_misspelled_words, chat_word->chat);
2179 }
2180
2181 static GtkWidget *
2182 chat_spelling_build_add_to_dictionary_item (EmpathyChatSpell *chat_spell)
2183 {
2184         GtkWidget       *menu, *item, *lang_item, *image;
2185         GList           *codes, *l;
2186         gchar           *label;
2187         const gchar     *code, *name;
2188         EmpathyChatWord *chat_word;
2189
2190         codes = empathy_spell_get_enabled_language_codes ();
2191         g_assert (codes != NULL);
2192         if (g_list_length (codes) > 1) {
2193                 /* translators: %s is the selected word */
2194                 label = g_strdup_printf (_("Add '%s' to Dictionary"),
2195                                         chat_spell->word);
2196                 item = gtk_image_menu_item_new_with_mnemonic (label);
2197                 g_free (label);
2198                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2199                                                       GTK_ICON_SIZE_MENU);
2200                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
2201                                                image);
2202
2203                 menu = gtk_menu_new ();
2204
2205                 for (l = codes; l; l = l->next) {
2206                         code = l->data;
2207                         name = empathy_spell_get_language_name (code);
2208                         if (name == NULL)
2209                                 continue;
2210
2211                         lang_item = gtk_image_menu_item_new_with_label (name);
2212
2213                         chat_word= chat_word_new (chat_spell->chat,
2214                                                   chat_spell->word, code);
2215                         g_object_set_data_full (G_OBJECT (lang_item),
2216                                 "chat-word", chat_word,
2217                                 (GDestroyNotify) chat_word_free);
2218
2219                         g_signal_connect (G_OBJECT (lang_item), "activate",
2220                                 G_CALLBACK (chat_add_to_dictionary_activate_cb),
2221                                 chat_word);
2222                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), lang_item);
2223                 }
2224                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
2225         } else {
2226                 code = codes->data;
2227                 name = empathy_spell_get_language_name (code);
2228                 g_assert (name != NULL);
2229                 /* translators: first %s is the selected word,
2230                  * second %s is the language name of the target dictionary */
2231                 label = g_strdup_printf (_("Add '%s' to %s Dictionary"),
2232                                         chat_spell->word, name);
2233                 item = gtk_image_menu_item_new_with_mnemonic (label);
2234                 g_free (label);
2235                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2236                                                       GTK_ICON_SIZE_MENU);
2237                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2238
2239                 chat_word = chat_word_new (chat_spell->chat, chat_spell->word,
2240                                            code);
2241                 g_object_set_data_full (G_OBJECT (item), "chat-word", chat_word,
2242                                         (GDestroyNotify) chat_word_free);
2243
2244                 g_signal_connect (G_OBJECT (item), "activate",
2245                                   G_CALLBACK (chat_add_to_dictionary_activate_cb),
2246                                   chat_word);
2247         }
2248         g_list_free (codes);
2249
2250         gtk_widget_show_all (item);
2251
2252         return item;
2253 }
2254
2255 static void
2256 chat_text_send_cb (GtkMenuItem *menuitem,
2257                    EmpathyChat *chat)
2258 {
2259         chat_input_text_view_send (chat);
2260 }
2261
2262 static gboolean
2263 chat_input_button_press_event_cb (GtkTextView    *view,
2264                                   GdkEventButton *event,
2265                                   EmpathyChat    *chat)
2266 {
2267         EmpathyChatPriv *priv = GET_PRIV (chat);
2268
2269         priv->most_recent_event_type = event->type;
2270
2271         return FALSE;
2272 }
2273
2274 static void
2275 chat_input_populate_popup_cb (GtkTextView *view,
2276                               GtkMenu     *menu,
2277                               EmpathyChat *chat)
2278 {
2279         EmpathyChatPriv      *priv = GET_PRIV (chat);
2280         GtkTextBuffer        *buffer;
2281         GtkTextTagTable      *table;
2282         GtkTextTag           *tag;
2283         gint                  x, y;
2284         GtkTextIter           iter, start, end;
2285         GtkWidget            *item;
2286         gchar                *str = NULL;
2287         EmpathyChatSpell     *chat_spell;
2288         GtkWidget            *spell_menu;
2289         GtkWidget            *spell_item;
2290         EmpathySmileyManager *smiley_manager;
2291         GtkWidget            *smiley_menu;
2292         GtkWidget            *image;
2293
2294         buffer = gtk_text_view_get_buffer (view);
2295
2296         /* Add the emoticon menu. */
2297         item = gtk_separator_menu_item_new ();
2298         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2299         gtk_widget_show (item);
2300
2301         item = gtk_image_menu_item_new_with_mnemonic (_("Insert Smiley"));
2302         image = gtk_image_new_from_icon_name ("face-smile",
2303                                               GTK_ICON_SIZE_MENU);
2304         gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2305         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2306         gtk_widget_show (item);
2307
2308         smiley_manager = empathy_smiley_manager_dup_singleton ();
2309         smiley_menu = empathy_smiley_menu_new (smiley_manager,
2310                                                chat_insert_smiley_activate_cb,
2311                                                chat);
2312         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
2313         g_object_unref (smiley_manager);
2314
2315         /* Add the Send menu item. */
2316         gtk_text_buffer_get_bounds (buffer, &start, &end);
2317         str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2318         if (!EMP_STR_EMPTY (str)) {
2319                 item = gtk_menu_item_new_with_mnemonic (_("_Send"));
2320                 g_signal_connect (G_OBJECT (item), "activate",
2321                                   G_CALLBACK (chat_text_send_cb), chat);
2322                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2323                 gtk_widget_show (item);
2324         }
2325         str = NULL;
2326
2327         /* Add the spell check menu item. */
2328         table = gtk_text_buffer_get_tag_table (buffer);
2329         tag = gtk_text_tag_table_lookup (table, "misspelled");
2330
2331         switch (priv->most_recent_event_type) {
2332             case GDK_BUTTON_PRESS:
2333                 /* get the location from the pointer */
2334                 gdk_window_get_device_position (gtk_widget_get_window (GTK_WIDGET (view)),
2335                         gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (
2336                                 gtk_widget_get_display (GTK_WIDGET (view)))), &x, &y, NULL);
2337
2338                 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
2339                                                        GTK_TEXT_WINDOW_WIDGET,
2340                                                        x, y,
2341                                                        &x, &y);
2342                 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
2343                                                     &iter, x, y);
2344                 break;
2345
2346             default:
2347                 g_warn_if_reached ();
2348                 /* assume the KEY_PRESS case */
2349
2350             case GDK_KEY_PRESS:
2351                 /* get the location from the cursor */
2352                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2353                                 gtk_text_buffer_get_insert (buffer));
2354                 break;
2355
2356         }
2357
2358         start = end = iter;
2359         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
2360             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
2361
2362                 str = gtk_text_buffer_get_text (buffer,
2363                                                 &start, &end, FALSE);
2364         }
2365         if (!EMP_STR_EMPTY (str)) {
2366                 chat_spell = chat_spell_new (chat, str, start, end);
2367                 g_object_set_data_full (G_OBJECT (menu),
2368                                         "chat-spell", chat_spell,
2369                                         (GDestroyNotify) chat_spell_free);
2370
2371                 item = gtk_separator_menu_item_new ();
2372                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2373                 gtk_widget_show (item);
2374
2375                 /* Spelling suggestions */
2376                 item = gtk_image_menu_item_new_with_mnemonic (_("_Spelling Suggestions"));
2377                 image = gtk_image_new_from_icon_name (GTK_STOCK_SPELL_CHECK,
2378                                                       GTK_ICON_SIZE_MENU);
2379                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2380
