libempathy-gtk/empathy-chat.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2002-2007 Imendio AB
   4  * Copyright (C) 2007-2010 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Mikael Hallendal <micke@imendio.com>
  22  *          Richard Hult <richard@imendio.com>
  23  *          Martyn Russell <martyn@imendio.com>
  24  *          Geert-Jan Van den Bogaerde <geertjan@gnome.org>
  25  *          Xavier Claessens <xclaesse@gmail.com>
  26  */
  27
  28 #include <config.h>
  29
  30 #include <string.h>
  31 #include <stdlib.h>
  32
  33 #undef G_DISABLE_DEPRECATED /* for GCompletion */
  34 #include <gdk/gdkkeysyms.h>
  35 #include <glib/gi18n-lib.h>
  36 #include <gtk/gtk.h>
  37
  38 #include <telepathy-glib/account-manager.h>
  39 #include <telepathy-glib/util.h>
  40 #include <telepathy-logger/log-manager.h>
  41 #include <telepathy-logger/text-event.h>
  42 #include <libempathy/empathy-contact-list.h>
  43 #include <libempathy/empathy-gsettings.h>
  44 #include <libempathy/empathy-keyring.h>
  45 #include <libempathy/empathy-utils.h>
  46 #include <libempathy/empathy-request-util.h>
  47 #include <libempathy/empathy-chatroom-manager.h>
  48
  49 #include "empathy-chat.h"
  50 #include "empathy-spell.h"
  51 #include "empathy-contact-dialogs.h"
  52 #include "empathy-individual-store-channel.h"
  53 #include "empathy-individual-view.h"
  54 #include "empathy-input-text-view.h"
  55 #include "empathy-search-bar.h"
  56 #include "empathy-theme-manager.h"
  57 #include "empathy-theme-adium.h"
  58 #include "empathy-smiley-manager.h"
  59 #include "empathy-ui-utils.h"
  60 #include "empathy-string-parser.h"
  61 #include "extensions/extensions.h"
  62
  63 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
  64 #include <libempathy/empathy-debug.h>
  65
  66 #define IS_ENTER(v) (v == GDK_KEY_Return || v == GDK_KEY_ISO_Enter || v == GDK_KEY_KP_Enter)
  67 #define COMPOSING_STOP_TIMEOUT 5
  68
  69 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChat)
  70 struct _EmpathyChatPriv {
  71         EmpathyTpChat     *tp_chat;
  72         TpAccount         *account;
  73         gchar             *id;
  74         gchar             *name;
  75         gchar             *subject;
  76         EmpathyContact    *remote_contact;
  77         gboolean           show_contacts;
  78
  79         GSettings         *gsettings_chat;
  80         GSettings         *gsettings_ui;
  81
  82         TplLogManager     *log_manager;
  83         TpAccountManager  *account_manager;
  84         GList             *input_history;
  85         GList             *input_history_current;
  86         GList             *compositors;
  87         GCompletion       *completion;
  88         guint              composing_stop_timeout_id;
  89         guint              block_events_timeout_id;
  90         TpHandleType       handle_type;
  91         gint               contacts_width;
  92         gboolean           has_input_vscroll;
  93
  94         /* TRUE if spell checking is enabled, FALSE otherwise.
  95          * This is to keep track of the last state of spell checking
  96          * when it changes. */
  97         gboolean           spell_checking_enabled;
  98
  99         /* These store the signal handler ids for the enclosed text entry. */
 100         gulong             insert_text_id;
 101         gulong             delete_range_id;
 102         gulong             notify_cursor_position_id;
 103
 104         /* Source func ID for update_misspelled_words () */
 105         guint              update_misspelled_words_id;
 106         /* Source func ID for save_paned_pos_timeout () */
 107         guint              save_paned_pos_id;
 108         /* Source func ID for chat_contacts_visible_timeout_cb () */
 109         guint              contacts_visible_id;
 110
 111         GtkWidget         *widget;
 112         GtkWidget         *hpaned;
 113         GtkWidget         *vbox_left;
 114         GtkWidget         *scrolled_window_chat;
 115         GtkWidget         *scrolled_window_input;
 116         GtkWidget         *scrolled_window_contacts;
 117         GtkWidget         *hbox_topic;
 118         GtkWidget         *expander_topic;
 119         GtkWidget         *label_topic;
 120         GtkWidget         *contact_list_view;
 121         GtkWidget         *info_bar_vbox;
 122         GtkWidget         *search_bar;
 123
 124         guint              unread_messages;
 125         guint              unread_messages_when_offline;
 126         /* TRUE if the pending messages can be displayed. This is to avoid to show
 127          * pending messages *before* messages from logs. (#603980) */
 128         gboolean           can_show_pending;
 129
 130         /* FIXME: retrieving_backlogs flag is a workaround for Bug#610994 and should
 131          * be differently handled since it introduces another race condition, which
 132          * is really hard to occur, but still possible.
 133          *
 134          * With the current workaround (which has the race above), we need to be
 135          * sure to ACK any pending messages only when the retrieval of backlogs is
 136          * finished, that's why using retrieving_backlogs flag.
 137          * empathy_chat_messages_read () will check this variable and not ACK
 138          * anything when TRUE. It will be set TRUE at chat_constructed () and set
 139          * back to FALSE when the backlog has been retrieved and the pending
 140          * messages actually showed to the user.
 141          *
 142          * Race condition introduced with this workaround:
 143          * Scenario: a message is pending, the user is notified and selects the tab.
 144          * the tab with a pending message is focused before the messages are properly
 145          * shown (since the preparation of the window is slower AND async WRT the
 146          * tab showing), which means the user won't see any new messages (rare but
 147          * possible), if he/she will change tab focus before the messages are
 148          * properly shown, the tab will be set as 'seen' and the user won't be
 149          * notified again about the already notified pending messages when the
 150          * messages in tab will be properly shown */
 151         gboolean           retrieving_backlogs;
 152         gboolean           sms_channel;
 153
 154         /* we need to know whether populate-popup happened in response to
 155          * the keyboard or the mouse. We can't ask GTK for the most recent
 156          * event, because it will be a notify event. Instead we track it here */
 157         GdkEventType       most_recent_event_type;
 158 };
 159
 160 typedef struct {
 161         gchar *text; /* Original message that was specified
 162                       * upon entry creation. */
 163         gchar *modified_text; /* Message that was modified by user.
 164                                * When no modifications were made, it is NULL */
 165 } InputHistoryEntry;
 166
 167 enum {
 168         COMPOSING,
 169         NEW_MESSAGE,
 170         PART_COMMAND_ENTERED,
 171         LAST_SIGNAL
 172 };
 173
 174 enum {
 175         PROP_0,
 176         PROP_TP_CHAT,
 177         PROP_ACCOUNT,
 178         PROP_ID,
 179         PROP_NAME,
 180         PROP_SUBJECT,
 181         PROP_REMOTE_CONTACT,
 182         PROP_SHOW_CONTACTS,
 183         PROP_SMS_CHANNEL,
 184         PROP_N_MESSAGES_SENDING,
 185         PROP_NB_UNREAD_MESSAGES,
 186 };
 187
 188 static guint signals[LAST_SIGNAL] = { 0 };
 189
 190 G_DEFINE_TYPE (EmpathyChat, empathy_chat, GTK_TYPE_BOX);
 191
 192 static gboolean update_misspelled_words (gpointer data);
 193
 194 static void
 195 chat_get_property (GObject    *object,
 196                    guint       param_id,
 197                    GValue     *value,
 198                    GParamSpec *pspec)
 199 {
 200         EmpathyChat *chat = EMPATHY_CHAT (object);
 201         EmpathyChatPriv *priv = GET_PRIV (object);
 202
 203         switch (param_id) {
 204         case PROP_TP_CHAT:
 205                 g_value_set_object (value, priv->tp_chat);
 206                 break;
 207         case PROP_ACCOUNT:
 208                 g_value_set_object (value, priv->account);
 209                 break;
 210         case PROP_NAME:
 211                 g_value_take_string (value, empathy_chat_dup_name (chat));
 212                 break;
 213         case PROP_ID:
 214                 g_value_set_string (value, priv->id);
 215                 break;
 216         case PROP_SUBJECT:
 217                 g_value_set_string (value, priv->subject);
 218                 break;
 219         case PROP_REMOTE_CONTACT:
 220                 g_value_set_object (value, priv->remote_contact);
 221                 break;
 222         case PROP_SHOW_CONTACTS:
 223                 g_value_set_boolean (value, priv->show_contacts);
 224                 break;
 225         case PROP_SMS_CHANNEL:
 226                 g_value_set_boolean (value, priv->sms_channel);
 227                 break;
 228         case PROP_N_MESSAGES_SENDING:
 229                 g_value_set_uint (value,
 230                         empathy_chat_get_n_messages_sending (chat));
 231                 break;
 232         case PROP_NB_UNREAD_MESSAGES:
 233                 g_value_set_uint (value,
 234                         empathy_chat_get_nb_unread_messages (chat));
 235                 break;
 236         default:
 237                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 238                 break;
 239         };
 240 }
 241
 242 static void
 243 chat_set_property (GObject      *object,
 244                    guint         param_id,
 245                    const GValue *value,
 246                    GParamSpec   *pspec)
 247 {
 248         EmpathyChat *chat = EMPATHY_CHAT (object);
 249
 250         switch (param_id) {
 251         case PROP_TP_CHAT:
 252                 empathy_chat_set_tp_chat (chat, EMPATHY_TP_CHAT (g_value_get_object (value)));
 253                 break;
 254         case PROP_SHOW_CONTACTS:
 255                 empathy_chat_set_show_contacts (chat, g_value_get_boolean (value));
 256                 break;
 257         default:
 258                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 259                 break;
 260         };
 261 }
 262
 263 static void
 264 account_reconnected (EmpathyChat *chat,
 265                         TpAccount *account)
 266 {
 267         EmpathyChatPriv *priv = GET_PRIV (chat);
 268
 269         DEBUG ("Account reconnected, request a new Text channel");
 270
 271         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 272         * report the error if any but this is blocked by
 273         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 274         switch (priv->handle_type) {
 275                 case TP_HANDLE_TYPE_CONTACT:
 276                         if (priv->sms_channel)
 277                                 empathy_sms_contact_id (
 278                                         account, priv->id,
 279                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 280                                         NULL, NULL);
 281                         else
 282                                 empathy_chat_with_contact_id (
 283                                         account, priv->id,
 284                                         TP_USER_ACTION_TIME_NOT_USER_ACTION,
 285                                         NULL, NULL);
 286                         break;
 287                 case TP_HANDLE_TYPE_ROOM:
 288                         empathy_join_muc (account, priv->id,
 289                                 TP_USER_ACTION_TIME_NOT_USER_ACTION);
 290                         break;
 291                 case TP_HANDLE_TYPE_NONE:
 292                 case TP_HANDLE_TYPE_LIST:
 293                 case TP_HANDLE_TYPE_GROUP:
 294                 default:
 295                         g_assert_not_reached ();
 296                         break;
 297         }
 298
 299         g_object_unref (chat);
 300 }
 301
 302 static void
 303 chat_new_connection_cb (TpAccount   *account,
 304                         guint        old_status,
 305                         guint        new_status,
 306                         guint        reason,
 307                         gchar       *dbus_error_name,
 308                         GHashTable  *details,
 309                         EmpathyChat *chat)
 310 {
 311         EmpathyChatPriv *priv = GET_PRIV (chat);
 312
 313         if (new_status != TP_CONNECTION_STATUS_CONNECTED)
 314                 return;
 315
 316         if (priv->tp_chat != NULL || account != priv->account ||
 317             priv->handle_type == TP_HANDLE_TYPE_NONE ||
 318             EMP_STR_EMPTY (priv->id))
 319                 return;
 320
 321         g_object_ref (chat);
 322
 323         account_reconnected (chat, account);
 324 }
 325
 326 static void
 327 chat_composing_remove_timeout (EmpathyChat *chat)
 328 {
 329         EmpathyChatPriv *priv;
 330
 331         priv = GET_PRIV (chat);
 332
 333         if (priv->composing_stop_timeout_id) {
 334                 g_source_remove (priv->composing_stop_timeout_id);
 335                 priv->composing_stop_timeout_id = 0;
 336         }
 337 }
 338
 339 static void
 340 set_chate_state_cb (GObject *source,
 341                     GAsyncResult *result,
 342                     gpointer user_data)
 343 {
 344         GError *error = NULL;
 345
 346         if (!tp_text_channel_set_chat_state_finish (TP_TEXT_CHANNEL (source), result,
 347                 &error)) {
 348                 DEBUG ("Failed to set chat state: %s", error->message);
 349                 g_error_free (error);
 350         }
 351 }
 352
 353 static void
 354 set_chat_state (EmpathyChat *self,
 355                 TpChannelChatState state)
 356 {
 357         EmpathyChatPriv *priv = GET_PRIV (self);
 358
 359         if (!tp_proxy_has_interface_by_id (priv->tp_chat,
 360                 TP_IFACE_QUARK_CHANNEL_INTERFACE_CHAT_STATE))
 361                 return;
 362
 363         tp_text_channel_set_chat_state_async (TP_TEXT_CHANNEL (priv->tp_chat), state,
 364                 set_chate_state_cb, self);
 365 }
 366
 367 static gboolean
 368 chat_composing_stop_timeout_cb (EmpathyChat *chat)
 369 {
 370         EmpathyChatPriv *priv;
 371
 372         priv = GET_PRIV (chat);
 373
 374         priv->composing_stop_timeout_id = 0;
 375         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_PAUSED);
 376
 377         return FALSE;
 378 }
 379
 380 static void
 381 chat_composing_start (EmpathyChat *chat)
 382 {
 383         EmpathyChatPriv *priv;
 384
 385         priv = GET_PRIV (chat);
 386
 387         if (priv->composing_stop_timeout_id) {
 388                 /* Just restart the timeout */
 389                 chat_composing_remove_timeout (chat);
 390         } else {
 391                 set_chat_state (chat, TP_CHANNEL_CHAT_STATE_COMPOSING);
 392         }
 393
 394         priv->composing_stop_timeout_id = g_timeout_add_seconds (
 395                 COMPOSING_STOP_TIMEOUT,
 396                 (GSourceFunc) chat_composing_stop_timeout_cb,
 397                 chat);
 398 }
 399
 400 static void
 401 chat_composing_stop (EmpathyChat *chat)
 402 {
 403         chat_composing_remove_timeout (chat);
 404         set_chat_state (chat, TP_CHANNEL_CHAT_STATE_ACTIVE);
 405 }
 406
 407 static gint
 408 chat_input_history_entry_cmp (InputHistoryEntry *entry,
 409                               const gchar *text)
 410 {
 411         if (!tp_strdiff (entry->text, text)) {
 412                 if (entry->modified_text != NULL) {
 413                         /* Modified entry and single string cannot be equal. */
 414                         return 1;
 415                 }
 416                 return 0;
 417         }
 418         return 1;
 419 }
 420
 421 static InputHistoryEntry *
 422 chat_input_history_entry_new_with_text (const gchar *text)
 423 {
 424         InputHistoryEntry *entry;
 425         entry = g_slice_new0 (InputHistoryEntry);
 426         entry->text = g_strdup (text);
 427
 428         return entry;
 429 }
 430
 431 static void
 432 chat_input_history_entry_free (InputHistoryEntry *entry)
 433 {
 434         g_free (entry->text);
 435         g_free (entry->modified_text);
 436         g_slice_free (InputHistoryEntry, entry);
 437 }
 438
 439 static void
 440 chat_input_history_entry_revert (InputHistoryEntry *entry)
 441 {
 442         g_free (entry->modified_text);
 443         entry->modified_text = NULL;
 444 }
 445
 446 static void
 447 chat_input_history_entry_update_text (InputHistoryEntry *entry,
 448                                       const gchar *text)
 449 {
 450         gchar *old;
 451
 452         if (!tp_strdiff (text, entry->text)) {
 453                 g_free (entry->modified_text);
 454                 entry->modified_text = NULL;
 455                 return;
 456         }
 457
 458         old = entry->modified_text;
 459         entry->modified_text = g_strdup (text);
 460         g_free (old);
 461 }
 462
 463 static const gchar *
 464 chat_input_history_entry_get_text (InputHistoryEntry *entry)
 465 {
 466         if (entry == NULL) {
 467                 return NULL;
 468         }
