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-individual-store-channel.h"
  53 #include "empathy-individual-view.h"
  54 #include "empathy-input-text-view.h"
  55 #include "empathy-search-bar.h"
  56 #include "empathy-theme-manager.h"
  57 #include "empathy-theme-adium.h"
  58 #include "empathy-smiley-manager.h"
  59 #include "empathy-ui-utils.h"
  60 #include "empathy-string-parser.h"
  61 #include "extensions/extensions.h"
  62
  63 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
  64 #include <libempathy/empathy-debug.h>
  65
  66 #define IS_ENTER(v) (v == GDK_KEY_Return || v == GDK_KEY_ISO_Enter || v == GDK_KEY_KP_Enter)
  67 #define COMPOSING_STOP_TIMEOUT 5
  68
  69 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChat)
  70 struct _EmpathyChatPriv {
  71         EmpathyTpChat     *tp_chat;
  72         TpAccount         *account;
  73         gchar             *id;
  74         gchar             *name;
  75         gchar             *subject;
  76         EmpathyContact    *remote_contact;
  77         gboolean           show_contacts;
  78
  79         GSettings         *gsettings_chat;
  80         GSettings         *gsettings_ui;
  81
  82         TplLogManager     *log_manager;
  83         TpAccountManager  *account_manager;
  84         GList             *input_history;
  85         GList             *input_history_current;
  86         GList             *compositors;
  87         GCompletion       *completion;
  88         guint              composing_stop_timeout_id;
  89         guint              block_events_timeout_id;
  90         TpHandleType       handle_type;
  91         gint               contacts_width;
  92         gboolean           has_input_vscroll;
  93
  94         /* TRUE if spell checking is enabled, FALSE otherwise.
  95          * This is to keep track of the last state of spell checking
  96          * when it changes. */
  97         gboolean           spell_checking_enabled;
  98
  99         /* These store the signal handler ids for the enclosed text entry. */
 100         gulong             insert_text_id;
 101         gulong             delete_range_id;
 102         gulong             notify_cursor_position_id;
 103
 104         /* Source func ID for update_misspelled_words () */
 105         guint              update_misspelled_words_id;
 106         /* Source func ID for save_paned_pos_timeout () */
 107         guint              save_paned_pos_id;
 108         /* Source func ID for chat_contacts_visible_timeout_cb () */
 109         guint              contacts_visible_id;
 110
 111         GtkWidget         *widget;
 112         GtkWidget         *hpaned;
 113         GtkWidget         *vbox_left;
 114         GtkWidget         *scrolled_window_chat;
 115         GtkWidget         *scrolled_window_input;
 116         GtkWidget         *scrolled_window_contacts;
 117         GtkWidget         *hbox_topic;
 118         GtkWidget         *expander_topic;
 119         GtkWidget         *label_topic;
 120         GtkWidget         *contact_list_view;
 121         GtkWidget         *info_bar_vbox;
 122         GtkWidget         *search_bar;
 123
 124         guint              unread_messages;
 125         guint              unread_messages_when_offline;
 126         /* TRUE if the pending messages can be displayed. This is to avoid to show
 127          * pending messages *before* messages from logs. (#603980) */
 128         gboolean           can_show_pending;
 129
 130         /* FIXME: retrieving_backlogs flag is a workaround for Bug#610994 and should
 131          * be differently handled since it introduces another race condition, which
 132          * is really hard to occur, but still possible.
 133          *
 134          * With the current workaround (which has the race above), we need to be
 135          * sure to ACK any pending messages only when the retrieval of backlogs is
 136          * finished, that's why using retrieving_backlogs flag.
 137          * empathy_chat_messages_read () will check this variable and not ACK
 138          * anything when TRUE. It will be set TRUE at chat_constructed () and set
 139          * back to FALSE when the backlog has been retrieved and the pending
 140          * messages actually showed to the user.
 141          *
 142          * Race condition introduced with this workaround:
 143          * Scenario: a message is pending, the user is notified and selects the tab.
 144          * the tab with a pending message is focused before the messages are properly
 145          * shown (since the preparation of the window is slower AND async WRT the
 146          * tab showing), which means the user won't see any new messages (rare but
 147          * possible), if he/she will change tab focus before the messages are
 148          * properly shown, the tab will be set as 'seen' and the user won't be
 149          * notified again about the already notified pending messages when the
 150          * messages in tab will be properly shown */
 151         gboolean           retrieving_backlogs;
 152         gboolean           sms_channel;
 153
 154         /* we need to know whether populate-popup happened in response to
 155          * the keyboard or the mouse. We can't ask GTK for the most recent
 156          * event, because it will be a notify event. Instead we track it here */
 157         GdkEventType       most_recent_event_type;
 158 };
 159
 160 typedef struct {
 161         gchar *text; /* Original message that was specified
 162                       * upon entry creation. */
 163         gchar *modified_text; /* Message that was modified by user.
 164                                * When no modifications were made, it is NULL */
 165 } InputHistoryEntry;
 166
 167 enum {
 168         COMPOSING,
 169         NEW_MESSAGE,
 170         PART_COMMAND_ENTERED,
 171         LAST_SIGNAL
 172 };
 173
 174 enum {
 175         PROP_0,
 176         PROP_TP_CHAT,
 177         PROP_ACCOUNT,
 178         PROP_ID,
 179         PROP_NAME,
 180         PROP_SUBJECT,
 181         PROP_REMOTE_CONTACT,
 182         PROP_SHOW_CONTACTS,
 183         PROP_SMS_CHANNEL,
 184         PROP_N_MESSAGES_SENDING,
 185         PROP_NB_UNREAD_MESSAGES,
 186 };
 187
 188 static guint signals[LAST_SIGNAL] = { 0 };
 189
 190 G_DEFINE_TYPE (EmpathyChat, empathy_chat, GTK_TYPE_BOX);
 191
 192 static gboolean update_misspelled_words (gpointer data);
 193
 194 static void
 195 chat_get_property (GObject    *object,
 196                    guint       param_id,
 197                    GValue     *value,
 198                    GParamSpec *pspec)
 199 {
 200         EmpathyChat *chat = EMPATHY_CHAT (object);
 201         EmpathyChatPriv *priv = GET_PRIV (object);
 202
 203         switch (param_id) {
 204         case PROP_TP_CHAT:
 205                 g_value_set_object (value, priv->tp_chat);
 206                 break;
 207         case PROP_ACCOUNT:
 208                 g_value_set_object (value, priv->account);
 209                 break;
 210         case PROP_NAME:
 211                 g_value_take_string (value, empathy_chat_dup_name (chat));
 212                 break;
 213         case PROP_ID:
 214                 g_value_set_string (value, priv->id);
 215                 break;
 216         case PROP_SUBJECT:
 217                 g_value_set_string (value, priv->subject);
 218                 break;
 219         case PROP_REMOTE_CONTACT:
 220                 g_value_set_object (value, priv->remote_contact);
 221                 break;
 222         case PROP_SHOW_CONTACTS:
 223                 g_value_set_boolean (value, priv->show_contacts);
 224                 break;
 225         case PROP_SMS_CHANNEL:
 226                 g_value_set_boolean (value, priv->sms_channel);
 227                 break;
 228         case PROP_N_MESSAGES_SENDING:
 229                 g_value_set_uint (value,
 230                         empathy_chat_get_n_messages_sending (chat));
 231                 break;
 232         case PROP_NB_UNREAD_MESSAGES:
 233                 g_value_set_uint (value,
 234                         empathy_chat_get_nb_unread_messages (chat));
 235                 break;
 236         default:
 237                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 238                 break;
 239         };
 240 }
 241
 242 static void
 243 chat_set_property (GObject      *object,
 244                    guint         param_id,
 245                    const GValue *value,
 246                    GParamSpec   *pspec)
 247 {
 248         EmpathyChat *chat = EMPATHY_CHAT (object);
 249
 250         switch (param_id) {
 251         case PROP_TP_CHAT:
 252                 empathy_chat_set_tp_chat (chat, EMPATHY_TP_CHAT (g_value_get_object (value)));
 253                 break;
 254         case PROP_SHOW_CONTACTS:
 255                 empathy_chat_set_show_contacts (chat, g_value_get_boolean (value));
 256                 break;
 257         default:
 258                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 259                 break;
 260         };
 261 }
 262
 263 static void
 264 account_reconnected (EmpathyChat *chat,
 265                         TpAccount *account)
 266 {
 267         EmpathyChatPriv *priv = GET_PRIV (chat);
 268
 269         DEBUG ("Account reconnected, request a new Text channel");
 270
 271         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 272         * report the error if any but this is blocked by
 273         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 274         switch (priv->handle_type) {
 275                 case TP_HANDLE_TYPE_CONTACT:
 276                         if (priv->sms_channel)
 277                                 empathy_sms_contact_id (
 278                                         account, priv->id,
 279                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 280                                         NULL, NULL);
 281                         else
 282                                 empathy_chat_with_contact_id (
 283                                         account, priv->id,
 284                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 285                                         NULL, NULL);
 286                         break;
 287                 case TP_HANDLE_TYPE_ROOM:
 288                         empathy_join_muc (account, priv->id,
 289                                 TP_USER_ACTION_TIME_NOT_USER_ACTION);
 290                         break;
 291                 case TP_HANDLE_TYPE_NONE:
 292                 case TP_HANDLE_TYPE_LIST:
 293                 case TP_HANDLE_TYPE_GROUP:
 294                 default:
 295                         g_assert_not_reached ();
 296                         break;
 297         }
 298
 299         g_object_unref (chat);
 300 }
 301
 302 static void
 303 chat_new_connection_cb (TpAccount   *account,
 304                         guint        old_status,
 305                         guint        new_status,
 306                         guint        reason,
 307                         gchar       *dbus_error_name,
 308                         GHashTable  *details,
 309                         EmpathyChat *chat)
 310 {
 311         EmpathyChatPriv *priv = GET_PRIV (chat);
 312
 313         if (new_status != TP_CONNECTION_STATUS_CONNECTED)
 314                 return;
 315
 316         if (priv->tp_chat != NULL || account != priv->account ||
 317             priv->handle_type == TP_HANDLE_TYPE_NONE ||
 318             EMP_STR_EMPTY (priv->id))
 319                 return;
 320
 321         g_object_ref (chat);
 322
 323         account_reconnected (chat, account);
 324 }
 325
 326 static void
 327 chat_composing_remove_timeout (EmpathyChat *chat)
 328 {
 329         EmpathyChatPriv *priv;
 330
 331         priv = GET_PRIV (chat);
 332
 333         if (priv->composing_stop_timeout_id) {
 334                 g_source_remove (priv->composing_stop_timeout_id);
 335                 priv->composing_stop_timeout_id = 0;
 336         }
 337 }
 338
 339 static void
 340 set_chate_state_cb (GObject *source,
 341                     GAsyncResult *result,
 342                     gpointer user_data)
 343 {
 344         GError *error = NULL;
 345
 346         if (!tp_text_channel_set_chat_state_finish (TP_TEXT_CHANNEL (source), result,
 347                 &error)) {
 348                 DEBUG ("Failed to set chat state: %s", error->message);
 349                 g_error_free (error);
 350         }
 351 }
 352
 353 static void
 354 set_chat_state (EmpathyChat *self,
 355                 TpChannelChatState state)
 356 {
 357         EmpathyChatPriv *priv = GET_PRIV (self);
 358
 359         if (!tp_proxy_has_interface_by_id (priv->tp_chat,
 360                 TP_IFACE_QUARK_CHANNEL_INTERFACE_CHAT_STATE))
 361                 return;
 362
 363         tp_text_channel_set_chat_state_async (TP_TEXT_CHANNEL (priv->tp_chat), state,
 364                 set_chate_state_cb, self);
 365 }
 366
 367 static gboolean
 368 chat_composing_stop_timeout_cb (EmpathyChat *chat)
 369 {
 370         EmpathyChatPriv *priv;
 371
 372         priv = GET_PRIV (chat);
 373
 374         priv->composing_stop_timeout_id = 0;
 375         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_PAUSED);
 376
 377         return FALSE;
 378 }
 379
 380 static void
 381 chat_composing_start (EmpathyChat *chat)
 382 {
 383         EmpathyChatPriv *priv;
 384
 385         priv = GET_PRIV (chat);
 386
 387         if (priv->composing_stop_timeout_id) {
 388                 /* Just restart the timeout */
 389                 chat_composing_remove_timeout (chat);
 390         } else {
 391                 set_chat_state (chat, TP_CHANNEL_CHAT_STATE_COMPOSING);
 392         }
 393
 394         priv->composing_stop_timeout_id = g_timeout_add_seconds (
 395                 COMPOSING_STOP_TIMEOUT,
 396                 (GSourceFunc) chat_composing_stop_timeout_cb,
 397                 chat);
 398 }
 399
 400 static void
 401 chat_composing_stop (EmpathyChat *chat)
 402 {
 403         chat_composing_remove_timeout (chat);
 404         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_ACTIVE);
 405 }
 406
 407 static gint
 408 chat_input_history_entry_cmp (InputHistoryEntry *entry,
 409                               const gchar *text)
 410 {
 411         if (!tp_strdiff (entry->text, text)) {
 412                 if (entry->modified_text != NULL) {
 413                         /* Modified entry and single string cannot be equal. */
 414                         return 1;
 415                 }
 416                 return 0;
 417         }
 418         return 1;
 419 }
 420
 421 static InputHistoryEntry *
 422 chat_input_history_entry_new_with_text (const gchar *text)
 423 {
 424         InputHistoryEntry *entry;
 425         entry = g_slice_new0 (InputHistoryEntry);
 426         entry->text = g_strdup (text);
 427
 428         return entry;
 429 }
 430
 431 static void
 432 chat_input_history_entry_free (InputHistoryEntry *entry)
 433 {
 434         g_free (entry->text);
 435         g_free (entry->modified_text);
 436         g_slice_free (InputHistoryEntry, entry);
 437 }
 438
 439 static void
 440 chat_input_history_entry_revert (InputHistoryEntry *entry)
 441 {
 442         g_free (entry->modified_text);
 443         entry->modified_text = NULL;
 444 }
 445
 446 static void
 447 chat_input_history_entry_update_text (InputHistoryEntry *entry,
 448                                       const gchar *text)
 449 {
 450         gchar *old;
 451
 452         if (!tp_strdiff (text, entry->text)) {
 453                 g_free (entry->modified_text);
 454                 entry->modified_text = NULL;
 455                 return;
 456         }
 457
 458         old = entry->modified_text;
 459         entry->modified_text = g_strdup (text);
 460         g_free (old);
 461 }
 462
 463 static const gchar *
 464 chat_input_history_entry_get_text (InputHistoryEntry *entry)
 465 {
 466         if (entry == NULL) {
 467                 return NULL;
 468         }
 469
 470         if (entry->modified_text != NULL) {
 471                 return entry->modified_text;
 472         }
 473         return entry->text;
 474 }
 475
 476 static GList *
 477 chat_input_history_remove_item (GList *list,
 478                                 GList *item)
 479 {
 480         list = g_list_remove_link (list, item);
 481         chat_input_history_entry_free (item->data);
 482         g_list_free_1 (item);
 483         return list;
 484 }
 485
 486 static void
 487 chat_input_history_revert (EmpathyChat *chat)
 488 {
 489         EmpathyChatPriv   *priv;
 490         GList             *list;
 491         GList             *item1;
 492         GList             *item2;
 493         InputHistoryEntry *entry;
 494
 495         priv = GET_PRIV (chat);
 496         list = priv->input_history;
 497
 498         if (list == NULL) {
 499                 DEBUG ("No input history");
 500                 return;
 501         }
 502
 503         /* Delete temporary entry */
 504         if (priv->input_history_current != NULL) {
 505                 item1 = list;
 506                 list = chat_input_history_remove_item (list, item1);
 507                 if (priv->input_history_current == item1) {
 508                         /* Removed temporary entry was current entry */
 509                         priv->input_history = list;
 510                         priv->input_history_current = NULL;
 511                         return;
 512                 }
 513         }
 514         else {
 515                 /* There is no entry to revert */
 516                 return;
 517         }
 518
 519         /* Restore the current history entry to original value */
 520         item1 = priv->input_history_current;
 521         entry = item1->data;
 522         chat_input_history_entry_revert (entry);
 523
 524         /* Remove restored entry if there is other occurance before this entry */
 525         item2 = g_list_find_custom (list, chat_input_history_entry_get_text (entry),
 526                                     (GCompareFunc) chat_input_history_entry_cmp);
 527         if (item2 != item1) {
 528                 list = chat_input_history_remove_item (list, item1);
 529         }
 530         else {
 531                 /* Remove other occurance of the restored entry */
 532                 item2 = g_list_find_custom (item1->next,
 533                                             chat_input_history_entry_get_text (entry),
 534                                             (GCompareFunc) chat_input_history_entry_cmp);
 535                 if (item2 != NULL) {
 536                         list = chat_input_history_remove_item (list, item2);
 537                 }
 538         }
 539
 540         priv->input_history_current = NULL;
 541         priv->input_history = list;
 542 }
 543
 544 static void
 545 chat_input_history_add (EmpathyChat  *chat,
 546                         const gchar *str,
 547                         gboolean temporary)
 548 {
 549         EmpathyChatPriv   *priv;
 550         GList             *list;
 551         GList             *item;
 552         InputHistoryEntry *entry;
 553
 554         priv = GET_PRIV (chat);
 555
 556         list = priv->input_history;
 557
 558         /* Remove any other occurances of this entry, if not temporary */
 559         if (!temporary) {
 560                 while ((item = g_list_find_custom (list, str,
 561                     (GCompareFunc) chat_input_history_entry_cmp)) != NULL) {
 562                         list = chat_input_history_remove_item (list, item);
 563                 }
 564
 565                 /* Trim the list to the last 10 items */
 566                 while (g_list_length (list) > 10) {
 567                         item = g_list_last (list);
 568                         if (item != NULL) {
 569                                 list = chat_input_history_remove_item (list, item);
 570                         }
 571                 }
 572         }
 573
 574
 575
 576         /* Add new entry */
 577         entry = chat_input_history_entry_new_with_text (str);
 578         list = g_list_prepend (list, entry);
 579
 580         /* Set the list and the current item pointer */
 581         priv->input_history = list;
 582         if (temporary) {
 583                 priv->input_history_current = list;
 584         }
 585         else {
 586                 priv->input_history_current = NULL;
 587         }
 588 }
 589
 590 static const gchar *
 591 chat_input_history_get_next (EmpathyChat *chat)
 592 {
 593         EmpathyChatPriv *priv;
 594         GList           *item;
 595         const gchar     *msg;
 596
 597         priv = GET_PRIV (chat);
 598
 599         if (priv->input_history == NULL) {
 600                 DEBUG ("No input history, next entry is NULL");
 601                 return NULL;
 602         }
 603         g_assert (priv->input_history_current != NULL);
 604
 605         if ((item = g_list_next (priv->input_history_current)) == NULL)
 606         {
 607                 item = priv->input_history_current;
 608         }
 609
 610         msg = chat_input_history_entry_get_text (item->data);
 611
 612         DEBUG ("Returning next entry: '%s'", msg);
 613
 614         priv->input_history_current = item;
 615
 616         return msg;
 617 }
 618
 619 static const gchar *
 620 chat_input_history_get_prev (EmpathyChat *chat)
 621 {
 622         EmpathyChatPriv *priv;
 623         GList           *item;
 624         const gchar     *msg;
 625
 626         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 627
 628         priv = GET_PRIV (chat);
 629
 630         if (priv->input_history == NULL) {
 631                 DEBUG ("No input history, previous entry is NULL");
 632                 return NULL;
 633         }
 634
 635         if (priv->input_history_current == NULL)
 636         {
 637                 return NULL;
 638         }
 639         else if ((item = g_list_previous (priv->input_history_current)) == NULL)
 640         {
 641                 item = priv->input_history_current;
 642         }
 643
 644         msg = chat_input_history_entry_get_text (item->data);
 645
 646         DEBUG ("Returning previous entry: '%s'", msg);
 647
 648         priv->input_history_current = item;
 649
 650         return msg;
 651 }
 652
 653 static void
 654 chat_input_history_update (EmpathyChat *chat,
 655                            GtkTextBuffer *buffer)
 656 {
 657         EmpathyChatPriv      *priv;
 658         GtkTextIter           start, end;
 659         gchar                *text;
 660         InputHistoryEntry    *entry;
 661
 662         priv = GET_PRIV (chat);
 663
 664         gtk_text_buffer_get_bounds (buffer, &start, &end);
 665         text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 666
 667         if (priv->input_history_current == NULL) {
 668                 /* Add the current text temporarily to the history */
 669                 chat_input_history_add (chat, text, TRUE);