2381                 spell_menu = chat_spelling_build_menu (chat_spell);
2382                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), spell_menu);
2383
2384
2385                 spell_item = gtk_separator_menu_item_new ();
2386                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2387                 gtk_widget_show (spell_item);
2388
2389                 /* Add to dictionary */
2390                 spell_item = chat_spelling_build_add_to_dictionary_item (chat_spell);
2391
2392                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2393                 gtk_widget_show (spell_item);
2394
2395                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2396                 gtk_widget_show (item);
2397         }
2398 }
2399
2400
2401 static gboolean
2402 chat_log_filter (TplEvent *event,
2403                  gpointer user_data)
2404 {
2405         EmpathyChat *chat = user_data;
2406         EmpathyMessage *message;
2407         EmpathyChatPriv *priv = GET_PRIV (chat);
2408         const GList *pending;
2409
2410         g_return_val_if_fail (TPL_IS_EVENT (event), FALSE);
2411         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
2412
2413         pending = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2414         message = empathy_message_from_tpl_log_event (event);
2415
2416         for (; pending; pending = g_list_next (pending)) {
2417                 if (empathy_message_equal (message, pending->data)) {
2418                         g_object_unref (message);
2419                         return FALSE;
2420                 }
2421         }
2422
2423         g_object_unref (message);
2424         return TRUE;
2425 }
2426
2427
2428 static void
2429 show_pending_messages (EmpathyChat *chat) {
2430         EmpathyChatPriv *priv = GET_PRIV (chat);
2431         const GList *messages, *l;
2432
2433         g_return_if_fail (EMPATHY_IS_CHAT (chat));
2434
2435         if (chat->view == NULL || priv->tp_chat == NULL)
2436                 return;
2437
2438         if (!priv->can_show_pending)
2439                 return;
2440
2441         messages = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2442
2443         for (l = messages; l != NULL ; l = g_list_next (l)) {
2444                 EmpathyMessage *message = EMPATHY_MESSAGE (l->data);
2445                 chat_message_received (chat, message, TRUE);
2446         }
2447 }
2448
2449
2450 static void
2451 got_filtered_messages_cb (GObject *manager,
2452                 GAsyncResult *result,
2453                 gpointer user_data)
2454 {
2455         GList *l;
2456         GList *messages;
2457         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2458         EmpathyChatPriv *priv = GET_PRIV (chat);
2459         GError *error = NULL;
2460
2461         if (!tpl_log_manager_get_filtered_events_finish (TPL_LOG_MANAGER (manager),
2462                 result, &messages, &error)) {
2463                 DEBUG ("%s. Aborting.", error->message);
2464                 empathy_chat_view_append_event (chat->view,
2465                         _("Failed to retrieve recent logs"));
2466                 g_error_free (error);
2467                 goto out;
2468         }
2469
2470         for (l = messages; l; l = g_list_next (l)) {
2471                 EmpathyMessage *message;
2472
2473                 g_assert (TPL_IS_EVENT (l->data));
2474
2475                 message = empathy_message_from_tpl_log_event (l->data);
2476                 g_object_unref (l->data);
2477
2478                 if (empathy_message_is_edit (message)) {
2479                         /* this is an edited message, create a synthetic event
2480                          * using the supersedes token and
2481                          * original-message-sent timestamp, that we can then
2482                          * replace */
2483                         EmpathyMessage *syn_msg = g_object_new (
2484                                 EMPATHY_TYPE_MESSAGE,
2485                                 "body", "",
2486                                 "token", empathy_message_get_supersedes (message),
2487                                 "type", empathy_message_get_tptype (message),
2488                                 "timestamp", empathy_message_get_original_timestamp (message),
2489                                 "incoming", empathy_message_is_incoming (message),
2490                                 "is-backlog", TRUE,
2491                                 "receiver", empathy_message_get_receiver (message),
2492                                 "sender", empathy_message_get_sender (message),
2493                                 NULL);
2494
2495                         empathy_chat_view_append_message (chat->view, syn_msg);
2496                         empathy_chat_view_edit_message (chat->view, message);
2497
2498                         g_object_unref (syn_msg);
2499                 } else {
2500                         /* append the latest message */
2501                         empathy_chat_view_append_message (chat->view, message);
2502                 }
2503
2504                 g_object_unref (message);
2505         }
2506         g_list_free (messages);
2507
2508 out:
2509         /* in case of TPL error, skip backlog and show pending messages */
2510         priv->can_show_pending = TRUE;
2511         show_pending_messages (chat);
2512
2513         /* FIXME: See Bug#610994, we are forcing the ACK of the queue. See comments
2514          * about it in EmpathyChatPriv definition */
2515         priv->retrieving_backlogs = FALSE;
2516         empathy_chat_messages_read (chat);
2517
2518         /* Turn back on scrolling */
2519         empathy_chat_view_scroll (chat->view, TRUE);
2520 }
2521
2522 static void
2523 chat_add_logs (EmpathyChat *chat)
2524 {
2525         EmpathyChatPriv *priv = GET_PRIV (chat);
2526         TplEntity       *target;
2527
2528         if (!priv->id) {
2529                 return;
2530         }
2531
2532         /* Turn off scrolling temporarily */
2533         empathy_chat_view_scroll (chat->view, FALSE);
2534
2535         /* Add messages from last conversation */
2536         if (priv->handle_type == TP_HANDLE_TYPE_ROOM)
2537           target = tpl_entity_new_from_room_id (priv->id);
2538         else
2539           target = tpl_entity_new (priv->id, TPL_ENTITY_CONTACT, NULL, NULL);
2540
2541         priv->retrieving_backlogs = TRUE;
2542         tpl_log_manager_get_filtered_events_async (priv->log_manager,
2543                                                    priv->account,
2544                                                    target,
2545                                                    TPL_EVENT_MASK_TEXT,
2546                                                    5,
2547                                                    chat_log_filter,
2548                                                    chat,
2549                                                    got_filtered_messages_cb,
2550                                                    (gpointer) chat);
2551
2552         g_object_unref (target);
2553 }
2554
2555 static gint
2556 chat_contacts_completion_func (const gchar *s1,
2557                                const gchar *s2,
2558                                gsize        n)
2559 {
2560         gchar *tmp, *nick1, *nick2;
2561         gint   ret;
2562
2563         if (s1 == s2) {
2564                 return 0;
2565         }
2566         if (!s1 || !s2) {
2567                 return s1 ? -1 : +1;
2568         }
2569
2570         tmp = g_utf8_normalize (s1, -1, G_NORMALIZE_DEFAULT);
2571         nick1 = g_utf8_casefold (tmp, -1);
2572         g_free (tmp);
2573
2574         tmp = g_utf8_normalize (s2, -1, G_NORMALIZE_DEFAULT);
2575         nick2 = g_utf8_casefold (tmp, -1);
2576         g_free (tmp);
2577
2578         ret = strncmp (nick1, nick2, n);
2579
2580         g_free (nick1);
2581         g_free (nick2);
2582
2583         return ret;
2584 }
2585
2586 static gchar *
2587 build_part_message (guint           reason,
2588                     const gchar    *name,
2589                     EmpathyContact *actor,
2590                     const gchar    *message)
2591 {
2592         GString *s = g_string_new ("");
2593         const gchar *actor_name = NULL;
2594
2595         if (actor != NULL) {
2596                 actor_name = empathy_contact_get_alias (actor);
2597         }
2598
2599         /* Having an actor only really makes sense for a few actions... */
2600         switch (reason) {
2601         case TP_CHANNEL_GROUP_CHANGE_REASON_OFFLINE:
2602                 g_string_append_printf (s, _("%s has disconnected"), name);
2603                 break;
2604         case TP_CHANNEL_GROUP_CHANGE_REASON_KICKED:
2605                 if (actor_name != NULL) {
2606                         /* translators: reverse the order of these arguments
2607                          * if the kicked should come before the kicker in your locale.
2608                          */
2609                         g_string_append_printf (s, _("%1$s was kicked by %2$s"),
2610                                 name, actor_name);
2611                 } else {
2612                         g_string_append_printf (s, _("%s was kicked"), name);
2613                 }
2614                 break;
2615         case TP_CHANNEL_GROUP_CHANGE_REASON_BANNED:
2616                 if (actor_name != NULL) {
2617                         /* translators: reverse the order of these arguments
2618                          * if the banned should come before the banner in your locale.
