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 void
1387 chat_message_received (EmpathyChat *chat,
1388         EmpathyMessage *message,
1389         gboolean pending)
1390 {
1391         EmpathyChatPriv *priv = GET_PRIV (chat);
1392         EmpathyContact  *sender;
1393
1394         sender = empathy_message_get_sender (message);
1395
1396         if (empathy_message_is_edit (message)) {
1397                 DEBUG ("Editing message '%s' to '%s'",
1398                         empathy_message_get_supersedes (message),
1399                         empathy_message_get_body (message));
1400
1401                 empathy_chat_view_edit_message (chat->view, message);
1402         } else {
1403                 gboolean should_highlight = empathy_message_should_highlight (message);
1404                 DEBUG ("Appending new message '%s' from %s (%d)",
1405                         empathy_message_get_token (message),
1406                         empathy_contact_get_alias (sender),
1407                         empathy_contact_get_handle (sender));
1408
1409                 empathy_chat_view_append_message (chat->view, message, should_highlight);
1410
1411                 if (empathy_message_is_incoming (message)) {
1412                         priv->unread_messages++;
1413                         g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1414                 }
1415
1416                 g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, pending,
1417                                should_highlight);
1418         }
1419
1420         /* We received a message so the contact is no longer
1421          * composing */
1422         chat_state_changed_cb (priv->tp_chat, sender,
1423                                TP_CHANNEL_CHAT_STATE_ACTIVE,
1424                                chat);
1425 }
1426
1427 static void
1428 chat_message_received_cb (EmpathyTpChat  *tp_chat,
1429                           EmpathyMessage *message,
1430                           EmpathyChat    *chat)
1431 {
1432         chat_message_received (chat, message, FALSE);
1433 }
1434
1435 static void
1436 chat_message_acknowledged_cb (EmpathyTpChat  *tp_chat,
1437                               EmpathyMessage *message,
1438                               EmpathyChat    *chat)
1439 {
1440         EmpathyChatPriv *priv = GET_PRIV (chat);
1441
1442         empathy_chat_view_message_acknowledged (chat->view,
1443             message);
1444
1445         if (!empathy_message_is_edit (message)) {
1446                 priv->unread_messages--;
1447                 g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1448         }
1449 }
1450
1451 static void
1452 append_balance_error (EmpathyChat *chat,
1453                       const gchar *message_body)
1454 {
1455         EmpathyChatPriv *priv = GET_PRIV (chat);
1456         TpConnection *conn = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
1457         const gchar *uri = tp_connection_get_balance_uri (conn);
1458         const gchar *error = _("insufficient balance to send message");
1459         gchar *str, *str_markup = NULL;
1460
1461         if (message_body != NULL) {
1462                 str = g_strdup_printf (_("Error sending message '%s': %s"), message_body, error);
1463         } else {
1464                 str = g_strdup_printf (_("Error sending message: %s"), error);
1465         }
1466
1467         if (!tp_str_empty (uri)) {
1468                 /* translators: error used when user doesn't have enough credit on his
1469                  * account to send the message. */
1470                 gchar *markup_error = g_strdup_printf (_("insufficient balance to send message."
1471                                                          " <a href='%s'>Top up</a>."), uri);
1472
1473                 if (message_body != NULL) {
1474                         gchar *escaped_body = g_markup_escape_text (message_body, -1);
1475
1476                         str_markup = g_strdup_printf (_("Error sending message '%s': %s"),
1477                                 escaped_body, markup_error);
1478
1479                         g_free (escaped_body);
1480                 } else {
1481                         str_markup = g_strdup_printf (_("Error sending message: %s"), markup_error);
1482                 }
1483
1484                 g_free (markup_error);
1485         }
1486
1487         if (str_markup != NULL)
1488                 empathy_chat_view_append_event_markup (chat->view, str_markup, str);
1489         else
1490                 empathy_chat_view_append_event (chat->view, str);
1491
1492         g_free (str);
1493         g_free (str_markup);
1494 }
1495
1496 static void
1497 chat_send_error_cb (EmpathyTpChat          *tp_chat,
1498                     const gchar            *message_body,
1499                     TpChannelTextSendError  error_code,
1500                     const gchar            *dbus_error,
1501                     EmpathyChat            *chat)
1502 {
1503         const gchar *error = NULL;
1504         gchar       *str;
1505
1506         if (!tp_strdiff (dbus_error, TP_ERROR_STR_INSUFFICIENT_BALANCE)) {
1507                 append_balance_error (chat, message_body);
1508                 return;
1509         } else if (!tp_strdiff (dbus_error, TP_ERROR_STR_NOT_CAPABLE)) {
1510                 error = _("not capable");
1511         }
1512
1513         if (error == NULL) {
1514                 /* if we didn't find a dbus-error, try the old error */
1515                 switch (error_code) {
1516                 case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
1517                         error = _("offline");
1518                         break;
1519                 case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
1520                         error = _("invalid contact");
1521                         break;
1522                 case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
1523                         error = _("permission denied");
1524                         break;
1525                 case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
1526                         error = _("too long message");
1527                         break;
1528                 case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
1529                         error = _("not implemented");
1530                         break;
1531                 case TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN:
1532                 default:
1533                         error = _("unknown");
1534                         break;
1535                 }
1536         }
1537
1538         if (message_body != NULL) {
1539                         str = g_strdup_printf (_("Error sending message '%s': %s"),
1540                                 message_body, error);
1541         }
1542         else {
1543                         str = g_strdup_printf (_("Error sending message: %s"), error);
1544         }
1545
1546         empathy_chat_view_append_event (chat->view, str);
1547         g_free (str);
1548 }
1549
1550 static void
1551 chat_topic_label_size_allocate_cb (GtkLabel *label,
1552                                    GtkAllocation *allocation,
1553                                    EmpathyChat *chat)
1554 {
1555         EmpathyChatPriv *priv = GET_PRIV (chat);
1556
1557         if (!gtk_label_get_line_wrap (label)) {
1558                 if (pango_layout_is_ellipsized (gtk_label_get_layout (label)))
1559                         gtk_widget_show (priv->expander_topic);
1560                 else
1561                         gtk_widget_hide (priv->expander_topic);
1562
1563                 return;
1564         }
1565 }
1566
1567 static void
1568 chat_topic_expander_activate_cb (GtkExpander *expander,
1569                                  GParamSpec *param_spec,
1570                                  EmpathyChat *chat)
1571 {
1572         EmpathyChatPriv *priv = GET_PRIV (chat);
1573
1574         if (gtk_expander_get_expanded (expander)) {
1575                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_NONE);
1576                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), TRUE);
1577         } else {
1578                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_END);
1579                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), FALSE);
1580         }
1581 }
1582
1583 static void
1584 chat_subject_changed_cb (EmpathyChat *chat)
1585 {
1586         EmpathyChatPriv *priv = GET_PRIV (chat);
1587
1588                 g_free (priv->subject);
1589                 priv->subject = g_strdup (empathy_tp_chat_get_subject (priv->tp_chat));
1590                 g_object_notify (G_OBJECT (chat), "subject");
1591
1592                 if (EMP_STR_EMPTY (priv->subject)) {
1593                         gtk_widget_hide (priv->hbox_topic);
1594                 } else {
1595                         gchar *markup_topic;
1596                         gchar *markup_text;
1597
1598                         markup_topic = empathy_add_link_markup (priv->subject);
1599                         markup_text = g_strdup_printf ("<span weight=\"bold\">%s</span> %s",
1600                                 _("Topic:"), markup_topic);
1601
1602                         gtk_label_set_markup (GTK_LABEL (priv->label_topic), markup_text);
1603                         g_free (markup_text);
1604                         g_free (markup_topic);
1605
1606                         gtk_widget_show (priv->hbox_topic);
1607                 }
1608                 if (priv->block_events_timeout_id == 0) {
1609                         gchar *str;
1610
1611                         if (!EMP_STR_EMPTY (priv->subject)) {
1612                                 str = g_strdup_printf (_("Topic set to: %s"), priv->subject);
1613                         } else {
1614                                 str = g_strdup (_("No topic defined"));
1615                         }
1616                         empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
1617                         g_free (str);
1618                 }
1619 }
1620
1621 static void
1622 chat_title_changed_cb (EmpathyChat *chat)
1623 {
1624         EmpathyChatPriv *priv = GET_PRIV (chat);
1625
1626                 g_free (priv->name);
1627                 priv->name = g_strdup (empathy_tp_chat_get_title (priv->tp_chat));
1628                 g_object_notify (G_OBJECT (chat), "name");
1629 }
1630
1631 static gboolean
1632 chat_input_text_get_word_from_iter (GtkTextIter   *iter,
1633                                     GtkTextIter   *start,
1634                                     GtkTextIter   *end)
1635 {
1636         GtkTextIter word_start = *iter;
1637         GtkTextIter word_end = *iter;
1638         GtkTextIter tmp;
1639
1640         if (gtk_text_iter_inside_word (&word_end) &&
1641                         !gtk_text_iter_ends_word (&word_end)) {
1642                 gtk_text_iter_forward_word_end (&word_end);
1643         }
1644
1645         tmp = word_end;
1646
1647         if (gtk_text_iter_get_char (&tmp) == '\'') {
1648                 gtk_text_iter_forward_char (&tmp);
1649
1650                 if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1651                         gtk_text_iter_forward_word_end (&word_end);
1652                 }
1653         }
1654
1655
1656         if (gtk_text_iter_inside_word (&word_start) ||
1657                         gtk_text_iter_ends_word (&word_start)) {
1658                 if (!gtk_text_iter_starts_word (&word_start) ||
1659                                 gtk_text_iter_equal (&word_start, &word_end)) {
1660                         gtk_text_iter_backward_word_start (&word_start);
1661                 }
1662
1663                 tmp = word_start;
1664                 gtk_text_iter_backward_char (&tmp);
1665
1666                 if (gtk_text_iter_get_char (&tmp) == '\'') {
1667                         gtk_text_iter_backward_char (&tmp);
1668
1669                         if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1670                                 gtk_text_iter_backward_word_start (&word_start);
1671                         }
1672                 }
1673         }
1674
1675         *start = word_start;
1676         *end = word_end;
1677         return TRUE;
1678 }
1679
1680 static void
1681 chat_input_text_buffer_insert_text_cb (GtkTextBuffer *buffer,
1682                                        GtkTextIter   *location,
1683                                        gchar         *text,
1684                                        gint           len,
1685                                        EmpathyChat   *chat)
1686 {
1687         GtkTextIter iter, pos;
1688
1689         /* Remove all misspelled tags in the inserted text.