 670                 g_free (text);
 671                 return;
 672         }
 673
 674         /* Save the changes in the history */
 675         entry = priv->input_history_current->data;
 676         if (tp_strdiff (chat_input_history_entry_get_text (entry), text)) {
 677                 chat_input_history_entry_update_text (entry, text);
 678         }
 679
 680         g_free (text);
 681 }
 682
 683 typedef struct {
 684         EmpathyChat *chat;
 685         gchar *message;
 686 } ChatCommandMsgData;
 687
 688 static void
 689 chat_command_msg_cb (GObject *source,
 690                               GAsyncResult *result,
 691                               gpointer                  user_data)
 692 {
 693         ChatCommandMsgData *data = user_data;
 694         GError *error = NULL;
 695         TpChannel *channel;
 696
 697         channel = tp_account_channel_request_ensure_and_observe_channel_finish (
 698                                         TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error);
 699
 700         if (channel == NULL) {
 701                 DEBUG ("Failed to get channel: %s", error->message);
 702                 g_error_free (error);
 703
 704                 empathy_chat_view_append_event (data->chat->view,
 705                         _("Failed to open private chat"));
 706                 goto OUT;
 707         }
 708
 709         if (!EMP_STR_EMPTY (data->message) && TP_IS_TEXT_CHANNEL (channel)) {
 710                 TpTextChannel *text = (TpTextChannel *) channel;
 711                 TpMessage *msg;
 712
 713                 msg = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 714                         data->message);
 715
 716                 tp_text_channel_send_message_async (text, msg, 0, NULL, NULL);
 717
 718                 g_object_unref (msg);
 719         }
 720
 721         g_object_unref (channel);
 722
 723 OUT:
 724         g_free (data->message);
 725         g_slice_free (ChatCommandMsgData, data);
 726 }
 727
 728 static gboolean
 729 nick_command_supported (EmpathyChat *chat)
 730 {
 731         EmpathyChatPriv * priv = GET_PRIV (chat);
 732         TpConnection    *connection;
 733
 734         connection = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
 735         return tp_proxy_has_interface_by_id (connection,
 736                 EMP_IFACE_QUARK_CONNECTION_INTERFACE_RENAMING);
 737 }
 738
 739 static gboolean
 740 part_command_supported (EmpathyChat *chat)
 741 {
 742         EmpathyChatPriv * priv = GET_PRIV (chat);
 743
 744         return tp_proxy_has_interface_by_id (priv->tp_chat,
 745                         TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);
 746 }
 747
 748 static void
 749 chat_command_clear (EmpathyChat *chat,
 750                     GStrv        strv)
 751 {
 752         empathy_chat_view_clear (chat->view);
 753 }
 754
 755 static void
 756 chat_command_topic (EmpathyChat *chat,
 757                     GStrv        strv)
 758 {
 759         EmpathyChatPriv *priv = GET_PRIV (chat);
 760
 761         if (!empathy_tp_chat_supports_subject (priv->tp_chat)) {
 762                 empathy_chat_view_append_event (chat->view,
 763                         _("Topic not supported on this conversation"));
 764                 return;
 765         }
 766
 767         if (!empathy_tp_chat_can_set_subject (priv->tp_chat)) {
 768                 empathy_chat_view_append_event (chat->view,
 769                         _("You are not allowed to change the topic"));
 770                 return;
 771         }
 772
 773         empathy_tp_chat_set_subject (priv->tp_chat, strv[1]);
 774 }
 775
 776 void
 777 empathy_chat_join_muc (EmpathyChat *chat,
 778                    const gchar   *room)
 779 {
 780         EmpathyChatPriv *priv = GET_PRIV (chat);
 781
 782         empathy_join_muc (priv->account, room,
 783                 empathy_get_current_action_time ());
 784 }
 785
 786 static void
 787 chat_command_join (EmpathyChat *chat,
 788                    GStrv        strv)
 789 {
 790         guint i = 0;
 791
 792         GStrv rooms = g_strsplit_set (strv[1], ", ", -1);
 793
 794         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 795         * report the error if any but this is blocked by
 796         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 797         while (rooms[i] != NULL) {
 798                 /* ignore empty strings */
 799                 if (!EMP_STR_EMPTY (rooms[i])) {
 800                         empathy_chat_join_muc (chat, rooms[i]);
 801                 }
 802                 i++;
 803         }
 804         g_strfreev (rooms);
 805 }
 806
 807 static void
 808 chat_command_part (EmpathyChat *chat,
 809                            GStrv        strv)
 810 {
 811         g_signal_emit (chat, signals[PART_COMMAND_ENTERED], 0, strv);
 812 }
 813
 814 static void
 815 chat_command_msg_internal (EmpathyChat *chat,
 816                            const gchar *contact_id,
 817                            const gchar *message)
 818 {
 819         EmpathyChatPriv *priv = GET_PRIV (chat);
 820         ChatCommandMsgData *data;
 821         TpAccountChannelRequest *req;
 822         GHashTable *request;
 823
 824         request = tp_asv_new (
 825                 TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_TEXT,
 826                 TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 827                 TP_PROP_CHANNEL_TARGET_ID, G_TYPE_STRING, contact_id,
 828                 NULL);
 829
 830         req = tp_account_channel_request_new (priv->account, request,
 831                 empathy_get_current_action_time ());
 832
 833         /* FIXME: We should probably search in members alias. But this
 834          * is enough for IRC */
 835         data = g_slice_new (ChatCommandMsgData);
 836         data->chat = chat;
 837         data->message = g_strdup (message);
 838
 839         tp_account_channel_request_ensure_and_observe_channel_async (req,
 840                 EMPATHY_CHAT_BUS_NAME, NULL, chat_command_msg_cb, data);
 841
 842         g_object_unref (req);
 843         g_hash_table_unref (request);
 844 }
 845
 846 static void
 847 chat_command_query (EmpathyChat *chat,
 848                     GStrv        strv)
 849 {
 850         /* If <message> part is not defined,
 851          * strv[2] will be the terminal NULL */
 852         chat_command_msg_internal (chat, strv[1], strv[2]);
 853 }
 854
 855 static void
 856 chat_command_msg (EmpathyChat *chat,
 857                   GStrv        strv)
 858 {
 859         chat_command_msg_internal (chat, strv[1], strv[2]);
 860 }
 861
 862 static void
 863 callback_for_request_rename (TpProxy *proxy,
 864                   const GError *error,
 865                   gpointer user_data,
 866                   GObject *weak_object)
 867 {
 868         if (error != NULL) {
 869                 DEBUG ("Call to RequestRename method failed: %s",error->message);
 870         }
 871 }
 872
 873 static void
 874 chat_command_nick (EmpathyChat *chat,
 875                    GStrv        strv)
 876 {
 877         EmpathyChatPriv *priv = GET_PRIV (chat);
 878         TpProxy *proxy;
 879
 880         proxy = TP_PROXY (tp_account_get_connection (priv->account));
 881
 882         emp_cli_connection_interface_renaming_call_request_rename (proxy, -1,
 883                 strv[1], callback_for_request_rename, NULL, NULL, NULL);
 884 }
 885
 886 static void
 887 chat_command_me (EmpathyChat *chat,
 888                   GStrv        strv)
 889 {
 890         EmpathyChatPriv *priv = GET_PRIV (chat);
 891         TpMessage *message;
 892         TpTextChannel *channel;
 893
 894         channel = (TpTextChannel *) (priv->tp_chat);
 895
 896         if (!tp_text_channel_supports_message_type (channel,
 897                         TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION)) {
 898                 /* Action message are not supported, 'simulate' the action */
 899                 EmpathyContact *self_contact;
 900                 gchar *tmp;
 901
 902                 self_contact = empathy_tp_chat_get_self_contact (priv->tp_chat);
 903                 /* The TpChat can't be ready if it doesn't have the self contact */
 904                 g_assert (self_contact != NULL);
 905
 906                 tmp = g_strdup_printf ("%s %s", empathy_contact_get_alias (self_contact),
 907                         strv[1]);
 908                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 909                         tmp);
 910                 g_free (tmp);
 911         }
 912         else {
 913                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION,
 914                         strv[1]);
 915         }
 916
 917         empathy_tp_chat_send (priv->tp_chat, message);
 918         g_object_unref (message);
 919 }
 920
 921 static void
 922 chat_command_say (EmpathyChat *chat,
 923                   GStrv        strv)
 924 {
 925         EmpathyChatPriv *priv = GET_PRIV (chat);
 926         TpMessage *message;
 927
 928         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 929                 strv[1]);
 930         empathy_tp_chat_send (priv->tp_chat, message);
 931         g_object_unref (message);
 932 }
 933
 934 static void
 935 whois_got_contact_cb (TpConnection *connection,
 936                       guint n_contacts,
 937                       TpContact * const *contacts,
 938                       const gchar * const *requested_ids,
 939                       GHashTable *failed_id_errors,
 940                       const GError *error,
 941                       gpointer user_data,
 942                       GObject *weak_object)
 943 {
 944         EmpathyChat *chat = EMPATHY_CHAT (weak_object);
 945
 946         g_return_if_fail (n_contacts <= 1);
 947
 948         if (n_contacts == 0) {
 949                 GHashTableIter iter;
 950                 gpointer key = NULL, value = NULL;
 951                 gchar *id;
 952                 GError *id_error;
 953
 954                 /* tp-glib guarantees that the contacts you requested will be
 955                  * in failed_id_errors regardless of whether the individual
 956                  * contact was invalid or the whole operation failed.
 957                  */
 958                 g_hash_table_iter_init (&iter, failed_id_errors);
 959                 g_hash_table_iter_next (&iter, &key, &value);
 960                 id = key;
 961                 id_error = value;
 962
 963                 DEBUG ("Error getting TpContact for '%s': %s %u %s",
 964                         id, g_quark_to_string (id_error->domain),
 965                         id_error->code, id_error->message);
 966
 967                 if (error == NULL) {
 968                         /* The specific ID failed. */
 969                         gchar *event = g_strdup_printf (
 970                                 _("“%s” is not a valid contact ID"), id);
 971                         empathy_chat_view_append_event (chat->view, event);
 972                         g_free (event);
 973                 }
 974                 /* Otherwise we're disconnected or something; so the window
 975                  * will already say ‘Disconnected’, so let's not show anything.
 976                  */
 977         } else {
 978                 EmpathyContact *empathy_contact;
 979                 GtkWidget *window;
 980
 981                 g_return_if_fail (contacts[0] != NULL);
 982                 empathy_contact = empathy_contact_dup_from_tp_contact (
 983                         contacts[0]);
 984
 985                 window = gtk_widget_get_toplevel (GTK_WIDGET (chat));
 986                 /* If we're alive and this command is running, we'd better be
 987                  * in a window. */
 988                 g_return_if_fail (window != NULL);
 989                 g_return_if_fail (gtk_widget_is_toplevel (window));
 990                 empathy_contact_information_dialog_show (empathy_contact,
 991                         GTK_WINDOW (window));
 992                 g_object_unref (empathy_contact);
 993         }
 994 }
 995
 996 static void
 997 chat_command_whois (EmpathyChat *chat,
 998                     GStrv strv)
 999 {
1000         EmpathyChatPriv *priv = GET_PRIV (chat);
1001         TpConnection *conn;
1002
1003         conn = tp_channel_borrow_connection ((TpChannel *) priv->tp_chat);
1004         tp_connection_get_contacts_by_id (conn,
1005                 /* Element 0 of 'strv' is "whois"; element 1 is the contact ID
1006                  * entered by the user (including spaces, if any). */
1007                 1, (const gchar * const *) strv + 1,
1008                 0, NULL,
1009                 whois_got_contact_cb, NULL, NULL, G_OBJECT (chat));
1010 }
1011
1012 static void
1013 chat_command_whale (EmpathyChat *chat,
1014                     GStrv        strv)
1015 {
1016         EmpathyChatPriv *priv = GET_PRIV (chat);
1017         TpMessage *message;
1018
1019         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1020                 "\n\n\n"
1021                 "•_______________•");
1022         empathy_tp_chat_send (priv->tp_chat, message);
1023         g_object_unref (message);
1024 }
1025
1026 static void
1027 chat_command_babywhale (EmpathyChat *chat,
1028                         GStrv        strv)
1029 {
1030         EmpathyChatPriv *priv = GET_PRIV (chat);
1031         TpMessage *message;
1032
1033         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1034                 "\n"
1035                 "•_____•");
1036         empathy_tp_chat_send (priv->tp_chat, message);
1037         g_object_unref (message);
1038 }
1039
1040 static void
1041 chat_command_inspector (EmpathyChat *chat,
1042                     GStrv        strv)
1043 {
1044         if (EMPATHY_IS_THEME_ADIUM (chat->view)) {
1045                 empathy_theme_adium_show_inspector (
1046                         EMPATHY_THEME_ADIUM (chat->view));
1047         }
1048 }
1049
1050 static void chat_command_help (EmpathyChat *chat, GStrv strv);
1051
1052 typedef void (*ChatCommandFunc) (EmpathyChat *chat, GStrv strv);
1053
1054 typedef struct {
1055         const gchar *prefix;
1056         guint min_parts;
1057         guint max_parts;
1058         ChatCommandFunc func;
1059         gboolean (*is_supported)(EmpathyChat *chat);
1060         const gchar *help;
1061 } ChatCommandItem;
1062
1063 static ChatCommandItem commands[] = {
1064         {"clear", 1, 1, chat_command_clear, NULL,
1065          N_("/clear: clear all messages from the current conversation")},
1066
1067         {"topic", 2, 2, chat_command_topic, NULL,
1068          N_("/topic <topic>: set the topic of the current conversation")},
1069
1070         {"join", 2, 2, chat_command_join, NULL,
1071          N_("/join <chat room ID>: join a new chat room")},
1072
1073         {"j", 2, 2, chat_command_join, NULL,
1074          N_("/j <chat room ID>: join a new chat room")},
1075
1076         /* FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=643295 */
1077         {"part", 1, 3, chat_command_part, part_command_supported,
1078          N_("/part [<chat room ID>] [<reason>]: leave the chat room, "
1079             "by default the current one")},
1080
1081         {"query", 2, 3, chat_command_query, NULL,
1082          N_("/query <contact ID> [<message>]: open a private chat")},
1083
1084         {"msg", 3, 3, chat_command_msg, NULL,
1085          N_("/msg <contact ID> <message>: open a private chat")},
1086
1087         {"nick", 2, 2, chat_command_nick, nick_command_supported,
1088          N_("/nick <nickname>: change your nickname on the current server")},
1089
1090         {"me", 2, 2, chat_command_me, NULL,
1091          N_("/me <message>: send an ACTION message to the current conversation")},
1092
1093         {"say", 2, 2, chat_command_say, NULL,
1094          N_("/say <message>: send <message> to the current conversation. "
1095             "This is used to send a message starting with a '/'. For example: "
1096             "\"/say /join is used to join a new chat room\"")},
1097
1098         {"whois", 2, 2, chat_command_whois, NULL,
1099          N_("/whois <contact ID>: display information about a contact")},
1100
1101         {"help", 1, 2, chat_command_help, NULL,
1102          N_("/help [<command>]: show all supported commands. "
1103             "If <command> is defined, show its usage.")},
1104
1105         {"inspector", 1, 1, chat_command_inspector, NULL, NULL},
1106
1107         {"whale", 1, 1, chat_command_whale, NULL, NULL},
1108         {"babywhale", 1, 1, chat_command_babywhale, NULL, NULL},
1109 };
1110
1111 static void
1112 chat_command_show_help (EmpathyChat     *chat,
1113                         ChatCommandItem *item)
1114 {
1115         gchar *str;
1116
1117         if (item->help == NULL) {
1118                 return;
1119         }
1120
1121         str = g_strdup_printf (_("Usage: %s"), _(item->help));
1122         empathy_chat_view_append_event (chat->view, str);
1123         g_free (str);
1124 }
1125
1126 static void
1127 chat_command_help (EmpathyChat *chat,
1128                    GStrv        strv)
1129 {
1130         guint i;
1131
1132         /* If <command> part is not defined,
1133          * strv[1] will be the terminal NULL */
1134         if (strv[1] == NULL) {
1135                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1136                         if (commands[i].is_supported != NULL) {
1137                                 if (!commands[i].is_supported (chat)) {
1138                                         continue;
1139                                 }
1140                         }
1141                         if (commands[i].help == NULL) {
1142                                 continue;
1143                         }
1144                         empathy_chat_view_append_event (chat->view,
1145                                 _(commands[i].help));
1146                 }
1147                 return;
1148         }
1149
1150         for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1151                 if (g_ascii_strcasecmp (strv[1], commands[i].prefix) == 0) {
1152                         if (commands[i].is_supported != NULL) {
1153                                 if (!commands[i].is_supported (chat)) {
1154                                         break;
1155                                 }
1156                         }
1157                         if (commands[i].help == NULL) {
1158                                 break;
1159                         }
1160                         chat_command_show_help (chat, &commands[i]);
1161                         return;
1162                 }
1163         }
1164
1165         empathy_chat_view_append_event (chat->view,
1166                 _("Unknown command"));
1167 }
1168
1169 static GStrv
1170 chat_command_parse (const gchar *text, guint max_parts)
1171 {
1172         GPtrArray *array;
1173         gchar *item;
1174
1175         DEBUG ("Parse command, parts=%d text=\"%s\":", max_parts, text);
1176
1177         array = g_ptr_array_sized_new (max_parts + 1);
1178         while (max_parts > 1) {
1179                 const gchar *end;
1180
1181                 /* Skip white spaces */
1182                 while (g_ascii_isspace (*text)) {
1183                         text++;
1184                 }
1185
1186                 /* Search the end of this part, until first space. */
1187                 for (end = text; *end != '\0' && !g_ascii_isspace (*end); end++)
1188                         /* Do nothing */;
1189                 if (*end == '\0') {
1190                         break;
1191                 }
1192
1193                 item = g_strndup (text, end - text);
1194                 g_ptr_array_add (array, item);
1195                 DEBUG ("\tITEM: \"%s\"", item);
1196
1197                 text = end;
1198                 max_parts--;
1199         }
1200
1201         /* Append last part if not empty */
1202         item = g_strstrip (g_strdup (text));
1203         if (!EMP_STR_EMPTY (item)) {
1204                 g_ptr_array_add (array, item);
1205                 DEBUG ("\tITEM: \"%s\"", item);
1206         } else {
1207                 g_free (item);
1208         }
1209
1210         /* Make the array NULL-terminated */
1211         g_ptr_array_add (array, NULL);
1212
1213         return (GStrv) g_ptr_array_free (array, FALSE);
1214 }
1215
1216 static gboolean
1217 has_prefix_case (const gchar *s,
1218                   const gchar *prefix)
1219 {
1220         return g_ascii_strncasecmp (s, prefix, strlen (prefix)) == 0;
1221 }
1222
1223 static void
1224 chat_send (EmpathyChat  *chat,
1225            const gchar *msg)
1226 {
1227         EmpathyChatPriv *priv;
1228         TpMessage  *message;
1229         guint            i;
1230
1231         if (EMP_STR_EMPTY (msg)) {
1232                 return;
1233         }
1234
1235         priv = GET_PRIV (chat);
1236
1237         chat_input_history_add (chat, msg, FALSE);
1238
1239         if (msg[0] == '/') {
1240                 gboolean second_slash = FALSE;
1241                 const gchar *iter = msg + 1;
1242
1243                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1244                         GStrv strv;
1245                         guint strv_len;
1246                         gchar c;
1247
1248                         if (!has_prefix_case (msg + 1, commands[i].prefix)) {
1249                                 continue;
1250                         }
1251                         c = *(msg + 1 + strlen (commands[i].prefix));
1252                         if (c != '\0' && !g_ascii_isspace (c)) {
1253                                 continue;
1254                         }
1255                         if (commands[i].is_supported != NULL) {
1256                                 if (!commands[i].is_supported (chat)) {
1257                                         continue;
1258                                 }
1259                         }
1260
1261                         /* We can't use g_strsplit here because it does
1262                          * not deal correctly if we have more than one space
1263                          * between args */
1264                         strv = chat_command_parse (msg + 1, commands[i].max_parts);
1265
1266                         strv_len = g_strv_length (strv);
1267                         if (strv_len < commands[i].min_parts ||
1268                             strv_len > commands[i].max_parts) {
1269                                 chat_command_show_help (chat, &commands[i]);
1270                                 g_strfreev (strv);
1271                                 return;
1272                         }
1273
1274                         commands[i].func (chat, strv);
1275                         g_strfreev (strv);
1276                         return;
1277                 }
1278
1279                 /* Also allow messages with two slashes before the
1280                  * first space, so it is possible to send a /unix/path.