2619                          */
2620                         g_string_append_printf (s, _("%1$s was banned by %2$s"),
2621                                 name, actor_name);
2622                 } else {
2623                         g_string_append_printf (s, _("%s was banned"), name);
2624                 }
2625                 break;
2626         default:
2627                 g_string_append_printf (s, _("%s has left the room"), name);
2628         }
2629
2630         if (!EMP_STR_EMPTY (message)) {
2631                 /* Note to translators: this string is appended to
2632                  * notifications like "foo has left the room", with the message
2633                  * given by the user living the room. If this poses a problem,
2634                  * please let us know. :-)
2635                  */
2636                 g_string_append_printf (s, _(" (%s)"), message);
2637         }
2638
2639         return g_string_free (s, FALSE);
2640 }
2641
2642 static void
2643 chat_members_changed_cb (EmpathyTpChat  *tp_chat,
2644                          EmpathyContact *contact,
2645                          EmpathyContact *actor,
2646                          guint           reason,
2647                          gchar          *message,
2648                          gboolean        is_member,
2649                          EmpathyChat    *chat)
2650 {
2651         EmpathyChatPriv *priv = GET_PRIV (chat);
2652         const gchar *name = empathy_contact_get_alias (contact);
2653         gchar *str;
2654
2655         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED != reason);
2656
2657         if (priv->block_events_timeout_id != 0)
2658                 return;
2659
2660         if (is_member) {
2661                 str = g_strdup_printf (_("%s has joined the room"),
2662                                        name);
2663         } else {
2664                 str = build_part_message (reason, name, actor, message);
2665         }
2666
2667         empathy_chat_view_append_event (chat->view, str);
2668         g_free (str);
2669 }
2670
2671 static void
2672 chat_member_renamed_cb (EmpathyTpChat  *tp_chat,
2673                          EmpathyContact *old_contact,
2674                          EmpathyContact *new_contact,
2675                          guint           reason,
2676                          gchar          *message,
2677                          EmpathyChat    *chat)
2678 {
2679         EmpathyChatPriv *priv = GET_PRIV (chat);
2680
2681         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED == reason);
2682
2683         if (priv->block_events_timeout_id == 0) {
2684                 gchar *str;
2685
2686                 str = g_strdup_printf (_("%s is now known as %s"),
2687                                        empathy_contact_get_alias (old_contact),
2688                                        empathy_contact_get_alias (new_contact));
2689                 empathy_chat_view_append_event (chat->view, str);
2690                 g_free (str);
2691         }
2692
2693 }
2694
2695 static gboolean
2696 chat_contacts_visible_timeout_cb (gpointer chat)
2697 {
2698         EmpathyChatPriv *priv = GET_PRIV (chat);
2699
2700         /* Relax the size request */
2701         gtk_widget_set_size_request (priv->vbox_left, -1, -1);
2702
2703         /* Set the position of the slider. This must be done here because
2704          * GtkPaned need to know its size allocation and it will be settled only
2705          * after the gtk_window_resize () tough effect. */
2706         if (priv->contacts_width > 0) {
2707                 gtk_paned_set_position (GTK_PANED (priv->hpaned),
2708                                         priv->contacts_width);
2709         }
2710
2711         priv->contacts_visible_id = 0;
2712
2713         return FALSE;
2714 }
2715
2716 static void
2717 chat_update_contacts_visibility (EmpathyChat *chat,
2718                          gboolean show)
2719 {
2720         EmpathyChatPriv *priv = GET_PRIV (chat);
2721
2722         if (!priv->scrolled_window_contacts) {
2723                 return;
2724         }
2725
2726         if (priv->remote_contact != NULL) {
2727                 show = FALSE;
2728         }
2729
2730         if (show && priv->contact_list_view == NULL) {
2731                 EmpathyContactListStore *store;
2732                 gint                     min_width;
2733                 GtkAllocation            allocation;
2734
2735                 /* We are adding the contact list to the chat, we don't want the
2736                  * chat view to become too small. If the chat view is already
2737                  * smaller than 250 make sure that size won't change. If the
2738                  * chat view is bigger the contact list will take some space on
2739                  * it but we make sure the chat view don't become smaller than
2740                  * 250. Relax the size request once the resize is done */
2741                 gtk_widget_get_allocation (priv->vbox_left, &allocation);
2742                 min_width = MIN (allocation.width, 250);
2743                 gtk_widget_set_size_request (priv->vbox_left, min_width, -1);
2744
2745                 /* There is no way to know when the window resize will happen
2746                  * since it is WM's decision. Let's hope it won't be longer. */
2747                 if (priv->contacts_visible_id != 0)
2748                         g_source_remove (priv->contacts_visible_id);
2749                 priv->contacts_visible_id = g_timeout_add (500,
2750                         chat_contacts_visible_timeout_cb, chat);
2751
2752                 store = empathy_contact_list_store_new (
2753                                 EMPATHY_CONTACT_LIST (priv->tp_chat));
2754                 empathy_contact_list_store_set_show_groups (
2755                                 EMPATHY_CONTACT_LIST_STORE (store), FALSE);
2756
2757                 priv->contact_list_view = GTK_WIDGET (empathy_contact_list_view_new (store,
2758                         EMPATHY_CONTACT_LIST_FEATURE_CONTACT_TOOLTIP,
2759                         EMPATHY_CONTACT_FEATURE_CHAT |
2760                         EMPATHY_CONTACT_FEATURE_CALL |
2761                         EMPATHY_CONTACT_FEATURE_LOG |
2762                         EMPATHY_CONTACT_FEATURE_INFO));
2763                 gtk_container_add (GTK_CONTAINER (priv->scrolled_window_contacts),
2764                                    priv->contact_list_view);
2765                 gtk_widget_show (priv->contact_list_view);
2766                 gtk_widget_show (priv->scrolled_window_contacts);
2767                 g_object_unref (store);
2768         } else if (!show) {
2769                 priv->contacts_width = gtk_paned_get_position (GTK_PANED (priv->hpaned));
2770                 gtk_widget_hide (priv->scrolled_window_contacts);
2771                 if (priv->contact_list_view != NULL) {
2772                         gtk_widget_destroy (priv->contact_list_view);
2773                         priv->contact_list_view = NULL;
2774                 }
2775         }
2776 }
2777
2778 void
2779 empathy_chat_set_show_contacts (EmpathyChat *chat,
2780                                 gboolean     show)
2781 {
2782         EmpathyChatPriv *priv = GET_PRIV (chat);
2783
2784         priv->show_contacts = show;
2785
2786         chat_update_contacts_visibility (chat, show);
2787
2788         g_object_notify (G_OBJECT (chat), "show-contacts");
2789 }
2790
2791 static void
2792 chat_remote_contact_changed_cb (EmpathyChat *chat)
2793 {
2794         EmpathyChatPriv *priv = GET_PRIV (chat);
2795
2796         if (priv->remote_contact != NULL) {
2797                 g_object_unref (priv->remote_contact);
2798                 priv->remote_contact = NULL;
2799         }
2800
2801         g_free (priv->id);
2802
2803         priv->id = g_strdup (empathy_tp_chat_get_id (priv->tp_chat));
2804         priv->remote_contact = empathy_tp_chat_get_remote_contact (priv->tp_chat);
2805         if (priv->remote_contact != NULL) {
2806                 g_object_ref (priv->remote_contact);
2807                 priv->handle_type = TP_HANDLE_TYPE_CONTACT;
2808         }
2809         else if (priv->tp_chat != NULL) {
2810                 tp_channel_get_handle ((TpChannel *) priv->tp_chat, &priv->handle_type);
2811         }
2812
2813         chat_update_contacts_visibility (chat, priv->show_contacts);
2814
2815         g_object_notify (G_OBJECT (chat), "remote-contact");
2816         g_object_notify (G_OBJECT (chat), "id");
2817 }
2818
2819 static void
2820 chat_invalidated_cb (EmpathyTpChat *tp_chat,
2821                  guint domain,
2822                  gint code,
2823                  gchar *message,
2824                  EmpathyChat   *chat)
2825 {
2826         EmpathyChatPriv *priv;
2827
2828         priv = GET_PRIV (chat);
2829
2830         if (!priv->tp_chat) {
2831                 return;
2832         }
2833
2834         chat_composing_remove_timeout (chat);
2835         g_object_unref (priv->tp_chat);
2836         priv->tp_chat = NULL;
2837         g_object_notify (G_OBJECT (chat), "tp-chat");
2838
2839         empathy_chat_view_append_event (chat->view, _("Disconnected"));
2840         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
2841
2842         chat_update_contacts_visibility (chat, FALSE);
2843
2844         priv->unread_messages_when_offline = priv->unread_messages;
2845 }
2846
2847 static gboolean
2848 update_misspelled_words (gpointer data)
2849 {
2850         EmpathyChat *chat = EMPATHY_CHAT (data);
2851         EmpathyChatPriv *priv = GET_PRIV (chat);
2852         GtkTextBuffer *buffer;
2853         GtkTextIter iter;
2854         gint length;
2855
2856         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2857
2858         gtk_text_buffer_get_end_iter (buffer, &iter);
2859         length = gtk_text_iter_get_offset (&iter);
2860         chat_input_text_buffer_insert_text_cb (buffer, &iter,
2861                                                NULL, length, chat);
2862
2863         priv->update_misspelled_words_id = 0;
2864
2865         return FALSE;
2866 }
2867
2868 static void
2869 conf_spell_checking_cb (GSettings *gsettings_chat,
2870                         const gchar *key,
2871                         gpointer user_data)
2872 {
2873         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2874         EmpathyChatPriv *priv = GET_PRIV (chat);
2875         gboolean spell_checker;
2876         GtkTextBuffer *buffer;
2877
2878         if (strcmp (key, EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED) != 0)
2879                 return;
2880
2881         spell_checker = g_settings_get_boolean (gsettings_chat,
2882                         EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED);
2883
2884         if (!empathy_spell_supported ()) {
2885                 spell_checker = FALSE;
2886         }
2887
2888         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2889
2890         if (spell_checker == priv->spell_checking_enabled) {
2891                 if (spell_checker) {
2892                         /* Possibly changed dictionaries,
2893                          * update misspelled words. Need to do so in idle
2894                          * so the spell checker is updated. */
2895                         priv->update_misspelled_words_id =
2896                                 g_idle_add (update_misspelled_words, chat);
2897                 }
2898
2899                 return;
2900         }
2901
2902         if (spell_checker) {
2903                 GtkTextIter iter;
2904
2905                 priv->notify_cursor_position_id = tp_g_signal_connect_object  (
2906                                 buffer, "notify::cursor-position",
2907                                 G_CALLBACK (chat_input_text_buffer_notify_cursor_position_cb),
2908                                 chat, 0);
2909                 priv->insert_text_id = tp_g_signal_connect_object  (
2910                                 buffer, "insert-text",
2911                                 G_CALLBACK (chat_input_text_buffer_insert_text_cb),
2912                                 chat, G_CONNECT_AFTER);
2913                 priv->delete_range_id = tp_g_signal_connect_object  (
2914                                 buffer, "delete-range",
2915                                 G_CALLBACK (chat_input_text_buffer_delete_range_cb),
2916                                 chat, G_CONNECT_AFTER);
2917
2918                 gtk_text_buffer_create_tag (buffer, "misspelled",
2919                                             "underline", PANGO_UNDERLINE_ERROR,
2920                                             NULL);
2921
2922                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2923                                                   gtk_text_buffer_get_insert (buffer));
2924                 gtk_text_buffer_create_mark (buffer, "previous-cursor-position",
2925                                              &iter, TRUE);
2926
2927                 /* Mark misspelled words in the existing buffer.