 469
 470         if (entry->modified_text != NULL) {
 471                 return entry->modified_text;
 472         }
 473         return entry->text;
 474 }
 475
 476 static GList *
 477 chat_input_history_remove_item (GList *list,
 478                                 GList *item)
 479 {
 480         list = g_list_remove_link (list, item);
 481         chat_input_history_entry_free (item->data);
 482         g_list_free_1 (item);
 483         return list;
 484 }
 485
 486 static void
 487 chat_input_history_revert (EmpathyChat *chat)
 488 {
 489         EmpathyChatPriv   *priv;
 490         GList             *list;
 491         GList             *item1;
 492         GList             *item2;
 493         InputHistoryEntry *entry;
 494
 495         priv = GET_PRIV (chat);
 496         list = priv->input_history;
 497
 498         if (list == NULL) {
 499                 DEBUG ("No input history");
 500                 return;
 501         }
 502
 503         /* Delete temporary entry */
 504         if (priv->input_history_current != NULL) {
 505                 item1 = list;
 506                 list = chat_input_history_remove_item (list, item1);
 507                 if (priv->input_history_current == item1) {
 508                         /* Removed temporary entry was current entry */
 509                         priv->input_history = list;
 510                         priv->input_history_current = NULL;
 511                         return;
 512                 }
 513         }
 514         else {
 515                 /* There is no entry to revert */
 516                 return;
 517         }
 518
 519         /* Restore the current history entry to original value */
 520         item1 = priv->input_history_current;
 521         entry = item1->data;
 522         chat_input_history_entry_revert (entry);
 523
 524         /* Remove restored entry if there is other occurance before this entry */
 525         item2 = g_list_find_custom (list, chat_input_history_entry_get_text (entry),
 526                                     (GCompareFunc) chat_input_history_entry_cmp);
 527         if (item2 != item1) {
 528                 list = chat_input_history_remove_item (list, item1);
 529         }
 530         else {
 531                 /* Remove other occurance of the restored entry */
 532                 item2 = g_list_find_custom (item1->next,
 533                                             chat_input_history_entry_get_text (entry),
 534                                             (GCompareFunc) chat_input_history_entry_cmp);
 535                 if (item2 != NULL) {
 536                         list = chat_input_history_remove_item (list, item2);
 537                 }
 538         }
 539
 540         priv->input_history_current = NULL;
 541         priv->input_history = list;
 542 }
 543
 544 static void
 545 chat_input_history_add (EmpathyChat  *chat,
 546                         const gchar *str,
 547                         gboolean temporary)
 548 {
 549         EmpathyChatPriv   *priv;
 550         GList             *list;
 551         GList             *item;
 552         InputHistoryEntry *entry;
 553
 554         priv = GET_PRIV (chat);
 555
 556         list = priv->input_history;
 557
 558         /* Remove any other occurances of this entry, if not temporary */
 559         if (!temporary) {
 560                 while ((item = g_list_find_custom (list, str,
 561                     (GCompareFunc) chat_input_history_entry_cmp)) != NULL) {
 562                         list = chat_input_history_remove_item (list, item);
 563                 }
 564
 565                 /* Trim the list to the last 10 items */
 566                 while (g_list_length (list) > 10) {
 567                         item = g_list_last (list);
 568                         if (item != NULL) {
 569                                 list = chat_input_history_remove_item (list, item);
 570                         }
 571                 }
 572         }
 573
 574
 575
 576         /* Add new entry */
 577         entry = chat_input_history_entry_new_with_text (str);
 578         list = g_list_prepend (list, entry);
 579
 580         /* Set the list and the current item pointer */
 581         priv->input_history = list;
 582         if (temporary) {
 583                 priv->input_history_current = list;
 584         }
 585         else {
 586                 priv->input_history_current = NULL;
 587         }
 588 }
 589
 590 static const gchar *
 591 chat_input_history_get_next (EmpathyChat *chat)
 592 {
 593         EmpathyChatPriv *priv;
 594         GList           *item;
 595         const gchar     *msg;
 596
 597         priv = GET_PRIV (chat);
 598
 599         if (priv->input_history == NULL) {
 600                 DEBUG ("No input history, next entry is NULL");
 601                 return NULL;
 602         }
 603         g_assert (priv->input_history_current != NULL);
 604
 605         if ((item = g_list_next (priv->input_history_current)) == NULL)
 606         {
 607                 item = priv->input_history_current;
 608         }
 609
 610         msg = chat_input_history_entry_get_text (item->data);
 611
 612         DEBUG ("Returning next entry: '%s'", msg);
 613
 614         priv->input_history_current = item;
 615
 616         return msg;
 617 }
 618
 619 static const gchar *
 620 chat_input_history_get_prev (EmpathyChat *chat)
 621 {
 622         EmpathyChatPriv *priv;
 623         GList           *item;
 624         const gchar     *msg;
 625
 626         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 627
 628         priv = GET_PRIV (chat);
 629
 630         if (priv->input_history == NULL) {
 631                 DEBUG ("No input history, previous entry is NULL");
 632                 return NULL;
 633         }
 634
 635         if (priv->input_history_current == NULL)
 636         {
 637                 return NULL;
 638         }
 639         else if ((item = g_list_previous (priv->input_history_current)) == NULL)
 640         {
 641                 item = priv->input_history_current;
 642         }
 643
 644         msg = chat_input_history_entry_get_text (item->data);
 645
 646         DEBUG ("Returning previous entry: '%s'", msg);
 647
 648         priv->input_history_current = item;
 649
 650         return msg;
 651 }
 652
 653 static void
 654 chat_input_history_update (EmpathyChat *chat,
 655                            GtkTextBuffer *buffer)
 656 {
 657         EmpathyChatPriv      *priv;
 658         GtkTextIter           start, end;
 659         gchar                *text;
 660         InputHistoryEntry    *entry;
 661
 662         priv = GET_PRIV (chat);
 663
 664         gtk_text_buffer_get_bounds (buffer, &start, &end);
 665         text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 666
 667         if (priv->input_history_current == NULL) {
 668                 /* Add the current text temporarily to the history */
 669                 chat_input_history_add (chat, text, TRUE);
 670                 g_free (text);
 671                 return;
 672         }
 673
 674         /* Save the changes in the history */
 675         entry = priv->input_history_current->data;
 676         if (tp_strdiff (chat_input_history_entry_get_text (entry), text)) {
 677                 chat_input_history_entry_update_text (entry, text);
 678         }
 679
 680         g_free (text);
 681 }
 682
 683 typedef struct {
 684         EmpathyChat *chat;
 685         gchar *message;
 686 } ChatCommandMsgData;
 687
 688 static void
 689 chat_command_msg_cb (GObject *source,
 690                               GAsyncResult *result,
 691                               gpointer                  user_data)
 692 {
 693         ChatCommandMsgData *data = user_data;
 694         GError *error = NULL;
 695         TpChannel *channel;
 696
 697         channel = tp_account_channel_request_ensure_and_observe_channel_finish (
 698                                         TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error);
 699
 700         if (channel == NULL) {
 701                 DEBUG ("Failed to get channel: %s", error->message);
 702                 g_error_free (error);
 703
 704                 empathy_chat_view_append_event (data->chat->view,
 705                         _("Failed to open private chat"));
 706                 goto OUT;
 707         }
 708
 709         if (!EMP_STR_EMPTY (data->message) && TP_IS_TEXT_CHANNEL (channel)) {
 710                 TpTextChannel *text = (TpTextChannel *) channel;
 711                 TpMessage *msg;
 712
 713                 msg = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 714                         data->message);
 715
 716                 tp_text_channel_send_message_async (text, msg, 0, NULL, NULL);
 717
 718                 g_object_unref (msg);
 719         }
 720
 721         g_object_unref (channel);
 722
 723 OUT:
 724         g_free (data->message);
 725         g_slice_free (ChatCommandMsgData, data);
 726 }
 727
 728 static gboolean
 729 nick_command_supported (EmpathyChat *chat)
 730 {
 731         EmpathyChatPriv * priv = GET_PRIV (chat);
 732         TpConnection    *connection;
 733
 734         connection = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
 735         return tp_proxy_has_interface_by_id (connection,
 736                 EMP_IFACE_QUARK_CONNECTION_INTERFACE_RENAMING);
 737 }
 738
 739 static gboolean
 740 part_command_supported (EmpathyChat *chat)
 741 {
 742         EmpathyChatPriv * priv = GET_PRIV (chat);
 743
 744         return tp_proxy_has_interface_by_id (priv->tp_chat,
 745                         TP_IFACE_QUARK_CHANNEL_INTERFACE_GROUP);
 746 }
 747
 748 static void
 749 chat_command_clear (EmpathyChat *chat,
 750                     GStrv        strv)
 751 {
 752         empathy_chat_view_clear (chat->view);
 753 }
 754
 755 static void
 756 chat_command_topic (EmpathyChat *chat,
 757                     GStrv        strv)
 758 {
 759         EmpathyChatPriv *priv = GET_PRIV (chat);
 760
 761         if (!empathy_tp_chat_supports_subject (priv->tp_chat)) {
 762                 empathy_chat_view_append_event (chat->view,
 763                         _("Topic not supported on this conversation"));
 764                 return;
 765         }
 766
 767         if (!empathy_tp_chat_can_set_subject (priv->tp_chat)) {
 768                 empathy_chat_view_append_event (chat->view,
 769                         _("You are not allowed to change the topic"));
 770                 return;
 771         }
 772
 773         empathy_tp_chat_set_subject (priv->tp_chat, strv[1]);
 774 }
 775
 776 void
 777 empathy_chat_join_muc (EmpathyChat *chat,
 778                    const gchar   *room)
 779 {
 780         EmpathyChatPriv *priv = GET_PRIV (chat);
 781
 782         empathy_join_muc (priv->account, room,
 783                 empathy_get_current_action_time ());
 784 }
 785
 786 static void
 787 chat_command_join (EmpathyChat *chat,
 788                    GStrv        strv)
 789 {
 790         guint i = 0;
 791
 792         GStrv rooms = g_strsplit_set (strv[1], ", ", -1);
 793
 794         /* FIXME: Ideally we should ask to handle ourself the channel so we can
 795         * report the error if any but this is blocked by
 796         * https://bugs.freedesktop.org/show_bug.cgi?id=13422 */
 797         while (rooms[i] != NULL) {
 798                 /* ignore empty strings */
 799                 if (!EMP_STR_EMPTY (rooms[i])) {
 800                         empathy_chat_join_muc (chat, rooms[i]);
 801                 }
 802                 i++;
 803         }
 804         g_strfreev (rooms);
 805 }
 806
 807 static void
 808 chat_command_part (EmpathyChat *chat,
 809                            GStrv        strv)
 810 {
 811         g_signal_emit (chat, signals[PART_COMMAND_ENTERED], 0, strv);
 812 }
 813
 814 static void
 815 chat_command_msg_internal (EmpathyChat *chat,
 816                            const gchar *contact_id,
 817                            const gchar *message)
 818 {
 819         EmpathyChatPriv *priv = GET_PRIV (chat);
 820         ChatCommandMsgData *data;
 821         TpAccountChannelRequest *req;
 822         GHashTable *request;
 823
 824         request = tp_asv_new (
 825                 TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_TEXT,
 826                 TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_CONTACT,
 827                 TP_PROP_CHANNEL_TARGET_ID, G_TYPE_STRING, contact_id,
 828                 NULL);
 829
 830         req = tp_account_channel_request_new (priv->account, request,
 831                 empathy_get_current_action_time ());
 832
 833         /* FIXME: We should probably search in members alias. But this
 834          * is enough for IRC */
 835         data = g_slice_new (ChatCommandMsgData);
 836         data->chat = chat;
 837         data->message = g_strdup (message);
 838
 839         tp_account_channel_request_ensure_and_observe_channel_async (req,
 840                 EMPATHY_CHAT_BUS_NAME, NULL, chat_command_msg_cb, data);
 841
 842         g_object_unref (req);
 843         g_hash_table_unref (request);
 844 }
 845
 846 static void
 847 chat_command_query (EmpathyChat *chat,
 848                     GStrv        strv)
 849 {
 850         /* If <message> part is not defined,
 851          * strv[2] will be the terminal NULL */
 852         chat_command_msg_internal (chat, strv[1], strv[2]);
 853 }
 854
 855 static void
 856 chat_command_msg (EmpathyChat *chat,
 857                   GStrv        strv)
 858 {
 859         chat_command_msg_internal (chat, strv[1], strv[2]);
 860 }
 861
 862 static void
 863 callback_for_request_rename (TpProxy *proxy,
 864                   const GError *error,
 865                   gpointer user_data,
 866                   GObject *weak_object)
 867 {
 868         if (error != NULL) {
 869                 DEBUG ("Call to RequestRename method failed: %s",error->message);
 870         }
 871 }
 872
 873 static void
 874 chat_command_nick (EmpathyChat *chat,
 875                    GStrv        strv)
 876 {
 877         EmpathyChatPriv *priv = GET_PRIV (chat);
 878         TpProxy *proxy;
 879
 880         proxy = TP_PROXY (tp_account_get_connection (priv->account));
 881
 882         emp_cli_connection_interface_renaming_call_request_rename (proxy, -1,
 883                 strv[1], callback_for_request_rename, NULL, NULL, NULL);
 884 }
 885
 886 static void
 887 chat_command_me (EmpathyChat *chat,
 888                   GStrv        strv)
 889 {
 890         EmpathyChatPriv *priv = GET_PRIV (chat);
 891         TpMessage *message;
 892         TpTextChannel *channel;
 893
 894         channel = (TpTextChannel *) (priv->tp_chat);
 895
 896         if (!tp_text_channel_supports_message_type (channel,
 897                         TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION)) {
 898                 /* Action message are not supported, 'simulate' the action */
 899                 EmpathyContact *self_contact;
 900                 gchar *tmp;
 901
 902                 self_contact = empathy_tp_chat_get_self_contact (priv->tp_chat);
 903                 /* The TpChat can't be ready if it doesn't have the self contact */
 904                 g_assert (self_contact != NULL);
 905
 906                 tmp = g_strdup_printf ("%s %s", empathy_contact_get_alias (self_contact),
 907                         strv[1]);
 908                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 909                         tmp);
 910                 g_free (tmp);
 911         }
 912         else {
 913                 message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_ACTION,
 914                         strv[1]);
 915         }
 916
 917         empathy_tp_chat_send (priv->tp_chat, message);
 918         g_object_unref (message);
 919 }
 920
 921 static void
 922 chat_command_say (EmpathyChat *chat,
 923                   GStrv        strv)
 924 {
 925         EmpathyChatPriv *priv = GET_PRIV (chat);
 926         TpMessage *message;
 927
 928         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
 929                 strv[1]);
 930         empathy_tp_chat_send (priv->tp_chat, message);
 931         g_object_unref (message);
 932 }
 933
 934 static void
 935 whois_got_contact_cb (TpConnection *connection,
 936                       guint n_contacts,
 937                       TpContact * const *contacts,
 938                       const gchar * const *requested_ids,
 939                       GHashTable *failed_id_errors,
 940                       const GError *error,
 941                       gpointer user_data,
 942                       GObject *weak_object)
 943 {
 944         EmpathyChat *chat = EMPATHY_CHAT (weak_object);
 945
 946         g_return_if_fail (n_contacts <= 1);
 947
 948         if (n_contacts == 0) {
 949                 GHashTableIter iter;
 950                 gpointer key = NULL, value = NULL;
 951                 gchar *id;
 952                 GError *id_error;
 953
 954                 /* tp-glib guarantees that the contacts you requested will be
 955                  * in failed_id_errors regardless of whether the individual
 956                  * contact was invalid or the whole operation failed.