1281                  * This heuristic is kind of crap. */
1282                 while (*iter != '\0' && !g_ascii_isspace (*iter)) {
1283                         if (*iter == '/') {
1284                                 second_slash = TRUE;
1285                                 break;
1286                         }
1287                         iter++;
1288                 }
1289
1290                 if (!second_slash) {
1291                         empathy_chat_view_append_event (chat->view,
1292                                 _("Unknown command; see /help for the available"
1293                                   " commands"));
1294                         return;
1295                 }
1296         }
1297
1298         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1299                 msg);
1300         empathy_tp_chat_send (priv->tp_chat, message);
1301         g_object_unref (message);
1302 }
1303
1304 static void
1305 chat_input_text_view_send (EmpathyChat *chat)
1306 {
1307         GtkTextBuffer  *buffer;
1308         GtkTextIter     start, end;
1309         gchar          *msg;
1310
1311         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1312
1313         gtk_text_buffer_get_bounds (buffer, &start, &end);
1314         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1315
1316         /* clear the input field */
1317         gtk_text_buffer_set_text (buffer, "", -1);
1318         /* delete input history modifications */
1319         chat_input_history_revert (chat);
1320
1321         chat_send (chat, msg);
1322         g_free (msg);
1323 }
1324
1325 static void
1326 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
1327                        EmpathyContact     *contact,
1328                        TpChannelChatState  state,
1329                        EmpathyChat        *chat)
1330 {
1331         EmpathyChatPriv *priv;
1332         GList          *l;
1333         gboolean        was_composing;
1334
1335         priv = GET_PRIV (chat);
1336
1337         if (empathy_contact_is_user (contact)) {
1338                 /* We don't care about our own chat state */
1339                 return;
1340         }
1341
1342         was_composing = (priv->compositors != NULL);
1343
1344         /* Find the contact in the list. After that l is the list elem or NULL */
1345         for (l = priv->compositors; l; l = l->next) {
1346                 if (contact == l->data) {
1347                         break;
1348                 }
1349         }
1350
1351         switch (state) {
1352         case TP_CHANNEL_CHAT_STATE_GONE:
1353         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1354         case TP_CHANNEL_CHAT_STATE_PAUSED:
1355         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1356                 /* Contact is not composing */
1357                 if (l) {
1358                         priv->compositors = g_list_remove_link (priv->compositors, l);
1359                         g_object_unref (l->data);
1360                         g_list_free1 (l);
1361                 }
1362                 break;
1363         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1364                 /* Contact is composing */
1365                 if (!l) {
1366                         priv->compositors = g_list_prepend (priv->compositors,
1367                                                             g_object_ref (contact));
1368                 }
1369                 break;
1370         default:
1371                 g_assert_not_reached ();
1372         }
1373
1374         DEBUG ("Was composing: %s now composing: %s",
1375                 was_composing ? "yes" : "no",
1376                 priv->compositors ? "yes" : "no");
1377
1378         if ((was_composing && !priv->compositors) ||
1379             (!was_composing && priv->compositors)) {
1380                 /* Composing state changed */
1381                 g_signal_emit (chat, signals[COMPOSING], 0,
1382                                priv->compositors != NULL);
1383         }
1384 }
1385
1386 static GRegex *
1387 get_highlight_regex_for (const gchar *name)
1388 {
1389         GRegex *regex;
1390         gchar *name_esc, *pattern;
1391         GError *error = NULL;
1392
1393         name_esc = g_regex_escape_string (name, -1);
1394         pattern = g_strdup_printf ("\\b%s\\b", name_esc);
1395         regex = g_regex_new (pattern, G_REGEX_CASELESS | G_REGEX_OPTIMIZE, 0,
1396                 &error);
1397
1398         if (regex == NULL) {
1399                 DEBUG ("couldn't compile regex /%s/: %s", pattern,
1400                         error->message);
1401
1402                 g_error_free (error);
1403         }
1404
1405         g_free (pattern);
1406         g_free (name_esc);
1407
1408         return regex;
1409 }
1410
1411 static gboolean
1412 chat_should_highlight (EmpathyChat *chat,
1413         EmpathyMessage *message)
1414 {
1415         EmpathyContact *contact;
1416         const gchar   *msg, *to;
1417         gboolean       ret_val = FALSE;
1418         TpChannelTextMessageFlags flags;
1419         GRegex *regex;
1420
1421         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1422
1423         if (!empathy_chat_is_room (chat)) {
1424                 return FALSE;
1425         }
1426
1427         if (!empathy_message_is_incoming (message)) {
1428                 return FALSE;
1429         }
1430
1431         msg = empathy_message_get_body (message);
1432         if (!msg) {
1433                 return FALSE;
1434         }
1435
1436         contact = empathy_tp_chat_get_self_contact (chat->priv->tp_chat);
1437         if (!contact) {
1438                 return FALSE;
1439         }
1440
1441         to = empathy_contact_get_alias (contact);
1442         if (!to) {
1443                 return FALSE;
1444         }
1445
1446         flags = empathy_message_get_flags (message);
1447         if (flags & TP_CHANNEL_TEXT_MESSAGE_FLAG_SCROLLBACK) {
1448                 /* FIXME: Ideally we shouldn't highlight scrollback messages only if they
1449                  * have already been received by the user before (and so are in the logs) */
1450                 return FALSE;
1451         }
1452
1453         regex = get_highlight_regex_for (to);
1454         if (regex != NULL) {
1455                 ret_val = g_regex_match (regex, msg, 0, NULL);
1456                 g_regex_unref (regex);
1457         }
1458
1459         return ret_val;
1460 }
1461
1462 static void
1463 chat_message_received (EmpathyChat *chat,
1464         EmpathyMessage *message,
1465         gboolean pending)
1466 {
1467         EmpathyChatPriv *priv = GET_PRIV (chat);
1468         EmpathyContact  *sender;
1469
1470         sender = empathy_message_get_sender (message);
1471
1472         if (empathy_message_is_edit (message)) {
1473                 DEBUG ("Editing message '%s' to '%s'",
1474                         empathy_message_get_supersedes (message),
1475                         empathy_message_get_body (message));
1476
1477                 empathy_chat_view_edit_message (chat->view, message);
1478         } else {
1479                 gboolean should_highlight = chat_should_highlight (chat, message);
1480                 DEBUG ("Appending new message '%s' from %s (%d)",
1481                         empathy_message_get_token (message),
1482                         empathy_contact_get_alias (sender),
1483                         empathy_contact_get_handle (sender));
1484
1485                 empathy_chat_view_append_message (chat->view, message, should_highlight);
1486
1487                 if (empathy_message_is_incoming (message)) {
1488                         priv->unread_messages++;
1489                         g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1490                 }
1491
1492                 g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, pending,
1493                                should_highlight);
1494         }
1495
1496         /* We received a message so the contact is no longer
1497          * composing */
1498         chat_state_changed_cb (priv->tp_chat, sender,
1499                                TP_CHANNEL_CHAT_STATE_ACTIVE,
1500                                chat);
1501 }
1502
1503 static void
1504 chat_message_received_cb (EmpathyTpChat  *tp_chat,
1505                           EmpathyMessage *message,
1506                           EmpathyChat    *chat)
1507 {
1508         chat_message_received (chat, message, FALSE);
1509 }
1510
1511 static void
1512 chat_message_acknowledged_cb (EmpathyTpChat  *tp_chat,
1513                               EmpathyMessage *message,
1514                               EmpathyChat    *chat)
1515 {
1516         EmpathyChatPriv *priv = GET_PRIV (chat);
1517
1518         empathy_chat_view_message_acknowledged (chat->view,
1519             message);
1520
1521         if (!empathy_message_is_edit (message)) {
1522                 priv->unread_messages--;
1523                 g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1524         }
1525 }
1526
1527 static void
1528 append_balance_error (EmpathyChat *chat,
1529                       const gchar *message_body)
1530 {
1531         EmpathyChatPriv *priv = GET_PRIV (chat);
1532         TpConnection *conn = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
1533         const gchar *uri = tp_connection_get_balance_uri (conn);
1534         const gchar *error = _("insufficient balance to send message");
1535         gchar *str, *str_markup = NULL;
1536
1537         if (message_body != NULL) {
1538                 str = g_strdup_printf (_("Error sending message '%s': %s"), message_body, error);
1539         } else {
1540                 str = g_strdup_printf (_("Error sending message: %s"), error);
1541         }
1542
1543         if (!tp_str_empty (uri)) {
1544                 /* translators: error used when user doesn't have enough credit on his
1545                  * account to send the message. */
1546                 gchar *markup_error = g_strdup_printf (_("insufficient balance to send message."
1547                                                          " <a href='%s'>Top up</a>."), uri);
1548
1549                 if (message_body != NULL) {
1550                         gchar *escaped_body = g_markup_escape_text (message_body, -1);
1551
1552                         str_markup = g_strdup_printf (_("Error sending message '%s': %s"),
1553                                 escaped_body, markup_error);
1554
1555                         g_free (escaped_body);
1556                 } else {
1557                         str_markup = g_strdup_printf (_("Error sending message: %s"), markup_error);
1558                 }
1559
1560                 g_free (markup_error);
1561         }
1562
1563         if (str_markup != NULL)
1564                 empathy_chat_view_append_event_markup (chat->view, str_markup, str);
1565         else
1566                 empathy_chat_view_append_event (chat->view, str);
1567
1568         g_free (str);
1569         g_free (str_markup);
1570 }
1571
1572 static void
1573 chat_send_error_cb (EmpathyTpChat          *tp_chat,
1574                     const gchar            *message_body,
1575                     TpChannelTextSendError  error_code,
1576                     const gchar            *dbus_error,
1577                     EmpathyChat            *chat)
1578 {
1579         const gchar *error = NULL;
1580         gchar       *str;
1581
1582         if (!tp_strdiff (dbus_error, TP_ERROR_STR_INSUFFICIENT_BALANCE)) {
1583                 append_balance_error (chat, message_body);
1584                 return;
1585         } else if (!tp_strdiff (dbus_error, TP_ERROR_STR_NOT_CAPABLE)) {
1586                 error = _("not capable");
1587         }
1588
1589         if (error == NULL) {
1590                 /* if we didn't find a dbus-error, try the old error */
1591                 switch (error_code) {
1592                 case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
1593                         error = _("offline");
1594                         break;
1595                 case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
1596                         error = _("invalid contact");
1597                         break;
1598                 case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
1599                         error = _("permission denied");
1600                         break;
1601                 case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
1602                         error = _("too long message");
1603                         break;
1604                 case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
1605                         error = _("not implemented");
1606                         break;
1607                 case TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN:
1608                 default:
1609                         error = _("unknown");
1610                         break;
1611                 }
1612         }
1613
1614         if (message_body != NULL) {
1615                         str = g_strdup_printf (_("Error sending message '%s': %s"),
1616                                 message_body, error);
1617         }
1618         else {
1619                         str = g_strdup_printf (_("Error sending message: %s"), error);
1620         }
1621
1622         empathy_chat_view_append_event (chat->view, str);
1623         g_free (str);
1624 }
1625
1626 static void
1627 chat_topic_label_size_allocate_cb (GtkLabel *label,
1628                                    GtkAllocation *allocation,
1629                                    EmpathyChat *chat)
1630 {
1631         EmpathyChatPriv *priv = GET_PRIV (chat);
1632
1633         if (!gtk_label_get_line_wrap (label)) {
1634                 if (pango_layout_is_ellipsized (gtk_label_get_layout (label)))
1635                         gtk_widget_show (priv->expander_topic);
1636                 else
1637                         gtk_widget_hide (priv->expander_topic);
1638
1639                 return;
1640         }
1641 }
1642
1643 static void
1644 chat_topic_expander_activate_cb (GtkExpander *expander,
1645                                  GParamSpec *param_spec,
1646                                  EmpathyChat *chat)
1647 {
1648         EmpathyChatPriv *priv = GET_PRIV (chat);
1649
1650         if (gtk_expander_get_expanded (expander)) {
1651                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_NONE);
1652                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), TRUE);
1653         } else {
1654                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_END);
1655                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), FALSE);
1656         }
1657 }
1658
1659 static void
1660 chat_subject_changed_cb (EmpathyChat *chat)
1661 {
1662         EmpathyChatPriv *priv = GET_PRIV (chat);
1663
1664                 g_free (priv->subject);
1665                 priv->subject = g_strdup (empathy_tp_chat_get_subject (priv->tp_chat));
1666                 g_object_notify (G_OBJECT (chat), "subject");
1667
1668                 if (EMP_STR_EMPTY (priv->subject)) {
1669                         gtk_widget_hide (priv->hbox_topic);
1670                 } else {
1671                         gchar *markup_topic;
1672                         gchar *markup_text;
1673
1674                         markup_topic = empathy_add_link_markup (priv->subject);
1675                         markup_text = g_strdup_printf ("<span weight=\"bold\">%s</span> %s",
1676                                 _("Topic:"), markup_topic);
1677
1678                         gtk_label_set_markup (GTK_LABEL (priv->label_topic), markup_text);
1679                         g_free (markup_text);
1680                         g_free (markup_topic);
1681
1682                         gtk_widget_show (priv->hbox_topic);
1683                 }
1684                 if (priv->block_events_timeout_id == 0) {
1685                         gchar *str;
1686
1687                         if (!EMP_STR_EMPTY (priv->subject)) {
1688                                 str = g_strdup_printf (_("Topic set to: %s"), priv->subject);
1689                         } else {
1690                                 str = g_strdup (_("No topic defined"));
1691                         }
1692                         empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
1693                         g_free (str);
1694                 }
1695 }
1696
1697 static void
1698 chat_title_changed_cb (EmpathyChat *chat)
1699 {
1700         EmpathyChatPriv *priv = GET_PRIV (chat);
1701
1702                 g_free (priv->name);
1703                 priv->name = g_strdup (empathy_tp_chat_get_title (priv->tp_chat));
1704                 g_object_notify (G_OBJECT (chat), "name");
1705 }
1706
1707 static gboolean
1708 chat_input_text_get_word_from_iter (GtkTextIter   *iter,
1709                                     GtkTextIter   *start,
1710                                     GtkTextIter   *end)
1711 {
1712         GtkTextIter word_start = *iter;
1713         GtkTextIter word_end = *iter;
1714         GtkTextIter tmp;
1715
1716         if (gtk_text_iter_inside_word (&word_end) &&
1717                         !gtk_text_iter_ends_word (&word_end)) {
1718                 gtk_text_iter_forward_word_end (&word_end);
1719         }
1720
1721         tmp = word_end;
1722
1723         if (gtk_text_iter_get_char (&tmp) == '\'') {
1724                 gtk_text_iter_forward_char (&tmp);
1725
1726                 if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1727                         gtk_text_iter_forward_word_end (&word_end);
1728                 }
1729         }
1730
1731
1732         if (gtk_text_iter_inside_word (&word_start) ||
1733                         gtk_text_iter_ends_word (&word_start)) {
1734                 if (!gtk_text_iter_starts_word (&word_start) ||
1735                                 gtk_text_iter_equal (&word_start, &word_end)) {
1736                         gtk_text_iter_backward_word_start (&word_start);
1737                 }
1738
1739                 tmp = word_start;
1740                 gtk_text_iter_backward_char (&tmp);
1741
1742                 if (gtk_text_iter_get_char (&tmp) == '\'') {
1743                         gtk_text_iter_backward_char (&tmp);
1744
1745                         if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1746                                 gtk_text_iter_backward_word_start (&word_start);
1747                         }
1748                 }
1749         }
1750
1751         *start = word_start;
1752         *end = word_end;
1753         return TRUE;
1754 }
1755
1756 static void
1757 chat_input_text_buffer_insert_text_cb (GtkTextBuffer *buffer,
1758                                        GtkTextIter   *location,
1759                                        gchar         *text,
1760                                        gint           len,
1761                                        EmpathyChat   *chat)
1762 {
1763         GtkTextIter iter, pos;
1764
1765         /* Remove all misspelled tags in the inserted text.