2928                  * Need to do so in idle so the spell checker is updated. */
2929                 priv->update_misspelled_words_id =
2930                         g_idle_add (update_misspelled_words, chat);
2931         } else {
2932                 GtkTextTagTable *table;
2933                 GtkTextTag *tag;
2934
2935                 g_signal_handler_disconnect (buffer, priv->notify_cursor_position_id);
2936                 priv->notify_cursor_position_id = 0;
2937                 g_signal_handler_disconnect (buffer, priv->insert_text_id);
2938                 priv->insert_text_id = 0;
2939                 g_signal_handler_disconnect (buffer, priv->delete_range_id);
2940                 priv->delete_range_id = 0;
2941
2942                 table = gtk_text_buffer_get_tag_table (buffer);
2943                 tag = gtk_text_tag_table_lookup (table, "misspelled");
2944                 gtk_text_tag_table_remove (table, tag);
2945
2946                 gtk_text_buffer_delete_mark_by_name (buffer,
2947                                                      "previous-cursor-position");
2948         }
2949
2950         priv->spell_checking_enabled = spell_checker;
2951 }
2952
2953 static gboolean
2954 save_paned_pos_timeout (gpointer data)
2955 {
2956         EmpathyChat *self = data;
2957         gint hpaned_pos;
2958
2959         hpaned_pos = gtk_paned_get_position (GTK_PANED (self->priv->hpaned));
2960
2961         g_settings_set_int (self->priv->gsettings_ui,
2962                             EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS,
2963                             hpaned_pos);
2964
2965         return FALSE;
2966 }
2967
2968 static gboolean
2969 chat_hpaned_pos_changed_cb (GtkWidget* hpaned,
2970                 GParamSpec *spec,
2971                 gpointer user_data)
2972 {
2973         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2974
2975         if (chat->priv->save_paned_pos_id != 0)
2976                 g_source_remove (chat->priv->save_paned_pos_id);
2977
2978         chat->priv->save_paned_pos_id = g_timeout_add_seconds (1,
2979                 save_paned_pos_timeout, chat);
2980
2981         return TRUE;
2982 }
2983
2984 static void
2985 chat_create_ui (EmpathyChat *chat)
2986 {
2987         EmpathyChatPriv *priv = GET_PRIV (chat);
2988         GtkBuilder      *gui;
2989         GList           *list = NULL;
2990         gchar           *filename;
2991         GtkTextBuffer   *buffer;
2992         EmpathyThemeManager *theme_mgr;
2993
2994         filename = empathy_file_lookup ("empathy-chat.ui",
2995                                         "libempathy-gtk");
2996         gui = empathy_builder_get_file (filename,
2997                                         "chat_widget", &priv->widget,
2998                                         "hpaned", &priv->hpaned,
2999                                         "vbox_left", &priv->vbox_left,
3000                                         "scrolled_window_chat", &priv->scrolled_window_chat,
3001                                         "scrolled_window_input", &priv->scrolled_window_input,
3002                                         "hbox_topic", &priv->hbox_topic,
3003                                         "expander_topic", &priv->expander_topic,
3004                                         "label_topic", &priv->label_topic,
3005                                         "scrolled_window_contacts", &priv->scrolled_window_contacts,
3006                                         "info_bar_vbox", &priv->info_bar_vbox,
3007                                         NULL);
3008
3009         empathy_builder_connect (gui, chat,
3010                 "expander_topic", "notify::expanded", chat_topic_expander_activate_cb,
3011                 "label_topic", "size-allocate", chat_topic_label_size_allocate_cb,
3012                 NULL);
3013
3014         g_free (filename);
3015
3016         /* Add message view. */
3017         theme_mgr = empathy_theme_manager_dup_singleton ();
3018         chat->view = empathy_theme_manager_create_view (theme_mgr);
3019         g_object_unref (theme_mgr);
3020         /* If this is a GtkTextView, it's set as a drag destination for text/plain
3021            and other types, even though it's non-editable and doesn't accept any
3022            drags.  This steals drag motion for anything inside the scrollbars,
3023            making drag destinations on chat windows far less useful.
3024          */
3025         gtk_drag_dest_unset (GTK_WIDGET (chat->view));
3026         g_signal_connect (chat->view, "focus_in_event",
3027                           G_CALLBACK (chat_text_view_focus_in_event_cb),
3028                           chat);
3029         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_chat),
3030                            GTK_WIDGET (chat->view));
3031         gtk_widget_show (GTK_WIDGET (chat->view));
3032
3033         /* Add input GtkTextView */
3034         chat->input_text_view = empathy_input_text_view_new ();
3035         g_signal_connect (chat->input_text_view, "notify::has-focus",
3036                           G_CALLBACK (chat_input_has_focus_notify_cb),
3037                           chat);
3038         g_signal_connect (chat->input_text_view, "key-press-event",
3039                           G_CALLBACK (chat_input_key_press_event_cb),
3040                           chat);
3041         g_signal_connect (chat->input_text_view, "realize",
3042                           G_CALLBACK (chat_input_realize_cb),
3043                           chat);
3044         g_signal_connect (chat->input_text_view, "button-press-event",
3045                           G_CALLBACK (chat_input_button_press_event_cb),
3046                           chat);
3047         g_signal_connect (chat->input_text_view, "populate-popup",
3048                           G_CALLBACK (chat_input_populate_popup_cb),
3049                           chat);
3050         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
3051         tp_g_signal_connect_object  (buffer, "changed",
3052                           G_CALLBACK (chat_input_text_buffer_changed_cb),
3053                           chat, 0);
3054         tp_g_signal_connect_object (priv->gsettings_chat,
3055                         "changed::" EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
3056                         G_CALLBACK (conf_spell_checking_cb), chat, 0);
3057         conf_spell_checking_cb (priv->gsettings_chat,
3058                                 EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED, chat);
3059         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_input),
3060                            chat->input_text_view);
3061         gtk_widget_show (chat->input_text_view);
3062
3063         /* Add the (invisible) search bar */
3064         priv->search_bar = empathy_search_bar_new (chat->view);
3065         gtk_box_pack_start (GTK_BOX(priv->vbox_left),
3066                             priv->search_bar,
3067                             FALSE, FALSE, 0);
3068         gtk_box_reorder_child (GTK_BOX(priv->vbox_left), priv->search_bar, 1);
3069
3070         /* Initialy hide the topic, will be shown if not empty */
3071         gtk_widget_hide (priv->hbox_topic);
3072
3073         g_signal_connect (priv->hpaned, "notify::position",
3074                           G_CALLBACK (chat_hpaned_pos_changed_cb),
3075                           chat);
3076
3077         /* Set widget focus order */
3078         list = g_list_append (NULL, priv->search_bar);
3079         list = g_list_append (list, priv->scrolled_window_input);
3080         gtk_container_set_focus_chain (GTK_CONTAINER (priv->vbox_left), list);
3081         g_list_free (list);
3082
3083         list = g_list_append (NULL, priv->vbox_left);
3084         list = g_list_append (list, priv->scrolled_window_contacts);
3085         gtk_container_set_focus_chain (GTK_CONTAINER (priv->hpaned), list);
3086         g_list_free (list);
3087
3088         list = g_list_append (NULL, priv->hpaned);
3089         list = g_list_append (list, priv->hbox_topic);
3090         gtk_container_set_focus_chain (GTK_CONTAINER (priv->widget), list);
3091         g_list_free (list);
3092
3093         /* Add the main widget in the chat widget */
3094         gtk_box_pack_start (GTK_BOX (chat), priv->widget, TRUE, TRUE, 0);
3095         g_object_unref (gui);
3096 }
3097
3098 static void
3099 chat_finalize (GObject *object)
3100 {
3101         EmpathyChat     *chat;
3102         EmpathyChatPriv *priv;
3103
3104         chat = EMPATHY_CHAT (object);
3105         priv = GET_PRIV (chat);
3106
3107         DEBUG ("Finalized: %p", object);
3108
3109         if (priv->update_misspelled_words_id != 0)
3110                 g_source_remove (priv->update_misspelled_words_id);
3111
3112         if (priv->save_paned_pos_id != 0)
3113                 g_source_remove (priv->save_paned_pos_id);
3114
3115         if (priv->contacts_visible_id != 0)
3116                 g_source_remove (priv->contacts_visible_id);
3117
3118         g_object_unref (priv->gsettings_chat);
3119         g_object_unref (priv->gsettings_ui);
3120
3121         g_list_foreach (priv->input_history, (GFunc) chat_input_history_entry_free, NULL);
3122         g_list_free (priv->input_history);
3123
3124         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
3125         g_list_free (priv->compositors);
3126
3127         chat_composing_remove_timeout (chat);
3128
3129         g_object_unref (priv->account_manager);
3130         g_object_unref (priv->log_manager);
3131
3132         if (priv->tp_chat) {
3133                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3134                         chat_invalidated_cb, chat);
3135                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3136                         chat_message_received_cb, chat);
3137                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3138                         chat_message_acknowledged_cb, chat);
3139                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3140                         chat_send_error_cb, chat);
3141                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3142                         chat_state_changed_cb, chat);
3143                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3144                         chat_members_changed_cb, chat);
3145                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3146                         chat_remote_contact_changed_cb, chat);
3147                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3148                         chat_title_changed_cb, chat);
3149                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3150                         chat_subject_changed_cb, chat);
3151                 empathy_tp_chat_leave (priv->tp_chat, "");
3152                 g_object_unref (priv->tp_chat);
3153         }
3154         if (priv->account) {
3155                 g_object_unref (priv->account);
3156         }
3157         if (priv->remote_contact) {