 957                  */
 958                 g_hash_table_iter_init (&iter, failed_id_errors);
 959                 g_hash_table_iter_next (&iter, &key, &value);
 960                 id = key;
 961                 id_error = value;
 962
 963                 DEBUG ("Error getting TpContact for '%s': %s %u %s",
 964                         id, g_quark_to_string (id_error->domain),
 965                         id_error->code, id_error->message);
 966
 967                 if (error == NULL) {
 968                         /* The specific ID failed. */
 969                         gchar *event = g_strdup_printf (
 970                                 _("“%s” is not a valid contact ID"), id);
 971                         empathy_chat_view_append_event (chat->view, event);
 972                         g_free (event);
 973                 }
 974                 /* Otherwise we're disconnected or something; so the window
 975                  * will already say ‘Disconnected’, so let's not show anything.
 976                  */
 977         } else {
 978                 EmpathyContact *empathy_contact;
 979                 GtkWidget *window;
 980
 981                 g_return_if_fail (contacts[0] != NULL);
 982                 empathy_contact = empathy_contact_dup_from_tp_contact (
 983                         contacts[0]);
 984
 985                 window = gtk_widget_get_toplevel (GTK_WIDGET (chat));
 986                 /* If we're alive and this command is running, we'd better be
 987                  * in a window. */
 988                 g_return_if_fail (window != NULL);
 989                 g_return_if_fail (gtk_widget_is_toplevel (window));
 990                 empathy_contact_information_dialog_show (empathy_contact,
 991                         GTK_WINDOW (window));
 992                 g_object_unref (empathy_contact);
 993         }
 994 }
 995
 996 static void
 997 chat_command_whois (EmpathyChat *chat,
 998                     GStrv strv)
 999 {
1000         EmpathyChatPriv *priv = GET_PRIV (chat);
1001         TpConnection *conn;
1002
1003         conn = tp_channel_borrow_connection ((TpChannel *) priv->tp_chat);
1004         tp_connection_get_contacts_by_id (conn,
1005                 /* Element 0 of 'strv' is "whois"; element 1 is the contact ID
1006                  * entered by the user (including spaces, if any). */
1007                 1, (const gchar * const *) strv + 1,
1008                 0, NULL,
1009                 whois_got_contact_cb, NULL, NULL, G_OBJECT (chat));
1010 }
1011
1012 static void
1013 chat_command_whale (EmpathyChat *chat,
1014                     GStrv        strv)
1015 {
1016         EmpathyChatPriv *priv = GET_PRIV (chat);
1017         TpMessage *message;
1018
1019         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1020                 "\n\n\n"
1021                 "•_______________•");
1022         empathy_tp_chat_send (priv->tp_chat, message);
1023         g_object_unref (message);
1024 }
1025
1026 static void
1027 chat_command_babywhale (EmpathyChat *chat,
1028                         GStrv        strv)
1029 {
1030         EmpathyChatPriv *priv = GET_PRIV (chat);
1031         TpMessage *message;
1032
1033         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1034                 "\n"
1035                 "•_____•");
1036         empathy_tp_chat_send (priv->tp_chat, message);
1037         g_object_unref (message);
1038 }
1039
1040 static void
1041 chat_command_inspector (EmpathyChat *chat,
1042                     GStrv        strv)
1043 {
1044         if (EMPATHY_IS_THEME_ADIUM (chat->view)) {
1045                 empathy_theme_adium_show_inspector (
1046                         EMPATHY_THEME_ADIUM (chat->view));
1047         }
1048 }
1049
1050 static void chat_command_help (EmpathyChat *chat, GStrv strv);
1051
1052 typedef void (*ChatCommandFunc) (EmpathyChat *chat, GStrv strv);
1053
1054 typedef struct {
1055         const gchar *prefix;
1056         guint min_parts;
1057         guint max_parts;
1058         ChatCommandFunc func;
1059         gboolean (*is_supported)(EmpathyChat *chat);
1060         const gchar *help;
1061 } ChatCommandItem;
1062
1063 static ChatCommandItem commands[] = {
1064         {"clear", 1, 1, chat_command_clear, NULL,
1065          N_("/clear: clear all messages from the current conversation")},
1066
1067         {"topic", 2, 2, chat_command_topic, NULL,
1068          N_("/topic <topic>: set the topic of the current conversation")},
1069
1070         {"join", 2, 2, chat_command_join, NULL,
1071          N_("/join <chat room ID>: join a new chat room")},
1072
1073         {"j", 2, 2, chat_command_join, NULL,
1074          N_("/j <chat room ID>: join a new chat room")},
1075
1076         /* FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=643295 */
1077         {"part", 1, 3, chat_command_part, part_command_supported,
1078          N_("/part [<chat room ID>] [<reason>]: leave the chat room, "
1079             "by default the current one")},
1080
1081         {"query", 2, 3, chat_command_query, NULL,
1082          N_("/query <contact ID> [<message>]: open a private chat")},
1083
1084         {"msg", 3, 3, chat_command_msg, NULL,
1085          N_("/msg <contact ID> <message>: open a private chat")},
1086
1087         {"nick", 2, 2, chat_command_nick, nick_command_supported,
1088          N_("/nick <nickname>: change your nickname on the current server")},
1089
1090         {"me", 2, 2, chat_command_me, NULL,
1091          N_("/me <message>: send an ACTION message to the current conversation")},
1092
1093         {"say", 2, 2, chat_command_say, NULL,
1094          N_("/say <message>: send <message> to the current conversation. "
1095             "This is used to send a message starting with a '/'. For example: "
1096             "\"/say /join is used to join a new chat room\"")},
1097
1098         {"whois", 2, 2, chat_command_whois, NULL,
1099          N_("/whois <contact ID>: display information about a contact")},
1100
1101         {"help", 1, 2, chat_command_help, NULL,
1102          N_("/help [<command>]: show all supported commands. "
1103             "If <command> is defined, show its usage.")},
1104
1105         {"inspector", 1, 1, chat_command_inspector, NULL, NULL},
1106
1107         {"whale", 1, 1, chat_command_whale, NULL, NULL},
1108         {"babywhale", 1, 1, chat_command_babywhale, NULL, NULL},
1109 };
1110
1111 static void
1112 chat_command_show_help (EmpathyChat     *chat,
1113                         ChatCommandItem *item)
1114 {
1115         gchar *str;
1116
1117         if (item->help == NULL) {
1118                 return;
1119         }
1120
1121         str = g_strdup_printf (_("Usage: %s"), _(item->help));
1122         empathy_chat_view_append_event (chat->view, str);
1123         g_free (str);
1124 }
1125
1126 static void
1127 chat_command_help (EmpathyChat *chat,
1128                    GStrv        strv)
1129 {
1130         guint i;
1131
1132         /* If <command> part is not defined,
1133          * strv[1] will be the terminal NULL */
1134         if (strv[1] == NULL) {
1135                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1136                         if (commands[i].is_supported != NULL) {
1137                                 if (!commands[i].is_supported (chat)) {
1138                                         continue;
1139                                 }
1140                         }
1141                         if (commands[i].help == NULL) {
1142                                 continue;
1143                         }
1144                         empathy_chat_view_append_event (chat->view,
1145                                 _(commands[i].help));
1146                 }
1147                 return;
1148         }
1149
1150         for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1151                 if (g_ascii_strcasecmp (strv[1], commands[i].prefix) == 0) {
1152                         if (commands[i].is_supported != NULL) {
1153                                 if (!commands[i].is_supported (chat)) {
1154                                         break;
1155                                 }
1156                         }
1157                         if (commands[i].help == NULL) {
1158                                 break;
1159                         }
1160                         chat_command_show_help (chat, &commands[i]);
1161                         return;
1162                 }
1163         }
1164
1165         empathy_chat_view_append_event (chat->view,
1166                 _("Unknown command"));
1167 }
1168
1169 static GStrv
1170 chat_command_parse (const gchar *text, guint max_parts)
1171 {
1172         GPtrArray *array;
1173         gchar *item;
1174
1175         DEBUG ("Parse command, parts=%d text=\"%s\":", max_parts, text);
1176
1177         array = g_ptr_array_sized_new (max_parts + 1);
1178         while (max_parts > 1) {
1179                 const gchar *end;
1180
1181                 /* Skip white spaces */
1182                 while (g_ascii_isspace (*text)) {
1183                         text++;
1184                 }
1185
1186                 /* Search the end of this part, until first space. */
1187                 for (end = text; *end != '\0' && !g_ascii_isspace (*end); end++)
1188                         /* Do nothing */;
1189                 if (*end == '\0') {
1190                         break;
1191                 }
1192
1193                 item = g_strndup (text, end - text);
1194                 g_ptr_array_add (array, item);
1195                 DEBUG ("\tITEM: \"%s\"", item);
1196
1197                 text = end;
1198                 max_parts--;
1199         }
1200
1201         /* Append last part if not empty */
1202         item = g_strstrip (g_strdup (text));
1203         if (!EMP_STR_EMPTY (item)) {
1204                 g_ptr_array_add (array, item);
1205                 DEBUG ("\tITEM: \"%s\"", item);
1206         } else {
1207                 g_free (item);
1208         }
1209
1210         /* Make the array NULL-terminated */
1211         g_ptr_array_add (array, NULL);
1212
1213         return (GStrv) g_ptr_array_free (array, FALSE);
1214 }
1215
1216 static gboolean
1217 has_prefix_case (const gchar *s,
1218                   const gchar *prefix)
1219 {
1220         return g_ascii_strncasecmp (s, prefix, strlen (prefix)) == 0;
1221 }
1222
1223 static void
1224 chat_send (EmpathyChat  *chat,
1225            const gchar *msg)
1226 {
1227         EmpathyChatPriv *priv;
1228         TpMessage  *message;
1229         guint            i;
1230
1231         if (EMP_STR_EMPTY (msg)) {
1232                 return;
1233         }
1234
1235         priv = GET_PRIV (chat);
1236
1237         chat_input_history_add (chat, msg, FALSE);
1238
1239         if (msg[0] == '/') {
1240                 gboolean second_slash = FALSE;
1241                 const gchar *iter = msg + 1;
1242
1243                 for (i = 0; i < G_N_ELEMENTS (commands); i++) {
1244                         GStrv strv;
1245                         guint strv_len;
1246                         gchar c;
1247
1248                         if (!has_prefix_case (msg + 1, commands[i].prefix)) {
1249                                 continue;
1250                         }
1251                         c = *(msg + 1 + strlen (commands[i].prefix));
1252                         if (c != '\0' && !g_ascii_isspace (c)) {
1253                                 continue;
1254                         }
1255                         if (commands[i].is_supported != NULL) {
1256                                 if (!commands[i].is_supported (chat)) {
1257                                         continue;
1258                                 }
1259                         }
1260
1261                         /* We can't use g_strsplit here because it does
1262                          * not deal correctly if we have more than one space
1263                          * between args */
1264                         strv = chat_command_parse (msg + 1, commands[i].max_parts);
1265
1266                         strv_len = g_strv_length (strv);
1267                         if (strv_len < commands[i].min_parts ||
1268                             strv_len > commands[i].max_parts) {
1269                                 chat_command_show_help (chat, &commands[i]);
1270                                 g_strfreev (strv);
1271                                 return;
1272                         }
1273
1274                         commands[i].func (chat, strv);
1275                         g_strfreev (strv);
1276                         return;
1277                 }
1278
1279                 /* Also allow messages with two slashes before the
1280                  * first space, so it is possible to send a /unix/path.