1766          * This happens when text is inserted within a misspelled word. */
1767         gtk_text_buffer_get_iter_at_offset (buffer, &iter,
1768                                             gtk_text_iter_get_offset (location) - len);
1769         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1770                                             &iter, location);
1771
1772         gtk_text_buffer_get_iter_at_mark (buffer, &pos, gtk_text_buffer_get_insert (buffer));
1773
1774         do {
1775                 GtkTextIter start, end;
1776                 gchar *str;
1777
1778                 if (!chat_input_text_get_word_from_iter (&iter, &start, &end))
1779                         continue;
1780
1781                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1782
1783                 if (gtk_text_iter_in_range (&pos, &start, &end) ||
1784                                 gtk_text_iter_equal (&pos, &end) ||
1785                                 empathy_spell_check (str)) {
1786                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
1787                 } else {
1788                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
1789                 }
1790
1791                 g_free (str);
1792
1793         } while (gtk_text_iter_forward_word_end (&iter) &&
1794                  gtk_text_iter_compare (&iter, location) <= 0);
1795 }
1796
1797 static void
1798 chat_input_text_buffer_delete_range_cb (GtkTextBuffer *buffer,
1799                                         GtkTextIter   *start,
1800                                         GtkTextIter   *end,
1801                                         EmpathyChat   *chat)
1802 {
1803         GtkTextIter word_start, word_end;
1804
1805         if (chat_input_text_get_word_from_iter (start, &word_start, &word_end)) {
1806                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1807                                                     &word_start, &word_end);
1808         }
1809 }
1810
1811 static void
1812 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
1813                                    EmpathyChat    *chat)
1814 {
1815         if (gtk_text_buffer_get_char_count (buffer) == 0) {
1816                 chat_composing_stop (chat);
1817         } else {
1818                 chat_composing_start (chat);
1819         }
1820 }
1821
1822 static void
1823 chat_input_text_buffer_notify_cursor_position_cb (GtkTextBuffer *buffer,
1824                                                   GParamSpec    *pspec,
1825                                                   EmpathyChat    *chat)
1826 {
1827         GtkTextIter pos;
1828         GtkTextIter prev_pos;
1829         GtkTextIter word_start;
1830         GtkTextIter word_end;
1831         GtkTextMark *mark;
1832         gchar *str;
1833
1834         mark = gtk_text_buffer_get_mark (buffer, "previous-cursor-position");
1835
1836         gtk_text_buffer_get_iter_at_mark (buffer, &pos,
1837                                           gtk_text_buffer_get_insert (buffer));
1838         gtk_text_buffer_get_iter_at_mark (buffer, &prev_pos, mark);
1839
1840         if (!chat_input_text_get_word_from_iter (&prev_pos, &word_start, &word_end))
1841                 goto out;
1842
1843         if (!gtk_text_iter_in_range (&pos, &word_start, &word_end) &&
1844                         !gtk_text_iter_equal (&pos, &word_end)) {
1845                 str = gtk_text_buffer_get_text (buffer,
1846                                         &word_start, &word_end, FALSE);
1847
1848                 if (!empathy_spell_check (str)) {
1849                         gtk_text_buffer_apply_tag_by_name (buffer,
1850                                         "misspelled", &word_start, &word_end);
1851                 } else {
1852                         gtk_text_buffer_remove_tag_by_name (buffer,
1853                                         "misspelled", &word_start, &word_end);
1854                 }
1855
1856                 g_free (str);
1857         }
1858
1859 out:
1860         gtk_text_buffer_move_mark (buffer, mark, &pos);
1861 }
1862
1863 static gboolean
1864 empathy_isspace_cb (gunichar c,
1865                  gpointer data)
1866 {
1867         return g_unichar_isspace (c);
1868 }
1869
1870 static gboolean
1871 chat_input_key_press_event_cb (GtkWidget   *widget,
1872                                GdkEventKey *event,
1873                                EmpathyChat *chat)
1874 {
1875         EmpathyChatPriv *priv;
1876         GtkAdjustment  *adj;
1877         gdouble         val;
1878         GtkWidget      *text_view_sw;
1879
1880         priv = GET_PRIV (chat);
1881
1882         priv->most_recent_event_type = event->type;
1883
1884         /* Catch ctrl+up/down so we can traverse messages we sent */
1885         if ((event->state & GDK_CONTROL_MASK) &&
1886             (event->keyval == GDK_KEY_Up ||
1887              event->keyval == GDK_KEY_Down)) {
1888                 GtkTextBuffer *buffer;
1889                 const gchar   *str;
1890
1891                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1892                 chat_input_history_update (chat, buffer);
1893
1894                 if (event->keyval == GDK_KEY_Up) {
1895                         str = chat_input_history_get_next (chat);
1896                 } else {
1897                         str = chat_input_history_get_prev (chat);
1898                 }
1899
1900                 g_signal_handlers_block_by_func (buffer,
1901                                                  chat_input_text_buffer_changed_cb,
1902                                                  chat);
1903                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
1904                 g_signal_handlers_unblock_by_func (buffer,
1905                                                    chat_input_text_buffer_changed_cb,
1906                                                    chat);
1907
1908                 return TRUE;
1909         }
1910
1911         /* Catch enter but not ctrl/shift-enter */
1912         if (IS_ENTER (event->keyval) &&
1913             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1914                 GtkTextView *view;
1915
1916                 /* This is to make sure that kinput2 gets the enter. And if
1917                  * it's handled there we shouldn't send on it. This is because
1918                  * kinput2 uses Enter to commit letters. See:
1919                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
1920                  */
1921
1922                 view = GTK_TEXT_VIEW (chat->input_text_view);
1923                 if (gtk_text_view_im_context_filter_keypress (view, event)) {
1924                         gtk_text_view_reset_im_context (view);
1925                         return TRUE;
1926                 }
1927
1928                 chat_input_text_view_send (chat);
1929                 return TRUE;
1930         }
1931
1932         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
1933
1934         if (IS_ENTER (event->keyval) &&
1935             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1936                 /* Newline for shift/control-enter. */
1937                 return FALSE;
1938         }
1939         if (!(event->state & GDK_CONTROL_MASK) &&
1940             event->keyval == GDK_KEY_Page_Up) {
1941                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1942                 gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) - gtk_adjustment_get_page_size (adj));
1943                 return TRUE;
1944         }
1945         if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
1946             event->keyval == GDK_KEY_Page_Down) {
1947                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1948                 val = MIN (gtk_adjustment_get_value (adj) + gtk_adjustment_get_page_size (adj),
1949                            gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj));
1950                 gtk_adjustment_set_value (adj, val);
1951                 return TRUE;
1952         }
1953         if (event->keyval == GDK_KEY_Escape) {
1954                 empathy_search_bar_hide (EMPATHY_SEARCH_BAR (priv->search_bar));
1955         }
1956         if (!(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) &&
1957             event->keyval == GDK_KEY_Tab) {
1958                 GtkTextBuffer *buffer;
1959                 GtkTextIter    start, current;
1960                 gchar         *nick, *completed;
1961                 GList         *list, *completed_list;
1962                 gboolean       is_start_of_buffer;
1963
1964                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (EMPATHY_CHAT (chat)->input_text_view));
1965                 gtk_text_buffer_get_iter_at_mark (buffer, &current, gtk_text_buffer_get_insert (buffer));
1966
1967                 /* Get the start of the nick to complete. */
1968                 gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
1969                 if (gtk_text_iter_backward_find_char (&start, &empathy_isspace_cb, NULL, NULL)) {
1970                         gtk_text_iter_set_offset (&start, gtk_text_iter_get_offset (&start) + 1);
1971                 }
1972                 is_start_of_buffer = gtk_text_iter_is_start (&start);
1973
1974                 list = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (priv->tp_chat));
1975                 g_completion_add_items (priv->completion, list);
1976
1977                 nick = gtk_text_buffer_get_text (buffer, &start, &current, FALSE);
1978                 completed_list = g_completion_complete (priv->completion,
1979                                                         nick,
1980                                                         &completed);
1981
1982                 g_free (nick);
1983
1984                 if (completed) {
1985                         guint        len;
1986                         const gchar *text;
1987                         GString     *message = NULL;
1988                         GList       *l;
1989
1990                         gtk_text_buffer_delete (buffer, &start, &current);
1991
1992                         len = g_list_length (completed_list);
1993
1994                         if (len == 1) {
1995                                 /* If we only have one hit, use that text
1996                                  * instead of the text in completed since the
1997                                  * completed text will use the typed string
1998                                  * which might be cased all wrong.
1999                                  * Fixes #120876
2000                                  * */
2001                                 text = empathy_contact_get_alias (completed_list->data);
2002                         } else {
2003                                 text = completed;
2004
2005                                 /* Print all hits to the scrollback view, so the
2006                                  * user knows what possibilities he has.
2007                                  * Fixes #599779
2008                                  * */
2009                                  message = g_string_new ("");
2010                                  for (l = completed_list; l != NULL; l = l->next) {
2011                                         g_string_append (message, empathy_contact_get_alias (l->data));
2012                                         g_string_append (message, " - ");
2013                                  }
2014                                  empathy_chat_view_append_event (chat->view, message->str);
2015                                  g_string_free (message, TRUE);
2016                         }
2017
2018                         gtk_text_buffer_insert_at_cursor (buffer, text, strlen (text));
2019
2020                         if (len == 1 && is_start_of_buffer) {
2021                             gchar *complete_char;
2022
2023                             complete_char = g_settings_get_string (
2024                                     priv->gsettings_chat,
2025                                     EMPATHY_PREFS_CHAT_NICK_COMPLETION_CHAR);
2026
2027                             if (complete_char != NULL) {
2028                                 gtk_text_buffer_insert_at_cursor (buffer,
2029                                                                   complete_char,
2030                                                                   strlen (complete_char));
2031                                 gtk_text_buffer_insert_at_cursor (buffer, " ", 1);
2032                                 g_free (complete_char);
2033                             }
2034                         }
2035
2036                         g_free (completed);
2037                 }
2038
2039                 g_completion_clear_items (priv->completion);
2040
2041                 g_list_foreach (list, (GFunc) g_object_unref, NULL);
2042                 g_list_free (list);
2043
2044                 return TRUE;
2045         }
2046
2047         return FALSE;
2048 }
2049
2050 static gboolean
2051 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
2052                                   GdkEvent   *event,
2053                                   EmpathyChat *chat)
2054 {
2055         gtk_widget_grab_focus (chat->input_text_view);
2056
2057         return TRUE;
2058 }
2059
2060 static void
2061 chat_input_realize_cb (GtkWidget   *widget,
2062                        EmpathyChat *chat)
2063 {
2064         DEBUG ("Setting focus to the input text view");
2065         if (gtk_widget_is_sensitive (widget)) {
2066                 gtk_widget_grab_focus (widget);
2067         }
2068 }
2069
2070 static void
2071 chat_input_has_focus_notify_cb (GtkWidget   *widget,
2072                                 GParamSpec  *pspec,
2073                                 EmpathyChat *chat)
2074 {
2075         empathy_chat_view_focus_toggled (chat->view, gtk_widget_has_focus (widget));
2076 }
2077
2078 static void
2079 chat_insert_smiley_activate_cb (EmpathySmileyManager *manager,
2080                                 EmpathySmiley        *smiley,
2081                                 gpointer              user_data)
2082 {
2083         EmpathyChat   *chat = EMPATHY_CHAT (user_data);
2084         GtkTextBuffer *buffer;
2085         GtkTextIter    iter;
2086
2087         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2088
2089         gtk_text_buffer_get_end_iter (buffer, &iter);
2090         gtk_text_buffer_insert (buffer, &iter, smiley->str, -1);
2091
2092         gtk_text_buffer_get_end_iter (buffer, &iter);
2093         gtk_text_buffer_insert (buffer, &iter, " ", -1);
2094 }
2095
2096 typedef struct {
2097         EmpathyChat  *chat;
2098         gchar       *word;
2099
2100         GtkTextIter  start;
2101         GtkTextIter  end;
2102 } EmpathyChatSpell;
2103
2104 static EmpathyChatSpell *
2105 chat_spell_new (EmpathyChat  *chat,
2106                 const gchar *word,
2107                 GtkTextIter  start,
2108                 GtkTextIter  end)
2109 {
2110         EmpathyChatSpell *chat_spell;
2111
2112         chat_spell = g_slice_new0 (EmpathyChatSpell);
2113
2114         chat_spell->chat = g_object_ref (chat);
2115         chat_spell->word = g_strdup (word);
2116         chat_spell->start = start;
2117         chat_spell->end = end;
2118
2119         return chat_spell;
2120 }
2121
2122 static void
2123 chat_spell_free (EmpathyChatSpell *chat_spell)
2124 {
2125         g_object_unref (chat_spell->chat);
2126         g_free (chat_spell->word);
2127         g_slice_free (EmpathyChatSpell, chat_spell);
2128 }
2129
2130 static void
2131 chat_spelling_menu_activate_cb (GtkMenuItem     *menu_item,
2132                                                 EmpathyChatSpell *chat_spell)
2133 {
2134     empathy_chat_correct_word (chat_spell->chat,
2135                                &(chat_spell->start),
2136                                &(chat_spell->end),
2137                                gtk_menu_item_get_label (menu_item));
2138 }
2139
2140
2141 static GtkWidget *
2142 chat_spelling_build_suggestions_menu (const gchar *code,
2143                                       EmpathyChatSpell *chat_spell)
2144 {
2145         GList     *suggestions, *l;
2146         GtkWidget *menu, *menu_item;
2147
2148         suggestions = empathy_spell_get_suggestions (code, chat_spell->word);
2149         if (suggestions == NULL)
2150                 return NULL;
2151
2152         menu = gtk_menu_new ();
2153         for (l = suggestions; l; l = l->next) {
2154                 menu_item = gtk_menu_item_new_with_label (l->data);
2155                 g_signal_connect (G_OBJECT (menu_item), "activate",
2156                                   G_CALLBACK (chat_spelling_menu_activate_cb),
2157                                   chat_spell);
2158                 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
2159         }
2160         empathy_spell_free_suggestions (suggestions);
2161
2162         gtk_widget_show_all (menu);
2163
2164         return menu;
2165 }
2166
2167 static GtkWidget *
2168 chat_spelling_build_menu (EmpathyChatSpell *chat_spell)
2169 {
2170         GtkWidget *menu, *submenu, *item;
2171         GList     *codes, *l;
2172
2173         codes = empathy_spell_get_enabled_language_codes ();
2174         g_assert (codes != NULL);
2175
2176         if (g_list_length (codes) > 1) {
2177                 menu = gtk_menu_new ();
2178
2179                 for (l = codes; l; l = l->next) {
2180                         const gchar *code, *name;
2181
2182                         code = l->data;
2183                         name = empathy_spell_get_language_name (code);
2184                         if (!name)
2185                                 continue;
2186
2187                         item = gtk_image_menu_item_new_with_label (name);
2188
2189                         submenu = chat_spelling_build_suggestions_menu (
2190                                         code, chat_spell);
2191                         if (submenu == NULL)
2192                                 gtk_widget_set_sensitive (item, FALSE);
2193                         else
2194                                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item),
2195                                                            submenu);
2196                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2197                 }
2198         } else {
2199                 menu = chat_spelling_build_suggestions_menu (codes->data,
2200                                                              chat_spell);
2201                 if (menu == NULL) {
2202                         menu = gtk_menu_new ();
2203                         item = gtk_menu_item_new_with_label (_("(No Suggestions)"));
2204                         gtk_widget_set_sensitive (item, FALSE);
2205                         gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
2206                 }
2207         }
2208         g_list_free (codes);
2209
2210         gtk_widget_show_all (menu);
2211
2212         return menu;
2213 }
2214
2215 typedef struct {
2216         EmpathyChat  *chat;
2217         gchar        *word;
2218         gchar        *code;
2219 } EmpathyChatWord;
2220
2221 static EmpathyChatWord *
2222 chat_word_new (EmpathyChat  *chat,
2223                 const gchar  *word,
2224                 const gchar  *code)
2225 {
2226         EmpathyChatWord *chat_word;
2227
2228         chat_word = g_slice_new0 (EmpathyChatWord);
2229
2230         chat_word->chat = g_object_ref (chat);
2231         chat_word->word = g_strdup (word);
2232         chat_word->code = g_strdup (code);
2233
2234         return chat_word;
2235 }
2236
2237 static void
2238 chat_word_free (EmpathyChatWord *chat_word)
2239 {
2240         g_object_unref (chat_word->chat);
2241         g_free (chat_word->word);