3158                 g_object_unref (priv->remote_contact);
3159         }
3160
3161         if (priv->block_events_timeout_id) {
3162                 g_source_remove (priv->block_events_timeout_id);
3163         }
3164
3165         g_free (priv->id);
3166         g_free (priv->name);
3167         g_free (priv->subject);
3168         g_completion_free (priv->completion);
3169
3170         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
3171 }
3172
3173 static void
3174 chat_constructed (GObject *object)
3175 {
3176         EmpathyChat *chat = EMPATHY_CHAT (object);
3177         EmpathyChatPriv *priv = GET_PRIV (chat);
3178
3179         if (priv->handle_type != TP_HANDLE_TYPE_ROOM) {
3180                 /* First display logs from the logger and then display pending messages */
3181                 chat_add_logs (chat);
3182         }
3183          else {
3184                 /* Just display pending messages for rooms */
3185                 priv->can_show_pending = TRUE;
3186                 show_pending_messages (chat);
3187         }
3188 }
3189
3190 static void
3191 empathy_chat_class_init (EmpathyChatClass *klass)
3192 {
3193         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
3194
3195         object_class->finalize = chat_finalize;
3196         object_class->get_property = chat_get_property;
3197         object_class->set_property = chat_set_property;
3198         object_class->constructed = chat_constructed;
3199
3200         g_object_class_install_property (object_class,
3201                                          PROP_TP_CHAT,
3202                                          g_param_spec_object ("tp-chat",
3203                                                               "Empathy tp chat",
3204                                                               "The tp chat object",
3205                                                               EMPATHY_TYPE_TP_CHAT,
3206                                                               G_PARAM_CONSTRUCT |
3207                                                               G_PARAM_READWRITE |
3208                                                               G_PARAM_STATIC_STRINGS));
3209         g_object_class_install_property (object_class,
3210                                          PROP_ACCOUNT,
3211                                          g_param_spec_object ("account",
3212                                                               "Account of the chat",
3213                                                               "The account of the chat",
3214                                                               TP_TYPE_ACCOUNT,
3215                                                               G_PARAM_READABLE |
3216                                                               G_PARAM_STATIC_STRINGS));
3217         g_object_class_install_property (object_class,
3218                                          PROP_ID,
3219                                          g_param_spec_string ("id",
3220                                                               "Chat's id",
3221                                                               "The id of the chat",
3222                                                               NULL,
3223                                                               G_PARAM_READABLE |
3224                                                               G_PARAM_STATIC_STRINGS));
3225         g_object_class_install_property (object_class,
3226                                          PROP_NAME,
3227                                          g_param_spec_string ("name",
3228                                                               "Chat's name",
3229                                                               "The name of the chat",
3230                                                               NULL,
3231                                                               G_PARAM_READABLE |
3232                                                               G_PARAM_STATIC_STRINGS));
3233         g_object_class_install_property (object_class,
3234                                          PROP_SUBJECT,
3235                                          g_param_spec_string ("subject",
3236                                                               "Chat's subject",
3237                                                               "The subject or topic of the chat",
3238                                                               NULL,
3239                                                               G_PARAM_READABLE |
3240                                                               G_PARAM_STATIC_STRINGS));
3241         g_object_class_install_property (object_class,
3242                                          PROP_REMOTE_CONTACT,
3243                                          g_param_spec_object ("remote-contact",
3244                                                               "The remote contact",
3245                                                               "The remote contact is any",
3246                                                               EMPATHY_TYPE_CONTACT,
3247                                                               G_PARAM_READABLE |
3248                                                               G_PARAM_STATIC_STRINGS));
3249         g_object_class_install_property (object_class,
3250                                          PROP_SHOW_CONTACTS,
3251                                          g_param_spec_boolean ("show-contacts",
3252                                                                "Contacts' visibility",
3253                                                                "The visibility of the contacts' list",
3254                                                                TRUE,
3255                                                                G_PARAM_READWRITE |
3256                                                                G_PARAM_STATIC_STRINGS));
3257
3258         g_object_class_install_property (object_class,
3259                                          PROP_SMS_CHANNEL,
3260                                          g_param_spec_boolean ("sms-channel",
3261                                                                "SMS Channel",
3262                                                                "TRUE if this channel is for sending SMSes",
3263                                                                FALSE,
3264                                                                G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3265
3266         g_object_class_install_property (object_class,
3267                                          PROP_N_MESSAGES_SENDING,
3268                                          g_param_spec_uint ("n-messages-sending",
3269                                                             "Num Messages Sending",
3270                                                             "The number of messages being sent",
3271                                                             0, G_MAXUINT, 0,
3272                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3273
3274         g_object_class_install_property (object_class,
3275                                          PROP_NB_UNREAD_MESSAGES,
3276                                          g_param_spec_uint ("nb-unread-messages",
3277                                                             "Num Unread Messages",
3278                                                             "The number of unread messages",
3279                                                             0, G_MAXUINT, 0,
3280                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3281
3282         signals[COMPOSING] =
3283                 g_signal_new ("composing",
3284                               G_OBJECT_CLASS_TYPE (object_class),
3285                               G_SIGNAL_RUN_LAST,
3286                               0,
3287                               NULL, NULL,
3288                               g_cclosure_marshal_generic,
3289                               G_TYPE_NONE,
3290                               1, G_TYPE_BOOLEAN);
3291
3292         signals[NEW_MESSAGE] =
3293                 g_signal_new ("new-message",
3294                               G_OBJECT_CLASS_TYPE (object_class),
3295                               G_SIGNAL_RUN_LAST,
3296                               0,
3297                               NULL, NULL,
3298                               g_cclosure_marshal_generic,
3299                               G_TYPE_NONE,
3300                               2, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN);
3301
3302         signals[PART_COMMAND_ENTERED] =
3303                         g_signal_new ("part-command-entered",
3304                                   G_OBJECT_CLASS_TYPE (object_class),
3305                                   G_SIGNAL_RUN_LAST,
3306                                   0,
3307                                   NULL, NULL,
3308                                   g_cclosure_marshal_generic,
3309                                   G_TYPE_NONE,
3310                                   1, G_TYPE_STRV);
3311
3312         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
3313 }
3314
3315 static gboolean
3316 chat_block_events_timeout_cb (gpointer data)
3317 {
3318         EmpathyChatPriv *priv = GET_PRIV (data);
3319
3320         priv->block_events_timeout_id = 0;
3321
3322         return FALSE;
3323 }
3324
3325 static void
3326 account_manager_prepared_cb (GObject *source_object,
3327                              GAsyncResult *result,
3328                              gpointer user_data)
3329 {
3330         GList *accounts, *l;
3331         TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
3332         EmpathyChat *chat = user_data;
3333         GError *error = NULL;
3334
3335         if (!tp_proxy_prepare_finish (account_manager, result, &error)) {
3336                 DEBUG ("Failed to prepare the account manager: %s", error->message);
3337                 g_error_free (error);
3338                 return;
3339         }
3340
3341         accounts = tp_account_manager_get_valid_accounts (account_manager);
3342
3343         for (l = accounts; l != NULL; l = l->next) {
3344                 TpAccount *account = l->data;
3345                 tp_g_signal_connect_object (account, "status-changed",
3346                                              G_CALLBACK (chat_new_connection_cb),
3347                                              chat, 0);
3348         }
3349
3350         g_list_free (accounts);
3351 }
3352
3353 static void
3354 empathy_chat_init (EmpathyChat *chat)
3355 {
3356         EmpathyChatPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (chat,
3357                 EMPATHY_TYPE_CHAT, EmpathyChatPriv);
3358
3359         chat->priv = priv;
3360         priv->log_manager = tpl_log_manager_dup_singleton ();
3361         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