1281                  * This heuristic is kind of crap. */
1282                 while (*iter != '\0' && !g_ascii_isspace (*iter)) {
1283                         if (*iter == '/') {
1284                                 second_slash = TRUE;
1285                                 break;
1286                         }
1287                         iter++;
1288                 }
1289
1290                 if (!second_slash) {
1291                         empathy_chat_view_append_event (chat->view,
1292                                 _("Unknown command; see /help for the available"
1293                                   " commands"));
1294                         return;
1295                 }
1296         }
1297
1298         message = tp_client_message_new_text (TP_CHANNEL_TEXT_MESSAGE_TYPE_NORMAL,
1299                 msg);
1300         empathy_tp_chat_send (priv->tp_chat, message);
1301         g_object_unref (message);
1302 }
1303
1304 static void
1305 chat_input_text_view_send (EmpathyChat *chat)
1306 {
1307         GtkTextBuffer  *buffer;
1308         GtkTextIter     start, end;
1309         gchar          *msg;
1310
1311         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1312
1313         gtk_text_buffer_get_bounds (buffer, &start, &end);
1314         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1315
1316         /* clear the input field */
1317         gtk_text_buffer_set_text (buffer, "", -1);
1318         /* delete input history modifications */
1319         chat_input_history_revert (chat);
1320
1321         chat_send (chat, msg);
1322         g_free (msg);
1323 }
1324
1325 static void
1326 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
1327                        EmpathyContact     *contact,
1328                        TpChannelChatState  state,
1329                        EmpathyChat        *chat)
1330 {
1331         EmpathyChatPriv *priv;
1332         GList          *l;
1333         gboolean        was_composing;
1334
1335         priv = GET_PRIV (chat);
1336
1337         if (empathy_contact_is_user (contact)) {
1338                 /* We don't care about our own chat state */
1339                 return;
1340         }
1341
1342         was_composing = (priv->compositors != NULL);
1343
1344         /* Find the contact in the list. After that l is the list elem or NULL */
1345         for (l = priv->compositors; l; l = l->next) {
1346                 if (contact == l->data) {
1347                         break;
1348                 }
1349         }
1350
1351         switch (state) {
1352         case TP_CHANNEL_CHAT_STATE_GONE:
1353         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1354         case TP_CHANNEL_CHAT_STATE_PAUSED:
1355         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1356                 /* Contact is not composing */
1357                 if (l) {
1358                         priv->compositors = g_list_remove_link (priv->compositors, l);
1359                         g_object_unref (l->data);
1360                         g_list_free1 (l);
1361                 }
1362                 break;
1363         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1364                 /* Contact is composing */
1365                 if (!l) {
1366                         priv->compositors = g_list_prepend (priv->compositors,
1367                                                             g_object_ref (contact));
1368                 }
1369                 break;
1370         default:
1371                 g_assert_not_reached ();
1372         }
1373
1374         DEBUG ("Was composing: %s now composing: %s",
1375                 was_composing ? "yes" : "no",
1376                 priv->compositors ? "yes" : "no");
1377
1378         if ((was_composing && !priv->compositors) ||
1379             (!was_composing && priv->compositors)) {
1380                 /* Composing state changed */
1381                 g_signal_emit (chat, signals[COMPOSING], 0,
1382                                priv->compositors != NULL);
1383         }
1384 }
1385
1386 static GRegex *
1387 get_highlight_regex_for (const gchar *name)
1388 {
1389         GRegex *regex;
1390         gchar *name_esc, *pattern;
1391         GError *error = NULL;
1392
1393         name_esc = g_regex_escape_string (name, -1);
1394         pattern = g_strdup_printf ("\\b%s\\b", name_esc);
1395         regex = g_regex_new (pattern, G_REGEX_CASELESS | G_REGEX_OPTIMIZE, 0,
1396                 &error);
1397
1398         if (regex == NULL) {
1399                 DEBUG ("couldn't compile regex /%s/: %s", pattern,
1400                         error->message);
1401
1402                 g_error_free (error);
1403         }
1404
1405         g_free (pattern);
1406         g_free (name_esc);
1407
1408         return regex;
1409 }
1410
1411 static gboolean
1412 chat_should_highlight (EmpathyChat *chat,
1413         EmpathyMessage *message)
1414 {
1415         EmpathyContact *contact;
1416         const gchar   *msg, *to;
1417         gboolean       ret_val = FALSE;
1418         TpChannelTextMessageFlags flags;
1419         GRegex *regex;
1420
1421         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1422
1423         msg = empathy_message_get_body (message);
1424         if (!msg) {
1425                 return FALSE;
1426         }
1427
1428         contact = empathy_tp_chat_get_self_contact (chat->priv->tp_chat);
1429         if (!contact) {
1430                 return FALSE;
1431         }
1432
1433         to = empathy_contact_get_alias (contact);
1434         if (!to) {
1435                 return FALSE;
1436         }
1437
1438         flags = empathy_message_get_flags (message);
1439         if (flags & TP_CHANNEL_TEXT_MESSAGE_FLAG_SCROLLBACK) {
1440                 /* FIXME: Ideally we shouldn't highlight scrollback messages only if they
1441                  * have already been received by the user before (and so are in the logs) */
1442                 return FALSE;
1443         }
1444
1445         regex = get_highlight_regex_for (to);
1446         if (regex != NULL) {
1447                 ret_val = g_regex_match (regex, msg, 0, NULL);
1448                 g_regex_unref (regex);
1449         }
1450
1451         return ret_val;
1452 }
1453
1454 static void
1455 chat_message_received (EmpathyChat *chat,
1456         EmpathyMessage *message,
1457         gboolean pending)
1458 {
1459         EmpathyChatPriv *priv = GET_PRIV (chat);
1460         EmpathyContact  *sender;
1461
1462         sender = empathy_message_get_sender (message);
1463
1464         if (empathy_message_is_edit (message)) {
1465                 DEBUG ("Editing message '%s' to '%s'",
1466                         empathy_message_get_supersedes (message),
1467                         empathy_message_get_body (message));
1468
1469                 empathy_chat_view_edit_message (chat->view, message);
1470         } else {
1471                 gboolean should_highlight = chat_should_highlight (chat, message);
1472                 DEBUG ("Appending new message '%s' from %s (%d)",
1473                         empathy_message_get_token (message),
1474                         empathy_contact_get_alias (sender),
1475                         empathy_contact_get_handle (sender));
1476
1477                 empathy_chat_view_append_message (chat->view, message, should_highlight);
1478
1479                 if (empathy_message_is_incoming (message)) {
1480                         priv->unread_messages++;
1481                         g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1482                 }
1483
1484                 g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, pending,
1485                                should_highlight);
1486         }
1487
1488         /* We received a message so the contact is no longer
1489          * composing */
1490         chat_state_changed_cb (priv->tp_chat, sender,
1491                                TP_CHANNEL_CHAT_STATE_ACTIVE,
1492                                chat);
1493 }
1494
1495 static void
1496 chat_message_received_cb (EmpathyTpChat  *tp_chat,
1497                           EmpathyMessage *message,
1498                           EmpathyChat    *chat)
1499 {
1500         chat_message_received (chat, message, FALSE);
1501 }
1502
1503 static void
1504 chat_message_acknowledged_cb (EmpathyTpChat  *tp_chat,
1505                               EmpathyMessage *message,
1506                               EmpathyChat    *chat)
1507 {
1508         EmpathyChatPriv *priv = GET_PRIV (chat);
1509
1510         empathy_chat_view_message_acknowledged (chat->view,
1511             message);
1512
1513         if (!empathy_message_is_edit (message)) {
1514                 priv->unread_messages--;
1515                 g_object_notify (G_OBJECT (chat), "nb-unread-messages");
1516         }
1517 }
1518
1519 static void
1520 append_balance_error (EmpathyChat *chat,
1521                       const gchar *message_body)
1522 {
1523         EmpathyChatPriv *priv = GET_PRIV (chat);
1524         TpConnection *conn = tp_channel_borrow_connection (TP_CHANNEL (priv->tp_chat));
1525         const gchar *uri = tp_connection_get_balance_uri (conn);
1526         const gchar *error = _("insufficient balance to send message");
1527         gchar *str, *str_markup = NULL;
1528
1529         if (message_body != NULL) {
1530                 str = g_strdup_printf (_("Error sending message '%s': %s"), message_body, error);
1531         } else {
1532                 str = g_strdup_printf (_("Error sending message: %s"), error);
1533         }
1534
1535         if (!tp_str_empty (uri)) {
1536                 /* translators: error used when user doesn't have enough credit on his
1537                  * account to send the message. */
1538                 gchar *markup_error = g_strdup_printf (_("insufficient balance to send message."
1539                                                          " <a href='%s'>Top up</a>."), uri);
1540
1541                 if (message_body != NULL) {
1542                         gchar *escaped_body = g_markup_escape_text (message_body, -1);
1543
1544                         str_markup = g_strdup_printf (_("Error sending message '%s': %s"),
1545                                 escaped_body, markup_error);
1546
1547                         g_free (escaped_body);
1548                 } else {
1549                         str_markup = g_strdup_printf (_("Error sending message: %s"), markup_error);
1550                 }
1551
1552                 g_free (markup_error);
1553         }
1554
1555         if (str_markup != NULL)
1556                 empathy_chat_view_append_event_markup (chat->view, str_markup, str);
1557         else
1558                 empathy_chat_view_append_event (chat->view, str);
1559
1560         g_free (str);
1561         g_free (str_markup);
1562 }
1563
1564 static void
1565 chat_send_error_cb (EmpathyTpChat          *tp_chat,
1566                     const gchar            *message_body,
1567                     TpChannelTextSendError  error_code,
1568                     const gchar            *dbus_error,
1569                     EmpathyChat            *chat)
1570 {
1571         const gchar *error = NULL;
1572         gchar       *str;
1573
1574         if (!tp_strdiff (dbus_error, TP_ERROR_STR_INSUFFICIENT_BALANCE)) {
1575                 append_balance_error (chat, message_body);
1576                 return;
1577         } else if (!tp_strdiff (dbus_error, TP_ERROR_STR_NOT_CAPABLE)) {
1578                 error = _("not capable");
1579         }
1580
1581         if (error == NULL) {
1582                 /* if we didn't find a dbus-error, try the old error */
1583                 switch (error_code) {
1584                 case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
1585                         error = _("offline");
1586                         break;
1587                 case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
1588                         error = _("invalid contact");
1589                         break;
1590                 case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
1591                         error = _("permission denied");
1592                         break;
1593                 case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
1594                         error = _("too long message");
1595                         break;
1596                 case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
1597                         error = _("not implemented");
1598                         break;
1599                 case TP_CHANNEL_TEXT_SEND_ERROR_UNKNOWN:
1600                 default:
1601                         error = _("unknown");
1602                         break;
1603                 }
1604         }
1605
1606         if (message_body != NULL) {
1607                         str = g_strdup_printf (_("Error sending message '%s': %s"),
1608                                 message_body, error);
1609         }
1610         else {
1611                         str = g_strdup_printf (_("Error sending message: %s"), error);
1612         }
1613
1614         empathy_chat_view_append_event (chat->view, str);
1615         g_free (str);
1616 }
1617
1618 static void
1619 chat_topic_label_size_allocate_cb (GtkLabel *label,
1620                                    GtkAllocation *allocation,
1621                                    EmpathyChat *chat)
1622 {
1623         EmpathyChatPriv *priv = GET_PRIV (chat);
1624
1625         if (!gtk_label_get_line_wrap (label)) {
1626                 if (pango_layout_is_ellipsized (gtk_label_get_layout (label)))
1627                         gtk_widget_show (priv->expander_topic);
1628                 else
1629                         gtk_widget_hide (priv->expander_topic);
1630
1631                 return;
1632         }
1633 }
1634
1635 static void
1636 chat_topic_expander_activate_cb (GtkExpander *expander,
1637                                  GParamSpec *param_spec,
1638                                  EmpathyChat *chat)
1639 {
1640         EmpathyChatPriv *priv = GET_PRIV (chat);
1641
1642         if (gtk_expander_get_expanded (expander)) {
1643                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_NONE);
1644                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), TRUE);
1645         } else {
1646                 gtk_label_set_ellipsize (GTK_LABEL (priv->label_topic), PANGO_ELLIPSIZE_END);
1647                 gtk_label_set_line_wrap (GTK_LABEL (priv->label_topic), FALSE);
1648         }
1649 }
1650
1651 static void
1652 chat_subject_changed_cb (EmpathyChat *chat)
1653 {
1654         EmpathyChatPriv *priv = GET_PRIV (chat);
1655
1656                 g_free (priv->subject);
1657                 priv->subject = g_strdup (empathy_tp_chat_get_subject (priv->tp_chat));
1658                 g_object_notify (G_OBJECT (chat), "subject");
1659
1660                 if (EMP_STR_EMPTY (priv->subject)) {
1661                         gtk_widget_hide (priv->hbox_topic);
1662                 } else {
1663                         gchar *markup_topic;
1664                         gchar *markup_text;
1665
1666                         markup_topic = empathy_add_link_markup (priv->subject);
1667                         markup_text = g_strdup_printf ("<span weight=\"bold\">%s</span> %s",
1668                                 _("Topic:"), markup_topic);
1669
1670                         gtk_label_set_markup (GTK_LABEL (priv->label_topic), markup_text);
1671                         g_free (markup_text);
1672                         g_free (markup_topic);
1673
1674                         gtk_widget_show (priv->hbox_topic);
1675                 }
1676                 if (priv->block_events_timeout_id == 0) {
1677                         gchar *str;
1678
1679                         if (!EMP_STR_EMPTY (priv->subject)) {
1680                                 str = g_strdup_printf (_("Topic set to: %s"), priv->subject);
1681                         } else {
1682                                 str = g_strdup (_("No topic defined"));
1683                         }
1684                         empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
1685                         g_free (str);
1686                 }
1687 }
1688
1689 static void
1690 chat_title_changed_cb (EmpathyChat *chat)
1691 {
1692         EmpathyChatPriv *priv = GET_PRIV (chat);
1693
1694                 g_free (priv->name);
1695                 priv->name = g_strdup (empathy_tp_chat_get_title (priv->tp_chat));
1696                 g_object_notify (G_OBJECT (chat), "name");
1697 }
1698
1699 static gboolean
1700 chat_input_text_get_word_from_iter (GtkTextIter   *iter,
1701                                     GtkTextIter   *start,
1702                                     GtkTextIter   *end)
1703 {
1704         GtkTextIter word_start = *iter;
1705         GtkTextIter word_end = *iter;
1706         GtkTextIter tmp;
1707
1708         if (gtk_text_iter_inside_word (&word_end) &&
1709                         !gtk_text_iter_ends_word (&word_end)) {
1710                 gtk_text_iter_forward_word_end (&word_end);
1711         }
1712
1713         tmp = word_end;
1714
1715         if (gtk_text_iter_get_char (&tmp) == '\'') {
1716                 gtk_text_iter_forward_char (&tmp);
1717
1718                 if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1719                         gtk_text_iter_forward_word_end (&word_end);
1720                 }
1721         }
1722
1723
1724         if (gtk_text_iter_inside_word (&word_start) ||
1725                         gtk_text_iter_ends_word (&word_start)) {
1726                 if (!gtk_text_iter_starts_word (&word_start) ||
1727                                 gtk_text_iter_equal (&word_start, &word_end)) {
1728                         gtk_text_iter_backward_word_start (&word_start);
1729                 }
1730
1731                 tmp = word_start;
1732                 gtk_text_iter_backward_char (&tmp);
1733
1734                 if (gtk_text_iter_get_char (&tmp) == '\'') {
1735                         gtk_text_iter_backward_char (&tmp);
1736
1737                         if (g_unichar_isalpha (gtk_text_iter_get_char (&tmp))) {
1738                                 gtk_text_iter_backward_word_start (&word_start);
1739                         }
1740                 }
1741         }
1742
1743         *start = word_start;
1744         *end = word_end;
1745         return TRUE;
1746 }
1747
1748 static void
1749 chat_input_text_buffer_insert_text_cb (GtkTextBuffer *buffer,
1750                                        GtkTextIter   *location,
1751                                        gchar         *text,
1752                                        gint           len,
1753                                        EmpathyChat   *chat)
1754 {
1755         GtkTextIter iter, pos;
1756
1757         /* Remove all misspelled tags in the inserted text.