1690          * This happens when text is inserted within a misspelled word. */
1691         gtk_text_buffer_get_iter_at_offset (buffer, &iter,
1692                                             gtk_text_iter_get_offset (location) - len);
1693         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1694                                             &iter, location);
1695
1696         gtk_text_buffer_get_iter_at_mark (buffer, &pos, gtk_text_buffer_get_insert (buffer));
1697
1698         do {
1699                 GtkTextIter start, end;
1700                 gchar *str;
1701
1702                 if (!chat_input_text_get_word_from_iter (&iter, &start, &end))
1703                         continue;
1704
1705                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1706
1707                 if (gtk_text_iter_in_range (&pos, &start, &end) ||
1708                                 gtk_text_iter_equal (&pos, &end) ||
1709                                 empathy_spell_check (str)) {
1710                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
1711                 } else {
1712                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
1713                 }
1714
1715                 g_free (str);
1716
1717         } while (gtk_text_iter_forward_word_end (&iter) &&
1718                  gtk_text_iter_compare (&iter, location) <= 0);
1719 }
1720
1721 static void
1722 chat_input_text_buffer_delete_range_cb (GtkTextBuffer *buffer,
1723                                         GtkTextIter   *start,
1724                                         GtkTextIter   *end,
1725                                         EmpathyChat   *chat)
1726 {
1727         GtkTextIter word_start, word_end;
1728
1729         if (chat_input_text_get_word_from_iter (start, &word_start, &word_end)) {
1730                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1731                                                     &word_start, &word_end);
1732         }
1733 }
1734
1735 static void
1736 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
1737                                    EmpathyChat    *chat)
1738 {
1739         if (gtk_text_buffer_get_char_count (buffer) == 0) {
1740                 chat_composing_stop (chat);
1741         } else {
1742                 chat_composing_start (chat);
1743         }
1744 }
1745
1746 static void
1747 chat_input_text_buffer_notify_cursor_position_cb (GtkTextBuffer *buffer,
1748                                                   GParamSpec    *pspec,
1749                                                   EmpathyChat    *chat)
1750 {
1751         GtkTextIter pos;
1752         GtkTextIter prev_pos;
1753         GtkTextIter word_start;
1754         GtkTextIter word_end;
1755         GtkTextMark *mark;
1756         gchar *str;
1757
1758         mark = gtk_text_buffer_get_mark (buffer, "previous-cursor-position");
1759
1760         gtk_text_buffer_get_iter_at_mark (buffer, &pos,
1761                                           gtk_text_buffer_get_insert (buffer));
1762         gtk_text_buffer_get_iter_at_mark (buffer, &prev_pos, mark);
1763
1764         if (!chat_input_text_get_word_from_iter (&prev_pos, &word_start, &word_end))
1765                 goto out;
1766
1767         if (!gtk_text_iter_in_range (&pos, &word_start, &word_end) &&
1768                         !gtk_text_iter_equal (&pos, &word_end)) {
1769                 str = gtk_text_buffer_get_text (buffer,
1770                                         &word_start, &word_end, FALSE);
1771
1772                 if (!empathy_spell_check (str)) {
1773                         gtk_text_buffer_apply_tag_by_name (buffer,
1774                                         "misspelled", &word_start, &word_end);
1775                 } else {
1776                         gtk_text_buffer_remove_tag_by_name (buffer,
1777                                         "misspelled", &word_start, &word_end);
1778                 }
1779
1780                 g_free (str);
1781         }
1782
1783 out:
1784         gtk_text_buffer_move_mark (buffer, mark, &pos);
1785 }
1786
1787 static gboolean
1788 empathy_isspace_cb (gunichar c,
1789                  gpointer data)
1790 {
1791         return g_unichar_isspace (c);
1792 }
1793
1794 static gboolean
1795 chat_input_key_press_event_cb (GtkWidget   *widget,
1796                                GdkEventKey *event,
1797                                EmpathyChat *chat)
1798 {
1799         EmpathyChatPriv *priv;
1800         GtkAdjustment  *adj;
1801         gdouble         val;
1802         GtkWidget      *text_view_sw;
1803
1804         priv = GET_PRIV (chat);
1805
1806         priv->most_recent_event_type = event->type;
1807
1808         /* Catch ctrl+up/down so we can traverse messages we sent */
1809         if ((event->state & GDK_CONTROL_MASK) &&
1810             (event->keyval == GDK_KEY_Up ||
1811              event->keyval == GDK_KEY_Down)) {
1812                 GtkTextBuffer *buffer;
1813                 const gchar   *str;
1814
1815                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1816                 chat_input_history_update (chat, buffer);
1817
1818                 if (event->keyval == GDK_KEY_Up) {
1819                         str = chat_input_history_get_next (chat);
1820                 } else {
1821                         str = chat_input_history_get_prev (chat);
1822                 }
1823
1824                 g_signal_handlers_block_by_func (buffer,
1825                                                  chat_input_text_buffer_changed_cb,
1826                                                  chat);
1827                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
1828                 g_signal_handlers_unblock_by_func (buffer,
1829                                                    chat_input_text_buffer_changed_cb,
1830                                                    chat);
1831
1832                 return TRUE;
1833         }
1834
1835         /* Catch enter but not ctrl/shift-enter */
1836         if (IS_ENTER (event->keyval) &&
1837             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1838                 GtkTextView *view;
1839
1840                 /* This is to make sure that kinput2 gets the enter. And if
1841                  * it's handled there we shouldn't send on it. This is because
1842                  * kinput2 uses Enter to commit letters. See:
1843                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
1844                  */
1845
1846                 view = GTK_TEXT_VIEW (chat->input_text_view);
1847                 if (gtk_text_view_im_context_filter_keypress (view, event)) {
1848                         gtk_text_view_reset_im_context (view);
1849                         return TRUE;
1850                 }
1851
1852                 chat_input_text_view_send (chat);
1853                 return TRUE;
1854         }
1855
1856         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
1857
1858         if (IS_ENTER (event->keyval) &&
1859             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1860                 /* Newline for shift/control-enter. */
1861                 return FALSE;
1862         }
1863         if (!(event->state & GDK_CONTROL_MASK) &&
1864             event->keyval == GDK_KEY_Page_Up) {
1865                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1866                 gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) - gtk_adjustment_get_page_size (adj));
1867                 return TRUE;
1868         }
1869         if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
1870             event->keyval == GDK_KEY_Page_Down) {
1871                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1872                 val = MIN (gtk_adjustment_get_value (adj) + gtk_adjustment_get_page_size (adj),
1873                            gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj));
1874                 gtk_adjustment_set_value (adj, val);
1875                 return TRUE;
1876         }
1877         if (event->keyval == GDK_KEY_Escape) {
1878                 empathy_search_bar_hide (EMPATHY_SEARCH_BAR (priv->search_bar));
1879         }
1880         if (!(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) &&
1881             event->keyval == GDK_KEY_Tab) {
1882                 GtkTextBuffer *buffer;
1883                 GtkTextIter    start, current;
1884                 gchar         *nick, *completed;
1885                 GList         *list, *completed_list;
1886                 gboolean       is_start_of_buffer;
1887
1888                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (EMPATHY_CHAT (chat)->input_text_view));
1889                 gtk_text_buffer_get_iter_at_mark (buffer, &current, gtk_text_buffer_get_insert (buffer));
1890
1891                 /* Get the start of the nick to complete. */
1892                 gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
1893                 if (gtk_text_iter_backward_find_char (&start, &empathy_isspace_cb, NULL, NULL)) {
1894                         gtk_text_iter_set_offset (&start, gtk_text_iter_get_offset (&start) + 1);
1895                 }
1896                 is_start_of_buffer = gtk_text_iter_is_start (&start);
1897
1898                 list = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (priv->tp_chat));
1899                 g_completion_add_items (priv->completion, list);
1900
1901                 nick = gtk_text_buffer_get_text (buffer, &start, &current, FALSE);
1902                 completed_list = g_completion_complete (priv->completion,
1903                                                         nick,
1904                                                         &completed);
1905
1906                 g_free (nick);
1907
1908                 if (completed) {
1909                         guint        len;
1910                         const gchar *text;
1911                         GString     *message = NULL;
1912                         GList       *l;
1913
1914                         gtk_text_buffer_delete (buffer, &start, &current);
1915
1916                         len = g_list_length (completed_list);
1917
1918                         if (len == 1) {
1919                                 /* If we only have one hit, use that text
1920                                  * instead of the text in completed since the
1921                                  * completed text will use the typed string
1922                                  * which might be cased all wrong.
1923                                  * Fixes #120876
1924                                  * */
1925                                 text = empathy_contact_get_alias (completed_list->data);
1926                         } else {
1927                                 text = completed;
1928
1929                                 /* Print all hits to the scrollback view, so the
1930                                  * user knows what possibilities he has.
1931                                  * Fixes #599779
1932                                  * */
1933                                  message = g_string_new ("");
1934                                  for (l = completed_list; l != NULL; l = l->next) {
1935                                         g_string_append (message, empathy_contact_get_alias (l->data));
1936                                         g_string_append (message, " - ");
1937                                  }
1938                                  empathy_chat_view_append_event (chat->view, message->str);
1939                                  g_string_free (message, TRUE);
1940                         }
1941
1942                         gtk_text_buffer_insert_at_cursor (buffer, text, strlen (text));
1943
1944                         if (len == 1 && is_start_of_buffer) {
1945                             gchar *complete_char;
1946
1947                             complete_char = g_settings_get_string (
1948                                     priv->gsettings_chat,
1949                                     EMPATHY_PREFS_CHAT_NICK_COMPLETION_CHAR);
1950
1951                             if (complete_char != NULL) {
1952                                 gtk_text_buffer_insert_at_cursor (buffer,
1953                                                                   complete_char,
1954                                                                   strlen (complete_char));
1955                                 gtk_text_buffer_insert_at_cursor (buffer, " ", 1);
1956                                 g_free (complete_char);
1957                             }
1958                         }
1959
1960                         g_free (completed);
1961                 }
1962
1963                 g_completion_clear_items (priv->completion);
1964
1965                 g_list_foreach (list, (GFunc) g_object_unref, NULL);
1966                 g_list_free (list);
1967
1968                 return TRUE;
1969         }
1970
1971         return FALSE;
1972 }
1973
1974 static gboolean
1975 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
1976                                   GdkEvent   *event,
1977                                   EmpathyChat *chat)
1978 {
1979         gtk_widget_grab_focus (chat->input_text_view);
1980
1981         return TRUE;
1982 }
1983
1984 static void
1985 chat_input_realize_cb (GtkWidget   *widget,
1986                        EmpathyChat *chat)
1987 {
1988         DEBUG ("Setting focus to the input text view");
1989         if (gtk_widget_is_sensitive (widget)) {
1990                 gtk_widget_grab_focus (widget);
1991         }
1992 }
1993
1994 static void
1995 chat_input_has_focus_notify_cb (GtkWidget   *widget,
1996                                 GParamSpec  *pspec,
1997                                 EmpathyChat *chat)
1998 {
1999         empathy_chat_view_focus_toggled (chat->view, gtk_widget_has_focus (widget));
2000 }
2001
2002 static void
2003 chat_insert_smiley_activate_cb (EmpathySmileyManager *manager,
2004                                 EmpathySmiley        *smiley,
2005                                 gpointer              user_data)
2006 {
2007         EmpathyChat   *chat = EMPATHY_CHAT (user_data);
2008         GtkTextBuffer *buffer;
2009         GtkTextIter    iter;
2010
2011         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2012
2013         gtk_text_buffer_get_end_iter (buffer, &iter);
2014         gtk_text_buffer_insert (buffer, &iter, smiley->str, -1);
2015
2016         gtk_text_buffer_get_end_iter (buffer, &iter);
2017         gtk_text_buffer_insert (buffer, &iter, " ", -1);
2018 }
2019
2020 typedef struct {
2021         EmpathyChat  *chat;
2022         gchar       *word;
2023
2024         GtkTextIter  start;
2025         GtkTextIter  end;
2026 } EmpathyChatSpell;
2027
2028 static EmpathyChatSpell *
2029 chat_spell_new (EmpathyChat  *chat,
2030                 const gchar *word,
2031                 GtkTextIter  start,
2032                 GtkTextIter  end)
2033 {
2034         EmpathyChatSpell *chat_spell;
2035
2036         chat_spell = g_slice_new0 (EmpathyChatSpell);
2037
2038         chat_spell->chat = g_object_ref (chat);
2039         chat_spell->word = g_strdup (word);
2040         chat_spell->start = start;
2041         chat_spell->end = end;
2042
2043         return chat_spell;
2044 }
2045
2046 static void
2047 chat_spell_free (EmpathyChatSpell *chat_spell)
2048 {
2049         g_object_unref (chat_spell->chat);
2050         g_free (chat_spell->word);
2051         g_slice_free (EmpathyChatSpell, chat_spell);
2052 }
2053
2054 static void
2055 chat_spelling_menu_activate_cb (GtkMenuItem     *menu_item,
2056                                                 EmpathyChatSpell *chat_spell)
2057 {
2058     empathy_chat_correct_word (chat_spell->chat,
2059                                &(chat_spell->start),
2060                                &(chat_spell->end),
2061                                gtk_menu_item_get_label (menu_item));
2062 }
2063
2064
2065 static GtkWidget *
2066 chat_spelling_build_suggestions_menu (const gchar *code,
2067                                       EmpathyChatSpell *chat_spell)
2068 {
2069         GList     *suggestions, *l;
2070         GtkWidget *menu, *menu_item;
2071
2072         suggestions = empathy_spell_get_suggestions (code, chat_spell->word);
2073         if (suggestions == NULL)
2074                 return NULL;
2075