3362         priv->gsettings_ui = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
3363
3364         priv->contacts_width = g_settings_get_int (priv->gsettings_ui,
3365                 EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS);
3366         priv->input_history = NULL;
3367         priv->input_history_current = NULL;
3368         priv->account_manager = tp_account_manager_dup ();
3369
3370         tp_proxy_prepare_async (priv->account_manager, NULL,
3371                                           account_manager_prepared_cb, chat);
3372
3373         priv->show_contacts = g_settings_get_boolean (priv->gsettings_chat,
3374                         EMPATHY_PREFS_CHAT_SHOW_CONTACTS_IN_ROOMS);
3375
3376         /* Block events for some time to avoid having "has come online" or
3377          * "joined" messages. */
3378         priv->block_events_timeout_id =
3379                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
3380
3381         /* Add nick name completion */
3382         priv->completion = g_completion_new ((GCompletionFunc) empathy_contact_get_alias);
3383         g_completion_set_compare (priv->completion, chat_contacts_completion_func);
3384
3385         chat_create_ui (chat);
3386 }
3387
3388 EmpathyChat *
3389 empathy_chat_new (EmpathyTpChat *tp_chat)
3390 {
3391         return g_object_new (EMPATHY_TYPE_CHAT, "tp-chat", tp_chat, NULL);
3392 }
3393
3394 EmpathyTpChat *
3395 empathy_chat_get_tp_chat (EmpathyChat *chat)
3396 {
3397         EmpathyChatPriv *priv = GET_PRIV (chat);
3398
3399         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3400
3401         return priv->tp_chat;
3402 }
3403
3404 typedef struct
3405 {
3406         EmpathyChat *self;
3407         GtkWidget *info_bar;
3408         gulong response_id;
3409         GtkWidget *button;
3410         GtkWidget *label;
3411         GtkWidget *entry;
3412         GtkWidget *spinner;
3413         gchar *password;
3414 } PasswordData;
3415
3416 static void
3417 passwd_remember_button_cb (GtkButton *button,
3418                           PasswordData *data)
3419 {
3420         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3421 }
3422
3423 static void
3424 passwd_not_now_button_cb (GtkButton *button,
3425                           PasswordData *data)
3426 {
3427         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_NO);
3428 }
3429
3430 static void
3431 remember_password_infobar_response_cb (GtkWidget *info_bar,
3432                                        gint response_id,
3433                                        PasswordData *data)
3434 {
3435         EmpathyChatPriv *priv = GET_PRIV (data->self);
3436
3437         if (response_id == GTK_RESPONSE_OK) {
3438                 DEBUG ("Saving room password");
3439                 empathy_keyring_set_room_password_async (priv->account,
3440                                                          empathy_tp_chat_get_id (priv->tp_chat),
3441                                                          data->password,
3442                                                          NULL, NULL);
3443         }
3444
3445         gtk_widget_destroy (info_bar);
3446         g_free (data->password);
3447         g_slice_free (PasswordData, data);
3448 }
3449
3450 static void
3451 chat_prompt_to_save_password (EmpathyChat *self,
3452                               PasswordData *data)
3453 {
3454         GtkWidget *content_area;
3455         GtkWidget *hbox;
3456         GtkWidget *image;
3457         GtkWidget *label;
3458         GtkWidget *alig;
3459         GtkWidget *button;
3460
3461         /* save the password in case it needs to be saved */
3462         data->password = g_strdup (gtk_entry_get_text (GTK_ENTRY (data->entry)));
3463
3464         /* Remove all previous widgets */
3465         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (data->info_bar));
3466         gtk_container_forall (GTK_CONTAINER (content_area),
3467                               (GtkCallback) gtk_widget_destroy, NULL);
3468         data->button = NULL;
3469         data->label = NULL;
3470         data->entry = NULL;
3471         data->spinner = NULL;
3472
3473         gtk_info_bar_set_message_type (GTK_INFO_BAR (data->info_bar),
3474                                        GTK_MESSAGE_QUESTION);
3475
3476         hbox = gtk_hbox_new (FALSE, 5);
3477         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3478
3479         /* Add image */
3480         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3481                                           GTK_ICON_SIZE_DIALOG);
3482         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3483
3484         /* Add message */
3485         label = gtk_label_new (_("Would you like to store this password?"));
3486         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
3487
3488         /* Add 'Remember' button */
3489         alig = gtk_alignment_new (0, 0.5, 1, 0);
3490
3491         button = gtk_button_new_with_label (_("Remember"));
3492         gtk_container_add (GTK_CONTAINER (alig), button);
3493         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3494
3495         g_signal_connect (button, "clicked", G_CALLBACK (passwd_remember_button_cb),
3496                           data);
3497
3498         /* Add 'Not now' button */
3499         alig = gtk_alignment_new (0, 0.5, 1, 0);
3500
3501         button = gtk_button_new_with_label (_("Not now"));
3502         gtk_container_add (GTK_CONTAINER (alig), button);
3503         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3504
3505         g_signal_connect (button, "clicked", G_CALLBACK (passwd_not_now_button_cb),
3506                           data);
3507
3508         /* go! */
3509         g_signal_handler_disconnect (data->info_bar, data->response_id);
3510         g_signal_connect (data->info_bar, "response",
3511                           G_CALLBACK (remember_password_infobar_response_cb), data);
3512
3513         gtk_widget_show_all (data->info_bar);
3514 }
3515
3516 static void
3517 provide_password_cb (GObject *tp_chat,
3518                      GAsyncResult *res,
3519                      gpointer user_data)
3520 {
3521         PasswordData *data = user_data;
3522         EmpathyChat *self = data->self;
3523         EmpathyChatPriv *priv = GET_PRIV (self);
3524         GError *error = NULL;
3525
3526         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3527                                                       &error)) {
3528                 DEBUG ("error: %s", error->message);
3529                 /* FIXME: what should we do if that's another error? Close the channel?
3530                  * Display the raw D-Bus error to the user isn't very useful */
3531                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3532                         /* entry */
3533                         gtk_entry_set_text (GTK_ENTRY (data->entry), "");
3534                         gtk_widget_set_sensitive (data->entry, TRUE);
3535                         gtk_widget_grab_focus (data->entry);
3536
3537                         /* info bar */
3538                         gtk_info_bar_set_message_type (
3539                             GTK_INFO_BAR (data->info_bar),
3540                             GTK_MESSAGE_ERROR);
3541
3542                         /* button */
3543                         gtk_widget_set_sensitive (data->button, TRUE);
3544                         gtk_button_set_label (GTK_BUTTON (data->button),
3545                             _("Retry"));
3546
3547                         /* label */
3548                         gtk_label_set_text (GTK_LABEL (data->label),
3549                             _("Wrong password; please try again:"));
3550
3551                         /* spinner */
3552                         gtk_spinner_stop (GTK_SPINNER (data->spinner));
3553                         gtk_widget_hide (data->spinner);
3554                 }
3555                 g_error_free (error);
3556                 return;
3557         }
3558
3559         if (empathy_keyring_is_available ()) {
3560                 /* ask whether they want to save the password */
3561                 chat_prompt_to_save_password (self, data);
3562         } else {
3563                 /* Get rid of the password info bar finally */
3564                 gtk_widget_destroy (data->info_bar);
3565                 g_slice_free (PasswordData, data);
3566         }
3567
3568         /* Room joined */
3569         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3570         gtk_widget_set_sensitive (self->input_text_view, TRUE);
3571         gtk_widget_grab_focus (self->input_text_view);
3572 }
3573
3574 static void
3575 password_infobar_response_cb (GtkWidget *info_bar,
3576                               gint response_id,
3577                               PasswordData *data)
3578 {
3579         EmpathyChatPriv *priv = GET_PRIV (data->self);
3580         const gchar *password;
3581
3582         if (response_id != GTK_RESPONSE_OK) {
3583                 gtk_widget_destroy (info_bar);
3584                 g_slice_free (PasswordData, data);
3585                 return;
3586         }
3587
3588         password = gtk_entry_get_text (GTK_ENTRY (data->entry));
3589
3590         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3591                                                 provide_password_cb, data);
3592
3593         gtk_widget_set_sensitive (data->button, FALSE);
3594         gtk_widget_set_sensitive (data->entry, FALSE);
3595
3596         gtk_spinner_start (GTK_SPINNER (data->spinner));
3597         gtk_widget_show (data->spinner);
3598 }
3599
3600 static void
3601 password_entry_activate_cb (GtkWidget *entry,
3602                           PasswordData *data)
3603 {
3604         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3605 }
3606
3607 static void
3608 passwd_join_button_cb (GtkButton *button,
3609                           PasswordData *data)
3610 {
3611         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3612 }
3613
3614 static void
3615 clear_icon_released_cb (GtkEntry *entry,
3616                         GtkEntryIconPosition icon_pos,
3617                         GdkEvent *event,
3618                         PasswordData *data)
3619 {
3620         gtk_entry_set_text (entry, "");
3621 }
3622
3623 static void
3624 password_entry_changed_cb (GtkEditable *entry,
3625                            PasswordData *data)
3626 {
3627         const gchar *str;
3628
3629         str = gtk_entry_get_text (GTK_ENTRY (entry));
3630
3631         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3632             GTK_ENTRY_ICON_SECONDARY, !EMP_STR_EMPTY (str));
3633 }
3634
3635 static void
3636 infobar_chat_invalidated_cb (TpProxy       *proxy,
3637                            guint          domain,
3638                            gint           code,
3639                            gchar         *message,
3640                            gpointer       password_infobar)
3641 {
3642         /* Destroy the password infobar whenever a channel is invalidated