1758          * This happens when text is inserted within a misspelled word. */
1759         gtk_text_buffer_get_iter_at_offset (buffer, &iter,
1760                                             gtk_text_iter_get_offset (location) - len);
1761         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1762                                             &iter, location);
1763
1764         gtk_text_buffer_get_iter_at_mark (buffer, &pos, gtk_text_buffer_get_insert (buffer));
1765
1766         do {
1767                 GtkTextIter start, end;
1768                 gchar *str;
1769
1770                 if (!chat_input_text_get_word_from_iter (&iter, &start, &end))
1771                         continue;
1772
1773                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1774
1775                 if (gtk_text_iter_in_range (&pos, &start, &end) ||
1776                                 gtk_text_iter_equal (&pos, &end) ||
1777                                 empathy_spell_check (str)) {
1778                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
1779                 } else {
1780                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
1781                 }
1782
1783                 g_free (str);
1784
1785         } while (gtk_text_iter_forward_word_end (&iter) &&
1786                  gtk_text_iter_compare (&iter, location) <= 0);
1787 }
1788
1789 static void
1790 chat_input_text_buffer_delete_range_cb (GtkTextBuffer *buffer,
1791                                         GtkTextIter   *start,
1792                                         GtkTextIter   *end,
1793                                         EmpathyChat   *chat)
1794 {
1795         GtkTextIter word_start, word_end;
1796
1797         if (chat_input_text_get_word_from_iter (start, &word_start, &word_end)) {
1798                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled",
1799                                                     &word_start, &word_end);
1800         }
1801 }
1802
1803 static void
1804 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
1805                                    EmpathyChat    *chat)
1806 {
1807         if (gtk_text_buffer_get_char_count (buffer) == 0) {
1808                 chat_composing_stop (chat);
1809         } else {
1810                 chat_composing_start (chat);
1811         }
1812 }
1813
1814 static void
1815 chat_input_text_buffer_notify_cursor_position_cb (GtkTextBuffer *buffer,
1816                                                   GParamSpec    *pspec,
1817                                                   EmpathyChat    *chat)
1818 {
1819         GtkTextIter pos;
1820         GtkTextIter prev_pos;
1821         GtkTextIter word_start;
1822         GtkTextIter word_end;
1823         GtkTextMark *mark;
1824         gchar *str;
1825
1826         mark = gtk_text_buffer_get_mark (buffer, "previous-cursor-position");
1827
1828         gtk_text_buffer_get_iter_at_mark (buffer, &pos,
1829                                           gtk_text_buffer_get_insert (buffer));
1830         gtk_text_buffer_get_iter_at_mark (buffer, &prev_pos, mark);
1831
1832         if (!chat_input_text_get_word_from_iter (&prev_pos, &word_start, &word_end))
1833                 goto out;
1834
1835         if (!gtk_text_iter_in_range (&pos, &word_start, &word_end) &&
1836                         !gtk_text_iter_equal (&pos, &word_end)) {
1837                 str = gtk_text_buffer_get_text (buffer,
1838                                         &word_start, &word_end, FALSE);
1839
1840                 if (!empathy_spell_check (str)) {
1841                         gtk_text_buffer_apply_tag_by_name (buffer,
1842                                         "misspelled", &word_start, &word_end);
1843                 } else {
1844                         gtk_text_buffer_remove_tag_by_name (buffer,
1845                                         "misspelled", &word_start, &word_end);
1846                 }
1847
1848                 g_free (str);
1849         }
1850
1851 out:
1852         gtk_text_buffer_move_mark (buffer, mark, &pos);
1853 }
1854
1855 static gboolean
1856 empathy_isspace_cb (gunichar c,
1857                  gpointer data)
1858 {
1859         return g_unichar_isspace (c);
1860 }
1861
1862 static gboolean
1863 chat_input_key_press_event_cb (GtkWidget   *widget,
1864                                GdkEventKey *event,
1865                                EmpathyChat *chat)
1866 {
1867         EmpathyChatPriv *priv;
1868         GtkAdjustment  *adj;
1869         gdouble         val;
1870         GtkWidget      *text_view_sw;
1871
1872         priv = GET_PRIV (chat);
1873
1874         priv->most_recent_event_type = event->type;
1875
1876         /* Catch ctrl+up/down so we can traverse messages we sent */
1877         if ((event->state & GDK_CONTROL_MASK) &&
1878             (event->keyval == GDK_KEY_Up ||
1879              event->keyval == GDK_KEY_Down)) {
1880                 GtkTextBuffer *buffer;
1881                 const gchar   *str;
1882
1883                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1884                 chat_input_history_update (chat, buffer);
1885
1886                 if (event->keyval == GDK_KEY_Up) {
1887                         str = chat_input_history_get_next (chat);
1888                 } else {
1889                         str = chat_input_history_get_prev (chat);
1890                 }
1891
1892                 g_signal_handlers_block_by_func (buffer,
1893                                                  chat_input_text_buffer_changed_cb,
1894                                                  chat);
1895                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
1896                 g_signal_handlers_unblock_by_func (buffer,
1897                                                    chat_input_text_buffer_changed_cb,
1898                                                    chat);
1899
1900                 return TRUE;
1901         }
1902
1903         /* Catch enter but not ctrl/shift-enter */
1904         if (IS_ENTER (event->keyval) &&
1905             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1906                 GtkTextView *view;
1907
1908                 /* This is to make sure that kinput2 gets the enter. And if
1909                  * it's handled there we shouldn't send on it. This is because
1910                  * kinput2 uses Enter to commit letters. See:
1911                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
1912                  */
1913
1914                 view = GTK_TEXT_VIEW (chat->input_text_view);
1915                 if (gtk_text_view_im_context_filter_keypress (view, event)) {
1916                         gtk_text_view_reset_im_context (view);
1917                         return TRUE;
1918                 }
1919
1920                 chat_input_text_view_send (chat);
1921                 return TRUE;
1922         }
1923
1924         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
1925
1926         if (IS_ENTER (event->keyval) &&
1927             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
1928                 /* Newline for shift/control-enter. */
1929                 return FALSE;
1930         }
1931         if (!(event->state & GDK_CONTROL_MASK) &&
1932             event->keyval == GDK_KEY_Page_Up) {
1933                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1934                 gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) - gtk_adjustment_get_page_size (adj));
1935                 return TRUE;
1936         }
1937         if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
1938             event->keyval == GDK_KEY_Page_Down) {
1939                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
1940                 val = MIN (gtk_adjustment_get_value (adj) + gtk_adjustment_get_page_size (adj),
1941                            gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj));
1942                 gtk_adjustment_set_value (adj, val);
1943                 return TRUE;
1944         }
1945         if (event->keyval == GDK_KEY_Escape) {
1946                 empathy_search_bar_hide (EMPATHY_SEARCH_BAR (priv->search_bar));
1947         }
1948         if (!(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) &&
1949             event->keyval == GDK_KEY_Tab) {
1950                 GtkTextBuffer *buffer;
1951                 GtkTextIter    start, current;
1952                 gchar         *nick, *completed;
1953                 GList         *list, *completed_list;
1954                 gboolean       is_start_of_buffer;
1955
1956                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (EMPATHY_CHAT (chat)->input_text_view));
1957                 gtk_text_buffer_get_iter_at_mark (buffer, &current, gtk_text_buffer_get_insert (buffer));
1958
1959                 /* Get the start of the nick to complete. */
1960                 gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
1961                 if (gtk_text_iter_backward_find_char (&start, &empathy_isspace_cb, NULL, NULL)) {
1962                         gtk_text_iter_set_offset (&start, gtk_text_iter_get_offset (&start) + 1);
1963                 }
1964                 is_start_of_buffer = gtk_text_iter_is_start (&start);
1965
1966                 list = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (priv->tp_chat));
1967                 g_completion_add_items (priv->completion, list);
1968
1969                 nick = gtk_text_buffer_get_text (buffer, &start, &current, FALSE);
1970                 completed_list = g_completion_complete (priv->completion,
1971                                                         nick,
1972                                                         &completed);
1973
1974                 g_free (nick);
1975
1976                 if (completed) {
1977                         guint        len;
1978                         const gchar *text;
1979                         GString     *message = NULL;
1980                         GList       *l;
1981
1982                         gtk_text_buffer_delete (buffer, &start, &current);
1983
1984                         len = g_list_length (completed_list);
1985
1986                         if (len == 1) {
1987                                 /* If we only have one hit, use that text
1988                                  * instead of the text in completed since the
1989                                  * completed text will use the typed string
1990                                  * which might be cased all wrong.
1991                                  * Fixes #120876
1992                                  * */
1993                                 text = empathy_contact_get_alias (completed_list->data);
1994                         } else {
1995                                 text = completed;
1996
1997                                 /* Print all hits to the scrollback view, so the
1998                                  * user knows what possibilities he has.
1999                                  * Fixes #599779
2000                                  * */
2001                                  message = g_string_new ("");
2002                                  for (l = completed_list; l != NULL; l = l->next) {
2003                                         g_string_append (message, empathy_contact_get_alias (l->data));
2004                                         g_string_append (message, " - ");
2005                                  }
2006                                  empathy_chat_view_append_event (chat->view, message->str);
2007                                  g_string_free (message, TRUE);
2008                         }
2009
2010                         gtk_text_buffer_insert_at_cursor (buffer, text, strlen (text));
2011
2012                         if (len == 1 && is_start_of_buffer) {
2013                             gchar *complete_char;
2014
2015                             complete_char = g_settings_get_string (
2016                                     priv->gsettings_chat,
2017                                     EMPATHY_PREFS_CHAT_NICK_COMPLETION_CHAR);
2018
2019                             if (complete_char != NULL) {
2020                                 gtk_text_buffer_insert_at_cursor (buffer,
2021                                                                   complete_char,
2022                                                                   strlen (complete_char));
2023                                 gtk_text_buffer_insert_at_cursor (buffer, " ", 1);
2024                                 g_free (complete_char);
2025                             }
2026                         }
2027
2028                         g_free (completed);
2029                 }
2030
2031                 g_completion_clear_items (priv->completion);
2032
2033                 g_list_foreach (list, (GFunc) g_object_unref, NULL);
2034                 g_list_free (list);
2035
2036                 return TRUE;
2037         }
2038
2039         return FALSE;
2040 }
2041
2042 static gboolean
2043 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
2044                                   GdkEvent   *event,
2045                                   EmpathyChat *chat)
2046 {
2047         gtk_widget_grab_focus (chat->input_text_view);
2048
2049         return TRUE;
2050 }
2051
2052 static void
2053 chat_input_realize_cb (GtkWidget   *widget,
2054                        EmpathyChat *chat)
2055 {
2056         DEBUG ("Setting focus to the input text view");
2057         if (gtk_widget_is_sensitive (widget)) {
2058                 gtk_widget_grab_focus (widget);
2059         }
2060 }
2061
2062 static void
2063 chat_input_has_focus_notify_cb (GtkWidget   *widget,
2064                                 GParamSpec  *pspec,
2065                                 EmpathyChat *chat)
2066 {
2067         empathy_chat_view_focus_toggled (chat->view, gtk_widget_has_focus (widget));
2068 }
2069
2070 static void
2071 chat_insert_smiley_activate_cb (EmpathySmileyManager *manager,
2072                                 EmpathySmiley        *smiley,
2073                                 gpointer              user_data)
2074 {
2075         EmpathyChat   *chat = EMPATHY_CHAT (user_data);
2076         GtkTextBuffer *buffer;
2077         GtkTextIter    iter;
2078
2079         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2080
2081         gtk_text_buffer_get_end_iter (buffer, &iter);
2082         gtk_text_buffer_insert (buffer, &iter, smiley->str, -1);
2083
2084         gtk_text_buffer_get_end_iter (buffer, &iter);
2085         gtk_text_buffer_insert (buffer, &iter, " ", -1);
2086 }
2087
2088 typedef struct {
2089         EmpathyChat  *chat;
2090         gchar       *word;
2091
2092         GtkTextIter  start;
2093         GtkTextIter  end;
2094 } EmpathyChatSpell;
2095
2096 static EmpathyChatSpell *
2097 chat_spell_new (EmpathyChat  *chat,
2098                 const gchar *word,
2099                 GtkTextIter  start,
2100                 GtkTextIter  end)
2101 {
2102         EmpathyChatSpell *chat_spell;
2103
2104         chat_spell = g_slice_new0 (EmpathyChatSpell);
2105
2106         chat_spell->chat = g_object_ref (chat);
2107         chat_spell->word = g_strdup (word);
2108         chat_spell->start = start;
2109         chat_spell->end = end;
2110
2111         return chat_spell;
2112 }
2113
2114 static void
2115 chat_spell_free (EmpathyChatSpell *chat_spell)
2116 {
2117         g_object_unref (chat_spell->chat);
2118         g_free (chat_spell->word);
2119         g_slice_free (EmpathyChatSpell, chat_spell);
2120 }
2121
2122 static void
2123 chat_spelling_menu_activate_cb (GtkMenuItem     *menu_item,
2124                                                 EmpathyChatSpell *chat_spell)
2125 {
2126     empathy_chat_correct_word (chat_spell->chat,
2127                                &(chat_spell->start),
2128                                &(chat_spell->end),
2129                                gtk_menu_item_get_label (menu_item));
2130 }
2131
2132
2133 static GtkWidget *
2134 chat_spelling_build_suggestions_menu (const gchar *code,
2135                                       EmpathyChatSpell *chat_spell)
2136 {
2137         GList     *suggestions, *l;
2138         GtkWidget *menu, *menu_item;
2139
2140         suggestions = empathy_spell_get_suggestions (code, chat_spell->word);
2141         if (suggestions == NULL)
2142                 return NULL;
2143
2144         menu = gtk_menu_new ();
2145         for (l = suggestions; l; l = l->next) {
2146                 menu_item = gtk_menu_item_new_with_label (l->data);
2147                 g_signal_connect (G_OBJECT (menu_item), "activate",
2148                                   G_CALLBACK (chat_spelling_menu_activate_cb),
2149                                   chat_spell);
2150                 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
2151         }
2152         empathy_spell_free_suggestions (suggestions);
2153
2154         gtk_widget_show_all (menu);
2155
2156         return menu;
2157 }
2158
2159 static GtkWidget *
2160 chat_spelling_build_menu (EmpathyChatSpell *chat_spell)
2161 {
2162         GtkWidget *menu, *submenu, *item;
2163         GList     *codes, *l;
2164
2165         codes = empathy_spell_get_enabled_language_codes ();
2166         g_assert (codes != NULL);
2167
2168         if (g_list_length (codes) > 1) {
2169                 menu = gtk_menu_new ();
2170
2171                 for (l = codes; l; l = l->next) {
2172                         const gchar *code, *name;
2173
2174                         code = l->data;
2175                         name = empathy_spell_get_language_name (code);
2176                         if (!name)
2177                                 continue;
2178
2179                         item = gtk_image_menu_item_new_with_label (name);
2180
2181                         submenu = chat_spelling_build_suggestions_menu (
2182                                         code, chat_spell);
2183                         if (submenu == NULL)
2184                                 gtk_widget_set_sensitive (item, FALSE);
2185                         else
2186                                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item),
2187                                                            submenu);
2188                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2189                 }
2190         } else {
2191                 menu = chat_spelling_build_suggestions_menu (codes->data,
2192                                                              chat_spell);
2193                 if (menu == NULL) {
2194                         menu = gtk_menu_new ();
2195                         item = gtk_menu_item_new_with_label (_("(No Suggestions)"));
2196                         gtk_widget_set_sensitive (item, FALSE);
2197                         gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
2198                 }
2199         }
2200         g_list_free (codes);
2201
2202         gtk_widget_show_all (menu);
2203
2204         return menu;
2205 }
2206
2207 typedef struct {
2208         EmpathyChat  *chat;
2209         gchar        *word;
2210         gchar        *code;
2211 } EmpathyChatWord;
2212
2213 static EmpathyChatWord *
2214 chat_word_new (EmpathyChat  *chat,
2215                 const gchar  *word,
2216                 const gchar  *code)
2217 {
2218         EmpathyChatWord *chat_word;
2219
2220         chat_word = g_slice_new0 (EmpathyChatWord);
2221
2222         chat_word->chat = g_object_ref (chat);
2223         chat_word->word = g_strdup (word);
2224         chat_word->code = g_strdup (code);
2225
2226         return chat_word;
2227 }
2228
2229 static void
2230 chat_word_free (EmpathyChatWord *chat_word)
2231 {
2232         g_object_unref (chat_word->chat);
2233         g_free (chat_word->word);
2234         g_free (chat_word->code);