2076         menu = gtk_menu_new ();
2077         for (l = suggestions; l; l = l->next) {
2078                 menu_item = gtk_menu_item_new_with_label (l->data);
2079                 g_signal_connect (G_OBJECT (menu_item), "activate",
2080                                   G_CALLBACK (chat_spelling_menu_activate_cb),
2081                                   chat_spell);
2082                 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
2083         }
2084         empathy_spell_free_suggestions (suggestions);
2085
2086         gtk_widget_show_all (menu);
2087
2088         return menu;
2089 }
2090
2091 static GtkWidget *
2092 chat_spelling_build_menu (EmpathyChatSpell *chat_spell)
2093 {
2094         GtkWidget *menu, *submenu, *item;
2095         GList     *codes, *l;
2096
2097         codes = empathy_spell_get_enabled_language_codes ();
2098         g_assert (codes != NULL);
2099
2100         if (g_list_length (codes) > 1) {
2101                 menu = gtk_menu_new ();
2102
2103                 for (l = codes; l; l = l->next) {
2104                         const gchar *code, *name;
2105
2106                         code = l->data;
2107                         name = empathy_spell_get_language_name (code);
2108                         if (!name)
2109                                 continue;
2110
2111                         item = gtk_image_menu_item_new_with_label (name);
2112
2113                         submenu = chat_spelling_build_suggestions_menu (
2114                                         code, chat_spell);
2115                         if (submenu == NULL)
2116                                 gtk_widget_set_sensitive (item, FALSE);
2117                         else
2118                                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item),
2119                                                            submenu);
2120                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2121                 }
2122         } else {
2123                 menu = chat_spelling_build_suggestions_menu (codes->data,
2124                                                              chat_spell);
2125                 if (menu == NULL) {
2126                         menu = gtk_menu_new ();
2127                         item = gtk_menu_item_new_with_label (_("(No Suggestions)"));
2128                         gtk_widget_set_sensitive (item, FALSE);
2129                         gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
2130                 }
2131         }
2132         g_list_free (codes);
2133
2134         gtk_widget_show_all (menu);
2135
2136         return menu;
2137 }
2138
2139 typedef struct {
2140         EmpathyChat  *chat;
2141         gchar        *word;
2142         gchar        *code;
2143 } EmpathyChatWord;
2144
2145 static EmpathyChatWord *
2146 chat_word_new (EmpathyChat  *chat,
2147                 const gchar  *word,
2148                 const gchar  *code)
2149 {
2150         EmpathyChatWord *chat_word;
2151
2152         chat_word = g_slice_new0 (EmpathyChatWord);
2153
2154         chat_word->chat = g_object_ref (chat);
2155         chat_word->word = g_strdup (word);
2156         chat_word->code = g_strdup (code);
2157
2158         return chat_word;
2159 }
2160
2161 static void
2162 chat_word_free (EmpathyChatWord *chat_word)
2163 {
2164         g_object_unref (chat_word->chat);
2165         g_free (chat_word->word);
2166         g_free (chat_word->code);
2167         g_slice_free (EmpathyChatWord, chat_word);
2168 }
2169
2170 static void
2171 chat_add_to_dictionary_activate_cb (GtkMenuItem     *menu_item,
2172                                     EmpathyChatWord *chat_word)
2173 {
2174         EmpathyChatPriv *priv = GET_PRIV (chat_word->chat);
2175
2176         empathy_spell_add_to_dictionary (chat_word->code,
2177                                          chat_word->word);
2178         priv->update_misspelled_words_id =
2179                 g_idle_add (update_misspelled_words, chat_word->chat);
2180 }
2181
2182 static GtkWidget *
2183 chat_spelling_build_add_to_dictionary_item (EmpathyChatSpell *chat_spell)
2184 {
2185         GtkWidget       *menu, *item, *lang_item, *image;
2186         GList           *codes, *l;
2187         gchar           *label;
2188         const gchar     *code, *name;
2189         EmpathyChatWord *chat_word;
2190
2191         codes = empathy_spell_get_enabled_language_codes ();
2192         g_assert (codes != NULL);
2193         if (g_list_length (codes) > 1) {
2194                 /* translators: %s is the selected word */
2195                 label = g_strdup_printf (_("Add '%s' to Dictionary"),
2196                                         chat_spell->word);
2197                 item = gtk_image_menu_item_new_with_mnemonic (label);
2198                 g_free (label);
2199                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2200                                                       GTK_ICON_SIZE_MENU);
2201                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
2202                                                image);
2203
2204                 menu = gtk_menu_new ();
2205
2206                 for (l = codes; l; l = l->next) {
2207                         code = l->data;
2208                         name = empathy_spell_get_language_name (code);
2209                         if (name == NULL)
2210                                 continue;
2211
2212                         lang_item = gtk_image_menu_item_new_with_label (name);
2213
2214                         chat_word= chat_word_new (chat_spell->chat,
2215                                                   chat_spell->word, code);
2216                         g_object_set_data_full (G_OBJECT (lang_item),
2217                                 "chat-word", chat_word,
2218                                 (GDestroyNotify) chat_word_free);
2219
2220                         g_signal_connect (G_OBJECT (lang_item), "activate",
2221                                 G_CALLBACK (chat_add_to_dictionary_activate_cb),
2222                                 chat_word);
2223                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), lang_item);
2224                 }
2225                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
2226         } else {
2227                 code = codes->data;
2228                 name = empathy_spell_get_language_name (code);
2229                 g_assert (name != NULL);
2230                 /* translators: first %s is the selected word,
2231                  * second %s is the language name of the target dictionary */
2232                 label = g_strdup_printf (_("Add '%s' to %s Dictionary"),
2233                                         chat_spell->word, name);
2234                 item = gtk_image_menu_item_new_with_mnemonic (label);
2235                 g_free (label);
2236                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2237                                                       GTK_ICON_SIZE_MENU);
2238                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2239
2240                 chat_word = chat_word_new (chat_spell->chat, chat_spell->word,
2241                                            code);
2242                 g_object_set_data_full (G_OBJECT (item), "chat-word", chat_word,
2243                                         (GDestroyNotify) chat_word_free);
2244
2245                 g_signal_connect (G_OBJECT (item), "activate",
2246                                   G_CALLBACK (chat_add_to_dictionary_activate_cb),
2247                                   chat_word);
2248         }
2249         g_list_free (codes);
2250
2251         gtk_widget_show_all (item);
2252
2253         return item;
2254 }
2255
2256 static void
2257 chat_text_send_cb (GtkMenuItem *menuitem,
2258                    EmpathyChat *chat)
2259 {
2260         chat_input_text_view_send (chat);
2261 }
2262
2263 static gboolean
2264 chat_input_button_press_event_cb (GtkTextView    *view,
2265                                   GdkEventButton *event,
2266                                   EmpathyChat    *chat)
2267 {
2268         EmpathyChatPriv *priv = GET_PRIV (chat);
2269
2270         priv->most_recent_event_type = event->type;
2271
2272         return FALSE;
2273 }
2274
2275 static void
2276 chat_input_populate_popup_cb (GtkTextView *view,
2277                               GtkMenu     *menu,
2278                               EmpathyChat *chat)
2279 {
2280         EmpathyChatPriv      *priv = GET_PRIV (chat);
2281         GtkTextBuffer        *buffer;
2282         GtkTextTagTable      *table;
2283         GtkTextTag           *tag;
2284         gint                  x, y;
2285         GtkTextIter           iter, start, end;
2286         GtkWidget            *item;
2287         gchar                *str = NULL;
2288         EmpathyChatSpell     *chat_spell;
2289         GtkWidget            *spell_menu;
2290         GtkWidget            *spell_item;
2291         EmpathySmileyManager *smiley_manager;
2292         GtkWidget            *smiley_menu;
2293         GtkWidget            *image;
2294
2295         buffer = gtk_text_view_get_buffer (view);
2296
2297         /* Add the emoticon menu. */
2298         item = gtk_separator_menu_item_new ();
2299         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2300         gtk_widget_show (item);
2301
2302         item = gtk_image_menu_item_new_with_mnemonic (_("Insert Smiley"));
2303         image = gtk_image_new_from_icon_name ("face-smile",
2304                                               GTK_ICON_SIZE_MENU);
2305         gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2306         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2307         gtk_widget_show (item);
2308
2309         smiley_manager = empathy_smiley_manager_dup_singleton ();
2310         smiley_menu = empathy_smiley_menu_new (smiley_manager,
2311                                                chat_insert_smiley_activate_cb,
2312                                                chat);
2313         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
2314         g_object_unref (smiley_manager);
2315
2316         /* Add the Send menu item. */
2317         gtk_text_buffer_get_bounds (buffer, &start, &end);
2318         str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2319         if (!EMP_STR_EMPTY (str)) {
2320                 item = gtk_menu_item_new_with_mnemonic (_("_Send"));
2321                 g_signal_connect (G_OBJECT (item), "activate",
2322                                   G_CALLBACK (chat_text_send_cb), chat);
2323                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2324                 gtk_widget_show (item);
2325         }
2326         str = NULL;
2327
2328         /* Add the spell check menu item. */
2329         table = gtk_text_buffer_get_tag_table (buffer);
2330         tag = gtk_text_tag_table_lookup (table, "misspelled");
2331
2332         switch (priv->most_recent_event_type) {
2333             case GDK_BUTTON_PRESS:
2334                 /* get the location from the pointer */
2335                 gdk_window_get_device_position (gtk_widget_get_window (GTK_WIDGET (view)),
2336                         gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (
2337                                 gtk_widget_get_display (GTK_WIDGET (view)))), &x, &y, NULL);
2338
2339                 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
2340                                                        GTK_TEXT_WINDOW_WIDGET,
2341                                                        x, y,
2342                                                        &x, &y);
2343                 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
2344                                                     &iter, x, y);
2345                 break;
2346
2347             default:
2348                 g_warn_if_reached ();
2349                 /* assume the KEY_PRESS case */
2350
2351             case GDK_KEY_PRESS:
2352                 /* get the location from the cursor */
2353                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2354                                 gtk_text_buffer_get_insert (buffer));
2355                 break;
2356
2357         }
2358
2359         start = end = iter;
2360         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
2361             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
2362
2363                 str = gtk_text_buffer_get_text (buffer,
2364                                                 &start, &end, FALSE);
2365         }
2366         if (!EMP_STR_EMPTY (str)) {
2367                 chat_spell = chat_spell_new (chat, str, start, end);
2368                 g_object_set_data_full (G_OBJECT (menu),
2369                                         "chat-spell", chat_spell,
2370                                         (GDestroyNotify) chat_spell_free);
2371
2372                 item = gtk_separator_menu_item_new ();
2373                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2374                 gtk_widget_show (item);
2375
2376                 /* Spelling suggestions */
2377                 item = gtk_image_menu_item_new_with_mnemonic (_("_Spelling Suggestions"));
2378                 image = gtk_image_new_from_icon_name (GTK_STOCK_SPELL_CHECK,
2379                                                       GTK_ICON_SIZE_MENU);
2380                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2381
2382                 spell_menu = chat_spelling_build_menu (chat_spell);
2383                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), spell_menu);
2384
2385
2386                 spell_item = gtk_separator_menu_item_new ();
2387                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2388                 gtk_widget_show (spell_item);
2389
2390                 /* Add to dictionary */
2391                 spell_item = chat_spelling_build_add_to_dictionary_item (chat_spell);
2392
2393                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2394                 gtk_widget_show (spell_item);
2395
2396                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2397                 gtk_widget_show (item);
2398         }
2399 }
2400
2401
2402 static gboolean
2403 chat_log_filter (TplEvent *event,
2404                  gpointer user_data)
2405 {
2406         EmpathyChat *chat = user_data;
2407         EmpathyMessage *message;
2408         EmpathyChatPriv *priv = GET_PRIV (chat);
2409         const GList *pending;
2410
2411         g_return_val_if_fail (TPL_IS_EVENT (event), FALSE);
2412         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
2413
2414         pending = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2415         message = empathy_message_from_tpl_log_event (event);
2416
2417         for (; pending; pending = g_list_next (pending)) {
2418                 if (empathy_message_equal (message, pending->data)) {
2419                         g_object_unref (message);
2420                         return FALSE;
2421                 }
2422         }
2423
2424         g_object_unref (message);
2425         return TRUE;
2426 }
2427
2428
2429 static void
2430 show_pending_messages (EmpathyChat *chat) {
2431         EmpathyChatPriv *priv = GET_PRIV (chat);
2432         const GList *messages, *l;
2433
2434         g_return_if_fail (EMPATHY_IS_CHAT (chat));
2435
2436         if (chat->view == NULL || priv->tp_chat == NULL)
2437                 return;
2438
2439         if (!priv->can_show_pending)
2440                 return;
2441
2442         messages = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2443
2444         for (l = messages; l != NULL ; l = g_list_next (l)) {
2445                 EmpathyMessage *message = EMPATHY_MESSAGE (l->data);
2446                 chat_message_received (chat, message, TRUE);
2447         }
2448 }
2449
2450
2451 static void
2452 got_filtered_messages_cb (GObject *manager,
2453                 GAsyncResult *result,
2454                 gpointer user_data)
2455 {
2456         GList *l;
2457         GList *messages;
2458         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2459         EmpathyChatPriv *priv = GET_PRIV (chat);
2460         GError *error = NULL;
2461
2462         if (!tpl_log_manager_get_filtered_events_finish (TPL_LOG_MANAGER (manager),
2463                 result, &messages, &error)) {