3643          * so we don't have multiple infobars when the MUC is rejoined */
3644         gtk_widget_destroy (GTK_WIDGET (password_infobar));
3645 }
3646
3647 static void
3648 display_password_info_bar (EmpathyChat *self)
3649 {
3650         EmpathyChatPriv *priv = GET_PRIV (self);
3651         GtkWidget *info_bar;
3652         GtkWidget *content_area;
3653         GtkWidget *hbox;
3654         GtkWidget *image;
3655         GtkWidget *label;
3656         GtkWidget *entry;
3657         GtkWidget *alig;
3658         GtkWidget *button;
3659         GtkWidget *spinner;
3660         PasswordData *data;
3661
3662         data = g_slice_new0 (PasswordData);
3663
3664         info_bar = gtk_info_bar_new ();
3665         gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
3666             GTK_MESSAGE_QUESTION);
3667
3668         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
3669
3670         hbox = gtk_hbox_new (FALSE, 5);
3671         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3672
3673         /* Add image */
3674         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3675                                           GTK_ICON_SIZE_DIALOG);
3676         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3677
3678         /* Add message */
3679         label = gtk_label_new (_("This room is protected by a password:"));
3680         gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
3681
3682         /* Add password entry */
3683         entry = gtk_entry_new ();
3684         gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
3685         gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
3686
3687         gtk_entry_set_icon_from_stock (GTK_ENTRY (entry),
3688                                        GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
3689         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3690                                       GTK_ENTRY_ICON_SECONDARY, FALSE);
3691
3692         g_signal_connect (entry, "icon-release",
3693                           G_CALLBACK (clear_icon_released_cb), data);
3694         g_signal_connect (entry, "changed",
3695                           G_CALLBACK (password_entry_changed_cb), data);
3696
3697         g_signal_connect (entry, "activate",
3698                           G_CALLBACK (password_entry_activate_cb), data);
3699
3700         /* Focus the password entry once it's realized */
3701         g_signal_connect (entry, "realize", G_CALLBACK (gtk_widget_grab_focus), NULL);
3702
3703         /* Add 'Join' button */
3704         alig = gtk_alignment_new (0, 0.5, 1, 0);
3705
3706         button = gtk_button_new_with_label (_("Join"));
3707         gtk_container_add (GTK_CONTAINER (alig), button);
3708         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3709
3710         g_signal_connect (button, "clicked", G_CALLBACK (passwd_join_button_cb),
3711                           data);
3712
3713         /* Add spinner */
3714         spinner = gtk_spinner_new ();
3715         gtk_box_pack_end (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);
3716
3717         /* Save some data for messing around with later */
3718         data->self = self;
3719         data->info_bar = info_bar;
3720         data->button = button;
3721         data->label = label;
3722         data->entry = entry;
3723         data->spinner = spinner;
3724
3725         gtk_box_pack_start (GTK_BOX (priv->info_bar_vbox), info_bar,
3726                             TRUE, TRUE, 3);
3727         gtk_widget_show_all (hbox);
3728
3729         tp_g_signal_connect_object (priv->tp_chat,
3730                                   "invalidated", G_CALLBACK (infobar_chat_invalidated_cb),
3731                                   info_bar, 0);
3732
3733         data->response_id = g_signal_connect (info_bar, "response",
3734                                               G_CALLBACK (password_infobar_response_cb), data);
3735
3736         gtk_widget_show_all (info_bar);
3737         /* ... but hide the spinner */
3738         gtk_widget_hide (spinner);
3739
3740         /* prevent the user from typing anything */
3741         gtk_widget_set_sensitive (self->input_text_view, FALSE);
3742 }
3743
3744 static void
3745 provide_saved_password_cb (GObject *tp_chat,
3746                            GAsyncResult *res,
3747                            gpointer user_data)
3748 {
3749         EmpathyChat *self = user_data;
3750         EmpathyChatPriv *priv = GET_PRIV (self);
3751         GError *error = NULL;
3752
3753         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3754                                                       &error)) {
3755                 DEBUG ("error: %s", error->message);
3756                 /* FIXME: what should we do if that's another error? Close the channel?
3757                  * Display the raw D-Bus error to the user isn't very useful */
3758                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3759                         display_password_info_bar (self);
3760                         gtk_widget_set_sensitive (priv->hpaned, FALSE);
3761                 }
3762                 g_error_free (error);
3763                 return;
3764         }
3765
3766         /* Room joined */
3767         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3768         gtk_widget_grab_focus (self->input_text_view);
3769 }
3770
3771 static void
3772 chat_room_got_password_cb (GObject *source,
3773                            GAsyncResult *result,
3774                            gpointer user_data)
3775 {
3776         EmpathyChat *self = user_data;
3777         EmpathyChatPriv *priv = GET_PRIV (self);
3778         const gchar *password;
3779         GError *error = NULL;
3780
3781         password = empathy_keyring_get_room_password_finish (priv->account,
3782             result, &error);
3783
3784         if (error != NULL) {
3785                 DEBUG ("Couldn't get room password: %s\n", error->message);
3786                 g_clear_error (&error);
3787
3788                 display_password_info_bar (self);
3789                 gtk_widget_set_sensitive (priv->hpaned, FALSE);
3790                 return;
3791         }
3792
3793         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3794                                                 provide_saved_password_cb, self);
3795 }
3796
3797 static void
3798 chat_password_needed_changed_cb (EmpathyChat *self)
3799 {
3800         EmpathyChatPriv *priv = GET_PRIV (self);
3801
3802         if (tp_channel_password_needed (TP_CHANNEL (priv->tp_chat))) {
3803                 empathy_keyring_get_room_password_async (priv->account,
3804                                                          empathy_tp_chat_get_id (priv->tp_chat),
3805                                                          chat_room_got_password_cb, self);
3806         }
3807 }
3808
3809 static void
3810 chat_sms_channel_changed_cb (EmpathyChat *self)
3811 {
3812         EmpathyChatPriv *priv = GET_PRIV (self);
3813
3814         priv->sms_channel = tp_text_channel_is_sms_channel (
3815                 (TpTextChannel *) priv->tp_chat);
3816         g_object_notify (G_OBJECT (self), "sms-channel");
3817 }
3818
3819 static void
3820 chat_n_messages_sending_changed_cb (EmpathyChat *self)
3821 {
3822         g_object_notify (G_OBJECT (self), "n-messages-sending");
3823 }
3824
3825 void
3826 empathy_chat_set_tp_chat (EmpathyChat   *chat,
3827                           EmpathyTpChat *tp_chat)
3828 {
3829         EmpathyChatPriv *priv = GET_PRIV (chat);
3830
3831         g_return_if_fail (EMPATHY_IS_CHAT (chat));
3832         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
3833
3834         if (priv->tp_chat) {
3835                 return;
3836         }
3837
3838         if (priv->account) {
3839                 g_object_unref (priv->account);
3840         }
3841
3842         priv->tp_chat = g_object_ref (tp_chat);
3843         priv->account = g_object_ref (empathy_tp_chat_get_account (priv->tp_chat));
3844
3845         g_signal_connect (tp_chat, "invalidated",
3846                           G_CALLBACK (chat_invalidated_cb),
3847                           chat);
3848         g_signal_connect (tp_chat, "message-received-empathy",
3849                           G_CALLBACK (chat_message_received_cb),
3850                           chat);
3851         g_signal_connect (tp_chat, "message_acknowledged",
3852                           G_CALLBACK (chat_message_acknowledged_cb),
3853                           chat);
3854         g_signal_connect (tp_chat, "send-error",
3855                           G_CALLBACK (chat_send_error_cb),
3856                           chat);
3857         g_signal_connect (tp_chat, "chat-state-changed-empathy",
3858                           G_CALLBACK (chat_state_changed_cb),
3859                           chat);
3860         g_signal_connect (tp_chat, "members-changed",
3861                           G_CALLBACK (chat_members_changed_cb),
3862                           chat);
3863         g_signal_connect (tp_chat, "member-renamed",
3864                           G_CALLBACK (chat_member_renamed_cb),
3865                           chat);
3866         g_signal_connect_swapped (tp_chat, "notify::remote-contact",
3867                                   G_CALLBACK (chat_remote_contact_changed_cb),
3868                                   chat);
3869         g_signal_connect_swapped (tp_chat, "notify::password-needed",
3870                                   G_CALLBACK (chat_password_needed_changed_cb),
3871                                   chat);
3872         g_signal_connect_swapped (tp_chat, "notify::is-sms-channel",
3873                                   G_CALLBACK (chat_sms_channel_changed_cb),
3874                                   chat);
3875         g_signal_connect_swapped (tp_chat, "notify::n-messages-sending",
3876                                   G_CALLBACK (chat_n_messages_sending_changed_cb),
3877                                   chat);
3878         g_signal_connect_swapped (tp_chat, "notify::title",
3879                                   G_CALLBACK (chat_title_changed_cb),
3880                                   chat);
3881         g_signal_connect_swapped (tp_chat, "notify::subject",
3882                                   G_CALLBACK (chat_subject_changed_cb),
3883                                   chat);
3884
3885         /* Get initial value of properties */
3886         chat_sms_channel_changed_cb (chat);
3887         chat_remote_contact_changed_cb (chat);
3888         chat_title_changed_cb (chat);
3889         chat_subject_changed_cb (chat);
3890
3891         if (chat->input_text_view) {
3892                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
3893                 if (priv->block_events_timeout_id == 0) {
3894                         empathy_chat_view_append_event (chat->view, _("Connected"));
3895                 }
3896         }
3897
3898         g_object_notify (G_OBJECT (chat), "tp-chat");
3899         g_object_notify (G_OBJECT (chat), "id");
3900         g_object_notify (G_OBJECT (chat), "account");