2235         g_slice_free (EmpathyChatWord, chat_word);
2236 }
2237
2238 static void
2239 chat_add_to_dictionary_activate_cb (GtkMenuItem     *menu_item,
2240                                     EmpathyChatWord *chat_word)
2241 {
2242         EmpathyChatPriv *priv = GET_PRIV (chat_word->chat);
2243
2244         empathy_spell_add_to_dictionary (chat_word->code,
2245                                          chat_word->word);
2246         priv->update_misspelled_words_id =
2247                 g_idle_add (update_misspelled_words, chat_word->chat);
2248 }
2249
2250 static GtkWidget *
2251 chat_spelling_build_add_to_dictionary_item (EmpathyChatSpell *chat_spell)
2252 {
2253         GtkWidget       *menu, *item, *lang_item, *image;
2254         GList           *codes, *l;
2255         gchar           *label;
2256         const gchar     *code, *name;
2257         EmpathyChatWord *chat_word;
2258
2259         codes = empathy_spell_get_enabled_language_codes ();
2260         g_assert (codes != NULL);
2261         if (g_list_length (codes) > 1) {
2262                 /* translators: %s is the selected word */
2263                 label = g_strdup_printf (_("Add '%s' to Dictionary"),
2264                                         chat_spell->word);
2265                 item = gtk_image_menu_item_new_with_mnemonic (label);
2266                 g_free (label);
2267                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2268                                                       GTK_ICON_SIZE_MENU);
2269                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
2270                                                image);
2271
2272                 menu = gtk_menu_new ();
2273
2274                 for (l = codes; l; l = l->next) {
2275                         code = l->data;
2276                         name = empathy_spell_get_language_name (code);
2277                         if (name == NULL)
2278                                 continue;
2279
2280                         lang_item = gtk_image_menu_item_new_with_label (name);
2281
2282                         chat_word= chat_word_new (chat_spell->chat,
2283                                                   chat_spell->word, code);
2284                         g_object_set_data_full (G_OBJECT (lang_item),
2285                                 "chat-word", chat_word,
2286                                 (GDestroyNotify) chat_word_free);
2287
2288                         g_signal_connect (G_OBJECT (lang_item), "activate",
2289                                 G_CALLBACK (chat_add_to_dictionary_activate_cb),
2290                                 chat_word);
2291                         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), lang_item);
2292                 }
2293                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
2294         } else {
2295                 code = codes->data;
2296                 name = empathy_spell_get_language_name (code);
2297                 g_assert (name != NULL);
2298                 /* translators: first %s is the selected word,
2299                  * second %s is the language name of the target dictionary */
2300                 label = g_strdup_printf (_("Add '%s' to %s Dictionary"),
2301                                         chat_spell->word, name);
2302                 item = gtk_image_menu_item_new_with_mnemonic (label);
2303                 g_free (label);
2304                 image = gtk_image_new_from_icon_name (GTK_STOCK_ADD,
2305                                                       GTK_ICON_SIZE_MENU);
2306                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2307
2308                 chat_word = chat_word_new (chat_spell->chat, chat_spell->word,
2309                                            code);
2310                 g_object_set_data_full (G_OBJECT (item), "chat-word", chat_word,
2311                                         (GDestroyNotify) chat_word_free);
2312
2313                 g_signal_connect (G_OBJECT (item), "activate",
2314                                   G_CALLBACK (chat_add_to_dictionary_activate_cb),
2315                                   chat_word);
2316         }
2317         g_list_free (codes);
2318
2319         gtk_widget_show_all (item);
2320
2321         return item;
2322 }
2323
2324 static void
2325 chat_text_send_cb (GtkMenuItem *menuitem,
2326                    EmpathyChat *chat)
2327 {
2328         chat_input_text_view_send (chat);
2329 }
2330
2331 static gboolean
2332 chat_input_button_press_event_cb (GtkTextView    *view,
2333                                   GdkEventButton *event,
2334                                   EmpathyChat    *chat)
2335 {
2336         EmpathyChatPriv *priv = GET_PRIV (chat);
2337
2338         priv->most_recent_event_type = event->type;
2339
2340         return FALSE;
2341 }
2342
2343 static void
2344 chat_input_populate_popup_cb (GtkTextView *view,
2345                               GtkMenu     *menu,
2346                               EmpathyChat *chat)
2347 {
2348         EmpathyChatPriv      *priv = GET_PRIV (chat);
2349         GtkTextBuffer        *buffer;
2350         GtkTextTagTable      *table;
2351         GtkTextTag           *tag;
2352         gint                  x, y;
2353         GtkTextIter           iter, start, end;
2354         GtkWidget            *item;
2355         gchar                *str = NULL;
2356         EmpathyChatSpell     *chat_spell;
2357         GtkWidget            *spell_menu;
2358         GtkWidget            *spell_item;
2359         EmpathySmileyManager *smiley_manager;
2360         GtkWidget            *smiley_menu;
2361         GtkWidget            *image;
2362
2363         buffer = gtk_text_view_get_buffer (view);
2364
2365         /* Add the emoticon menu. */
2366         item = gtk_separator_menu_item_new ();
2367         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2368         gtk_widget_show (item);
2369
2370         item = gtk_image_menu_item_new_with_mnemonic (_("Insert Smiley"));
2371         image = gtk_image_new_from_icon_name ("face-smile",
2372                                               GTK_ICON_SIZE_MENU);
2373         gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2374         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2375         gtk_widget_show (item);
2376
2377         smiley_manager = empathy_smiley_manager_dup_singleton ();
2378         smiley_menu = empathy_smiley_menu_new (smiley_manager,
2379                                                chat_insert_smiley_activate_cb,
2380                                                chat);
2381         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
2382         g_object_unref (smiley_manager);
2383
2384         /* Add the Send menu item. */
2385         gtk_text_buffer_get_bounds (buffer, &start, &end);
2386         str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2387         if (!EMP_STR_EMPTY (str)) {
2388                 item = gtk_menu_item_new_with_mnemonic (_("_Send"));
2389                 g_signal_connect (G_OBJECT (item), "activate",
2390                                   G_CALLBACK (chat_text_send_cb), chat);
2391                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2392                 gtk_widget_show (item);
2393         }
2394         str = NULL;
2395
2396         /* Add the spell check menu item. */
2397         table = gtk_text_buffer_get_tag_table (buffer);
2398         tag = gtk_text_tag_table_lookup (table, "misspelled");
2399
2400         switch (priv->most_recent_event_type) {
2401             case GDK_BUTTON_PRESS:
2402                 /* get the location from the pointer */
2403                 gdk_window_get_device_position (gtk_widget_get_window (GTK_WIDGET (view)),
2404                         gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (
2405                                 gtk_widget_get_display (GTK_WIDGET (view)))), &x, &y, NULL);
2406
2407                 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
2408                                                        GTK_TEXT_WINDOW_WIDGET,
2409                                                        x, y,
2410                                                        &x, &y);
2411                 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
2412                                                     &iter, x, y);
2413                 break;
2414
2415             default:
2416                 g_warn_if_reached ();
2417                 /* assume the KEY_PRESS case */
2418
2419             case GDK_KEY_PRESS:
2420                 /* get the location from the cursor */
2421                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
2422                                 gtk_text_buffer_get_insert (buffer));
2423                 break;
2424
2425         }
2426
2427         start = end = iter;
2428         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
2429             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
2430
2431                 str = gtk_text_buffer_get_text (buffer,
2432                                                 &start, &end, FALSE);
2433         }
2434         if (!EMP_STR_EMPTY (str)) {
2435                 chat_spell = chat_spell_new (chat, str, start, end);
2436                 g_object_set_data_full (G_OBJECT (menu),
2437                                         "chat-spell", chat_spell,
2438                                         (GDestroyNotify) chat_spell_free);
2439
2440                 item = gtk_separator_menu_item_new ();
2441                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2442                 gtk_widget_show (item);
2443
2444                 /* Spelling suggestions */
2445                 item = gtk_image_menu_item_new_with_mnemonic (_("_Spelling Suggestions"));
2446                 image = gtk_image_new_from_icon_name (GTK_STOCK_SPELL_CHECK,
2447                                                       GTK_ICON_SIZE_MENU);
2448                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
2449
2450                 spell_menu = chat_spelling_build_menu (chat_spell);
2451                 gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), spell_menu);
2452
2453
2454                 spell_item = gtk_separator_menu_item_new ();
2455                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2456                 gtk_widget_show (spell_item);
2457
2458                 /* Add to dictionary */
2459                 spell_item = chat_spelling_build_add_to_dictionary_item (chat_spell);
2460
2461                 gtk_menu_shell_append (GTK_MENU_SHELL (spell_menu), spell_item);
2462                 gtk_widget_show (spell_item);
2463
2464                 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
2465                 gtk_widget_show (item);
2466         }
2467 }
2468
2469
2470 static gboolean
2471 chat_log_filter (TplEvent *event,
2472                  gpointer user_data)
2473 {
2474         EmpathyChat *chat = user_data;
2475         EmpathyMessage *message;
2476         EmpathyChatPriv *priv = GET_PRIV (chat);
2477         const GList *pending;
2478
2479         g_return_val_if_fail (TPL_IS_EVENT (event), FALSE);
2480         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
2481
2482         pending = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2483         message = empathy_message_from_tpl_log_event (event);
2484
2485         for (; pending; pending = g_list_next (pending)) {
2486                 if (empathy_message_equal (message, pending->data)) {
2487                         g_object_unref (message);
2488                         return FALSE;
2489                 }
2490         }
2491
2492         g_object_unref (message);
2493         return TRUE;
2494 }
2495
2496
2497 static void
2498 show_pending_messages (EmpathyChat *chat) {
2499         EmpathyChatPriv *priv = GET_PRIV (chat);
2500         const GList *messages, *l;
2501
2502         g_return_if_fail (EMPATHY_IS_CHAT (chat));
2503
2504         if (chat->view == NULL || priv->tp_chat == NULL)
2505                 return;
2506
2507         if (!priv->can_show_pending)
2508                 return;
2509
2510         messages = empathy_tp_chat_get_pending_messages (priv->tp_chat);
2511
2512         for (l = messages; l != NULL ; l = g_list_next (l)) {
2513                 EmpathyMessage *message = EMPATHY_MESSAGE (l->data);
2514                 chat_message_received (chat, message, TRUE);
2515         }
2516 }
2517
2518
2519 static void
2520 got_filtered_messages_cb (GObject *manager,
2521                 GAsyncResult *result,
2522                 gpointer user_data)
2523 {
2524         GList *l;
2525         GList *messages;
2526         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2527         EmpathyChatPriv *priv = GET_PRIV (chat);
2528         GError *error = NULL;
2529
2530         if (!tpl_log_manager_get_filtered_events_finish (TPL_LOG_MANAGER (manager),
2531                 result, &messages, &error)) {
2532                 DEBUG ("%s. Aborting.", error->message);
2533                 empathy_chat_view_append_event (chat->view,
2534                         _("Failed to retrieve recent logs"));
2535                 g_error_free (error);
2536                 goto out;
2537         }
2538
2539         for (l = messages; l; l = g_list_next (l)) {
2540                 EmpathyMessage *message;
2541
2542                 g_assert (TPL_IS_EVENT (l->data));
2543
2544                 message = empathy_message_from_tpl_log_event (l->data);
2545                 g_object_unref (l->data);
2546
2547                 if (empathy_message_is_edit (message)) {
2548                         /* this is an edited message, create a synthetic event
2549                          * using the supersedes token and
2550                          * original-message-sent timestamp, that we can then
2551                          * replace */
2552                         EmpathyMessage *syn_msg = g_object_new (
2553                                 EMPATHY_TYPE_MESSAGE,
2554                                 "body", "",
2555                                 "token", empathy_message_get_supersedes (message),
2556                                 "type", empathy_message_get_tptype (message),
2557                                 "timestamp", empathy_message_get_original_timestamp (message),
2558                                 "incoming", empathy_message_is_incoming (message),
2559                                 "is-backlog", TRUE,
2560                                 "receiver", empathy_message_get_receiver (message),
2561                                 "sender", empathy_message_get_sender (message),
2562                                 NULL);
2563
2564                         empathy_chat_view_append_message (chat->view, syn_msg,
2565                                                           chat_should_highlight (chat, syn_msg));
2566                         empathy_chat_view_edit_message (chat->view, message);
2567
2568                         g_object_unref (syn_msg);
2569                 } else {
2570                         /* append the latest message */
2571                         empathy_chat_view_append_message (chat->view, message,
2572                                                           chat_should_highlight (chat, message));
2573                 }
2574
2575                 g_object_unref (message);
2576         }
2577         g_list_free (messages);
2578
2579 out:
2580         /* in case of TPL error, skip backlog and show pending messages */
2581         priv->can_show_pending = TRUE;
2582         show_pending_messages (chat);
2583
2584         /* FIXME: See Bug#610994, we are forcing the ACK of the queue. See comments
2585          * about it in EmpathyChatPriv definition */
2586         priv->retrieving_backlogs = FALSE;
2587         empathy_chat_messages_read (chat);
2588
2589         /* Turn back on scrolling */
2590         empathy_chat_view_scroll (chat->view, TRUE);
2591 }
2592
2593 static void
2594 chat_add_logs (EmpathyChat *chat)
2595 {
2596         EmpathyChatPriv *priv = GET_PRIV (chat);
2597         TplEntity       *target;
2598
2599         if (!priv->id) {
2600                 return;
2601         }
2602
2603         /* Turn off scrolling temporarily */
2604         empathy_chat_view_scroll (chat->view, FALSE);
2605
2606         /* Add messages from last conversation */
2607         if (priv->handle_type == TP_HANDLE_TYPE_ROOM)
2608           target = tpl_entity_new_from_room_id (priv->id);
2609         else
2610           target = tpl_entity_new (priv->id, TPL_ENTITY_CONTACT, NULL, NULL);
2611
2612         priv->retrieving_backlogs = TRUE;
2613         tpl_log_manager_get_filtered_events_async (priv->log_manager,
2614                                                    priv->account,
2615                                                    target,
2616                                                    TPL_EVENT_MASK_TEXT,
2617                                                    5,
2618                                                    chat_log_filter,
2619                                                    chat,
2620                                                    got_filtered_messages_cb,
2621                                                    (gpointer) chat);
2622
2623         g_object_unref (target);
2624 }
2625
2626 static gint
2627 chat_contacts_completion_func (const gchar *s1,
2628                                const gchar *s2,
2629                                gsize        n)
2630 {
2631         gchar *tmp, *nick1, *nick2;
2632         gint   ret;
2633
2634         if (s1 == s2) {
2635                 return 0;
2636         }
2637         if (!s1 || !s2) {
2638                 return s1 ? -1 : +1;
2639         }
2640
2641         tmp = g_utf8_normalize (s1, -1, G_NORMALIZE_DEFAULT);
2642         nick1 = g_utf8_casefold (tmp, -1);
2643         g_free (tmp);
2644
2645         tmp = g_utf8_normalize (s2, -1, G_NORMALIZE_DEFAULT);
2646         nick2 = g_utf8_casefold (tmp, -1);
2647         g_free (tmp);
2648
2649         ret = strncmp (nick1, nick2, n);
2650
2651         g_free (nick1);
2652         g_free (nick2);
2653
2654         return ret;
2655 }
2656
2657 static gchar *
2658 build_part_message (guint           reason,
2659                     const gchar    *name,
2660                     EmpathyContact *actor,
2661                     const gchar    *message)
2662 {
2663         GString *s = g_string_new ("");
2664         const gchar *actor_name = NULL;
2665
2666         if (actor != NULL) {
2667                 actor_name = empathy_contact_get_alias (actor);
2668         }
2669
2670         /* Having an actor only really makes sense for a few actions... */
2671         switch (reason) {
2672         case TP_CHANNEL_GROUP_CHANGE_REASON_OFFLINE:
2673                 g_string_append_printf (s, _("%s has disconnected"), name);
2674                 break;
2675         case TP_CHANNEL_GROUP_CHANGE_REASON_KICKED:
2676                 if (actor_name != NULL) {
2677                         /* translators: reverse the order of these arguments
2678                          * if the kicked should come before the kicker in your locale.
2679                          */
2680                         g_string_append_printf (s, _("%1$s was kicked by %2$s"),
2681                                 name, actor_name);
2682                 } else {
2683                         g_string_append_printf (s, _("%s was kicked"), name);
2684                 }
2685                 break;
2686         case TP_CHANNEL_GROUP_CHANGE_REASON_BANNED:
2687                 if (actor_name != NULL) {
2688                         /* translators: reverse the order of these arguments
2689                          * if the banned should come before the banner in your locale.