2464                 DEBUG ("%s. Aborting.", error->message);
2465                 empathy_chat_view_append_event (chat->view,
2466                         _("Failed to retrieve recent logs"));
2467                 g_error_free (error);
2468                 goto out;
2469         }
2470
2471         for (l = messages; l; l = g_list_next (l)) {
2472                 EmpathyMessage *message;
2473
2474                 g_assert (TPL_IS_EVENT (l->data));
2475
2476                 message = empathy_message_from_tpl_log_event (l->data);
2477                 g_object_unref (l->data);
2478
2479                 if (empathy_message_is_edit (message)) {
2480                         /* this is an edited message, create a synthetic event
2481                          * using the supersedes token and
2482                          * original-message-sent timestamp, that we can then
2483                          * replace */
2484                         EmpathyMessage *syn_msg = g_object_new (
2485                                 EMPATHY_TYPE_MESSAGE,
2486                                 "body", "",
2487                                 "token", empathy_message_get_supersedes (message),
2488                                 "type", empathy_message_get_tptype (message),
2489                                 "timestamp", empathy_message_get_original_timestamp (message),
2490                                 "incoming", empathy_message_is_incoming (message),
2491                                 "is-backlog", TRUE,
2492                                 "receiver", empathy_message_get_receiver (message),
2493                                 "sender", empathy_message_get_sender (message),
2494                                 NULL);
2495
2496                         empathy_chat_view_append_message (chat->view, syn_msg,
2497                                                           empathy_message_should_highlight (syn_msg));
2498                         empathy_chat_view_edit_message (chat->view, message);
2499
2500                         g_object_unref (syn_msg);
2501                 } else {
2502                         /* append the latest message */
2503                         empathy_chat_view_append_message (chat->view, message,
2504                                                           empathy_message_should_highlight (message));
2505                 }
2506
2507                 g_object_unref (message);
2508         }
2509         g_list_free (messages);
2510
2511 out:
2512         /* in case of TPL error, skip backlog and show pending messages */
2513         priv->can_show_pending = TRUE;
2514         show_pending_messages (chat);
2515
2516         /* FIXME: See Bug#610994, we are forcing the ACK of the queue. See comments
2517          * about it in EmpathyChatPriv definition */
2518         priv->retrieving_backlogs = FALSE;
2519         empathy_chat_messages_read (chat);
2520
2521         /* Turn back on scrolling */
2522         empathy_chat_view_scroll (chat->view, TRUE);
2523 }
2524
2525 static void
2526 chat_add_logs (EmpathyChat *chat)
2527 {
2528         EmpathyChatPriv *priv = GET_PRIV (chat);
2529         TplEntity       *target;
2530
2531         if (!priv->id) {
2532                 return;
2533         }
2534
2535         /* Turn off scrolling temporarily */
2536         empathy_chat_view_scroll (chat->view, FALSE);
2537
2538         /* Add messages from last conversation */
2539         if (priv->handle_type == TP_HANDLE_TYPE_ROOM)
2540           target = tpl_entity_new_from_room_id (priv->id);
2541         else
2542           target = tpl_entity_new (priv->id, TPL_ENTITY_CONTACT, NULL, NULL);
2543
2544         priv->retrieving_backlogs = TRUE;
2545         tpl_log_manager_get_filtered_events_async (priv->log_manager,
2546                                                    priv->account,
2547                                                    target,
2548                                                    TPL_EVENT_MASK_TEXT,
2549                                                    5,
2550                                                    chat_log_filter,
2551                                                    chat,
2552                                                    got_filtered_messages_cb,
2553                                                    (gpointer) chat);
2554
2555         g_object_unref (target);
2556 }
2557
2558 static gint
2559 chat_contacts_completion_func (const gchar *s1,
2560                                const gchar *s2,
2561                                gsize        n)
2562 {
2563         gchar *tmp, *nick1, *nick2;
2564         gint   ret;
2565
2566         if (s1 == s2) {
2567                 return 0;
2568         }
2569         if (!s1 || !s2) {
2570                 return s1 ? -1 : +1;
2571         }
2572
2573         tmp = g_utf8_normalize (s1, -1, G_NORMALIZE_DEFAULT);
2574         nick1 = g_utf8_casefold (tmp, -1);
2575         g_free (tmp);
2576
2577         tmp = g_utf8_normalize (s2, -1, G_NORMALIZE_DEFAULT);
2578         nick2 = g_utf8_casefold (tmp, -1);
2579         g_free (tmp);
2580
2581         ret = strncmp (nick1, nick2, n);
2582
2583         g_free (nick1);
2584         g_free (nick2);
2585
2586         return ret;
2587 }
2588
2589 static gchar *
2590 build_part_message (guint           reason,
2591                     const gchar    *name,
2592                     EmpathyContact *actor,
2593                     const gchar    *message)
2594 {
2595         GString *s = g_string_new ("");
2596         const gchar *actor_name = NULL;
2597
2598         if (actor != NULL) {
2599                 actor_name = empathy_contact_get_alias (actor);
2600         }
2601
2602         /* Having an actor only really makes sense for a few actions... */
2603         switch (reason) {
2604         case TP_CHANNEL_GROUP_CHANGE_REASON_OFFLINE:
2605                 g_string_append_printf (s, _("%s has disconnected"), name);
2606                 break;
2607         case TP_CHANNEL_GROUP_CHANGE_REASON_KICKED:
2608                 if (actor_name != NULL) {
2609                         /* translators: reverse the order of these arguments
2610                          * if the kicked should come before the kicker in your locale.
2611                          */
2612                         g_string_append_printf (s, _("%1$s was kicked by %2$s"),
2613                                 name, actor_name);
2614                 } else {
2615                         g_string_append_printf (s, _("%s was kicked"), name);
2616                 }
2617                 break;
2618         case TP_CHANNEL_GROUP_CHANGE_REASON_BANNED:
2619                 if (actor_name != NULL) {
2620                         /* translators: reverse the order of these arguments
2621                          * if the banned should come before the banner in your locale.
2622                          */
2623                         g_string_append_printf (s, _("%1$s was banned by %2$s"),
2624                                 name, actor_name);
2625                 } else {
2626                         g_string_append_printf (s, _("%s was banned"), name);
2627                 }
2628                 break;
2629         default:
2630                 g_string_append_printf (s, _("%s has left the room"), name);
2631         }
2632
2633         if (!EMP_STR_EMPTY (message)) {
2634                 /* Note to translators: this string is appended to
2635                  * notifications like "foo has left the room", with the message
2636                  * given by the user living the room. If this poses a problem,
2637                  * please let us know. :-)
2638                  */
2639                 g_string_append_printf (s, _(" (%s)"), message);
2640         }
2641
2642         return g_string_free (s, FALSE);
2643 }
2644
2645 static void
2646 chat_members_changed_cb (EmpathyTpChat  *tp_chat,
2647                          EmpathyContact *contact,
2648                          EmpathyContact *actor,
2649                          guint           reason,
2650                          gchar          *message,
2651                          gboolean        is_member,
2652                          EmpathyChat    *chat)
2653 {
2654         EmpathyChatPriv *priv = GET_PRIV (chat);
2655         const gchar *name = empathy_contact_get_alias (contact);
2656         gchar *str;
2657
2658         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED != reason);
2659
2660         if (priv->block_events_timeout_id != 0)
2661                 return;
2662
2663         if (is_member) {
2664                 str = g_strdup_printf (_("%s has joined the room"),
2665                                        name);
2666         } else {
2667                 str = build_part_message (reason, name, actor, message);
2668         }
2669
2670         empathy_chat_view_append_event (chat->view, str);
2671         g_free (str);
2672 }
2673
2674 static void
2675 chat_member_renamed_cb (EmpathyTpChat  *tp_chat,
2676                          EmpathyContact *old_contact,
2677                          EmpathyContact *new_contact,
2678                          guint           reason,
2679                          gchar          *message,
2680                          EmpathyChat    *chat)
2681 {
2682         EmpathyChatPriv *priv = GET_PRIV (chat);
2683
2684         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED == reason);
2685
2686         if (priv->block_events_timeout_id == 0) {
2687                 gchar *str;
2688
2689                 str = g_strdup_printf (_("%s is now known as %s"),
2690                                        empathy_contact_get_alias (old_contact),
2691                                        empathy_contact_get_alias (new_contact));
2692                 empathy_chat_view_append_event (chat->view, str);
2693                 g_free (str);
2694         }
2695
2696 }
2697
2698 static gboolean
2699 chat_contacts_visible_timeout_cb (gpointer chat)
2700 {
2701         EmpathyChatPriv *priv = GET_PRIV (chat);
2702
2703         /* Relax the size request */
2704         gtk_widget_set_size_request (priv->vbox_left, -1, -1);
2705
2706         /* Set the position of the slider. This must be done here because
2707          * GtkPaned need to know its size allocation and it will be settled only
2708          * after the gtk_window_resize () tough effect. */
2709         if (priv->contacts_width > 0) {
2710                 gtk_paned_set_position (GTK_PANED (priv->hpaned),
2711                                         priv->contacts_width);
2712         }
2713
2714         priv->contacts_visible_id = 0;
2715
2716         return FALSE;
2717 }
2718
2719 static void
2720 chat_update_contacts_visibility (EmpathyChat *chat,
2721                          gboolean show)
2722 {
2723         EmpathyChatPriv *priv = GET_PRIV (chat);
2724
2725         if (!priv->scrolled_window_contacts) {
2726                 return;
2727         }
2728
2729         if (priv->remote_contact != NULL) {
2730                 show = FALSE;
2731         }
2732
2733         if (show && priv->contact_list_view == NULL) {
2734                 EmpathyIndividualStore *store;
2735                 gint                     min_width;
2736                 GtkAllocation            allocation;
2737
2738                 /* We are adding the contact list to the chat, we don't want the
2739                  * chat view to become too small. If the chat view is already
2740                  * smaller than 250 make sure that size won't change. If the
2741                  * chat view is bigger the contact list will take some space on
2742                  * it but we make sure the chat view don't become smaller than
2743                  * 250. Relax the size request once the resize is done */
2744                 gtk_widget_get_allocation (priv->vbox_left, &allocation);
2745                 min_width = MIN (allocation.width, 250);
2746                 gtk_widget_set_size_request (priv->vbox_left, min_width, -1);
2747
2748                 /* There is no way to know when the window resize will happen
2749                  * since it is WM's decision. Let's hope it won't be longer. */
2750                 if (priv->contacts_visible_id != 0)
2751                         g_source_remove (priv->contacts_visible_id);
2752                 priv->contacts_visible_id = g_timeout_add (500,
2753                         chat_contacts_visible_timeout_cb, chat);
2754
2755                 store = EMPATHY_INDIVIDUAL_STORE (
2756                                 empathy_individual_store_channel_new ((TpChannel *) priv->tp_chat));
2757
2758                 empathy_individual_store_set_show_groups (store, FALSE);
2759
2760                 priv->contact_list_view = GTK_WIDGET (empathy_individual_view_new (store,
2761                         EMPATHY_INDIVIDUAL_VIEW_FEATURE_INDIVIDUAL_TOOLTIP,
2762                         EMPATHY_INDIVIDUAL_FEATURE_ADD_CONTACT |
2763                         EMPATHY_INDIVIDUAL_FEATURE_CHAT |
2764                         EMPATHY_INDIVIDUAL_FEATURE_CALL |
2765                         EMPATHY_INDIVIDUAL_FEATURE_LOG |
2766                         EMPATHY_INDIVIDUAL_FEATURE_INFO));
2767
2768                 empathy_individual_view_set_show_offline (
2769                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2770                 empathy_individual_view_set_show_uninteresting (
2771                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2772
2773                 gtk_container_add (GTK_CONTAINER (priv->scrolled_window_contacts),
2774                                    priv->contact_list_view);
2775
2776                 gtk_widget_show (priv->contact_list_view);
2777                 gtk_widget_show (priv->scrolled_window_contacts);
2778                 g_object_unref (store);
2779         } else if (!show) {
2780                 priv->contacts_width = gtk_paned_get_position (GTK_PANED (priv->hpaned));
2781                 gtk_widget_hide (priv->scrolled_window_contacts);
2782                 if (priv->contact_list_view != NULL) {
2783                         gtk_widget_destroy (priv->contact_list_view);
2784                         priv->contact_list_view = NULL;
2785                 }
2786         }
2787 }
2788
2789 void
2790 empathy_chat_set_show_contacts (EmpathyChat *chat,
2791                                 gboolean     show)
2792 {
2793         EmpathyChatPriv *priv = GET_PRIV (chat);
2794
2795         priv->show_contacts = show;
2796
2797         chat_update_contacts_visibility (chat, show);
2798
2799         g_object_notify (G_OBJECT (chat), "show-contacts");
2800 }
2801
2802 static void
2803 chat_remote_contact_changed_cb (EmpathyChat *chat)
2804 {
2805         EmpathyChatPriv *priv = GET_PRIV (chat);
2806
2807         if (priv->remote_contact != NULL) {
2808                 g_object_unref (priv->remote_contact);
2809                 priv->remote_contact = NULL;
2810         }
2811
2812         g_free (priv->id);
2813
2814         priv->id = g_strdup (empathy_tp_chat_get_id (priv->tp_chat));
2815         priv->remote_contact = empathy_tp_chat_get_remote_contact (priv->tp_chat);
2816         if (priv->remote_contact != NULL) {
2817                 g_object_ref (priv->remote_contact);
2818                 priv->handle_type = TP_HANDLE_TYPE_CONTACT;
2819         }
2820         else if (priv->tp_chat != NULL) {
2821                 tp_channel_get_handle ((TpChannel *) priv->tp_chat, &priv->handle_type);
2822         }
2823
2824         chat_update_contacts_visibility (chat, priv->show_contacts);
2825
2826         g_object_notify (G_OBJECT (chat), "remote-contact");
2827         g_object_notify (G_OBJECT (chat), "id");
2828 }
2829
2830 static void
2831 chat_invalidated_cb (EmpathyTpChat *tp_chat,
2832                  guint domain,
2833                  gint code,
2834                  gchar *message,
2835                  EmpathyChat   *chat)
2836 {
2837         EmpathyChatPriv *priv;
2838
2839         priv = GET_PRIV (chat);
2840
2841         if (!priv->tp_chat) {
2842                 return;
2843         }
2844
2845         chat_composing_remove_timeout (chat);
2846         g_object_unref (priv->tp_chat);
2847         priv->tp_chat = NULL;
2848         g_object_notify (G_OBJECT (chat), "tp-chat");
2849
2850         empathy_chat_view_append_event (chat->view, _("Disconnected"));
2851         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