3901
3902         /* This is a noop when tp-chat is set at object construction time and causes
3903          * the pending messages to be show when it's set on the object after it has
3904          * been created */
3905         show_pending_messages (chat);
3906
3907         /* check if a password is needed */
3908         chat_password_needed_changed_cb (chat);
3909 }
3910
3911 TpAccount *
3912 empathy_chat_get_account (EmpathyChat *chat)
3913 {
3914         EmpathyChatPriv *priv = GET_PRIV (chat);
3915
3916         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3917
3918         return priv->account;
3919 }
3920
3921 const gchar *
3922 empathy_chat_get_id (EmpathyChat *chat)
3923 {
3924         EmpathyChatPriv *priv = GET_PRIV (chat);
3925
3926         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3927
3928         return priv->id;
3929 }
3930
3931 gchar *
3932 empathy_chat_dup_name (EmpathyChat *chat)
3933 {
3934         EmpathyChatPriv *priv = GET_PRIV (chat);
3935         const gchar *ret;
3936
3937         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3938
3939         ret = priv->name;
3940
3941         if (!ret && priv->remote_contact) {
3942                 ret = empathy_contact_get_alias (priv->remote_contact);
3943         }
3944
3945         if (!ret)
3946                 ret = priv->id;
3947
3948         if (!ret)
3949                 ret = _("Conversation");
3950
3951         if (priv->sms_channel)
3952                 /* Translators: this string is a something like
3953                  * "Escher Cat (SMS)" */
3954                 return g_strdup_printf (_("%s (SMS)"), ret);
3955         else
3956                 return g_strdup (ret);
3957 }
3958
3959 const gchar *
3960 empathy_chat_get_subject (EmpathyChat *chat)
3961 {
3962         EmpathyChatPriv *priv = GET_PRIV (chat);
3963
3964         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3965
3966         return priv->subject;
3967 }
3968
3969 EmpathyContact *
3970 empathy_chat_get_remote_contact (EmpathyChat *chat)
3971 {
3972         EmpathyChatPriv *priv = GET_PRIV (chat);
3973
3974         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3975
3976         return priv->remote_contact;
3977 }
3978
3979 GtkWidget *
3980 empathy_chat_get_contact_menu (EmpathyChat *chat)
3981 {
3982         EmpathyChatPriv *priv = GET_PRIV (chat);
3983         GtkWidget       *menu = NULL;
3984
3985         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3986
3987         if (priv->remote_contact) {
3988                 menu = empathy_contact_menu_new (priv->remote_contact,
3989                                                  EMPATHY_CONTACT_FEATURE_CALL |
3990                                                  EMPATHY_CONTACT_FEATURE_LOG |
3991                                                  EMPATHY_CONTACT_FEATURE_INFO |
3992                                                  EMPATHY_CONTACT_FEATURE_BLOCK);
3993         }
3994
3995         return menu;
3996 }
3997
3998 void
3999 empathy_chat_clear (EmpathyChat *chat)
4000 {
4001         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4002
4003         empathy_chat_view_clear (chat->view);
4004 }
4005
4006 void
4007 empathy_chat_scroll_down (EmpathyChat *chat)
4008 {
4009         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4010
4011         empathy_chat_view_scroll_down (chat->view);
4012 }
4013
4014 void
4015 empathy_chat_cut (EmpathyChat *chat)
4016 {
4017         GtkTextBuffer *buffer;
4018
4019         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4020
4021         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4022         if (gtk_text_buffer_get_has_selection (buffer)) {
4023                 GtkClipboard *clipboard;
4024
4025                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4026
4027                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
4028         }
4029 }
4030
4031 void
4032 empathy_chat_copy (EmpathyChat *chat)
4033 {
4034         GtkTextBuffer *buffer;
4035
4036         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4037
4038         if (empathy_chat_view_get_has_selection (chat->view)) {
4039                 empathy_chat_view_copy_clipboard (chat->view);
4040                 return;
4041         }
4042
4043         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4044         if (gtk_text_buffer_get_has_selection (buffer)) {
4045                 GtkClipboard *clipboard;
4046
4047                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4048
4049                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
4050         }
4051         else {
4052                 gint start_offset;
4053                 gint end_offset;
4054                 EmpathyChatPriv *priv = GET_PRIV (chat);
4055
4056                 if (gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
4057                                                                &start_offset,
4058                                                                &end_offset)) {
4059                         gchar *start;
4060                         gchar *end;
4061                         gchar *selection;
4062                         const gchar *topic;
4063                         GtkClipboard *clipboard;
4064
4065                         topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
4066                         start = g_utf8_offset_to_pointer (topic, start_offset);
4067                         end = g_utf8_offset_to_pointer (topic, end_offset);
4068                         selection = g_strndup (start, end - start);
4069
4070                         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4071                         gtk_clipboard_set_text (clipboard, selection, -1);
4072
4073                         g_free (selection);
4074                 }
4075         }
4076 }
4077
4078 void
4079 empathy_chat_paste (EmpathyChat *chat)
4080 {
4081         GtkTextBuffer *buffer;
4082         GtkClipboard  *clipboard;
4083         EmpathyChatPriv *priv;
4084
4085         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4086
4087         priv = GET_PRIV (chat);
4088
4089         if (gtk_widget_get_visible (priv->search_bar)) {
4090                 empathy_search_bar_paste_clipboard (EMPATHY_SEARCH_BAR (priv->search_bar));
4091                 return;
4092         }
4093
4094         if (priv->tp_chat == NULL ||
4095             !gtk_widget_is_sensitive (chat->input_text_view))
4096                 return;
4097
4098         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4099         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4100
4101         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
4102 }
4103
4104 void
4105 empathy_chat_find (EmpathyChat *chat)
4106 {
4107         EmpathyChatPriv *priv;
4108
4109         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4110
4111         priv = GET_PRIV (chat);
4112
4113         empathy_search_bar_show (EMPATHY_SEARCH_BAR (priv->search_bar));
4114 }
4115
4116 void
4117 empathy_chat_correct_word (EmpathyChat  *chat,
4118                           GtkTextIter *start,
4119                           GtkTextIter *end,
4120                           const gchar *new_word)
4121 {
4122         GtkTextBuffer *buffer;
4123
4124         g_return_if_fail (chat != NULL);
4125         g_return_if_fail (new_word != NULL);
4126
4127         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4128
4129         gtk_text_buffer_delete (buffer, start, end);
4130         gtk_text_buffer_insert (buffer, start,
4131                                 new_word,
4132                                 -1);
4133 }
4134
4135 gboolean
4136 empathy_chat_is_room (EmpathyChat *chat)
4137 {
4138         EmpathyChatPriv *priv = GET_PRIV (chat);
4139
4140         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
4141
4142         return (priv->handle_type == TP_HANDLE_TYPE_ROOM);
4143 }
4144
4145 guint
4146 empathy_chat_get_nb_unread_messages (EmpathyChat *self)
4147 {
4148         EmpathyChatPriv *priv = GET_PRIV (self);
4149
4150         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4151
4152         return priv->unread_messages;
4153 }
4154
4155 /* called when the messages have been read by user */
4156 void
4157 empathy_chat_messages_read (EmpathyChat *self)
4158 {
4159         EmpathyChatPriv *priv = GET_PRIV (self);
4160
4161         g_return_if_fail (EMPATHY_IS_CHAT (self));
4162
4163         /* FIXME: See Bug#610994, See comments about it in EmpathyChatPriv
4164          * definition. If we are still retrieving the backlogs, do not ACK */
4165         if (priv->retrieving_backlogs)
4166                 return;
4167
4168         if (priv->tp_chat != NULL) {
4169                 tp_text_channel_ack_all_pending_messages_async (
4170                         TP_TEXT_CHANNEL (priv->tp_chat), NULL, NULL);
4171         }
4172
4173         if (priv->unread_messages_when_offline > 0) {
4174                 /* We can't ack those as the connection has gone away so just consider
4175                 * them as read. */
4176                 priv->unread_messages -= priv->unread_messages_when_offline;
4177                 g_object_notify (G_OBJECT (self), "nb-unread-messages");
4178                 priv->unread_messages_when_offline = 0;
4179         }
4180 }
4181
4182 /* Return TRUE if on of the contacts in this chat is composing */
4183 gboolean
4184 empathy_chat_is_composing (EmpathyChat *chat)
4185 {
4186   return chat->priv->compositors != NULL;
4187 }
4188
4189 gboolean
4190 empathy_chat_is_sms_channel (EmpathyChat *self)
4191 {
4192         EmpathyChatPriv *priv = GET_PRIV (self);
4193
4194         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4195
4196         return priv->sms_channel;
4197 }
4198
4199 guint
4200 empathy_chat_get_n_messages_sending (EmpathyChat *self)
4201 {
4202         EmpathyChatPriv *priv;
4203
4204         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4205
4206         priv = GET_PRIV (self);
4207
4208         if (priv->tp_chat == NULL) {
4209                 return 0;
4210         } else {
4211                 guint n_messages;
4212
4213                 g_object_get (priv->tp_chat,
4214                         "n-messages-sending", &n_messages,
4215                         NULL);
4216
4217                 return n_messages;
4218         }
4219 }
4220
4221 gchar *
4222 empathy_chat_dup_text (EmpathyChat *self)
4223 {
4224         GtkTextBuffer *buffer;
4225         GtkTextIter     start, end;
4226
4227         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4228
4229         gtk_text_buffer_get_bounds (buffer, &start, &end);
4230         return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4231 }
4232
4233 void
4234 empathy_chat_set_text (EmpathyChat *self,
4235                        const gchar *text)
4236 {
4237         GtkTextBuffer *buffer;
4238
4239         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4240
4241         gtk_text_buffer_set_text (buffer, text, -1);
4242 }