2242         g_free (chat_word->code);
2243         g_slice_free (EmpathyChatWord, chat_word);
2244 }
2245
2246 static void
2247 chat_add_to_dictionary_activate_cb (GtkMenuItem     *menu_item,
2248                                     EmpathyChatWord *chat_word)
2249 {
2250         EmpathyChatPriv *priv = GET_PRIV (chat_word->chat);
2251
2252         empathy_spell_add_to_dictionary (chat_word->code,
2253                                          chat_word->word);
2254         priv->update_misspelled_words_id =
2255                 g_idle_add (update_misspelled_words, chat_word->chat);
2256 }
2257
2258 static GtkWidget *
2259 chat_spelling_build_add_to_dictionary_item (EmpathyChatSpell *chat_spell)
2260 {
2261         GtkWidget       *menu, *item, *lang_item, *image;
2262         GList           *codes, *l;
2263         gchar           *label;
2264         const gchar     *code, *name;
2265         EmpathyChatWord *chat_word;
2266
2267         codes = empathy_spell_get_enabled_language_codes ();
2268         g_assert (codes != NULL);
2269         if (g_list_length (codes) > 1) {
2270                 /* translators: %s is the selected word */
2271                 label = g_strdup_printf (_("Add '%s' to Dictionary"),
2272                                         chat_spell->word);
2273                 item = gtk_image_menu_item_new_with_mnemonic (label);
2274                 g_free (label);
2275                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2276                                                       GTK_ICON_SIZE_MENU);
2277                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
2278                                                image);
2279
2280                 menu = gtk_menu_new ();
2281
2282                 for (l = codes; l; l = l->next) {
2283                         code = l->data;
2284                         name = empathy_spell_get_language_name (code);
2285                         if (name == NULL)
2286                                 continue;
2287
2288                         lang_item = gtk_image_menu_item_new_with_label (name);
2289
2290                         chat_word= chat_word_new (chat_spell->chat,
2291                                                   chat_spell->word, code);
2292                         g_object_set_data_full (G_OBJECT (lang_item),
2293                                 "chat-word", chat_word,
2294                                 (GDestroyNotify) chat_word_free);
2295
2296                         g_signal_connect (G_OBJECT (lang_item), "activate",
2297                                 G_CALLBACK (chat_add_to_dictionary_activate_cb),
2298                                 chat_word);
2299                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), lang_item);
2300                 }
2301                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
2302         } else {
2303                 code = codes->data;
2304                 name = empathy_spell_get_language_name (code);
2305                 g_assert (name != NULL);
2306                 /* translators: first %s is the selected word,
2307                  * second %s is the language name of the target dictionary */
2308                 label = g_strdup_printf (_("Add '%s' to %s Dictionary"),
2309                                         chat_spell->word, name);
2310                 item = gtk_image_menu_item_new_with_mnemonic (label);
2311                 g_free (label);
2312                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2313                                                       GTK_ICON_SIZE_MENU);
2314                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2315
2316                 chat_word = chat_word_new (chat_spell->chat, chat_spell->word,
2317                                            code);
2318                 g_object_set_data_full (G_OBJECT (item), "chat-word", chat_word,
2319                                         (GDestroyNotify) chat_word_free);
2320
2321                 g_signal_connect (G_OBJECT (item), "activate",
2322                                   G_CALLBACK (chat_add_to_dictionary_activate_cb),
2323                                   chat_word);
2324         }
2325         g_list_free (codes);
2326
2327         gtk_widget_show_all (item);
2328
2329         return item;
2330 }
2331
2332 static void
2333 chat_text_send_cb (GtkMenuItem *menuitem,
2334                    EmpathyChat *chat)
2335 {
2336         chat_input_text_view_send (chat);
2337 }
2338
2339 static gboolean
2340 chat_input_button_press_event_cb (GtkTextView    *view,
2341                                   GdkEventButton *event,
2342                                   EmpathyChat    *chat)
2343 {
2344         EmpathyChatPriv *priv = GET_PRIV (chat);
2345
2346         priv->most_recent_event_type = event->type;
2347
2348         return FALSE;
2349 }
2350
2351 static void
2352 chat_input_populate_popup_cb (GtkTextView *view,
2353                               GtkMenu     *menu,
2354                               EmpathyChat *chat)
2355 {
2356         EmpathyChatPriv      *priv = GET_PRIV (chat);
2357         GtkTextBuffer        *buffer;
2358         GtkTextTagTable      *table;
2359         GtkTextTag           *tag;
2360         gint                  x, y;
2361         GtkTextIter           iter, start, end;
2362         GtkWidget            *item;
2363         gchar                *str = NULL;
2364         EmpathyChatSpell     *chat_spell;
2365         GtkWidget            *spell_menu;
2366         GtkWidget            *spell_item;
2367         EmpathySmileyManager *smiley_manager;
2368         GtkWidget            *smiley_menu;
2369         GtkWidget            *image;
2370
2371         buffer = gtk_text_view_get_buffer (view);
2372
2373         /* Add the emoticon menu. */
2374         item = gtk_separator_menu_item_new ();
2375         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2376         gtk_widget_show (item);
2377
2378         item = gtk_image_menu_item_new_with_mnemonic (_("Insert Smiley"));
2379         image = gtk_image_new_from_icon_name ("face-smile",
2380                                               GTK_ICON_SIZE_MENU);
2381         gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2382         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2383         gtk_widget_show (item);
2384
2385         smiley_manager = empathy_smiley_manager_dup_singleton ();
2386         smiley_menu = empathy_smiley_menu_new (smiley_manager,
2387                                                chat_insert_smiley_activate_cb,
2388                                                chat);
2389         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
2390         g_object_unref (smiley_manager);
2391
2392         /* Add the Send menu item. */
2393         gtk_text_buffer_get_bounds (buffer, &start, &end);
2394         str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2395         if (!EMP_STR_EMPTY (str)) {
2396                 item = gtk_menu_item_new_with_mnemonic (_("_Send"));
2397                 g_signal_connect (G_OBJECT (item), "activate",
2398                                   G_CALLBACK (chat_text_send_cb), chat);
2399                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2400                 gtk_widget_show (item);
2401         }
2402         str = NULL;
2403
2404         /* Add the spell check menu item. */
2405         table = gtk_text_buffer_get_tag_table (buffer);
2406         tag = gtk_text_tag_table_lookup (table, "misspelled");
2407
2408         switch (priv->most_recent_event_type) {
2409             case GDK_BUTTON_PRESS:
2410                 /* get the location from the pointer */
2411                 gdk_window_get_device_position (gtk_widget_get_window (GTK_WIDGET (view)),
2412                         gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (
2413                                 gtk_widget_get_display (GTK_WIDGET (view)))), &x, &y, NULL);
2414
2415                 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
2416                                                        GTK_TEXT_WINDOW_WIDGET,
2417                                                        x, y,
2418                                                        &x, &y);
2419                 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
2420                                                     &iter, x, y);
2421                 break;
2422
2423             default:
2424                 g_warn_if_reached ();
2425                 /* assume the KEY_PRESS case */
2426
2427             case GDK_KEY_PRESS:
2428                 /* get the location from the cursor */
2429                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2430                                 gtk_text_buffer_get_insert (buffer));
2431                 break;
2432
2433         }
2434
2435         start = end = iter;
2436         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
2437             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
2438
2439                 str = gtk_text_buffer_get_text (buffer,
2440                                                 &start, &end, FALSE);
2441         }
2442         if (!EMP_STR_EMPTY (str)) {
2443                 chat_spell = chat_spell_new (chat, str, start, end);
2444                 g_object_set_data_full (G_OBJECT (menu),
2445                                         "chat-spell", chat_spell,
2446                                         (GDestroyNotify) chat_spell_free);
2447
2448                 item = gtk_separator_menu_item_new ();
2449                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2450                 gtk_widget_show (item);
2451
2452                 /* Spelling suggestions */
2453                 item = gtk_image_menu_item_new_with_mnemonic (_("_Spelling Suggestions"));
2454                 image = gtk_image_new_from_icon_name (GTK_STOCK_SPELL_CHECK,
2455                                                       GTK_ICON_SIZE_MENU);
2456                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2457
2458                 spell_menu = chat_spelling_build_menu (chat_spell);
2459                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), spell_menu);
2460
2461
2462                 spell_item = gtk_separator_menu_item_new ();
2463                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2464                 gtk_widget_show (spell_item);
2465
2466                 /* Add to dictionary */
2467                 spell_item = chat_spelling_build_add_to_dictionary_item (chat_spell);
2468
2469                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2470                 gtk_widget_show (spell_item);
2471
2472                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2473                 gtk_widget_show (item);
2474         }
2475 }
2476
2477
2478 static gboolean
2479 chat_log_filter (TplEvent *event,
2480                  gpointer user_data)
2481 {
2482         EmpathyChat *chat = user_data;
2483         EmpathyMessage *message;
2484         EmpathyChatPriv *priv = GET_PRIV (chat);
2485         const GList *pending;
2486
2487         g_return_val_if_fail (TPL_IS_EVENT (event), FALSE);
2488         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
2489
2490         pending = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2491         message = empathy_message_from_tpl_log_event (event);
2492
2493         for (; pending; pending = g_list_next (pending)) {
2494                 if (empathy_message_equal (message, pending->data)) {
2495                         g_object_unref (message);
2496                         return FALSE;
2497                 }
2498         }
2499
2500         g_object_unref (message);
2501         return TRUE;
2502 }
2503
2504
2505 static void
2506 show_pending_messages (EmpathyChat *chat) {
2507         EmpathyChatPriv *priv = GET_PRIV (chat);
2508         const GList *messages, *l;
2509
2510         g_return_if_fail (EMPATHY_IS_CHAT (chat));
2511
2512         if (chat->view == NULL || priv->tp_chat == NULL)
2513                 return;
2514
2515         if (!priv->can_show_pending)
2516                 return;
2517
2518         messages = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2519
2520         for (l = messages; l != NULL ; l = g_list_next (l)) {
2521                 EmpathyMessage *message = EMPATHY_MESSAGE (l->data);
2522                 chat_message_received (chat, message, TRUE);
2523         }
2524 }
2525
2526
2527 static void
2528 got_filtered_messages_cb (GObject *manager,
2529                 GAsyncResult *result,
2530                 gpointer user_data)
2531 {
2532         GList *l;
2533         GList *messages;
2534         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2535         EmpathyChatPriv *priv = GET_PRIV (chat);
2536         GError *error = NULL;
2537
2538         if (!tpl_log_manager_get_filtered_events_finish (TPL_LOG_MANAGER (manager),
2539                 result, &messages, &error)) {
2540                 DEBUG ("%s. Aborting.", error->message);
2541                 empathy_chat_view_append_event (chat->view,
2542                         _("Failed to retrieve recent logs"));
2543                 g_error_free (error);
2544                 goto out;
2545         }
2546
2547         for (l = messages; l; l = g_list_next (l)) {
2548                 EmpathyMessage *message;
2549
2550                 g_assert (TPL_IS_EVENT (l->data));
2551
2552                 message = empathy_message_from_tpl_log_event (l->data);
2553                 g_object_unref (l->data);
2554
2555                 if (empathy_message_is_edit (message)) {
2556                         /* this is an edited message, create a synthetic event
2557                          * using the supersedes token and
2558                          * original-message-sent timestamp, that we can then
2559                          * replace */
2560                         EmpathyMessage *syn_msg = g_object_new (
2561                                 EMPATHY_TYPE_MESSAGE,
2562                                 "body", "",
2563                                 "token", empathy_message_get_supersedes (message),
2564                                 "type", empathy_message_get_tptype (message),
2565                                 "timestamp", empathy_message_get_original_timestamp (message),
2566                                 "incoming", empathy_message_is_incoming (message),
2567                                 "is-backlog", TRUE,
2568                                 "receiver", empathy_message_get_receiver (message),
2569                                 "sender", empathy_message_get_sender (message),
2570                                 NULL);
2571
2572                         empathy_chat_view_append_message (chat->view, syn_msg,
2573                                                           chat_should_highlight (chat, syn_msg));
2574                         empathy_chat_view_edit_message (chat->view, message);
2575
2576                         g_object_unref (syn_msg);
2577                 } else {
2578                         /* append the latest message */
2579                         empathy_chat_view_append_message (chat->view, message,
2580                                                           chat_should_highlight (chat, message));
2581                 }
2582
2583                 g_object_unref (message);
2584         }
2585         g_list_free (messages);
2586
2587 out:
2588         /* in case of TPL error, skip backlog and show pending messages */
2589         priv->can_show_pending = TRUE;
2590         show_pending_messages (chat);
2591
2592         /* FIXME: See Bug#610994, we are forcing the ACK of the queue. See comments
2593          * about it in EmpathyChatPriv definition */
2594         priv->retrieving_backlogs = FALSE;
2595         empathy_chat_messages_read (chat);
2596
2597         /* Turn back on scrolling */
2598         empathy_chat_view_scroll (chat->view, TRUE);
2599 }
2600
2601 static void
2602 chat_add_logs (EmpathyChat *chat)
2603 {
2604         EmpathyChatPriv *priv = GET_PRIV (chat);
2605         TplEntity       *target;
2606
2607         if (!priv->id) {
2608                 return;
2609         }
2610
2611         /* Turn off scrolling temporarily */
2612         empathy_chat_view_scroll (chat->view, FALSE);
2613
2614         /* Add messages from last conversation */
2615         if (priv->handle_type == TP_HANDLE_TYPE_ROOM)
2616           target = tpl_entity_new_from_room_id (priv->id);
2617         else
2618           target = tpl_entity_new (priv->id, TPL_ENTITY_CONTACT, NULL, NULL);
2619
2620         priv->retrieving_backlogs = TRUE;
2621         tpl_log_manager_get_filtered_events_async (priv->log_manager,
2622                                                    priv->account,
2623                                                    target,
2624                                                    TPL_EVENT_MASK_TEXT,
2625                                                    5,
2626                                                    chat_log_filter,
2627                                                    chat,
2628                                                    got_filtered_messages_cb,
2629                                                    (gpointer) chat);
2630
2631         g_object_unref (target);
2632 }
2633
2634 static gint
2635 chat_contacts_completion_func (const gchar *s1,
2636                                const gchar *s2,
2637                                gsize        n)
2638 {
2639         gchar *tmp, *nick1, *nick2;
2640         gint   ret;
2641
2642         if (s1 == s2) {
2643                 return 0;
2644         }
2645         if (!s1 || !s2) {
2646                 return s1 ? -1 : +1;
2647         }
2648
2649         tmp = g_utf8_normalize (s1, -1, G_NORMALIZE_DEFAULT);
2650         nick1 = g_utf8_casefold (tmp, -1);
2651         g_free (tmp);
2652
2653         tmp = g_utf8_normalize (s2, -1, G_NORMALIZE_DEFAULT);
2654         nick2 = g_utf8_casefold (tmp, -1);
2655         g_free (tmp);
2656
2657         ret = strncmp (nick1, nick2, n);
2658
2659         g_free (nick1);
2660         g_free (nick2);
2661
2662         return ret;
2663 }
2664
2665 static gchar *
2666 build_part_message (guint           reason,
2667                     const gchar    *name,
2668                     EmpathyContact *actor,
2669                     const gchar    *message)
2670 {
2671         GString *s = g_string_new ("");
2672         const gchar *actor_name = NULL;
2673
2674         if (actor != NULL) {
2675                 actor_name = empathy_contact_get_alias (actor);
2676         }
2677
2678         /* Having an actor only really makes sense for a few actions... */
2679         switch (reason) {
2680         case TP_CHANNEL_GROUP_CHANGE_REASON_OFFLINE:
2681                 g_string_append_printf (s, _("%s has disconnected"), name);
2682                 break;
2683         case TP_CHANNEL_GROUP_CHANGE_REASON_KICKED:
2684                 if (actor_name != NULL) {
2685                         /* translators: reverse the order of these arguments
2686                          * if the kicked should come before the kicker in your locale.
2687                          */
2688                         g_string_append_printf (s, _("%1$s was kicked by %2$s"),
2689                                 name, actor_name);
2690                 } else {
2691                         g_string_append_printf (s, _("%s was kicked"), name);
2692                 }
2693                 break;
2694         case TP_CHANNEL_GROUP_CHANGE_REASON_BANNED:
2695                 if (actor_name != NULL) {
2696                         /* translators: reverse the order of these arguments
2697                          * if the banned should come before the banner in your locale.