2852
2853         chat_update_contacts_visibility (chat, FALSE);
2854
2855         priv->unread_messages_when_offline = priv->unread_messages;
2856 }
2857
2858 static gboolean
2859 update_misspelled_words (gpointer data)
2860 {
2861         EmpathyChat *chat = EMPATHY_CHAT (data);
2862         EmpathyChatPriv *priv = GET_PRIV (chat);
2863         GtkTextBuffer *buffer;
2864         GtkTextIter iter;
2865         gint length;
2866
2867         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2868
2869         gtk_text_buffer_get_end_iter (buffer, &iter);
2870         length = gtk_text_iter_get_offset (&iter);
2871         chat_input_text_buffer_insert_text_cb (buffer, &iter,
2872                                                NULL, length, chat);
2873
2874         priv->update_misspelled_words_id = 0;
2875
2876         return FALSE;
2877 }
2878
2879 static void
2880 conf_spell_checking_cb (GSettings *gsettings_chat,
2881                         const gchar *key,
2882                         gpointer user_data)
2883 {
2884         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2885         EmpathyChatPriv *priv = GET_PRIV (chat);
2886         gboolean spell_checker;
2887         GtkTextBuffer *buffer;
2888
2889         if (strcmp (key, EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED) != 0)
2890                 return;
2891
2892         spell_checker = g_settings_get_boolean (gsettings_chat,
2893                         EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED);
2894
2895         if (!empathy_spell_supported ()) {
2896                 spell_checker = FALSE;
2897         }
2898
2899         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2900
2901         if (spell_checker == priv->spell_checking_enabled) {
2902                 if (spell_checker) {
2903                         /* Possibly changed dictionaries,
2904                          * update misspelled words. Need to do so in idle
2905                          * so the spell checker is updated. */
2906                         priv->update_misspelled_words_id =
2907                                 g_idle_add (update_misspelled_words, chat);
2908                 }
2909
2910                 return;
2911         }
2912
2913         if (spell_checker) {
2914                 GtkTextIter iter;
2915
2916                 priv->notify_cursor_position_id = tp_g_signal_connect_object  (
2917                                 buffer, "notify::cursor-position",
2918                                 G_CALLBACK (chat_input_text_buffer_notify_cursor_position_cb),
2919                                 chat, 0);
2920                 priv->insert_text_id = tp_g_signal_connect_object  (
2921                                 buffer, "insert-text",
2922                                 G_CALLBACK (chat_input_text_buffer_insert_text_cb),
2923                                 chat, G_CONNECT_AFTER);
2924                 priv->delete_range_id = tp_g_signal_connect_object  (
2925                                 buffer, "delete-range",
2926                                 G_CALLBACK (chat_input_text_buffer_delete_range_cb),
2927                                 chat, G_CONNECT_AFTER);
2928
2929                 gtk_text_buffer_create_tag (buffer, "misspelled",
2930                                             "underline", PANGO_UNDERLINE_ERROR,
2931                                             NULL);
2932
2933                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2934                                                   gtk_text_buffer_get_insert (buffer));
2935                 gtk_text_buffer_create_mark (buffer, "previous-cursor-position",
2936                                              &iter, TRUE);
2937
2938                 /* Mark misspelled words in the existing buffer.
2939                  * Need to do so in idle so the spell checker is updated. */
2940                 priv->update_misspelled_words_id =
2941                         g_idle_add (update_misspelled_words, chat);
2942         } else {
2943                 GtkTextTagTable *table;
2944                 GtkTextTag *tag;
2945
2946                 g_signal_handler_disconnect (buffer, priv->notify_cursor_position_id);
2947                 priv->notify_cursor_position_id = 0;
2948                 g_signal_handler_disconnect (buffer, priv->insert_text_id);
2949                 priv->insert_text_id = 0;
2950                 g_signal_handler_disconnect (buffer, priv->delete_range_id);
2951                 priv->delete_range_id = 0;
2952
2953                 table = gtk_text_buffer_get_tag_table (buffer);
2954                 tag = gtk_text_tag_table_lookup (table, "misspelled");
2955                 gtk_text_tag_table_remove (table, tag);
2956
2957                 gtk_text_buffer_delete_mark_by_name (buffer,
2958                                                      "previous-cursor-position");
2959         }
2960
2961         priv->spell_checking_enabled = spell_checker;
2962 }
2963
2964 static gboolean
2965 save_paned_pos_timeout (gpointer data)
2966 {
2967         EmpathyChat *self = data;
2968         gint hpaned_pos;
2969
2970         hpaned_pos = gtk_paned_get_position (GTK_PANED (self->priv->hpaned));
2971
2972         g_settings_set_int (self->priv->gsettings_ui,
2973                             EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS,
2974                             hpaned_pos);
2975
2976         return FALSE;
2977 }
2978
2979 static gboolean
2980 chat_hpaned_pos_changed_cb (GtkWidget* hpaned,
2981                 GParamSpec *spec,
2982                 gpointer user_data)
2983 {
2984         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2985
2986         if (chat->priv->save_paned_pos_id != 0)
2987                 g_source_remove (chat->priv->save_paned_pos_id);
2988
2989         chat->priv->save_paned_pos_id = g_timeout_add_seconds (1,
2990                 save_paned_pos_timeout, chat);
2991
2992         return TRUE;
2993 }
2994
2995 static void
2996 chat_create_ui (EmpathyChat *chat)
2997 {
2998         EmpathyChatPriv *priv = GET_PRIV (chat);
2999         GtkBuilder      *gui;
3000         GList           *list = NULL;
3001         gchar           *filename;
3002         GtkTextBuffer   *buffer;
3003         EmpathyThemeManager *theme_mgr;
3004
3005         filename = empathy_file_lookup ("empathy-chat.ui",
3006                                         "libempathy-gtk");
3007         gui = empathy_builder_get_file (filename,
3008                                         "chat_widget", &priv->widget,
3009                                         "hpaned", &priv->hpaned,
3010                                         "vbox_left", &priv->vbox_left,
3011                                         "scrolled_window_chat", &priv->scrolled_window_chat,
3012                                         "scrolled_window_input", &priv->scrolled_window_input,
3013                                         "hbox_topic", &priv->hbox_topic,
3014                                         "expander_topic", &priv->expander_topic,
3015                                         "label_topic", &priv->label_topic,
3016                                         "scrolled_window_contacts", &priv->scrolled_window_contacts,
3017                                         "info_bar_vbox", &priv->info_bar_vbox,
3018                                         NULL);
3019
3020         empathy_builder_connect (gui, chat,
3021                 "expander_topic", "notify::expanded", chat_topic_expander_activate_cb,
3022                 "label_topic", "size-allocate", chat_topic_label_size_allocate_cb,
3023                 NULL);
3024
3025         g_free (filename);
3026
3027         /* Add message view. */
3028         theme_mgr = empathy_theme_manager_dup_singleton ();
3029         chat->view = empathy_theme_manager_create_view (theme_mgr);
3030         g_object_unref (theme_mgr);
3031         /* If this is a GtkTextView, it's set as a drag destination for text/plain
3032            and other types, even though it's non-editable and doesn't accept any
3033            drags.  This steals drag motion for anything inside the scrollbars,
3034            making drag destinations on chat windows far less useful.
3035          */
3036         gtk_drag_dest_unset (GTK_WIDGET (chat->view));
3037         g_signal_connect (chat->view, "focus_in_event",
3038                           G_CALLBACK (chat_text_view_focus_in_event_cb),
3039                           chat);
3040         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_chat),
3041                            GTK_WIDGET (chat->view));
3042         gtk_widget_show (GTK_WIDGET (chat->view));
3043
3044         /* Add input GtkTextView */
3045         chat->input_text_view = empathy_input_text_view_new ();
3046         g_signal_connect (chat->input_text_view, "notify::has-focus",
3047                           G_CALLBACK (chat_input_has_focus_notify_cb),
3048                           chat);
3049         g_signal_connect (chat->input_text_view, "key-press-event",
3050                           G_CALLBACK (chat_input_key_press_event_cb),
3051                           chat);
3052         g_signal_connect (chat->input_text_view, "realize",
3053                           G_CALLBACK (chat_input_realize_cb),
3054                           chat);
3055         g_signal_connect (chat->input_text_view, "button-press-event",
3056                           G_CALLBACK (chat_input_button_press_event_cb),
3057                           chat);
3058         g_signal_connect (chat->input_text_view, "populate-popup",
3059                           G_CALLBACK (chat_input_populate_popup_cb),
3060                           chat);
3061         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
3062         tp_g_signal_connect_object  (buffer, "changed",
3063                           G_CALLBACK (chat_input_text_buffer_changed_cb),
3064                           chat, 0);
3065         tp_g_signal_connect_object (priv->gsettings_chat,
3066                         "changed::" EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
3067                         G_CALLBACK (conf_spell_checking_cb), chat, 0);
3068         conf_spell_checking_cb (priv->gsettings_chat,
3069                                 EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED, chat);
3070         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_input),
3071                            chat->input_text_view);
3072         gtk_widget_show (chat->input_text_view);
3073
3074         /* Add the (invisible) search bar */
3075         priv->search_bar = empathy_search_bar_new (chat->view);
3076         gtk_box_pack_start (GTK_BOX(priv->vbox_left),
3077                             priv->search_bar,
3078                             FALSE, FALSE, 0);
3079         gtk_box_reorder_child (GTK_BOX(priv->vbox_left), priv->search_bar, 1);
3080
3081         /* Initialy hide the topic, will be shown if not empty */
3082         gtk_widget_hide (priv->hbox_topic);
3083
3084         g_signal_connect (priv->hpaned, "notify::position",
3085                           G_CALLBACK (chat_hpaned_pos_changed_cb),
3086                           chat);
3087
3088         /* Set widget focus order */
3089         list = g_list_append (NULL, priv->search_bar);
3090         list = g_list_append (list, priv->scrolled_window_input);
3091         gtk_container_set_focus_chain (GTK_CONTAINER (priv->vbox_left), list);
3092         g_list_free (list);
3093
3094         list = g_list_append (NULL, priv->vbox_left);
3095         list = g_list_append (list, priv->scrolled_window_contacts);
3096         gtk_container_set_focus_chain (GTK_CONTAINER (priv->hpaned), list);
3097         g_list_free (list);
3098
3099         list = g_list_append (NULL, priv->hpaned);
3100         list = g_list_append (list, priv->hbox_topic);
3101         gtk_container_set_focus_chain (GTK_CONTAINER (priv->widget), list);
3102         g_list_free (list);
3103
3104         /* Add the main widget in the chat widget */
3105         gtk_box_pack_start (GTK_BOX (chat), priv->widget, TRUE, TRUE, 0);
3106         g_object_unref (gui);
3107 }
3108
3109 static void
3110 chat_finalize (GObject *object)
3111 {
3112         EmpathyChat     *chat;
3113         EmpathyChatPriv *priv;
3114
3115         chat = EMPATHY_CHAT (object);
3116         priv = GET_PRIV (chat);
3117
3118         DEBUG ("Finalized: %p", object);
3119
3120         if (priv->update_misspelled_words_id != 0)
3121                 g_source_remove (priv->update_misspelled_words_id);
3122
3123         if (priv->save_paned_pos_id != 0)
3124                 g_source_remove (priv->save_paned_pos_id);
3125
3126         if (priv->contacts_visible_id != 0)
3127                 g_source_remove (priv->contacts_visible_id);
3128
3129         g_object_unref (priv->gsettings_chat);
3130         g_object_unref (priv->gsettings_ui);
3131
3132         g_list_foreach (priv->input_history, (GFunc) chat_input_history_entry_free, NULL);
3133         g_list_free (priv->input_history);
3134
3135         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
3136         g_list_free (priv->compositors);
3137
3138         chat_composing_remove_timeout (chat);
3139
3140         g_object_unref (priv->account_manager);
3141         g_object_unref (priv->log_manager);
3142
3143         if (priv->tp_chat) {
3144                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3145                         chat_invalidated_cb, chat);
3146                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3147                         chat_message_received_cb, chat);
3148                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3149                         chat_message_acknowledged_cb, chat);
3150                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3151                         chat_send_error_cb, chat);
3152                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3153                         chat_state_changed_cb, chat);
3154                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3155                         chat_members_changed_cb, chat);
3156                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3157                         chat_remote_contact_changed_cb, chat);
3158                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3159                         chat_title_changed_cb, chat);
3160                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3161                         chat_subject_changed_cb, chat);
3162                 empathy_tp_chat_leave (priv->tp_chat, "");
3163                 g_object_unref (priv->tp_chat);
3164         }
3165         if (priv->account) {
3166                 g_object_unref (priv->account);
3167         }
3168         if (priv->remote_contact) {
3169                 g_object_unref (priv->remote_contact);
3170         }
3171
3172         if (priv->block_events_timeout_id) {
3173                 g_source_remove (priv->block_events_timeout_id);
3174         }
3175
3176         g_free (priv->id);
3177         g_free (priv->name);
3178         g_free (priv->subject);
3179         g_completion_free (priv->completion);
3180
3181         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
3182 }
3183
3184 static void
3185 chat_constructed (GObject *object)
3186 {
3187         EmpathyChat *chat = EMPATHY_CHAT (object);
3188         EmpathyChatPriv *priv = GET_PRIV (chat);
3189
3190         if (priv->handle_type != TP_HANDLE_TYPE_ROOM) {
3191                 /* First display logs from the logger and then display pending messages */
3192                 chat_add_logs (chat);
3193         }
3194          else {
3195                 /* Just display pending messages for rooms */
3196                 priv->can_show_pending = TRUE;
3197                 show_pending_messages (chat);
3198         }
3199 }
3200
3201 static void
3202 empathy_chat_class_init (EmpathyChatClass *klass)
3203 {
3204         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
3205
3206         object_class->finalize = chat_finalize;
3207         object_class->get_property = chat_get_property;
3208         object_class->set_property = chat_set_property;
3209         object_class->constructed = chat_constructed;
3210
3211         g_object_class_install_property (object_class,
3212                                          PROP_TP_CHAT,