2690                          */
2691                         g_string_append_printf (s, _("%1$s was banned by %2$s"),
2692                                 name, actor_name);
2693                 } else {
2694                         g_string_append_printf (s, _("%s was banned"), name);
2695                 }
2696                 break;
2697         default:
2698                 g_string_append_printf (s, _("%s has left the room"), name);
2699         }
2700
2701         if (!EMP_STR_EMPTY (message)) {
2702                 /* Note to translators: this string is appended to
2703                  * notifications like "foo has left the room", with the message
2704                  * given by the user living the room. If this poses a problem,
2705                  * please let us know. :-)
2706                  */
2707                 g_string_append_printf (s, _(" (%s)"), message);
2708         }
2709
2710         return g_string_free (s, FALSE);
2711 }
2712
2713 static void
2714 chat_members_changed_cb (EmpathyTpChat  *tp_chat,
2715                          EmpathyContact *contact,
2716                          EmpathyContact *actor,
2717                          guint           reason,
2718                          gchar          *message,
2719                          gboolean        is_member,
2720                          EmpathyChat    *chat)
2721 {
2722         EmpathyChatPriv *priv = GET_PRIV (chat);
2723         const gchar *name = empathy_contact_get_alias (contact);
2724         gchar *str;
2725
2726         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED != reason);
2727
2728         if (priv->block_events_timeout_id != 0)
2729                 return;
2730
2731         if (is_member) {
2732                 str = g_strdup_printf (_("%s has joined the room"),
2733                                        name);
2734         } else {
2735                 str = build_part_message (reason, name, actor, message);
2736         }
2737
2738         empathy_chat_view_append_event (chat->view, str);
2739         g_free (str);
2740 }
2741
2742 static void
2743 chat_member_renamed_cb (EmpathyTpChat  *tp_chat,
2744                          EmpathyContact *old_contact,
2745                          EmpathyContact *new_contact,
2746                          guint           reason,
2747                          gchar          *message,
2748                          EmpathyChat    *chat)
2749 {
2750         EmpathyChatPriv *priv = GET_PRIV (chat);
2751
2752         g_return_if_fail (TP_CHANNEL_GROUP_CHANGE_REASON_RENAMED == reason);
2753
2754         if (priv->block_events_timeout_id == 0) {
2755                 gchar *str;
2756
2757                 str = g_strdup_printf (_("%s is now known as %s"),
2758                                        empathy_contact_get_alias (old_contact),
2759                                        empathy_contact_get_alias (new_contact));
2760                 empathy_chat_view_append_event (chat->view, str);
2761                 g_free (str);
2762         }
2763
2764 }
2765
2766 static gboolean
2767 chat_contacts_visible_timeout_cb (gpointer chat)
2768 {
2769         EmpathyChatPriv *priv = GET_PRIV (chat);
2770
2771         /* Relax the size request */
2772         gtk_widget_set_size_request (priv->vbox_left, -1, -1);
2773
2774         /* Set the position of the slider. This must be done here because
2775          * GtkPaned need to know its size allocation and it will be settled only
2776          * after the gtk_window_resize () tough effect. */
2777         if (priv->contacts_width > 0) {
2778                 gtk_paned_set_position (GTK_PANED (priv->hpaned),
2779                                         priv->contacts_width);
2780         }
2781
2782         priv->contacts_visible_id = 0;
2783
2784         return FALSE;
2785 }
2786
2787 static void
2788 chat_update_contacts_visibility (EmpathyChat *chat,
2789                          gboolean show)
2790 {
2791         EmpathyChatPriv *priv = GET_PRIV (chat);
2792
2793         if (!priv->scrolled_window_contacts) {
2794                 return;
2795         }
2796
2797         if (priv->remote_contact != NULL) {
2798                 show = FALSE;
2799         }
2800
2801         if (show && priv->contact_list_view == NULL) {
2802                 EmpathyIndividualStore *store;
2803                 gint                     min_width;
2804                 GtkAllocation            allocation;
2805
2806                 /* We are adding the contact list to the chat, we don't want the
2807                  * chat view to become too small. If the chat view is already
2808                  * smaller than 250 make sure that size won't change. If the
2809                  * chat view is bigger the contact list will take some space on
2810                  * it but we make sure the chat view don't become smaller than
2811                  * 250. Relax the size request once the resize is done */
2812                 gtk_widget_get_allocation (priv->vbox_left, &allocation);
2813                 min_width = MIN (allocation.width, 250);
2814                 gtk_widget_set_size_request (priv->vbox_left, min_width, -1);
2815
2816                 /* There is no way to know when the window resize will happen
2817                  * since it is WM's decision. Let's hope it won't be longer. */
2818                 if (priv->contacts_visible_id != 0)
2819                         g_source_remove (priv->contacts_visible_id);
2820                 priv->contacts_visible_id = g_timeout_add (500,
2821                         chat_contacts_visible_timeout_cb, chat);
2822
2823                 store = EMPATHY_INDIVIDUAL_STORE (
2824                                 empathy_individual_store_channel_new ((TpChannel *) priv->tp_chat));
2825
2826                 empathy_individual_store_set_show_groups (store, FALSE);
2827
2828                 priv->contact_list_view = GTK_WIDGET (empathy_individual_view_new (store,
2829                         EMPATHY_INDIVIDUAL_VIEW_FEATURE_INDIVIDUAL_TOOLTIP,
2830                         EMPATHY_INDIVIDUAL_FEATURE_ADD_CONTACT |
2831                         EMPATHY_INDIVIDUAL_FEATURE_CHAT |
2832                         EMPATHY_INDIVIDUAL_FEATURE_CALL |
2833                         EMPATHY_INDIVIDUAL_FEATURE_LOG |
2834                         EMPATHY_INDIVIDUAL_FEATURE_INFO));
2835
2836                 empathy_individual_view_set_show_offline (
2837                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2838                 empathy_individual_view_set_show_uninteresting (
2839                         EMPATHY_INDIVIDUAL_VIEW (priv->contact_list_view), TRUE);
2840
2841                 gtk_container_add (GTK_CONTAINER (priv->scrolled_window_contacts),
2842                                    priv->contact_list_view);
2843
2844                 gtk_widget_show (priv->contact_list_view);
2845                 gtk_widget_show (priv->scrolled_window_contacts);
2846                 g_object_unref (store);
2847         } else if (!show) {
2848                 priv->contacts_width = gtk_paned_get_position (GTK_PANED (priv->hpaned));
2849                 gtk_widget_hide (priv->scrolled_window_contacts);
2850                 if (priv->contact_list_view != NULL) {
2851                         gtk_widget_destroy (priv->contact_list_view);
2852                         priv->contact_list_view = NULL;
2853                 }
2854         }
2855 }
2856
2857 void
2858 empathy_chat_set_show_contacts (EmpathyChat *chat,
2859                                 gboolean     show)
2860 {
2861         EmpathyChatPriv *priv = GET_PRIV (chat);
2862
2863         priv->show_contacts = show;
2864
2865         chat_update_contacts_visibility (chat, show);
2866
2867         g_object_notify (G_OBJECT (chat), "show-contacts");
2868 }
2869
2870 static void
2871 chat_remote_contact_changed_cb (EmpathyChat *chat)
2872 {
2873         EmpathyChatPriv *priv = GET_PRIV (chat);
2874
2875         if (priv->remote_contact != NULL) {
2876                 g_object_unref (priv->remote_contact);
2877                 priv->remote_contact = NULL;
2878         }
2879
2880         g_free (priv->id);
2881
2882         priv->id = g_strdup (empathy_tp_chat_get_id (priv->tp_chat));
2883         priv->remote_contact = empathy_tp_chat_get_remote_contact (priv->tp_chat);
2884         if (priv->remote_contact != NULL) {
2885                 g_object_ref (priv->remote_contact);
2886                 priv->handle_type = TP_HANDLE_TYPE_CONTACT;
2887         }
2888         else if (priv->tp_chat != NULL) {
2889                 tp_channel_get_handle ((TpChannel *) priv->tp_chat, &priv->handle_type);
2890         }
2891
2892         chat_update_contacts_visibility (chat, priv->show_contacts);
2893
2894         g_object_notify (G_OBJECT (chat), "remote-contact");
2895         g_object_notify (G_OBJECT (chat), "id");
2896 }
2897
2898 static void
2899 chat_invalidated_cb (EmpathyTpChat *tp_chat,
2900                  guint domain,
2901                  gint code,
2902                  gchar *message,
2903                  EmpathyChat   *chat)
2904 {
2905         EmpathyChatPriv *priv;
2906
2907         priv = GET_PRIV (chat);
2908
2909         if (!priv->tp_chat) {
2910                 return;
2911         }
2912
2913         chat_composing_remove_timeout (chat);
2914         g_object_unref (priv->tp_chat);
2915         priv->tp_chat = NULL;
2916         g_object_notify (G_OBJECT (chat), "tp-chat");
2917
2918         empathy_chat_view_append_event (chat->view, _("Disconnected"));
2919         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
2920
2921         chat_update_contacts_visibility (chat, FALSE);
2922
2923         priv->unread_messages_when_offline = priv->unread_messages;
2924 }
2925
2926 static gboolean
2927 update_misspelled_words (gpointer data)
2928 {
2929         EmpathyChat *chat = EMPATHY_CHAT (data);
2930         EmpathyChatPriv *priv = GET_PRIV (chat);
2931         GtkTextBuffer *buffer;
2932         GtkTextIter iter;
2933         gint length;
2934
2935         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2936
2937         gtk_text_buffer_get_end_iter (buffer, &iter);
2938         length = gtk_text_iter_get_offset (&iter);
2939         chat_input_text_buffer_insert_text_cb (buffer, &iter,
2940                                                NULL, length, chat);
2941
2942         priv->update_misspelled_words_id = 0;
2943
2944         return FALSE;
2945 }
2946
2947 static void
2948 conf_spell_checking_cb (GSettings *gsettings_chat,
2949                         const gchar *key,
2950                         gpointer user_data)
2951 {
2952         EmpathyChat *chat = EMPATHY_CHAT (user_data);
2953         EmpathyChatPriv *priv = GET_PRIV (chat);
2954         gboolean spell_checker;
2955         GtkTextBuffer *buffer;
2956
2957         if (strcmp (key, EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED) != 0)
2958                 return;
2959
2960         spell_checker = g_settings_get_boolean (gsettings_chat,
2961                         EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED);
2962
2963         if (!empathy_spell_supported ()) {
2964                 spell_checker = FALSE;
2965         }
2966
2967         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
2968
2969         if (spell_checker == priv->spell_checking_enabled) {
2970                 if (spell_checker) {
2971                         /* Possibly changed dictionaries,
2972                          * update misspelled words. Need to do so in idle
2973                          * so the spell checker is updated. */
2974                         priv->update_misspelled_words_id =
2975                                 g_idle_add (update_misspelled_words, chat);
2976                 }
2977
2978                 return;
2979         }
2980
2981         if (spell_checker) {
2982                 GtkTextIter iter;
2983
2984                 priv->notify_cursor_position_id = tp_g_signal_connect_object  (
2985                                 buffer, "notify::cursor-position",
2986                                 G_CALLBACK (chat_input_text_buffer_notify_cursor_position_cb),
2987                                 chat, 0);
2988                 priv->insert_text_id = tp_g_signal_connect_object  (
2989                                 buffer, "insert-text",
2990                                 G_CALLBACK (chat_input_text_buffer_insert_text_cb),
2991                                 chat, G_CONNECT_AFTER);
2992                 priv->delete_range_id = tp_g_signal_connect_object  (
2993                                 buffer, "delete-range",
2994                                 G_CALLBACK (chat_input_text_buffer_delete_range_cb),
2995                                 chat, G_CONNECT_AFTER);
2996
2997                 gtk_text_buffer_create_tag (buffer, "misspelled",
2998                                             "underline", PANGO_UNDERLINE_ERROR,
2999                                             NULL);
3000
3001                 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
3002                                                   gtk_text_buffer_get_insert (buffer));
3003                 gtk_text_buffer_create_mark (buffer, "previous-cursor-position",
3004                                              &iter, TRUE);
3005
3006                 /* Mark misspelled words in the existing buffer.
3007                  * Need to do so in idle so the spell checker is updated. */
3008                 priv->update_misspelled_words_id =
3009                         g_idle_add (update_misspelled_words, chat);
3010         } else {
3011                 GtkTextTagTable *table;
3012                 GtkTextTag *tag;
3013
3014                 g_signal_handler_disconnect (buffer, priv->notify_cursor_position_id);
3015                 priv->notify_cursor_position_id = 0;
3016                 g_signal_handler_disconnect (buffer, priv->insert_text_id);
3017                 priv->insert_text_id = 0;
3018                 g_signal_handler_disconnect (buffer, priv->delete_range_id);
3019                 priv->delete_range_id = 0;
3020
3021                 table = gtk_text_buffer_get_tag_table (buffer);
3022                 tag = gtk_text_tag_table_lookup (table, "misspelled");
3023                 gtk_text_tag_table_remove (table, tag);
3024
3025                 gtk_text_buffer_delete_mark_by_name (buffer,
3026                                                      "previous-cursor-position");
3027         }
3028
3029         priv->spell_checking_enabled = spell_checker;
3030 }
3031
3032 static gboolean
3033 save_paned_pos_timeout (gpointer data)
3034 {
3035         EmpathyChat *self = data;
3036         gint hpaned_pos;
3037
3038         hpaned_pos = gtk_paned_get_position (GTK_PANED (self->priv->hpaned));
3039
3040         g_settings_set_int (self->priv->gsettings_ui,
3041                             EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS,
3042                             hpaned_pos);
3043
3044         return FALSE;
3045 }
3046
3047 static gboolean
3048 chat_hpaned_pos_changed_cb (GtkWidget* hpaned,
3049                 GParamSpec *spec,
3050                 gpointer user_data)
3051 {
3052         EmpathyChat *chat = EMPATHY_CHAT (user_data);
3053
3054         if (chat->priv->save_paned_pos_id != 0)
3055                 g_source_remove (chat->priv->save_paned_pos_id);
3056
3057         chat->priv->save_paned_pos_id = g_timeout_add_seconds (1,
3058                 save_paned_pos_timeout, chat);
3059
3060         return TRUE;
3061 }
3062
3063 static void
3064 chat_create_ui (EmpathyChat *chat)
3065 {
3066         EmpathyChatPriv *priv = GET_PRIV (chat);
3067         GtkBuilder      *gui;
3068         GList           *list = NULL;
3069         gchar           *filename;
3070         GtkTextBuffer   *buffer;
3071         EmpathyThemeManager *theme_mgr;
3072
3073         filename = empathy_file_lookup ("empathy-chat.ui",
3074                                         "libempathy-gtk");
3075         gui = empathy_builder_get_file (filename,
3076                                         "chat_widget", &priv->widget,
3077                                         "hpaned", &priv->hpaned,
3078                                         "vbox_left", &priv->vbox_left,
3079                                         "scrolled_window_chat", &priv->scrolled_window_chat,
3080                                         "scrolled_window_input", &priv->scrolled_window_input,
3081                                         "hbox_topic", &priv->hbox_topic,
3082                                         "expander_topic", &priv->expander_topic,
3083                                         "label_topic", &priv->label_topic,
3084                                         "scrolled_window_contacts", &priv->scrolled_window_contacts,
3085                                         "info_bar_vbox", &priv->info_bar_vbox,
3086                                         NULL);
3087
3088         empathy_builder_connect (gui, chat,
3089                 "expander_topic", "notify::expanded", chat_topic_expander_activate_cb,
3090                 "label_topic", "size-allocate", chat_topic_label_size_allocate_cb,
3091                 NULL);
3092
3093         g_free (filename);
3094
3095         /* Add message view. */
3096         theme_mgr = empathy_theme_manager_dup_singleton ();
3097         chat->view = empathy_theme_manager_create_view (theme_mgr);
3098         g_object_unref (theme_mgr);
3099         /* If this is a GtkTextView, it's set as a drag destination for text/plain
3100            and other types, even though it's non-editable and doesn't accept any
3101            drags.  This steals drag motion for anything inside the scrollbars,
3102            making drag destinations on chat windows far less useful.