2698                          */
2699                         g_string_append_printf (s, _("%1$s was banned by %2$s"),
2700                                 name, actor_name);
2701                 } else {
2702                         g_string_append_printf (s, _("%s was banned"), name);
2703                 }
2704                 break;
2705         default:
2706                 g_string_append_printf (s, _("%s has left the room"), name);
2707         }
2708
2709         if (!EMP_STR_EMPTY (message)) {
2710                 /* Note to translators: this string is appended to
2711                  * notifications like "foo has left the room", with the message
2712                  * given by the user living the room. If this poses a problem,
2713                  * please let us know. :-)
2714                  */
2715                 g_string_append_printf (s, _(" (%s)"), message);
2716         }
2717
2718         return g_string_free (s, FALSE);
2719 }
2720
2721 static void
2722 chat_members_changed_cb (EmpathyTpChat  *tp_chat,
2723                          EmpathyContact *contact,
2724                          EmpathyContact *actor,
2725                          guint           reason,
2726                          gchar          *message,
2727                          gboolean        is_member,
2728                          EmpathyChat    *chat)
2729 {
2730         EmpathyChatPriv *priv = GET_PRIV (chat);
2731         const gchar *name = empathy_contact_get_alias (contact);
2732         gchar *str;
2733
2734         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED != reason);
2735
2736         if (priv->block_events_timeout_id != 0)
2737                 return;
2738
2739         if (is_member) {
2740                 str = g_strdup_printf (_("%s has joined the room"),
2741                                        name);
2742         } else {
2743                 str = build_part_message (reason, name, actor, message);
2744         }
2745
2746         empathy_chat_view_append_event (chat->view, str);
2747         g_free (str);
2748 }
2749
2750 static void
2751 chat_member_renamed_cb (EmpathyTpChat  *tp_chat,
2752                          EmpathyContact *old_contact,
2753                          EmpathyContact *new_contact,
2754                          guint           reason,
2755                          gchar          *message,
2756                          EmpathyChat    *chat)
2757 {
2758         EmpathyChatPriv *priv = GET_PRIV (chat);
2759
2760         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED == reason);
2761
2762         if (priv->block_events_timeout_id == 0) {
2763                 gchar *str;
2764
2765                 str = g_strdup_printf (_("%s is now known as %s"),
2766                                        empathy_contact_get_alias (old_contact),
2767                                        empathy_contact_get_alias (new_contact));
2768                 empathy_chat_view_append_event (chat->view, str);
2769                 g_free (str);
2770         }
2771
2772 }
2773
2774 static gboolean
2775 chat_contacts_visible_timeout_cb (gpointer chat)
2776 {
2777         EmpathyChatPriv *priv = GET_PRIV (chat);
2778
2779         /* Relax the size request */
2780         gtk_widget_set_size_request (priv->vbox_left, -1, -1);
2781
2782         /* Set the position of the slider. This must be done here because
2783          * GtkPaned need to know its size allocation and it will be settled only
2784          * after the gtk_window_resize () tough effect. */
2785         if (priv->contacts_width > 0) {
2786                 gtk_paned_set_position (GTK_PANED (priv->hpaned),
2787                                         priv->contacts_width);
2788         }
2789
2790         priv->contacts_visible_id = 0;
2791
2792         return FALSE;
2793 }
2794
2795 static void
2796 chat_update_contacts_visibility (EmpathyChat *chat,
2797                          gboolean show)
2798 {
2799         EmpathyChatPriv *priv = GET_PRIV (chat);
2800
2801         if (!priv->scrolled_window_contacts) {
2802                 return;
2803         }
2804
2805         if (priv->remote_contact != NULL) {
2806                 show = FALSE;
2807         }
2808
2809         if (show && priv->contact_list_view == NULL) {
2810                 EmpathyIndividualStore *store;
2811                 gint                     min_width;
2812                 GtkAllocation            allocation;
2813
2814                 /* We are adding the contact list to the chat, we don't want the
2815                  * chat view to become too small. If the chat view is already
2816                  * smaller than 250 make sure that size won't change. If the
2817                  * chat view is bigger the contact list will take some space on
2818                  * it but we make sure the chat view don't become smaller than
2819                  * 250. Relax the size request once the resize is done */
2820                 gtk_widget_get_allocation (priv->vbox_left, &allocation);
2821                 min_width = MIN (allocation.width, 250);
2822                 gtk_widget_set_size_request (priv->vbox_left, min_width, -1);
2823
2824                 /* There is no way to know when the window resize will happen
2825                  * since it is WM's decision. Let's hope it won't be longer. */
2826                 if (priv->contacts_visible_id != 0)
2827                         g_source_remove (priv->contacts_visible_id);
2828                 priv->contacts_visible_id = g_timeout_add (500,
2829                         chat_contacts_visible_timeout_cb, chat);
2830
2831                 store = EMPATHY_INDIVIDUAL_STORE (
2832                                 empathy_individual_store_channel_new ((TpChannel *) priv->tp_chat));
2833
2834                 empathy_individual_store_set_show_groups (store, FALSE);
2835
2836                 priv->contact_list_view = GTK_WIDGET (empathy_individual_view_new (store,
2837                         EMPATHY_INDIVIDUAL_VIEW_FEATURE_INDIVIDUAL_TOOLTIP,
2838                         EMPATHY_INDIVIDUAL_FEATURE_ADD_CONTACT |
2839                         EMPATHY_INDIVIDUAL_FEATURE_CHAT |
2840                         EMPATHY_INDIVIDUAL_FEATURE_CALL |
2841                         EMPATHY_INDIVIDUAL_FEATURE_LOG |
2842                         EMPATHY_INDIVIDUAL_FEATURE_INFO));
2843
2844                 empathy_individual_view_set_show_offline (
2845                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2846                 empathy_individual_view_set_show_uninteresting (
2847                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2848
2849                 gtk_container_add (GTK_CONTAINER (priv->scrolled_window_contacts),
2850                                    priv->contact_list_view);
2851
2852                 gtk_widget_show (priv->contact_list_view);
2853                 gtk_widget_show (priv->scrolled_window_contacts);
2854                 g_object_unref (store);
2855         } else if (!show) {
2856                 priv->contacts_width = gtk_paned_get_position (GTK_PANED (priv->hpaned));
2857                 gtk_widget_hide (priv->scrolled_window_contacts);
2858                 if (priv->contact_list_view != NULL) {
2859                         gtk_widget_destroy (priv->contact_list_view);
2860                         priv->contact_list_view = NULL;
2861                 }
2862         }
2863 }
2864
2865 void
2866 empathy_chat_set_show_contacts (EmpathyChat *chat,
2867                                 gboolean     show)
2868 {
2869         EmpathyChatPriv *priv = GET_PRIV (chat);
2870
2871         priv->show_contacts = show;
2872
2873         chat_update_contacts_visibility (chat, show);
2874
2875         g_object_notify (G_OBJECT (chat), "show-contacts");
2876 }
2877
2878 static void
2879 chat_remote_contact_changed_cb (EmpathyChat *chat)
2880 {
2881         EmpathyChatPriv *priv = GET_PRIV (chat);
2882
2883         if (priv->remote_contact != NULL) {
2884                 g_object_unref (priv->remote_contact);
2885                 priv->remote_contact = NULL;
2886         }
2887
2888         g_free (priv->id);
2889
2890         priv->id = g_strdup (empathy_tp_chat_get_id (priv->tp_chat));
2891         priv->remote_contact = empathy_tp_chat_get_remote_contact (priv->tp_chat);
2892         if (priv->remote_contact != NULL) {
2893                 g_object_ref (priv->remote_contact);
2894                 priv->handle_type = TP_HANDLE_TYPE_CONTACT;
2895         }
2896         else if (priv->tp_chat != NULL) {
2897                 tp_channel_get_handle ((TpChannel *) priv->tp_chat, &priv->handle_type);
2898         }
2899
2900         chat_update_contacts_visibility (chat, priv->show_contacts);
2901
2902         g_object_notify (G_OBJECT (chat), "remote-contact");
2903         g_object_notify (G_OBJECT (chat), "id");
2904 }
2905
2906 static void
2907 chat_invalidated_cb (EmpathyTpChat *tp_chat,
2908                  guint domain,
2909                  gint code,
2910                  gchar *message,
2911                  EmpathyChat   *chat)
2912 {
2913         EmpathyChatPriv *priv;
2914
2915         priv = GET_PRIV (chat);
2916
2917         if (!priv->tp_chat) {
2918                 return;
2919         }
2920
2921         chat_composing_remove_timeout (chat);
2922         g_object_unref (priv->tp_chat);
2923         priv->tp_chat = NULL;
2924         g_object_notify (G_OBJECT (chat), "tp-chat");
2925
2926         empathy_chat_view_append_event (chat->view, _("Disconnected"));
2927         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
2928
2929         chat_update_contacts_visibility (chat, FALSE);
2930
2931         priv->unread_messages_when_offline = priv->unread_messages;
2932 }
2933
2934 static gboolean
2935 update_misspelled_words (gpointer data)
2936 {
2937         EmpathyChat *chat = EMPATHY_CHAT (data);
2938         EmpathyChatPriv *priv = GET_PRIV (chat);
2939         GtkTextBuffer *buffer;
2940         GtkTextIter iter;
2941         gint length;
2942
2943         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2944
2945         gtk_text_buffer_get_end_iter (buffer, &iter);
2946         length = gtk_text_iter_get_offset (&iter);
2947         chat_input_text_buffer_insert_text_cb (buffer, &iter,
2948                                                NULL, length, chat);
2949
2950         priv->update_misspelled_words_id = 0;
2951
2952         return FALSE;
2953 }
2954
2955 static void
2956 conf_spell_checking_cb (GSettings *gsettings_chat,
2957                         const gchar *key,
2958                         gpointer user_data)
2959 {
2960         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2961         EmpathyChatPriv *priv = GET_PRIV (chat);
2962         gboolean spell_checker;
2963         GtkTextBuffer *buffer;
2964
2965         if (strcmp (key, EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED) != 0)
2966                 return;
2967
2968         spell_checker = g_settings_get_boolean (gsettings_chat,
2969                         EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED);
2970
2971         if (!empathy_spell_supported ()) {
2972                 spell_checker = FALSE;
2973         }
2974
2975         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2976
2977         if (spell_checker == priv->spell_checking_enabled) {
2978                 if (spell_checker) {
2979                         /* Possibly changed dictionaries,
2980                          * update misspelled words. Need to do so in idle
2981                          * so the spell checker is updated. */
2982                         priv->update_misspelled_words_id =
2983                                 g_idle_add (update_misspelled_words, chat);
2984                 }
2985
2986                 return;
2987         }
2988
2989         if (spell_checker) {
2990                 GtkTextIter iter;
2991
2992                 priv->notify_cursor_position_id = tp_g_signal_connect_object  (
2993                                 buffer, "notify::cursor-position",
2994                                 G_CALLBACK (chat_input_text_buffer_notify_cursor_position_cb),
2995                                 chat, 0);
2996                 priv->insert_text_id = tp_g_signal_connect_object  (
2997                                 buffer, "insert-text",
2998                                 G_CALLBACK (chat_input_text_buffer_insert_text_cb),
2999                                 chat, G_CONNECT_AFTER);
3000                 priv->delete_range_id = tp_g_signal_connect_object  (
3001                                 buffer, "delete-range",
3002                                 G_CALLBACK (chat_input_text_buffer_delete_range_cb),
3003                                 chat, G_CONNECT_AFTER);
3004
3005                 gtk_text_buffer_create_tag (buffer, "misspelled",
3006                                             "underline", PANGO_UNDERLINE_ERROR,
3007                                             NULL);
3008
3009                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
3010                                                   gtk_text_buffer_get_insert (buffer));
3011                 gtk_text_buffer_create_mark (buffer, "previous-cursor-position",
3012                                              &iter, TRUE);
3013
3014                 /* Mark misspelled words in the existing buffer.
3015                  * Need to do so in idle so the spell checker is updated. */
3016                 priv->update_misspelled_words_id =
3017                         g_idle_add (update_misspelled_words, chat);
3018         } else {
3019                 GtkTextTagTable *table;
3020                 GtkTextTag *tag;
3021
3022                 g_signal_handler_disconnect (buffer, priv->notify_cursor_position_id);
3023                 priv->notify_cursor_position_id = 0;
3024                 g_signal_handler_disconnect (buffer, priv->insert_text_id);
3025                 priv->insert_text_id = 0;
3026                 g_signal_handler_disconnect (buffer, priv->delete_range_id);
3027                 priv->delete_range_id = 0;
3028
3029                 table = gtk_text_buffer_get_tag_table (buffer);
3030                 tag = gtk_text_tag_table_lookup (table, "misspelled");
3031                 gtk_text_tag_table_remove (table, tag);
3032
3033                 gtk_text_buffer_delete_mark_by_name (buffer,
3034                                                      "previous-cursor-position");
3035         }
3036
3037         priv->spell_checking_enabled = spell_checker;
3038 }
3039
3040 static gboolean
3041 save_paned_pos_timeout (gpointer data)
3042 {
3043         EmpathyChat *self = data;
3044         gint hpaned_pos;
3045
3046         hpaned_pos = gtk_paned_get_position (GTK_PANED (self->priv->hpaned));
3047
3048         g_settings_set_int (self->priv->gsettings_ui,
3049                             EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS,
3050                             hpaned_pos);
3051
3052         return FALSE;
3053 }
3054
3055 static gboolean
3056 chat_hpaned_pos_changed_cb (GtkWidget* hpaned,
3057                 GParamSpec *spec,
3058                 gpointer user_data)
3059 {
3060         EmpathyChat *chat = EMPATHY_CHAT (user_data);
3061
3062         if (chat->priv->save_paned_pos_id != 0)
3063                 g_source_remove (chat->priv->save_paned_pos_id);
3064
3065         chat->priv->save_paned_pos_id = g_timeout_add_seconds (1,
3066                 save_paned_pos_timeout, chat);
3067
3068         return TRUE;
3069 }
3070
3071 static void
3072 chat_create_ui (EmpathyChat *chat)
3073 {
3074         EmpathyChatPriv *priv = GET_PRIV (chat);
3075         GtkBuilder      *gui;
3076         GList           *list = NULL;
3077         gchar           *filename;
3078         GtkTextBuffer   *buffer;
3079         EmpathyThemeManager *theme_mgr;
3080
3081         filename = empathy_file_lookup ("empathy-chat.ui",
3082                                         "libempathy-gtk");
3083         gui = empathy_builder_get_file (filename,
3084                                         "chat_widget", &priv->widget,
3085                                         "hpaned", &priv->hpaned,
3086                                         "vbox_left", &priv->vbox_left,
3087                                         "scrolled_window_chat", &priv->scrolled_window_chat,
3088                                         "scrolled_window_input", &priv->scrolled_window_input,
3089                                         "hbox_topic", &priv->hbox_topic,
3090                                         "expander_topic", &priv->expander_topic,
3091                                         "label_topic", &priv->label_topic,
3092                                         "scrolled_window_contacts", &priv->scrolled_window_contacts,
3093                                         "info_bar_vbox", &priv->info_bar_vbox,
3094                                         NULL);
3095
3096         empathy_builder_connect (gui, chat,
3097                 "expander_topic", "notify::expanded", chat_topic_expander_activate_cb,
3098                 "label_topic", "size-allocate", chat_topic_label_size_allocate_cb,
3099                 NULL);
3100
3101         g_free (filename);
3102
3103         /* Add message view. */
3104         theme_mgr = empathy_theme_manager_dup_singleton ();
3105         chat->view = empathy_theme_manager_create_view (theme_mgr);
3106         g_object_unref (theme_mgr);
3107         /* If this is a GtkTextView, it's set as a drag destination for text/plain
3108            and other types, even though it's non-editable and doesn't accept any
3109            drags.  This steals drag motion for anything inside the scrollbars,
3110            making drag destinations on chat windows far less useful.