3213                                          g_param_spec_object ("tp-chat",
3214                                                               "Empathy tp chat",
3215                                                               "The tp chat object",
3216                                                               EMPATHY_TYPE_TP_CHAT,
3217                                                               G_PARAM_CONSTRUCT |
3218                                                               G_PARAM_READWRITE |
3219                                                               G_PARAM_STATIC_STRINGS));
3220         g_object_class_install_property (object_class,
3221                                          PROP_ACCOUNT,
3222                                          g_param_spec_object ("account",
3223                                                               "Account of the chat",
3224                                                               "The account of the chat",
3225                                                               TP_TYPE_ACCOUNT,
3226                                                               G_PARAM_READABLE |
3227                                                               G_PARAM_STATIC_STRINGS));
3228         g_object_class_install_property (object_class,
3229                                          PROP_ID,
3230                                          g_param_spec_string ("id",
3231                                                               "Chat's id",
3232                                                               "The id of the chat",
3233                                                               NULL,
3234                                                               G_PARAM_READABLE |
3235                                                               G_PARAM_STATIC_STRINGS));
3236         g_object_class_install_property (object_class,
3237                                          PROP_NAME,
3238                                          g_param_spec_string ("name",
3239                                                               "Chat's name",
3240                                                               "The name of the chat",
3241                                                               NULL,
3242                                                               G_PARAM_READABLE |
3243                                                               G_PARAM_STATIC_STRINGS));
3244         g_object_class_install_property (object_class,
3245                                          PROP_SUBJECT,
3246                                          g_param_spec_string ("subject",
3247                                                               "Chat's subject",
3248                                                               "The subject or topic of the chat",
3249                                                               NULL,
3250                                                               G_PARAM_READABLE |
3251                                                               G_PARAM_STATIC_STRINGS));
3252         g_object_class_install_property (object_class,
3253                                          PROP_REMOTE_CONTACT,
3254                                          g_param_spec_object ("remote-contact",
3255                                                               "The remote contact",
3256                                                               "The remote contact is any",
3257                                                               EMPATHY_TYPE_CONTACT,
3258                                                               G_PARAM_READABLE |
3259                                                               G_PARAM_STATIC_STRINGS));
3260         g_object_class_install_property (object_class,
3261                                          PROP_SHOW_CONTACTS,
3262                                          g_param_spec_boolean ("show-contacts",
3263                                                                "Contacts' visibility",
3264                                                                "The visibility of the contacts' list",
3265                                                                TRUE,
3266                                                                G_PARAM_READWRITE |
3267                                                                G_PARAM_STATIC_STRINGS));
3268
3269         g_object_class_install_property (object_class,
3270                                          PROP_SMS_CHANNEL,
3271                                          g_param_spec_boolean ("sms-channel",
3272                                                                "SMS Channel",
3273                                                                "TRUE if this channel is for sending SMSes",
3274                                                                FALSE,
3275                                                                G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3276
3277         g_object_class_install_property (object_class,
3278                                          PROP_N_MESSAGES_SENDING,
3279                                          g_param_spec_uint ("n-messages-sending",
3280                                                             "Num Messages Sending",
3281                                                             "The number of messages being sent",
3282                                                             0, G_MAXUINT, 0,
3283                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3284
3285         g_object_class_install_property (object_class,
3286                                          PROP_NB_UNREAD_MESSAGES,
3287                                          g_param_spec_uint ("nb-unread-messages",
3288                                                             "Num Unread Messages",
3289                                                             "The number of unread messages",
3290                                                             0, G_MAXUINT, 0,
3291                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3292
3293         signals[COMPOSING] =
3294                 g_signal_new ("composing",
3295                               G_OBJECT_CLASS_TYPE (object_class),
3296                               G_SIGNAL_RUN_LAST,
3297                               0,
3298                               NULL, NULL,
3299                               g_cclosure_marshal_generic,
3300                               G_TYPE_NONE,
3301                               1, G_TYPE_BOOLEAN);
3302
3303         /**
3304          * EmpathyChat::new-message:
3305          * @self: the #EmpathyChat
3306          * @message: the new message
3307          * @pending: whether the message was in the pending queue when @self
3308          *  was created
3309          * @should_highlight: %TRUE if the message mentions the local user
3310          */
3311         signals[NEW_MESSAGE] =
3312                 g_signal_new ("new-message",
3313                               G_OBJECT_CLASS_TYPE (object_class),
3314                               G_SIGNAL_RUN_LAST,
3315                               0,
3316                               NULL, NULL,
3317                               g_cclosure_marshal_generic,
3318                               G_TYPE_NONE,
3319                               3, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
3320
3321         signals[PART_COMMAND_ENTERED] =
3322                         g_signal_new ("part-command-entered",
3323                                   G_OBJECT_CLASS_TYPE (object_class),
3324                                   G_SIGNAL_RUN_LAST,
3325                                   0,
3326                                   NULL, NULL,
3327                                   g_cclosure_marshal_generic,
3328                                   G_TYPE_NONE,
3329                                   1, G_TYPE_STRV);
3330
3331         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
3332 }
3333
3334 static gboolean
3335 chat_block_events_timeout_cb (gpointer data)
3336 {
3337         EmpathyChatPriv *priv = GET_PRIV (data);
3338
3339         priv->block_events_timeout_id = 0;
3340
3341         return FALSE;
3342 }
3343
3344 static void
3345 account_manager_prepared_cb (GObject *source_object,
3346                              GAsyncResult *result,
3347                              gpointer user_data)
3348 {
3349         GList *accounts, *l;
3350         TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
3351         EmpathyChat *chat = user_data;
3352         GError *error = NULL;
3353
3354         if (!tp_proxy_prepare_finish (account_manager, result, &error)) {
3355                 DEBUG ("Failed to prepare the account manager: %s", error->message);
3356                 g_error_free (error);
3357                 return;
3358         }
3359
3360         accounts = tp_account_manager_get_valid_accounts (account_manager);
3361
3362         for (l = accounts; l != NULL; l = l->next) {
3363                 TpAccount *account = l->data;
3364                 tp_g_signal_connect_object (account, "status-changed",
3365                                              G_CALLBACK (chat_new_connection_cb),
3366                                              chat, 0);
3367         }
3368
3369         g_list_free (accounts);
3370 }
3371
3372 static void
3373 empathy_chat_init (EmpathyChat *chat)
3374 {
3375         EmpathyChatPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (chat,
3376                 EMPATHY_TYPE_CHAT, EmpathyChatPriv);
3377
3378         chat->priv = priv;
3379         priv->log_manager = tpl_log_manager_dup_singleton ();
3380         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
3381         priv->gsettings_ui = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
3382
3383         priv->contacts_width = g_settings_get_int (priv->gsettings_ui,
3384                 EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS);
3385         priv->input_history = NULL;
3386         priv->input_history_current = NULL;
3387         priv->account_manager = tp_account_manager_dup ();
3388
3389         tp_proxy_prepare_async (priv->account_manager, NULL,
3390                                           account_manager_prepared_cb, chat);
3391
3392         priv->show_contacts = g_settings_get_boolean (priv->gsettings_chat,
3393                         EMPATHY_PREFS_CHAT_SHOW_CONTACTS_IN_ROOMS);
3394
3395         /* Block events for some time to avoid having "has come online" or
3396          * "joined" messages. */
3397         priv->block_events_timeout_id =
3398                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
3399
3400         /* Add nick name completion */
3401         priv->completion = g_completion_new ((GCompletionFunc) empathy_contact_get_alias);
3402         g_completion_set_compare (priv->completion, chat_contacts_completion_func);
3403
3404         chat_create_ui (chat);
3405 }
3406
3407 EmpathyChat *
3408 empathy_chat_new (EmpathyTpChat *tp_chat)
3409 {
3410         return g_object_new (EMPATHY_TYPE_CHAT, "tp-chat", tp_chat, NULL);
3411 }
3412
3413 EmpathyTpChat *
3414 empathy_chat_get_tp_chat (EmpathyChat *chat)
3415 {
3416         EmpathyChatPriv *priv = GET_PRIV (chat);
3417
3418         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3419
3420         return priv->tp_chat;
3421 }
3422
3423 typedef struct
3424 {
3425         EmpathyChat *self;
3426         GtkWidget *info_bar;
3427         gulong response_id;
3428         GtkWidget *button;
3429         GtkWidget *label;
3430         GtkWidget *entry;
3431         GtkWidget *spinner;
3432         gchar *password;
3433 } PasswordData;
3434
3435 static void
3436 passwd_remember_button_cb (GtkButton *button,
3437                           PasswordData *data)
3438 {
3439         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3440 }
3441
3442 static void
3443 passwd_not_now_button_cb (GtkButton *button,
3444                           PasswordData *data)
3445 {
3446         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_NO);
3447 }
3448
3449 static void
3450 remember_password_infobar_response_cb (GtkWidget *info_bar,
3451                                        gint response_id,
3452                                        PasswordData *data)
3453 {
3454         EmpathyChatPriv *priv = GET_PRIV (data->self);
3455
3456         if (response_id == GTK_RESPONSE_OK) {
3457                 DEBUG ("Saving room password");
3458                 empathy_keyring_set_room_password_async (priv->account,
3459                                                          empathy_tp_chat_get_id (priv->tp_chat),
3460                                                          data->password,
3461                                                          NULL, NULL);
3462         }
3463
3464         gtk_widget_destroy (info_bar);
3465         g_free (data->password);
3466         g_slice_free (PasswordData, data);
3467 }
3468
3469 static void
3470 chat_prompt_to_save_password (EmpathyChat *self,
3471                               PasswordData *data)
3472 {
3473         GtkWidget *content_area;
3474         GtkWidget *hbox;
3475         GtkWidget *image;
3476         GtkWidget *label;
3477         GtkWidget *alig;
3478         GtkWidget *button;
3479
3480         /* save the password in case it needs to be saved */
3481         data->password = g_strdup (gtk_entry_get_text (GTK_ENTRY (data->entry)));
3482
3483         /* Remove all previous widgets */
3484         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (data->info_bar));
3485         gtk_container_forall (GTK_CONTAINER (content_area),
3486                               (GtkCallback) gtk_widget_destroy, NULL);
3487         data->button = NULL;
3488         data->label = NULL;
3489         data->entry = NULL;
3490         data->spinner = NULL;
3491
3492         gtk_info_bar_set_message_type (GTK_INFO_BAR (data->info_bar),
3493                                        GTK_MESSAGE_QUESTION);
3494
3495         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3496         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3497
3498         /* Add image */
3499         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3500                                           GTK_ICON_SIZE_DIALOG);
3501         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3502
3503         /* Add message */
3504         label = gtk_label_new (_("Would you like to store this password?"));
3505         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
3506
3507         /* Add 'Remember' button */
3508         alig = gtk_alignment_new (0, 0.5, 1, 0);
3509
3510         button = gtk_button_new_with_label (_("Remember"));
3511         gtk_container_add (GTK_CONTAINER (alig), button);
3512         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3513
3514         g_signal_connect (button, "clicked", G_CALLBACK (passwd_remember_button_cb),
3515                           data);
3516
3517         /* Add 'Not now' button */
3518         alig = gtk_alignment_new (0, 0.5, 1, 0);
3519
3520         button = gtk_button_new_with_label (_("Not now"));
3521         gtk_container_add (GTK_CONTAINER (alig), button);
3522         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3523
3524         g_signal_connect (button, "clicked", G_CALLBACK (passwd_not_now_button_cb),
3525                           data);
3526
3527         /* go! */
3528         g_signal_handler_disconnect (data->info_bar, data->response_id);
3529         g_signal_connect (data->info_bar, "response",
3530                           G_CALLBACK (remember_password_infobar_response_cb), data);
3531
3532         gtk_widget_show_all (data->info_bar);
3533 }
3534
3535 static void
3536 provide_password_cb (GObject *tp_chat,
3537                      GAsyncResult *res,
3538                      gpointer user_data)
3539 {
3540         PasswordData *data = user_data;
3541         EmpathyChat *self = data->self;
3542         EmpathyChatPriv *priv = GET_PRIV (self);
3543         GError *error = NULL;
3544
3545         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3546                                                       &error)) {
3547                 DEBUG ("error: %s", error->message);
3548                 /* FIXME: what should we do if that's another error? Close the channel?
