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