3111          */
3112         gtk_drag_dest_unset (GTK_WIDGET (chat->view));
3113         g_signal_connect (chat->view, "focus_in_event",
3114                           G_CALLBACK (chat_text_view_focus_in_event_cb),
3115                           chat);
3116         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_chat),
3117                            GTK_WIDGET (chat->view));
3118         gtk_widget_show (GTK_WIDGET (chat->view));
3119
3120         /* Add input GtkTextView */
3121         chat->input_text_view = empathy_input_text_view_new ();
3122         g_signal_connect (chat->input_text_view, "notify::has-focus",
3123                           G_CALLBACK (chat_input_has_focus_notify_cb),
3124                           chat);
3125         g_signal_connect (chat->input_text_view, "key-press-event",
3126                           G_CALLBACK (chat_input_key_press_event_cb),
3127                           chat);
3128         g_signal_connect (chat->input_text_view, "realize",
3129                           G_CALLBACK (chat_input_realize_cb),
3130                           chat);
3131         g_signal_connect (chat->input_text_view, "button-press-event",
3132                           G_CALLBACK (chat_input_button_press_event_cb),
3133                           chat);
3134         g_signal_connect (chat->input_text_view, "populate-popup",
3135                           G_CALLBACK (chat_input_populate_popup_cb),
3136                           chat);
3137         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
3138         tp_g_signal_connect_object  (buffer, "changed",
3139                           G_CALLBACK (chat_input_text_buffer_changed_cb),
3140                           chat, 0);
3141         tp_g_signal_connect_object (priv->gsettings_chat,
3142                         "changed::" EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
3143                         G_CALLBACK (conf_spell_checking_cb), chat, 0);
3144         conf_spell_checking_cb (priv->gsettings_chat,
3145                                 EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED, chat);
3146         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_input),
3147                            chat->input_text_view);
3148         gtk_widget_show (chat->input_text_view);
3149
3150         /* Add the (invisible) search bar */
3151         priv->search_bar = empathy_search_bar_new (chat->view);
3152         gtk_box_pack_start (GTK_BOX(priv->vbox_left),
3153                             priv->search_bar,
3154                             FALSE, FALSE, 0);
3155         gtk_box_reorder_child (GTK_BOX(priv->vbox_left), priv->search_bar, 1);
3156
3157         /* Initialy hide the topic, will be shown if not empty */
3158         gtk_widget_hide (priv->hbox_topic);
3159
3160         g_signal_connect (priv->hpaned, "notify::position",
3161                           G_CALLBACK (chat_hpaned_pos_changed_cb),
3162                           chat);
3163
3164         /* Set widget focus order */
3165         list = g_list_append (NULL, priv->search_bar);
3166         list = g_list_append (list, priv->scrolled_window_input);
3167         gtk_container_set_focus_chain (GTK_CONTAINER (priv->vbox_left), list);
3168         g_list_free (list);
3169
3170         list = g_list_append (NULL, priv->vbox_left);
3171         list = g_list_append (list, priv->scrolled_window_contacts);
3172         gtk_container_set_focus_chain (GTK_CONTAINER (priv->hpaned), list);
3173         g_list_free (list);
3174
3175         list = g_list_append (NULL, priv->hpaned);
3176         list = g_list_append (list, priv->hbox_topic);
3177         gtk_container_set_focus_chain (GTK_CONTAINER (priv->widget), list);
3178         g_list_free (list);
3179
3180         /* Add the main widget in the chat widget */
3181         gtk_box_pack_start (GTK_BOX (chat), priv->widget, TRUE, TRUE, 0);
3182         g_object_unref (gui);
3183 }
3184
3185 static void
3186 chat_finalize (GObject *object)
3187 {
3188         EmpathyChat     *chat;
3189         EmpathyChatPriv *priv;
3190
3191         chat = EMPATHY_CHAT (object);
3192         priv = GET_PRIV (chat);
3193
3194         DEBUG ("Finalized: %p", object);
3195
3196         if (priv->update_misspelled_words_id != 0)
3197                 g_source_remove (priv->update_misspelled_words_id);
3198
3199         if (priv->save_paned_pos_id != 0)
3200                 g_source_remove (priv->save_paned_pos_id);
3201
3202         if (priv->contacts_visible_id != 0)
3203                 g_source_remove (priv->contacts_visible_id);
3204
3205         g_object_unref (priv->gsettings_chat);
3206         g_object_unref (priv->gsettings_ui);
3207
3208         g_list_foreach (priv->input_history, (GFunc) chat_input_history_entry_free, NULL);
3209         g_list_free (priv->input_history);
3210
3211         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
3212         g_list_free (priv->compositors);
3213
3214         chat_composing_remove_timeout (chat);
3215
3216         g_object_unref (priv->account_manager);
3217         g_object_unref (priv->log_manager);
3218
3219         if (priv->tp_chat) {
3220                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3221                         chat_invalidated_cb, chat);
3222                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3223                         chat_message_received_cb, chat);
3224                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3225                         chat_message_acknowledged_cb, chat);
3226                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3227                         chat_send_error_cb, chat);
3228                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3229                         chat_state_changed_cb, chat);
3230                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3231                         chat_members_changed_cb, chat);
3232                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3233                         chat_remote_contact_changed_cb, chat);
3234                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3235                         chat_title_changed_cb, chat);
3236                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3237                         chat_subject_changed_cb, chat);
3238                 empathy_tp_chat_leave (priv->tp_chat, "");
3239                 g_object_unref (priv->tp_chat);
3240         }
3241         if (priv->account) {
3242                 g_object_unref (priv->account);
3243         }
3244         if (priv->remote_contact) {
3245                 g_object_unref (priv->remote_contact);
3246         }
3247
3248         if (priv->block_events_timeout_id) {
3249                 g_source_remove (priv->block_events_timeout_id);
3250         }
3251
3252         g_free (priv->id);
3253         g_free (priv->name);
3254         g_free (priv->subject);
3255         g_completion_free (priv->completion);
3256
3257         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
3258 }
3259
3260 static void
3261 chat_constructed (GObject *object)
3262 {
3263         EmpathyChat *chat = EMPATHY_CHAT (object);
3264         EmpathyChatPriv *priv = GET_PRIV (chat);
3265
3266         if (priv->handle_type != TP_HANDLE_TYPE_ROOM) {
3267                 /* First display logs from the logger and then display pending messages */
3268                 chat_add_logs (chat);
3269         }
3270          else {
3271                 /* Just display pending messages for rooms */
3272                 priv->can_show_pending = TRUE;
3273                 show_pending_messages (chat);
3274         }
3275 }
3276
3277 static void
3278 empathy_chat_class_init (EmpathyChatClass *klass)
3279 {
3280         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
3281
3282         object_class->finalize = chat_finalize;
3283         object_class->get_property = chat_get_property;
3284         object_class->set_property = chat_set_property;
3285         object_class->constructed = chat_constructed;
3286
3287         g_object_class_install_property (object_class,
3288                                          PROP_TP_CHAT,
3289                                          g_param_spec_object ("tp-chat",
3290                                                               "Empathy tp chat",
3291                                                               "The tp chat object",
3292                                                               EMPATHY_TYPE_TP_CHAT,
3293                                                               G_PARAM_CONSTRUCT |
3294                                                               G_PARAM_READWRITE |
3295                                                               G_PARAM_STATIC_STRINGS));
3296         g_object_class_install_property (object_class,
3297                                          PROP_ACCOUNT,
3298                                          g_param_spec_object ("account",
3299                                                               "Account of the chat",
3300                                                               "The account of the chat",
3301                                                               TP_TYPE_ACCOUNT,
3302                                                               G_PARAM_READABLE |
3303                                                               G_PARAM_STATIC_STRINGS));
3304         g_object_class_install_property (object_class,
3305                                          PROP_ID,
3306                                          g_param_spec_string ("id",
3307                                                               "Chat's id",
3308                                                               "The id of the chat",
3309                                                               NULL,
3310                                                               G_PARAM_READABLE |
3311                                                               G_PARAM_STATIC_STRINGS));
3312         g_object_class_install_property (object_class,
3313                                          PROP_NAME,
3314                                          g_param_spec_string ("name",
3315                                                               "Chat's name",
3316                                                               "The name of the chat",
3317                                                               NULL,
3318                                                               G_PARAM_READABLE |
3319                                                               G_PARAM_STATIC_STRINGS));
3320         g_object_class_install_property (object_class,
3321                                          PROP_SUBJECT,
3322                                          g_param_spec_string ("subject",
3323                                                               "Chat's subject",
3324                                                               "The subject or topic of the chat",
3325                                                               NULL,
3326                                                               G_PARAM_READABLE |
3327                                                               G_PARAM_STATIC_STRINGS));
3328         g_object_class_install_property (object_class,
3329                                          PROP_REMOTE_CONTACT,
3330                                          g_param_spec_object ("remote-contact",
3331                                                               "The remote contact",
3332                                                               "The remote contact is any",
3333                                                               EMPATHY_TYPE_CONTACT,
3334                                                               G_PARAM_READABLE |
3335                                                               G_PARAM_STATIC_STRINGS));
3336         g_object_class_install_property (object_class,
3337                                          PROP_SHOW_CONTACTS,
3338                                          g_param_spec_boolean ("show-contacts",
3339                                                                "Contacts' visibility",
3340                                                                "The visibility of the contacts' list",
3341                                                                TRUE,
3342                                                                G_PARAM_READWRITE |
3343                                                                G_PARAM_STATIC_STRINGS));
3344
3345         g_object_class_install_property (object_class,
3346                                          PROP_SMS_CHANNEL,
3347                                          g_param_spec_boolean ("sms-channel",
3348                                                                "SMS Channel",
3349                                                                "TRUE if this channel is for sending SMSes",
3350                                                                FALSE,
3351                                                                G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3352
3353         g_object_class_install_property (object_class,
3354                                          PROP_N_MESSAGES_SENDING,
3355                                          g_param_spec_uint ("n-messages-sending",
3356                                                             "Num Messages Sending",
3357                                                             "The number of messages being sent",
3358                                                             0, G_MAXUINT, 0,
3359                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3360
3361         g_object_class_install_property (object_class,
3362                                          PROP_NB_UNREAD_MESSAGES,
3363                                          g_param_spec_uint ("nb-unread-messages",
3364                                                             "Num Unread Messages",
3365                                                             "The number of unread messages",
3366                                                             0, G_MAXUINT, 0,
3367                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3368
3369         signals[COMPOSING] =
3370                 g_signal_new ("composing",
3371                               G_OBJECT_CLASS_TYPE (object_class),
3372                               G_SIGNAL_RUN_LAST,
3373                               0,
3374                               NULL, NULL,
3375                               g_cclosure_marshal_generic,
3376                               G_TYPE_NONE,
3377                               1, G_TYPE_BOOLEAN);
3378
3379         /**
3380          * EmpathyChat::new-message:
3381          * @self: the #EmpathyChat
3382          * @message: the new message
3383          * @pending: whether the message was in the pending queue when @self
3384          *  was created
3385          * @should_highlight: %TRUE if the message mentions the local user
3386          */
3387         signals[NEW_MESSAGE] =
3388                 g_signal_new ("new-message",
3389                               G_OBJECT_CLASS_TYPE (object_class),
3390                               G_SIGNAL_RUN_LAST,
3391                               0,
3392                               NULL, NULL,
3393                               g_cclosure_marshal_generic,
3394                               G_TYPE_NONE,
3395                               3, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
3396
3397         signals[PART_COMMAND_ENTERED] =
3398                         g_signal_new ("part-command-entered",
3399                                   G_OBJECT_CLASS_TYPE (object_class),
3400                                   G_SIGNAL_RUN_LAST,
3401                                   0,
3402                                   NULL, NULL,
3403                                   g_cclosure_marshal_generic,
3404                                   G_TYPE_NONE,
3405                                   1, G_TYPE_STRV);
3406
3407         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
3408 }
3409
3410 static gboolean
3411 chat_block_events_timeout_cb (gpointer data)
3412 {
3413         EmpathyChatPriv *priv = GET_PRIV (data);
3414
3415         priv->block_events_timeout_id = 0;
3416
3417         return FALSE;
3418 }
3419
3420 static void
3421 account_manager_prepared_cb (GObject *source_object,
3422                              GAsyncResult *result,
3423                              gpointer user_data)
3424 {
3425         GList *accounts, *l;
3426         TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
3427         EmpathyChat *chat = user_data;
3428         GError *error = NULL;
3429
3430         if (!tp_proxy_prepare_finish (account_manager, result, &error)) {
3431                 DEBUG ("Failed to prepare the account manager: %s", error->message);
3432                 g_error_free (error);
3433                 return;
3434         }
3435
3436         accounts = tp_account_manager_get_valid_accounts (account_manager);
3437
3438         for (l = accounts; l != NULL; l = l->next) {
3439                 TpAccount *account = l->data;
3440                 tp_g_signal_connect_object (account, "status-changed",
3441                                              G_CALLBACK (chat_new_connection_cb),
3442                                              chat, 0);
3443         }
3444
3445         g_list_free (accounts);
3446 }
3447
3448 static void
3449 empathy_chat_init (EmpathyChat *chat)
3450 {
3451         EmpathyChatPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (chat,
3452                 EMPATHY_TYPE_CHAT, EmpathyChatPriv);
3453
3454         chat->priv = priv;
3455         priv->log_manager = tpl_log_manager_dup_singleton ();
3456         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
3457         priv->gsettings_ui = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
3458
3459         priv->contacts_width = g_settings_get_int (priv->gsettings_ui,
3460                 EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS);
3461         priv->input_history = NULL;
3462         priv->input_history_current = NULL;
3463         priv->account_manager = tp_account_manager_dup ();
3464
3465         tp_proxy_prepare_async (priv->account_manager, NULL,
3466                                           account_manager_prepared_cb, chat);
3467
3468         priv->show_contacts = g_settings_get_boolean (priv->gsettings_chat,
3469                         EMPATHY_PREFS_CHAT_SHOW_CONTACTS_IN_ROOMS);
3470
3471         /* Block events for some time to avoid having "has come online" or
3472          * "joined" messages. */
3473         priv->block_events_timeout_id =
3474                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
3475
3476         /* Add nick name completion */
3477         priv->completion = g_completion_new ((GCompletionFunc) empathy_contact_get_alias);
3478         g_completion_set_compare (priv->completion, chat_contacts_completion_func);
3479
3480         chat_create_ui (chat);
3481 }
3482
3483 EmpathyChat *
3484 empathy_chat_new (EmpathyTpChat *tp_chat)
3485 {
3486         return g_object_new (EMPATHY_TYPE_CHAT, "tp-chat", tp_chat, NULL);
3487 }
3488
3489 EmpathyTpChat *
3490 empathy_chat_get_tp_chat (EmpathyChat *chat)
3491 {
3492         EmpathyChatPriv *priv = GET_PRIV (chat);
3493
3494         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3495
3496         return priv->tp_chat;
3497 }
3498
3499 typedef struct
3500 {
3501         EmpathyChat *self;
3502         GtkWidget *info_bar;
3503         gulong response_id;
3504         GtkWidget *button;
3505         GtkWidget *label;
3506         GtkWidget *entry;
3507         GtkWidget *spinner;
3508         gchar *password;
3509 } PasswordData;
3510
3511 static void
3512 passwd_remember_button_cb (GtkButton *button,
3513                           PasswordData *data)
3514 {
3515         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3516 }
3517
3518 static void
3519 passwd_not_now_button_cb (GtkButton *button,
3520                           PasswordData *data)
3521 {
3522         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_NO);
3523 }
3524
3525 static void
3526 remember_password_infobar_response_cb (GtkWidget *info_bar,
3527                                        gint response_id,
3528                                        PasswordData *data)
3529 {
3530         EmpathyChatPriv *priv = GET_PRIV (data->self);
3531
3532         if (response_id == GTK_RESPONSE_OK) {
3533                 DEBUG ("Saving room password");
3534                 empathy_keyring_set_room_password_async (priv->account,
3535                                                          empathy_tp_chat_get_id (priv->tp_chat),
3536                                                          data->password,
3537                                                          NULL, NULL);
3538         }
3539
3540         gtk_widget_destroy (info_bar);
3541         g_free (data->password);
3542         g_slice_free (PasswordData, data);
3543 }
3544
3545 static void
3546 chat_prompt_to_save_password (EmpathyChat *self,
3547                               PasswordData *data)
3548 {
3549         GtkWidget *content_area;
3550         GtkWidget *hbox;
3551         GtkWidget *image;
3552         GtkWidget *label;
3553         GtkWidget *alig;
3554         GtkWidget *button;
3555
3556         /* save the password in case it needs to be saved */
3557         data->password = g_strdup (gtk_entry_get_text (GTK_ENTRY (data->entry)));
3558
3559         /* Remove all previous widgets */
3560         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (data->info_bar));
3561         gtk_container_forall (GTK_CONTAINER (content_area),
3562                               (GtkCallback) gtk_widget_destroy, NULL);
3563         data->button = NULL;
3564         data->label = NULL;
3565         data->entry = NULL;
3566         data->spinner = NULL;
3567
3568         gtk_info_bar_set_message_type (GTK_INFO_BAR (data->info_bar),
3569                                        GTK_MESSAGE_QUESTION);
3570
3571         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3572         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3573
3574         /* Add image */
3575         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3576                                           GTK_ICON_SIZE_DIALOG);
3577         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3578
3579         /* Add message */
3580         label = gtk_label_new (_("Would you like to store this password?"));
3581         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
3582
3583         /* Add 'Remember' button */
3584         alig = gtk_alignment_new (0, 0.5, 1, 0);
3585
3586         button = gtk_button_new_with_label (_("Remember"));
3587         gtk_container_add (GTK_CONTAINER (alig), button);
3588         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3589
3590         g_signal_connect (button, "clicked", G_CALLBACK (passwd_remember_button_cb),
3591                           data);
3592
3593         /* Add 'Not now' button */
3594         alig = gtk_alignment_new (0, 0.5, 1, 0);
3595
3596         button = gtk_button_new_with_label (_("Not now"));
3597         gtk_container_add (GTK_CONTAINER (alig), button);
3598         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3599
3600         g_signal_connect (button, "clicked", G_CALLBACK (passwd_not_now_button_cb),
3601                           data);
3602
3603         /* go! */
3604         g_signal_handler_disconnect (data->info_bar, data->response_id);
3605         g_signal_connect (data->info_bar, "response",
3606                           G_CALLBACK (remember_password_infobar_response_cb), data);
3607
3608         gtk_widget_show_all (data->info_bar);
3609 }
3610
3611 static void
3612 provide_password_cb (GObject *tp_chat,
3613                      GAsyncResult *res,
3614                      gpointer user_data)
3615 {
3616         PasswordData *data = user_data;
3617         EmpathyChat *self = data->self;
3618         EmpathyChatPriv *priv = GET_PRIV (self);
3619         GError *error = NULL;
3620
3621         if (!tp_channel_provide_password_finish (TP_CHANNEL (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                         /* entry */
3628                         gtk_entry_set_text (GTK_ENTRY (data->entry), "");
3629                         gtk_widget_set_sensitive (data->entry, TRUE);
3630                         gtk_widget_grab_focus (data->entry);
3631
3632                         /* info bar */
3633                         gtk_info_bar_set_message_type (
3634                             GTK_INFO_BAR (data->info_bar),
3635                             GTK_MESSAGE_ERROR);
3636
3637                         /* button */
3638                         gtk_widget_set_sensitive (data->button, TRUE);
3639                         gtk_button_set_label (GTK_BUTTON (data->button),
3640                             _("Retry"));
3641
3642                         /* label */
3643                         gtk_label_set_text (GTK_LABEL (data->label),
3644                             _("Wrong password; please try again:"));
3645
3646                         /* spinner */
3647                         gtk_spinner_stop (GTK_SPINNER (data->spinner));
3648                         gtk_widget_hide (data->spinner);
3649                 }
3650                 g_error_free (error);
3651                 return;
3652         }
3653
3654         if (empathy_keyring_is_available ()) {
3655                 /* ask whether they want to save the password */
3656                 chat_prompt_to_save_password (self, data);
3657         } else {
3658                 /* Get rid of the password info bar finally */
3659                 gtk_widget_destroy (data->info_bar);
3660                 g_slice_free (PasswordData, data);
3661         }
3662
3663         /* Room joined */
3664         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3665         gtk_widget_set_sensitive (self->input_text_view, TRUE);
3666         gtk_widget_grab_focus (self->input_text_view);
3667 }
3668
3669 static void
3670 password_infobar_response_cb (GtkWidget *info_bar,
3671                               gint response_id,
3672                               PasswordData *data)
3673 {
3674         EmpathyChatPriv *priv = GET_PRIV (data->self);
3675         const gchar *password;
3676
3677         if (response_id != GTK_RESPONSE_OK) {
3678                 gtk_widget_destroy (info_bar);
3679                 g_slice_free (PasswordData, data);
3680                 return;
3681         }
3682
3683         password = gtk_entry_get_text (GTK_ENTRY (data->entry));
3684
3685         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3686                                                 provide_password_cb, data);
3687
3688         gtk_widget_set_sensitive (data->button, FALSE);
3689         gtk_widget_set_sensitive (data->entry, FALSE);
3690
3691         gtk_spinner_start (GTK_SPINNER (data->spinner));
3692         gtk_widget_show (data->spinner);
3693 }
3694
3695 static void
3696 password_entry_activate_cb (GtkWidget *entry,
3697                           PasswordData *data)
3698 {
3699         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3700 }
3701
3702 static void
3703 passwd_join_button_cb (GtkButton *button,
3704                           PasswordData *data)
3705 {
3706         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3707 }
3708
3709 static void
3710 clear_icon_released_cb (GtkEntry *entry,
3711                         GtkEntryIconPosition icon_pos,
3712                         GdkEvent *event,
3713                         PasswordData *data)
3714 {
3715         gtk_entry_set_text (entry, "");
3716 }
3717
3718 static void
3719 password_entry_changed_cb (GtkEditable *entry,
3720                            PasswordData *data)
3721 {
3722         const gchar *str;
3723
3724         str = gtk_entry_get_text (GTK_ENTRY (entry));
3725
3726         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3727             GTK_ENTRY_ICON_SECONDARY, !EMP_STR_EMPTY (str));
3728 }
3729
3730 static void
3731 infobar_chat_invalidated_cb (TpProxy       *proxy,
3732                            guint          domain,
3733                            gint           code,
3734                            gchar         *message,
3735                            gpointer       password_infobar)
3736 {
3737         /* Destroy the password infobar whenever a channel is invalidated
3738          * so we don't have multiple infobars when the MUC is rejoined */
3739         gtk_widget_destroy (GTK_WIDGET (password_infobar));
3740 }
3741
3742 static void
3743 display_password_info_bar (EmpathyChat *self)
3744 {
3745         EmpathyChatPriv *priv = GET_PRIV (self);
3746         GtkWidget *info_bar;
3747         GtkWidget *content_area;
3748         GtkWidget *hbox;
3749         GtkWidget *image;
3750         GtkWidget *label;
3751         GtkWidget *entry;
3752         GtkWidget *alig;
3753         GtkWidget *button;
3754         GtkWidget *spinner;
3755         PasswordData *data;
3756
3757         data = g_slice_new0 (PasswordData);
3758
3759         info_bar = gtk_info_bar_new ();
3760         gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
3761             GTK_MESSAGE_QUESTION);
3762
3763         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
3764
3765         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3766         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3767
3768         /* Add image */
3769         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3770                                           GTK_ICON_SIZE_DIALOG);
3771         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3772
3773         /* Add message */
3774         label = gtk_label_new (_("This room is protected by a password:"));
3775         gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
3776
3777         /* Add password entry */
3778         entry = gtk_entry_new ();
3779         gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
3780         gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
3781
3782         gtk_entry_set_icon_from_stock (GTK_ENTRY (entry),
3783                                        GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
3784         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3785                                       GTK_ENTRY_ICON_SECONDARY, FALSE);
3786
3787         g_signal_connect (entry, "icon-release",
3788                           G_CALLBACK (clear_icon_released_cb), data);
3789         g_signal_connect (entry, "changed",
3790                           G_CALLBACK (password_entry_changed_cb), data);
3791
3792         g_signal_connect (entry, "activate",
3793                           G_CALLBACK (password_entry_activate_cb), data);
3794
3795         /* Focus the password entry once it's realized */
3796         g_signal_connect (entry, "realize", G_CALLBACK (gtk_widget_grab_focus), NULL);
3797
3798         /* Add 'Join' button */
3799         alig = gtk_alignment_new (0, 0.5, 1, 0);
3800
3801         button = gtk_button_new_with_label (_("Join"));
3802         gtk_container_add (GTK_CONTAINER (alig), button);
3803         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3804
3805         g_signal_connect (button, "clicked", G_CALLBACK (passwd_join_button_cb),
3806                           data);
3807
3808         /* Add spinner */
3809         spinner = gtk_spinner_new ();
3810         gtk_box_pack_end (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);
3811
3812         /* Save some data for messing around with later */
3813         data->self = self;
3814         data->info_bar = info_bar;
3815         data->button = button;
3816         data->label = label;
3817         data->entry = entry;
3818         data->spinner = spinner;
3819
3820         gtk_box_pack_start (GTK_BOX (priv->info_bar_vbox), info_bar,
3821                             TRUE, TRUE, 3);
3822         gtk_widget_show_all (hbox);
3823
3824         tp_g_signal_connect_object (priv->tp_chat,
3825                                   "invalidated", G_CALLBACK (infobar_chat_invalidated_cb),
3826                                   info_bar, 0);
3827
3828         data->response_id = g_signal_connect (info_bar, "response",
3829                                               G_CALLBACK (password_infobar_response_cb), data);
3830
3831         gtk_widget_show_all (info_bar);
3832         /* ... but hide the spinner */
3833         gtk_widget_hide (spinner);
3834
3835         /* prevent the user from typing anything */
3836         gtk_widget_set_sensitive (self->input_text_view, FALSE);
3837 }
3838
3839 static void
3840 provide_saved_password_cb (GObject *tp_chat,
3841                            GAsyncResult *res,
3842                            gpointer user_data)
3843 {
3844         EmpathyChat *self = user_data;
3845         EmpathyChatPriv *priv = GET_PRIV (self);
3846         GError *error = NULL;
3847
3848         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3849                                                       &error)) {
3850                 DEBUG ("error: %s", error->message);
3851                 /* FIXME: what should we do if that's another error? Close the channel?