3549                  * Display the raw D-Bus error to the user isn't very useful */
3550                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3551                         /* entry */
3552                         gtk_entry_set_text (GTK_ENTRY (data->entry), "");
3553                         gtk_widget_set_sensitive (data->entry, TRUE);
3554                         gtk_widget_grab_focus (data->entry);
3555
3556                         /* info bar */
3557                         gtk_info_bar_set_message_type (
3558                             GTK_INFO_BAR (data->info_bar),
3559                             GTK_MESSAGE_ERROR);
3560
3561                         /* button */
3562                         gtk_widget_set_sensitive (data->button, TRUE);
3563                         gtk_button_set_label (GTK_BUTTON (data->button),
3564                             _("Retry"));
3565
3566                         /* label */
3567                         gtk_label_set_text (GTK_LABEL (data->label),
3568                             _("Wrong password; please try again:"));
3569
3570                         /* spinner */
3571                         gtk_spinner_stop (GTK_SPINNER (data->spinner));
3572                         gtk_widget_hide (data->spinner);
3573                 }
3574                 g_error_free (error);
3575                 return;
3576         }
3577
3578         if (empathy_keyring_is_available ()) {
3579                 /* ask whether they want to save the password */
3580                 chat_prompt_to_save_password (self, data);
3581         } else {
3582                 /* Get rid of the password info bar finally */
3583                 gtk_widget_destroy (data->info_bar);
3584                 g_slice_free (PasswordData, data);
3585         }
3586
3587         /* Room joined */
3588         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3589         gtk_widget_set_sensitive (self->input_text_view, TRUE);
3590         gtk_widget_grab_focus (self->input_text_view);
3591 }
3592
3593 static void
3594 password_infobar_response_cb (GtkWidget *info_bar,
3595                               gint response_id,
3596                               PasswordData *data)
3597 {
3598         EmpathyChatPriv *priv = GET_PRIV (data->self);
3599         const gchar *password;
3600
3601         if (response_id != GTK_RESPONSE_OK) {
3602                 gtk_widget_destroy (info_bar);
3603                 g_slice_free (PasswordData, data);
3604                 return;
3605         }
3606
3607         password = gtk_entry_get_text (GTK_ENTRY (data->entry));
3608
3609         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3610                                                 provide_password_cb, data);
3611
3612         gtk_widget_set_sensitive (data->button, FALSE);
3613         gtk_widget_set_sensitive (data->entry, FALSE);
3614
3615         gtk_spinner_start (GTK_SPINNER (data->spinner));
3616         gtk_widget_show (data->spinner);
3617 }
3618
3619 static void
3620 password_entry_activate_cb (GtkWidget *entry,
3621                           PasswordData *data)
3622 {
3623         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3624 }
3625
3626 static void
3627 passwd_join_button_cb (GtkButton *button,
3628                           PasswordData *data)
3629 {
3630         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3631 }
3632
3633 static void
3634 clear_icon_released_cb (GtkEntry *entry,
3635                         GtkEntryIconPosition icon_pos,
3636                         GdkEvent *event,
3637                         PasswordData *data)
3638 {
3639         gtk_entry_set_text (entry, "");
3640 }
3641
3642 static void
3643 password_entry_changed_cb (GtkEditable *entry,
3644                            PasswordData *data)
3645 {
3646         const gchar *str;
3647
3648         str = gtk_entry_get_text (GTK_ENTRY (entry));
3649
3650         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3651             GTK_ENTRY_ICON_SECONDARY, !EMP_STR_EMPTY (str));
3652 }
3653
3654 static void
3655 infobar_chat_invalidated_cb (TpProxy       *proxy,
3656                            guint          domain,
3657                            gint           code,
3658                            gchar         *message,
3659                            gpointer       password_infobar)
3660 {
3661         /* Destroy the password infobar whenever a channel is invalidated
3662          * so we don't have multiple infobars when the MUC is rejoined */
3663         gtk_widget_destroy (GTK_WIDGET (password_infobar));
3664 }
3665
3666 static void
3667 display_password_info_bar (EmpathyChat *self)
3668 {
3669         EmpathyChatPriv *priv = GET_PRIV (self);
3670         GtkWidget *info_bar;
3671         GtkWidget *content_area;
3672         GtkWidget *hbox;
3673         GtkWidget *image;
3674         GtkWidget *label;
3675         GtkWidget *entry;
3676         GtkWidget *alig;
3677         GtkWidget *button;
3678         GtkWidget *spinner;
3679         PasswordData *data;
3680
3681         data = g_slice_new0 (PasswordData);
3682
3683         info_bar = gtk_info_bar_new ();
3684         gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
3685             GTK_MESSAGE_QUESTION);
3686
3687         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
3688
3689         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3690         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3691
3692         /* Add image */
3693         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3694                                           GTK_ICON_SIZE_DIALOG);
3695         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3696
3697         /* Add message */
3698         label = gtk_label_new (_("This room is protected by a password:"));
3699         gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
3700
3701         /* Add password entry */
3702         entry = gtk_entry_new ();
3703         gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
3704         gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
3705
3706         gtk_entry_set_icon_from_stock (GTK_ENTRY (entry),
3707                                        GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
3708         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3709                                       GTK_ENTRY_ICON_SECONDARY, FALSE);
3710
3711         g_signal_connect (entry, "icon-release",
3712                           G_CALLBACK (clear_icon_released_cb), data);
3713         g_signal_connect (entry, "changed",
3714                           G_CALLBACK (password_entry_changed_cb), data);
3715
3716         g_signal_connect (entry, "activate",
3717                           G_CALLBACK (password_entry_activate_cb), data);
3718
3719         /* Focus the password entry once it's realized */
3720         g_signal_connect (entry, "realize", G_CALLBACK (gtk_widget_grab_focus), NULL);
3721
3722         /* Add 'Join' button */
3723         alig = gtk_alignment_new (0, 0.5, 1, 0);
3724
3725         button = gtk_button_new_with_label (_("Join"));
3726         gtk_container_add (GTK_CONTAINER (alig), button);
3727         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3728
3729         g_signal_connect (button, "clicked", G_CALLBACK (passwd_join_button_cb),
3730                           data);
3731
3732         /* Add spinner */
3733         spinner = gtk_spinner_new ();
3734         gtk_box_pack_end (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);
3735
3736         /* Save some data for messing around with later */
3737         data->self = self;
3738         data->info_bar = info_bar;
3739         data->button = button;
3740         data->label = label;
3741         data->entry = entry;
3742         data->spinner = spinner;
3743
3744         gtk_box_pack_start (GTK_BOX (priv->info_bar_vbox), info_bar,
3745                             TRUE, TRUE, 3);
3746         gtk_widget_show_all (hbox);
3747
3748         tp_g_signal_connect_object (priv->tp_chat,
3749                                   "invalidated", G_CALLBACK (infobar_chat_invalidated_cb),
3750                                   info_bar, 0);
3751
3752         data->response_id = g_signal_connect (info_bar, "response",
3753                                               G_CALLBACK (password_infobar_response_cb), data);
3754
3755         gtk_widget_show_all (info_bar);
3756         /* ... but hide the spinner */
3757         gtk_widget_hide (spinner);
3758
3759         /* prevent the user from typing anything */
3760         gtk_widget_set_sensitive (self->input_text_view, FALSE);
3761 }
3762
3763 static void
3764 provide_saved_password_cb (GObject *tp_chat,
3765                            GAsyncResult *res,
3766                            gpointer user_data)
3767 {
3768         EmpathyChat *self = user_data;
3769         EmpathyChatPriv *priv = GET_PRIV (self);
3770         GError *error = NULL;
3771
3772         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3773                                                       &error)) {
3774                 DEBUG ("error: %s", error->message);
3775                 /* FIXME: what should we do if that's another error? Close the channel?
3776                  * Display the raw D-Bus error to the user isn't very useful */
3777                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3778                         display_password_info_bar (self);
3779                         gtk_widget_set_sensitive (priv->hpaned, FALSE);
3780                 }
3781                 g_error_free (error);
3782                 return;
3783         }
3784
3785         /* Room joined */
3786         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3787         gtk_widget_grab_focus (self->input_text_view);
3788 }
3789
3790 static void
3791 chat_room_got_password_cb (GObject *source,
3792                            GAsyncResult *result,
3793                            gpointer user_data)
3794 {
3795         EmpathyChat *self = user_data;
3796         EmpathyChatPriv *priv = GET_PRIV (self);
3797         const gchar *password;
3798         GError *error = NULL;
3799
3800         password = empathy_keyring_get_room_password_finish (priv->account,
3801             result, &error);
3802
3803         if (error != NULL) {
3804                 DEBUG ("Couldn't get room password: %s\n", error->message);
3805                 g_clear_error (&error);
3806
3807                 display_password_info_bar (self);
3808                 gtk_widget_set_sensitive (priv->hpaned, FALSE);
3809                 return;
3810         }
3811
3812         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3813                                                 provide_saved_password_cb, self);
3814 }
3815
3816 static void
3817 chat_password_needed_changed_cb (EmpathyChat *self)
3818 {
3819         EmpathyChatPriv *priv = GET_PRIV (self);
3820
3821         if (tp_channel_password_needed (TP_CHANNEL (priv->tp_chat))) {
3822                 empathy_keyring_get_room_password_async (priv->account,
3823                                                          empathy_tp_chat_get_id (priv->tp_chat),
3824                                                          chat_room_got_password_cb, self);
3825         }
3826 }
3827
3828 static void
3829 chat_sms_channel_changed_cb (EmpathyChat *self)
3830 {
3831         EmpathyChatPriv *priv = GET_PRIV (self);
3832
3833         priv->sms_channel = tp_text_channel_is_sms_channel (
3834                 (TpTextChannel *) priv->tp_chat);
3835         g_object_notify (G_OBJECT (self), "sms-channel");
3836 }
3837
3838 static void
3839 chat_n_messages_sending_changed_cb (EmpathyChat *self)
3840 {
3841         g_object_notify (G_OBJECT (self), "n-messages-sending");
3842 }
3843
3844 void
3845 empathy_chat_set_tp_chat (EmpathyChat   *chat,
3846                           EmpathyTpChat *tp_chat)
3847 {
3848         EmpathyChatPriv *priv = GET_PRIV (chat);
3849
3850         g_return_if_fail (EMPATHY_IS_CHAT (chat));
3851         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
3852
3853         if (priv->tp_chat) {
3854                 return;
3855         }
3856
3857         if (priv->account) {
3858                 g_object_unref (priv->account);
3859         }
3860
3861         priv->tp_chat = g_object_ref (tp_chat);
3862         priv->account = g_object_ref (empathy_tp_chat_get_account (priv->tp_chat));
3863
3864         g_signal_connect (tp_chat, "invalidated",
3865                           G_CALLBACK (chat_invalidated_cb),
3866                           chat);
3867         g_signal_connect (tp_chat, "message-received-empathy",
3868                           G_CALLBACK (chat_message_received_cb),
3869                           chat);
3870         g_signal_connect (tp_chat, "message_acknowledged",
3871                           G_CALLBACK (chat_message_acknowledged_cb),
3872                           chat);
3873         g_signal_connect (tp_chat, "send-error",
3874                           G_CALLBACK (chat_send_error_cb),
3875                           chat);
3876         g_signal_connect (tp_chat, "chat-state-changed-empathy",
3877                           G_CALLBACK (chat_state_changed_cb),
3878                           chat);
3879         g_signal_connect (tp_chat, "members-changed",
3880                           G_CALLBACK (chat_members_changed_cb),
3881                           chat);
3882         g_signal_connect (tp_chat, "member-renamed",
3883                           G_CALLBACK (chat_member_renamed_cb),
3884                           chat);
3885         g_signal_connect_swapped (tp_chat, "notify::remote-contact",
3886                                   G_CALLBACK (chat_remote_contact_changed_cb),
3887                                   chat);
3888         g_signal_connect_swapped (tp_chat, "notify::password-needed",
3889                                   G_CALLBACK (chat_password_needed_changed_cb),
3890                                   chat);
3891         g_signal_connect_swapped (tp_chat, "notify::is-sms-channel",
3892                                   G_CALLBACK (chat_sms_channel_changed_cb),
3893                                   chat);
3894         g_signal_connect_swapped (tp_chat, "notify::n-messages-sending",
3895                                   G_CALLBACK (chat_n_messages_sending_changed_cb),
3896                                   chat);
3897         g_signal_connect_swapped (tp_chat, "notify::title",
3898                                   G_CALLBACK (chat_title_changed_cb),
3899                                   chat);
3900         g_signal_connect_swapped (tp_chat, "notify::subject",
3901                                   G_CALLBACK (chat_subject_changed_cb),
3902                                   chat);
3903
3904         /* Get initial value of properties */
3905         chat_sms_channel_changed_cb (chat);
3906         chat_remote_contact_changed_cb (chat);
3907         chat_title_changed_cb (chat);
3908         chat_subject_changed_cb (chat);
3909
3910         if (chat->input_text_view) {
3911                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
3912                 if (priv->block_events_timeout_id == 0) {
3913                         empathy_chat_view_append_event (chat->view, _("Connected"));
3914                 }
3915         }
3916
3917         g_object_notify (G_OBJECT (chat), "tp-chat");
3918         g_object_notify (G_OBJECT (chat), "id");
3919         g_object_notify (G_OBJECT (chat), "account");
3920
3921         /* This is a noop when tp-chat is set at object construction time and causes
3922          * the pending messages to be show when it's set on the object after it has
3923          * been created */
3924         show_pending_messages (chat);
3925
3926         /* check if a password is needed */
3927         chat_password_needed_changed_cb (chat);
3928 }
3929
3930 TpAccount *
3931 empathy_chat_get_account (EmpathyChat *chat)
3932 {
3933         EmpathyChatPriv *priv = GET_PRIV (chat);
3934
3935         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3936
3937         return priv->account;
3938 }
3939
3940 const gchar *
3941 empathy_chat_get_id (EmpathyChat *chat)
3942 {
3943         EmpathyChatPriv *priv = GET_PRIV (chat);
3944
3945         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3946
3947         return priv->id;
3948 }
3949
3950 gchar *
3951 empathy_chat_dup_name (EmpathyChat *chat)
3952 {
3953         EmpathyChatPriv *priv = GET_PRIV (chat);
3954         const gchar *ret;
3955
3956         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3957
3958         ret = priv->name;
3959
3960         if (!ret && priv->remote_contact) {
3961                 ret = empathy_contact_get_alias (priv->remote_contact);
3962         }
3963
3964         if (!ret)
3965                 ret = priv->id;
3966
3967         if (!ret)
3968                 ret = _("Conversation");
3969
3970         if (priv->sms_channel)
3971                 /* Translators: this string is a something like
3972                  * "Escher Cat (SMS)" */
3973                 return g_strdup_printf (_("%s (SMS)"), ret);
3974         else
3975                 return g_strdup (ret);
3976 }
3977
3978 const gchar *
3979 empathy_chat_get_subject (EmpathyChat *chat)
3980 {
3981         EmpathyChatPriv *priv = GET_PRIV (chat);
3982
3983         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3984
3985         return priv->subject;
3986 }
3987
3988 EmpathyContact *
3989 empathy_chat_get_remote_contact (EmpathyChat *chat)
3990 {
3991         EmpathyChatPriv *priv = GET_PRIV (chat);
3992
3993         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3994
3995         return priv->remote_contact;
3996 }
3997
3998 GtkWidget *
3999 empathy_chat_get_contact_menu (EmpathyChat *chat)
4000 {
4001         EmpathyChatPriv *priv = GET_PRIV (chat);
4002         GtkWidget       *menu = NULL;
4003         FolksIndividual *individual;
4004         TpContact *contact;
4005
4006         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4007
4008         if (priv->remote_contact == NULL)
4009                 return NULL;
4010
4011         contact = empathy_contact_get_tp_contact (priv->remote_contact);
4012         if (contact == NULL)
4013                 return NULL;
4014
4015         individual = empathy_create_individual_from_tp_contact (contact);
4016         if (individual == NULL)
4017                 return NULL;
4018
4019         menu = empathy_individual_menu_new (individual,
4020                                          EMPATHY_INDIVIDUAL_FEATURE_CALL |
4021                                          EMPATHY_INDIVIDUAL_FEATURE_LOG |
4022                                          EMPATHY_INDIVIDUAL_FEATURE_INFO |
4023                                          EMPATHY_INDIVIDUAL_FEATURE_BLOCK, NULL);
4024
4025         g_object_unref (individual);
4026
4027         return menu;
4028 }
4029
4030 void
4031 empathy_chat_clear (EmpathyChat *chat)
4032 {
4033         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4034
4035         empathy_chat_view_clear (chat->view);
4036 }
4037
4038 void
4039 empathy_chat_scroll_down (EmpathyChat *chat)
4040 {
4041         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4042
4043         empathy_chat_view_scroll_down (chat->view);
4044 }
4045
4046 void
4047 empathy_chat_cut (EmpathyChat *chat)
4048 {
4049         GtkTextBuffer *buffer;
4050
4051         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4052
4053         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4054         if (gtk_text_buffer_get_has_selection (buffer)) {
4055                 GtkClipboard *clipboard;
4056
4057                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4058
4059                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
4060         }
4061 }
4062
4063 void
4064 empathy_chat_copy (EmpathyChat *chat)
4065 {
4066         GtkTextBuffer *buffer;
4067
4068         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4069
4070         if (empathy_chat_view_get_has_selection (chat->view)) {
4071                 empathy_chat_view_copy_clipboard (chat->view);
4072                 return;
4073         }
4074
4075         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4076         if (gtk_text_buffer_get_has_selection (buffer)) {
4077                 GtkClipboard *clipboard;
4078
4079                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4080
4081                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
4082         }
4083         else {
4084                 gint start_offset;
4085                 gint end_offset;
4086                 EmpathyChatPriv *priv = GET_PRIV (chat);
4087
4088                 if (gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
4089                                                                &start_offset,
4090                                                                &end_offset)) {
4091                         gchar *start;
4092                         gchar *end;
4093                         gchar *selection;
4094                         const gchar *topic;
4095                         GtkClipboard *clipboard;
4096
4097                         topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
4098                         start = g_utf8_offset_to_pointer (topic, start_offset);
4099                         end = g_utf8_offset_to_pointer (topic, end_offset);
4100                         selection = g_strndup (start, end - start);
4101
4102                         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4103                         gtk_clipboard_set_text (clipboard, selection, -1);
4104
4105                         g_free (selection);
4106                 }
4107         }
4108 }
4109
4110 void
4111 empathy_chat_paste (EmpathyChat *chat)
4112 {
4113         GtkTextBuffer *buffer;
4114         GtkClipboard  *clipboard;
4115         EmpathyChatPriv *priv;
4116
4117         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4118
4119         priv = GET_PRIV (chat);
4120
4121         if (gtk_widget_get_visible (priv->search_bar)) {
4122                 empathy_search_bar_paste_clipboard (EMPATHY_SEARCH_BAR (priv->search_bar));
4123                 return;
4124         }
4125
4126         if (priv->tp_chat == NULL ||
4127             !gtk_widget_is_sensitive (chat->input_text_view))
4128                 return;
4129
4130         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4131         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4132
4133         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
4134 }
4135
4136 void
4137 empathy_chat_find (EmpathyChat *chat)
4138 {
4139         EmpathyChatPriv *priv;
4140
4141         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4142
4143         priv = GET_PRIV (chat);
4144
4145         empathy_search_bar_show (EMPATHY_SEARCH_BAR (priv->search_bar));
4146 }
4147
4148 void
4149 empathy_chat_correct_word (EmpathyChat  *chat,
4150                           GtkTextIter *start,
4151                           GtkTextIter *end,
4152                           const gchar *new_word)
4153 {
4154         GtkTextBuffer *buffer;
4155
4156         g_return_if_fail (chat != NULL);
4157         g_return_if_fail (new_word != NULL);
4158
4159         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4160
4161         gtk_text_buffer_delete (buffer, start, end);
4162         gtk_text_buffer_insert (buffer, start,
4163                                 new_word,
4164                                 -1);
4165 }
4166
4167 gboolean
4168 empathy_chat_is_room (EmpathyChat *chat)
4169 {
4170         EmpathyChatPriv *priv = GET_PRIV (chat);
4171
4172         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
4173
4174         return (priv->handle_type == TP_HANDLE_TYPE_ROOM);
4175 }
4176
4177 guint
4178 empathy_chat_get_nb_unread_messages (EmpathyChat *self)
4179 {
4180         EmpathyChatPriv *priv = GET_PRIV (self);
4181
4182         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4183
4184         return priv->unread_messages;
4185 }
4186
4187 /* called when the messages have been read by user */
4188 void
4189 empathy_chat_messages_read (EmpathyChat *self)
4190 {
4191         EmpathyChatPriv *priv = GET_PRIV (self);
4192
4193         g_return_if_fail (EMPATHY_IS_CHAT (self));
4194
4195         /* FIXME: See Bug#610994, See comments about it in EmpathyChatPriv
4196          * definition. If we are still retrieving the backlogs, do not ACK */
4197         if (priv->retrieving_backlogs)
4198                 return;
4199
4200         if (priv->tp_chat != NULL) {
4201                 tp_text_channel_ack_all_pending_messages_async (
4202                         TP_TEXT_CHANNEL (priv->tp_chat), NULL, NULL);
4203         }
4204
4205         if (priv->unread_messages_when_offline > 0) {
4206                 /* We can't ack those as the connection has gone away so just consider
4207                 * them as read. */
4208                 priv->unread_messages -= priv->unread_messages_when_offline;
4209                 g_object_notify (G_OBJECT (self), "nb-unread-messages");
4210                 priv->unread_messages_when_offline = 0;
4211         }
4212 }
4213
4214 /* Return TRUE if on of the contacts in this chat is composing */
4215 gboolean
4216 empathy_chat_is_composing (EmpathyChat *chat)
4217 {
4218   return chat->priv->compositors != NULL;
4219 }
4220
4221 gboolean
4222 empathy_chat_is_sms_channel (EmpathyChat *self)
4223 {
4224         EmpathyChatPriv *priv = GET_PRIV (self);
4225
4226         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4227
4228         return priv->sms_channel;
4229 }
4230
4231 guint
4232 empathy_chat_get_n_messages_sending (EmpathyChat *self)
4233 {
4234         EmpathyChatPriv *priv;
4235
4236         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4237
4238         priv = GET_PRIV (self);
4239
4240         if (priv->tp_chat == NULL) {
4241                 return 0;
4242         } else {
4243                 guint n_messages;
4244
4245                 g_object_get (priv->tp_chat,
4246                         "n-messages-sending", &n_messages,
4247                         NULL);
4248
4249                 return n_messages;
4250         }
4251 }
4252
4253 gchar *
4254 empathy_chat_dup_text (EmpathyChat *self)
4255 {
4256         GtkTextBuffer *buffer;
4257         GtkTextIter     start, end;
4258
4259         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4260
4261         gtk_text_buffer_get_bounds (buffer, &start, &end);
4262         return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4263 }
4264
4265 void
4266 empathy_chat_set_text (EmpathyChat *self,
4267                        const gchar *text)
4268 {
4269         GtkTextBuffer *buffer;
4270
4271         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4272
4273         gtk_text_buffer_set_text (buffer, text, -1);
4274 }