3852                  * Display the raw D-Bus error to the user isn't very useful */
3853                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3854                         display_password_info_bar (self);
3855                         gtk_widget_set_sensitive (priv->hpaned, FALSE);
3856                 }
3857                 g_error_free (error);
3858                 return;
3859         }
3860
3861         /* Room joined */
3862         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3863         gtk_widget_grab_focus (self->input_text_view);
3864 }
3865
3866 static void
3867 chat_room_got_password_cb (GObject *source,
3868                            GAsyncResult *result,
3869                            gpointer user_data)
3870 {
3871         EmpathyChat *self = user_data;
3872         EmpathyChatPriv *priv = GET_PRIV (self);
3873         const gchar *password;
3874         GError *error = NULL;
3875
3876         password = empathy_keyring_get_room_password_finish (priv->account,
3877             result, &error);
3878
3879         if (error != NULL) {
3880                 DEBUG ("Couldn't get room password: %s\n", error->message);
3881                 g_clear_error (&error);
3882
3883                 display_password_info_bar (self);
3884                 gtk_widget_set_sensitive (priv->hpaned, FALSE);
3885                 return;
3886         }
3887
3888         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3889                                                 provide_saved_password_cb, self);
3890 }
3891
3892 static void
3893 chat_password_needed_changed_cb (EmpathyChat *self)
3894 {
3895         EmpathyChatPriv *priv = GET_PRIV (self);
3896
3897         if (tp_channel_password_needed (TP_CHANNEL (priv->tp_chat))) {
3898                 empathy_keyring_get_room_password_async (priv->account,
3899                                                          empathy_tp_chat_get_id (priv->tp_chat),
3900                                                          chat_room_got_password_cb, self);
3901         }
3902 }
3903
3904 static void
3905 chat_sms_channel_changed_cb (EmpathyChat *self)
3906 {
3907         EmpathyChatPriv *priv = GET_PRIV (self);
3908
3909         priv->sms_channel = tp_text_channel_is_sms_channel (
3910                 (TpTextChannel *) priv->tp_chat);
3911         g_object_notify (G_OBJECT (self), "sms-channel");
3912 }
3913
3914 static void
3915 chat_n_messages_sending_changed_cb (EmpathyChat *self)
3916 {
3917         g_object_notify (G_OBJECT (self), "n-messages-sending");
3918 }
3919
3920 void
3921 empathy_chat_set_tp_chat (EmpathyChat   *chat,
3922                           EmpathyTpChat *tp_chat)
3923 {
3924         EmpathyChatPriv *priv = GET_PRIV (chat);
3925
3926         g_return_if_fail (EMPATHY_IS_CHAT (chat));
3927         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
3928
3929         if (priv->tp_chat) {
3930                 return;
3931         }
3932
3933         if (priv->account) {
3934                 g_object_unref (priv->account);
3935         }
3936
3937         priv->tp_chat = g_object_ref (tp_chat);
3938         priv->account = g_object_ref (empathy_tp_chat_get_account (priv->tp_chat));
3939
3940         g_signal_connect (tp_chat, "invalidated",
3941                           G_CALLBACK (chat_invalidated_cb),
3942                           chat);
3943         g_signal_connect (tp_chat, "message-received-empathy",
3944                           G_CALLBACK (chat_message_received_cb),
3945                           chat);
3946         g_signal_connect (tp_chat, "message_acknowledged",
3947                           G_CALLBACK (chat_message_acknowledged_cb),
3948                           chat);
3949         g_signal_connect (tp_chat, "send-error",
3950                           G_CALLBACK (chat_send_error_cb),
3951                           chat);
3952         g_signal_connect (tp_chat, "chat-state-changed-empathy",
3953                           G_CALLBACK (chat_state_changed_cb),
3954                           chat);
3955         g_signal_connect (tp_chat, "members-changed",
3956                           G_CALLBACK (chat_members_changed_cb),
3957                           chat);
3958         g_signal_connect (tp_chat, "member-renamed",
3959                           G_CALLBACK (chat_member_renamed_cb),
3960                           chat);
3961         g_signal_connect_swapped (tp_chat, "notify::remote-contact",
3962                                   G_CALLBACK (chat_remote_contact_changed_cb),
3963                                   chat);
3964         g_signal_connect_swapped (tp_chat, "notify::password-needed",
3965                                   G_CALLBACK (chat_password_needed_changed_cb),
3966                                   chat);
3967         g_signal_connect_swapped (tp_chat, "notify::is-sms-channel",
3968                                   G_CALLBACK (chat_sms_channel_changed_cb),
3969                                   chat);
3970         g_signal_connect_swapped (tp_chat, "notify::n-messages-sending",
3971                                   G_CALLBACK (chat_n_messages_sending_changed_cb),
3972                                   chat);
3973         g_signal_connect_swapped (tp_chat, "notify::title",
3974                                   G_CALLBACK (chat_title_changed_cb),
3975                                   chat);
3976         g_signal_connect_swapped (tp_chat, "notify::subject",
3977                                   G_CALLBACK (chat_subject_changed_cb),
3978                                   chat);
3979
3980         /* Get initial value of properties */
3981         chat_sms_channel_changed_cb (chat);
3982         chat_remote_contact_changed_cb (chat);
3983         chat_title_changed_cb (chat);
3984         chat_subject_changed_cb (chat);
3985
3986         if (chat->input_text_view) {
3987                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
3988                 if (priv->block_events_timeout_id == 0) {
3989                         empathy_chat_view_append_event (chat->view, _("Connected"));
3990                 }
3991         }
3992
3993         g_object_notify (G_OBJECT (chat), "tp-chat");
3994         g_object_notify (G_OBJECT (chat), "id");
3995         g_object_notify (G_OBJECT (chat), "account");
3996
3997         /* This is a noop when tp-chat is set at object construction time and causes
3998          * the pending messages to be show when it's set on the object after it has
3999          * been created */
4000         show_pending_messages (chat);
4001
4002         /* check if a password is needed */
4003         chat_password_needed_changed_cb (chat);
4004 }
4005
4006 TpAccount *
4007 empathy_chat_get_account (EmpathyChat *chat)
4008 {
4009         EmpathyChatPriv *priv = GET_PRIV (chat);
4010
4011         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4012
4013         return priv->account;
4014 }
4015
4016 const gchar *
4017 empathy_chat_get_id (EmpathyChat *chat)
4018 {
4019         EmpathyChatPriv *priv = GET_PRIV (chat);
4020
4021         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4022
4023         return priv->id;
4024 }
4025
4026 gchar *
4027 empathy_chat_dup_name (EmpathyChat *chat)
4028 {
4029         EmpathyChatPriv *priv = GET_PRIV (chat);
4030         const gchar *ret;
4031
4032         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4033
4034         ret = priv->name;
4035
4036         if (!ret && priv->remote_contact) {
4037                 ret = empathy_contact_get_alias (priv->remote_contact);
4038         }
4039
4040         if (!ret)
4041                 ret = priv->id;
4042
4043         if (!ret)
4044                 ret = _("Conversation");
4045
4046         if (priv->sms_channel)
4047                 /* Translators: this string is a something like
4048                  * "Escher Cat (SMS)" */
4049                 return g_strdup_printf (_("%s (SMS)"), ret);
4050         else
4051                 return g_strdup (ret);
4052 }
4053
4054 const gchar *
4055 empathy_chat_get_subject (EmpathyChat *chat)
4056 {
4057         EmpathyChatPriv *priv = GET_PRIV (chat);
4058
4059         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4060
4061         return priv->subject;
4062 }
4063
4064 EmpathyContact *
4065 empathy_chat_get_remote_contact (EmpathyChat *chat)
4066 {
4067         EmpathyChatPriv *priv = GET_PRIV (chat);
4068
4069         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4070
4071         return priv->remote_contact;
4072 }
4073
4074 GtkWidget *
4075 empathy_chat_get_contact_menu (EmpathyChat *chat)
4076 {
4077         EmpathyChatPriv *priv = GET_PRIV (chat);
4078         GtkWidget       *menu = NULL;
4079         FolksIndividual *individual;
4080         TpContact *contact;
4081
4082         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4083
4084         if (priv->remote_contact == NULL)
4085                 return NULL;
4086
4087         contact = empathy_contact_get_tp_contact (priv->remote_contact);
4088         if (contact == NULL)
4089                 return NULL;
4090
4091         individual = empathy_create_individual_from_tp_contact (contact);
4092         if (individual == NULL)
4093                 return NULL;
4094
4095         menu = empathy_individual_menu_new (individual,
4096                                          EMPATHY_INDIVIDUAL_FEATURE_CALL |
4097                                          EMPATHY_INDIVIDUAL_FEATURE_LOG |
4098                                          EMPATHY_INDIVIDUAL_FEATURE_INFO |
4099                                          EMPATHY_INDIVIDUAL_FEATURE_BLOCK, NULL);
4100
4101         g_object_unref (individual);
4102
4103         return menu;
4104 }
4105
4106 void
4107 empathy_chat_clear (EmpathyChat *chat)
4108 {
4109         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4110
4111         empathy_chat_view_clear (chat->view);
4112 }
4113
4114 void
4115 empathy_chat_scroll_down (EmpathyChat *chat)
4116 {
4117         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4118
4119         empathy_chat_view_scroll_down (chat->view);
4120 }
4121
4122 void
4123 empathy_chat_cut (EmpathyChat *chat)
4124 {
4125         GtkTextBuffer *buffer;
4126
4127         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4128
4129         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4130         if (gtk_text_buffer_get_has_selection (buffer)) {
4131                 GtkClipboard *clipboard;
4132
4133                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4134
4135                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
4136         }
4137 }
4138
4139 void
4140 empathy_chat_copy (EmpathyChat *chat)
4141 {
4142         GtkTextBuffer *buffer;
4143
4144         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4145
4146         if (empathy_chat_view_get_has_selection (chat->view)) {
4147                 empathy_chat_view_copy_clipboard (chat->view);
4148                 return;
4149         }
4150
4151         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4152         if (gtk_text_buffer_get_has_selection (buffer)) {
4153                 GtkClipboard *clipboard;
4154
4155                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4156
4157                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
4158         }
4159         else {
4160                 gint start_offset;
4161                 gint end_offset;
4162                 EmpathyChatPriv *priv = GET_PRIV (chat);
4163
4164                 if (gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
4165                                                                &start_offset,
4166                                                                &end_offset)) {
4167                         gchar *start;
4168                         gchar *end;
4169                         gchar *selection;
4170                         const gchar *topic;
4171                         GtkClipboard *clipboard;
4172
4173                         topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
4174                         start = g_utf8_offset_to_pointer (topic, start_offset);
4175                         end = g_utf8_offset_to_pointer (topic, end_offset);
4176                         selection = g_strndup (start, end - start);
4177
4178                         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4179                         gtk_clipboard_set_text (clipboard, selection, -1);
4180
4181                         g_free (selection);
4182                 }
4183         }
4184 }
4185
4186 void
4187 empathy_chat_paste (EmpathyChat *chat)
4188 {
4189         GtkTextBuffer *buffer;
4190         GtkClipboard  *clipboard;
4191         EmpathyChatPriv *priv;
4192
4193         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4194
4195         priv = GET_PRIV (chat);
4196
4197         if (gtk_widget_get_visible (priv->search_bar)) {
4198                 empathy_search_bar_paste_clipboard (EMPATHY_SEARCH_BAR (priv->search_bar));
4199                 return;
4200         }
4201
4202         if (priv->tp_chat == NULL ||
4203             !gtk_widget_is_sensitive (chat->input_text_view))
4204                 return;
4205
4206         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4207         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4208
4209         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
4210 }
4211
4212 void
4213 empathy_chat_find (EmpathyChat *chat)
4214 {
4215         EmpathyChatPriv *priv;
4216
4217         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4218
4219         priv = GET_PRIV (chat);
4220
4221         empathy_search_bar_show (EMPATHY_SEARCH_BAR (priv->search_bar));
4222 }
4223
4224 void
4225 empathy_chat_correct_word (EmpathyChat  *chat,
4226                           GtkTextIter *start,
4227                           GtkTextIter *end,
4228                           const gchar *new_word)
4229 {
4230         GtkTextBuffer *buffer;
4231
4232         g_return_if_fail (chat != NULL);
4233         g_return_if_fail (new_word != NULL);
4234
4235         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4236
4237         gtk_text_buffer_delete (buffer, start, end);
4238         gtk_text_buffer_insert (buffer, start,
4239                                 new_word,
4240                                 -1);
4241 }
4242
4243 gboolean
4244 empathy_chat_is_room (EmpathyChat *chat)
4245 {
4246         EmpathyChatPriv *priv = GET_PRIV (chat);
4247
4248         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
4249
4250         return (priv->handle_type == TP_HANDLE_TYPE_ROOM);
4251 }
4252
4253 guint
4254 empathy_chat_get_nb_unread_messages (EmpathyChat *self)
4255 {
4256         EmpathyChatPriv *priv = GET_PRIV (self);
4257
4258         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4259
4260         return priv->unread_messages;
4261 }
4262
4263 /* called when the messages have been read by user */
4264 void
4265 empathy_chat_messages_read (EmpathyChat *self)
4266 {
4267         EmpathyChatPriv *priv = GET_PRIV (self);
4268
4269         g_return_if_fail (EMPATHY_IS_CHAT (self));
4270
4271         /* FIXME: See Bug#610994, See comments about it in EmpathyChatPriv
4272          * definition. If we are still retrieving the backlogs, do not ACK */
4273         if (priv->retrieving_backlogs)
4274                 return;
4275
4276         if (priv->tp_chat != NULL) {
4277                 tp_text_channel_ack_all_pending_messages_async (
4278                         TP_TEXT_CHANNEL (priv->tp_chat), NULL, NULL);
4279         }
4280
4281         if (priv->unread_messages_when_offline > 0) {
4282                 /* We can't ack those as the connection has gone away so just consider
4283                 * them as read. */
4284                 priv->unread_messages -= priv->unread_messages_when_offline;
4285                 g_object_notify (G_OBJECT (self), "nb-unread-messages");
4286                 priv->unread_messages_when_offline = 0;
4287         }
4288 }
4289
4290 /* Return TRUE if on of the contacts in this chat is composing */
4291 gboolean
4292 empathy_chat_is_composing (EmpathyChat *chat)
4293 {
4294   return chat->priv->compositors != NULL;
4295 }
4296
4297 gboolean
4298 empathy_chat_is_sms_channel (EmpathyChat *self)
4299 {
4300         EmpathyChatPriv *priv = GET_PRIV (self);
4301
4302         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4303
4304         return priv->sms_channel;
4305 }
4306
4307 guint
4308 empathy_chat_get_n_messages_sending (EmpathyChat *self)
4309 {
4310         EmpathyChatPriv *priv;
4311
4312         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4313
4314         priv = GET_PRIV (self);
4315
4316         if (priv->tp_chat == NULL) {
4317                 return 0;
4318         } else {
4319                 guint n_messages;
4320
4321                 g_object_get (priv->tp_chat,
4322                         "n-messages-sending", &n_messages,
4323                         NULL);
4324
4325                 return n_messages;
4326         }
4327 }
4328
4329 gchar *
4330 empathy_chat_dup_text (EmpathyChat *self)
4331 {
4332         GtkTextBuffer *buffer;
4333         GtkTextIter     start, end;
4334
4335         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4336
4337         gtk_text_buffer_get_bounds (buffer, &start, &end);
4338         return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4339 }
4340
4341 void
4342 empathy_chat_set_text (EmpathyChat *self,
4343                        const gchar *text)
4344 {
4345         GtkTextBuffer *buffer;
4346
4347         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4348
4349         gtk_text_buffer_set_text (buffer, text, -1);
4350 }