3103          */
3104         gtk_drag_dest_unset (GTK_WIDGET (chat->view));
3105         g_signal_connect (chat->view, "focus_in_event",
3106                           G_CALLBACK (chat_text_view_focus_in_event_cb),
3107                           chat);
3108         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_chat),
3109                            GTK_WIDGET (chat->view));
3110         gtk_widget_show (GTK_WIDGET (chat->view));
3111
3112         /* Add input GtkTextView */
3113         chat->input_text_view = empathy_input_text_view_new ();
3114         g_signal_connect (chat->input_text_view, "notify::has-focus",
3115                           G_CALLBACK (chat_input_has_focus_notify_cb),
3116                           chat);
3117         g_signal_connect (chat->input_text_view, "key-press-event",
3118                           G_CALLBACK (chat_input_key_press_event_cb),
3119                           chat);
3120         g_signal_connect (chat->input_text_view, "realize",
3121                           G_CALLBACK (chat_input_realize_cb),
3122                           chat);
3123         g_signal_connect (chat->input_text_view, "button-press-event",
3124                           G_CALLBACK (chat_input_button_press_event_cb),
3125                           chat);
3126         g_signal_connect (chat->input_text_view, "populate-popup",
3127                           G_CALLBACK (chat_input_populate_popup_cb),
3128                           chat);
3129         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
3130         tp_g_signal_connect_object  (buffer, "changed",
3131                           G_CALLBACK (chat_input_text_buffer_changed_cb),
3132                           chat, 0);
3133         tp_g_signal_connect_object (priv->gsettings_chat,
3134                         "changed::" EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
3135                         G_CALLBACK (conf_spell_checking_cb), chat, 0);
3136         conf_spell_checking_cb (priv->gsettings_chat,
3137                                 EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED, chat);
3138         gtk_container_add (GTK_CONTAINER (priv->scrolled_window_input),
3139                            chat->input_text_view);
3140         gtk_widget_show (chat->input_text_view);
3141
3142         /* Add the (invisible) search bar */
3143         priv->search_bar = empathy_search_bar_new (chat->view);
3144         gtk_box_pack_start (GTK_BOX(priv->vbox_left),
3145                             priv->search_bar,
3146                             FALSE, FALSE, 0);
3147         gtk_box_reorder_child (GTK_BOX(priv->vbox_left), priv->search_bar, 1);
3148
3149         /* Initialy hide the topic, will be shown if not empty */
3150         gtk_widget_hide (priv->hbox_topic);
3151
3152         g_signal_connect (priv->hpaned, "notify::position",
3153                           G_CALLBACK (chat_hpaned_pos_changed_cb),
3154                           chat);
3155
3156         /* Set widget focus order */
3157         list = g_list_append (NULL, priv->search_bar);
3158         list = g_list_append (list, priv->scrolled_window_input);
3159         gtk_container_set_focus_chain (GTK_CONTAINER (priv->vbox_left), list);
3160         g_list_free (list);
3161
3162         list = g_list_append (NULL, priv->vbox_left);
3163         list = g_list_append (list, priv->scrolled_window_contacts);
3164         gtk_container_set_focus_chain (GTK_CONTAINER (priv->hpaned), list);
3165         g_list_free (list);
3166
3167         list = g_list_append (NULL, priv->hpaned);
3168         list = g_list_append (list, priv->hbox_topic);
3169         gtk_container_set_focus_chain (GTK_CONTAINER (priv->widget), list);
3170         g_list_free (list);
3171
3172         /* Add the main widget in the chat widget */
3173         gtk_box_pack_start (GTK_BOX (chat), priv->widget, TRUE, TRUE, 0);
3174         g_object_unref (gui);
3175 }
3176
3177 static void
3178 chat_finalize (GObject *object)
3179 {
3180         EmpathyChat     *chat;
3181         EmpathyChatPriv *priv;
3182
3183         chat = EMPATHY_CHAT (object);
3184         priv = GET_PRIV (chat);
3185
3186         DEBUG ("Finalized: %p", object);
3187
3188         if (priv->update_misspelled_words_id != 0)
3189                 g_source_remove (priv->update_misspelled_words_id);
3190
3191         if (priv->save_paned_pos_id != 0)
3192                 g_source_remove (priv->save_paned_pos_id);
3193
3194         if (priv->contacts_visible_id != 0)
3195                 g_source_remove (priv->contacts_visible_id);
3196
3197         g_object_unref (priv->gsettings_chat);
3198         g_object_unref (priv->gsettings_ui);
3199
3200         g_list_foreach (priv->input_history, (GFunc) chat_input_history_entry_free, NULL);
3201         g_list_free (priv->input_history);
3202
3203         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
3204         g_list_free (priv->compositors);
3205
3206         chat_composing_remove_timeout (chat);
3207
3208         g_object_unref (priv->account_manager);
3209         g_object_unref (priv->log_manager);
3210
3211         if (priv->tp_chat) {
3212                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3213                         chat_invalidated_cb, chat);
3214                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3215                         chat_message_received_cb, chat);
3216                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3217                         chat_message_acknowledged_cb, chat);
3218                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3219                         chat_send_error_cb, chat);
3220                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3221                         chat_state_changed_cb, chat);
3222                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3223                         chat_members_changed_cb, chat);
3224                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3225                         chat_remote_contact_changed_cb, chat);
3226                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3227                         chat_title_changed_cb, chat);
3228                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
3229                         chat_subject_changed_cb, chat);
3230                 empathy_tp_chat_leave (priv->tp_chat, "");
3231                 g_object_unref (priv->tp_chat);
3232         }
3233         if (priv->account) {
3234                 g_object_unref (priv->account);
3235         }
3236         if (priv->remote_contact) {
3237                 g_object_unref (priv->remote_contact);
3238         }
3239
3240         if (priv->block_events_timeout_id) {
3241                 g_source_remove (priv->block_events_timeout_id);
3242         }
3243
3244         g_free (priv->id);
3245         g_free (priv->name);
3246         g_free (priv->subject);
3247         g_completion_free (priv->completion);
3248
3249         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
3250 }
3251
3252 static void
3253 chat_constructed (GObject *object)
3254 {
3255         EmpathyChat *chat = EMPATHY_CHAT (object);
3256         EmpathyChatPriv *priv = GET_PRIV (chat);
3257
3258         if (priv->handle_type != TP_HANDLE_TYPE_ROOM) {
3259                 /* First display logs from the logger and then display pending messages */
3260                 chat_add_logs (chat);
3261         }
3262          else {
3263                 /* Just display pending messages for rooms */
3264                 priv->can_show_pending = TRUE;
3265                 show_pending_messages (chat);
3266         }
3267 }
3268
3269 static void
3270 empathy_chat_class_init (EmpathyChatClass *klass)
3271 {
3272         GObjectClass   *object_class = G_OBJECT_CLASS (klass);
3273
3274         object_class->finalize = chat_finalize;
3275         object_class->get_property = chat_get_property;
3276         object_class->set_property = chat_set_property;
3277         object_class->constructed = chat_constructed;
3278
3279         g_object_class_install_property (object_class,
3280                                          PROP_TP_CHAT,
3281                                          g_param_spec_object ("tp-chat",
3282                                                               "Empathy tp chat",
3283                                                               "The tp chat object",
3284                                                               EMPATHY_TYPE_TP_CHAT,
3285                                                               G_PARAM_CONSTRUCT |
3286                                                               G_PARAM_READWRITE |
3287                                                               G_PARAM_STATIC_STRINGS));
3288         g_object_class_install_property (object_class,
3289                                          PROP_ACCOUNT,
3290                                          g_param_spec_object ("account",
3291                                                               "Account of the chat",
3292                                                               "The account of the chat",
3293                                                               TP_TYPE_ACCOUNT,
3294                                                               G_PARAM_READABLE |
3295                                                               G_PARAM_STATIC_STRINGS));
3296         g_object_class_install_property (object_class,
3297                                          PROP_ID,
3298                                          g_param_spec_string ("id",
3299                                                               "Chat's id",
3300                                                               "The id of the chat",
3301                                                               NULL,
3302                                                               G_PARAM_READABLE |
3303                                                               G_PARAM_STATIC_STRINGS));
3304         g_object_class_install_property (object_class,
3305                                          PROP_NAME,
3306                                          g_param_spec_string ("name",
3307                                                               "Chat's name",
3308                                                               "The name of the chat",
3309                                                               NULL,
3310                                                               G_PARAM_READABLE |
3311                                                               G_PARAM_STATIC_STRINGS));
3312         g_object_class_install_property (object_class,
3313                                          PROP_SUBJECT,
3314                                          g_param_spec_string ("subject",
3315                                                               "Chat's subject",
3316                                                               "The subject or topic of the chat",
3317                                                               NULL,
3318                                                               G_PARAM_READABLE |
3319                                                               G_PARAM_STATIC_STRINGS));
3320         g_object_class_install_property (object_class,
3321                                          PROP_REMOTE_CONTACT,
3322                                          g_param_spec_object ("remote-contact",
3323                                                               "The remote contact",
3324                                                               "The remote contact is any",
3325                                                               EMPATHY_TYPE_CONTACT,
3326                                                               G_PARAM_READABLE |
3327                                                               G_PARAM_STATIC_STRINGS));
3328         g_object_class_install_property (object_class,
3329                                          PROP_SHOW_CONTACTS,
3330                                          g_param_spec_boolean ("show-contacts",
3331                                                                "Contacts' visibility",
3332                                                                "The visibility of the contacts' list",
3333                                                                TRUE,
3334                                                                G_PARAM_READWRITE |
3335                                                                G_PARAM_STATIC_STRINGS));
3336
3337         g_object_class_install_property (object_class,
3338                                          PROP_SMS_CHANNEL,
3339                                          g_param_spec_boolean ("sms-channel",
3340                                                                "SMS Channel",
3341                                                                "TRUE if this channel is for sending SMSes",
3342                                                                FALSE,
3343                                                                G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3344
3345         g_object_class_install_property (object_class,
3346                                          PROP_N_MESSAGES_SENDING,
3347                                          g_param_spec_uint ("n-messages-sending",
3348                                                             "Num Messages Sending",
3349                                                             "The number of messages being sent",
3350                                                             0, G_MAXUINT, 0,
3351                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3352
3353         g_object_class_install_property (object_class,
3354                                          PROP_NB_UNREAD_MESSAGES,
3355                                          g_param_spec_uint ("nb-unread-messages",
3356                                                             "Num Unread Messages",
3357                                                             "The number of unread messages",
3358                                                             0, G_MAXUINT, 0,
3359                                                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
3360
3361         signals[COMPOSING] =
3362                 g_signal_new ("composing",
3363                               G_OBJECT_CLASS_TYPE (object_class),
3364                               G_SIGNAL_RUN_LAST,
3365                               0,
3366                               NULL, NULL,
3367                               g_cclosure_marshal_generic,
3368                               G_TYPE_NONE,
3369                               1, G_TYPE_BOOLEAN);
3370
3371         /**
3372          * EmpathyChat::new-message:
3373          * @self: the #EmpathyChat
3374          * @message: the new message
3375          * @pending: whether the message was in the pending queue when @self
3376          *  was created
3377          * @should_highlight: %TRUE if the message mentions the local user
3378          */
3379         signals[NEW_MESSAGE] =
3380                 g_signal_new ("new-message",
3381                               G_OBJECT_CLASS_TYPE (object_class),
3382                               G_SIGNAL_RUN_LAST,
3383                               0,
3384                               NULL, NULL,
3385                               g_cclosure_marshal_generic,
3386                               G_TYPE_NONE,
3387                               3, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
3388
3389         signals[PART_COMMAND_ENTERED] =
3390                         g_signal_new ("part-command-entered",
3391                                   G_OBJECT_CLASS_TYPE (object_class),
3392                                   G_SIGNAL_RUN_LAST,
3393                                   0,
3394                                   NULL, NULL,
3395                                   g_cclosure_marshal_generic,
3396                                   G_TYPE_NONE,
3397                                   1, G_TYPE_STRV);
3398
3399         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
3400 }
3401
3402 static gboolean
3403 chat_block_events_timeout_cb (gpointer data)
3404 {
3405         EmpathyChatPriv *priv = GET_PRIV (data);
3406
3407         priv->block_events_timeout_id = 0;
3408
3409         return FALSE;
3410 }
3411
3412 static void
3413 account_manager_prepared_cb (GObject *source_object,
3414                              GAsyncResult *result,
3415                              gpointer user_data)
3416 {
3417         GList *accounts, *l;
3418         TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
3419         EmpathyChat *chat = user_data;
3420         GError *error = NULL;
3421
3422         if (!tp_proxy_prepare_finish (account_manager, result, &error)) {
3423                 DEBUG ("Failed to prepare the account manager: %s", error->message);
3424                 g_error_free (error);
3425                 return;
3426         }
3427
3428         accounts = tp_account_manager_get_valid_accounts (account_manager);
3429
3430         for (l = accounts; l != NULL; l = l->next) {
3431                 TpAccount *account = l->data;
3432                 tp_g_signal_connect_object (account, "status-changed",
3433                                              G_CALLBACK (chat_new_connection_cb),
3434                                              chat, 0);
3435         }
3436
3437         g_list_free (accounts);
3438 }
3439
3440 static void
3441 empathy_chat_init (EmpathyChat *chat)
3442 {
3443         EmpathyChatPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (chat,
3444                 EMPATHY_TYPE_CHAT, EmpathyChatPriv);
3445
3446         chat->priv = priv;
3447         priv->log_manager = tpl_log_manager_dup_singleton ();
3448         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
3449         priv->gsettings_ui = g_settings_new (EMPATHY_PREFS_UI_SCHEMA);
3450
3451         priv->contacts_width = g_settings_get_int (priv->gsettings_ui,
3452                 EMPATHY_PREFS_UI_CHAT_WINDOW_PANED_POS);
3453         priv->input_history = NULL;
3454         priv->input_history_current = NULL;
3455         priv->account_manager = tp_account_manager_dup ();
3456
3457         tp_proxy_prepare_async (priv->account_manager, NULL,
3458                                           account_manager_prepared_cb, chat);
3459
3460         priv->show_contacts = g_settings_get_boolean (priv->gsettings_chat,
3461                         EMPATHY_PREFS_CHAT_SHOW_CONTACTS_IN_ROOMS);
3462
3463         /* Block events for some time to avoid having "has come online" or
3464          * "joined" messages. */
3465         priv->block_events_timeout_id =
3466                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
3467
3468         /* Add nick name completion */
3469         priv->completion = g_completion_new ((GCompletionFunc) empathy_contact_get_alias);
3470         g_completion_set_compare (priv->completion, chat_contacts_completion_func);
3471
3472         chat_create_ui (chat);
3473 }
3474
3475 EmpathyChat *
3476 empathy_chat_new (EmpathyTpChat *tp_chat)
3477 {
3478         return g_object_new (EMPATHY_TYPE_CHAT, "tp-chat", tp_chat, NULL);
3479 }
3480
3481 EmpathyTpChat *
3482 empathy_chat_get_tp_chat (EmpathyChat *chat)
3483 {
3484         EmpathyChatPriv *priv = GET_PRIV (chat);
3485
3486         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
3487
3488         return priv->tp_chat;
3489 }
3490
3491 typedef struct
3492 {
3493         EmpathyChat *self;
3494         GtkWidget *info_bar;
3495         gulong response_id;
3496         GtkWidget *button;
3497         GtkWidget *label;
3498         GtkWidget *entry;
3499         GtkWidget *spinner;
3500         gchar *password;
3501 } PasswordData;
3502
3503 static void
3504 passwd_remember_button_cb (GtkButton *button,
3505                           PasswordData *data)
3506 {
3507         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3508 }
3509
3510 static void
3511 passwd_not_now_button_cb (GtkButton *button,
3512                           PasswordData *data)
3513 {
3514         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_NO);
3515 }
3516
3517 static void
3518 remember_password_infobar_response_cb (GtkWidget *info_bar,
3519                                        gint response_id,
3520                                        PasswordData *data)
3521 {
3522         EmpathyChatPriv *priv = GET_PRIV (data->self);
3523
3524         if (response_id == GTK_RESPONSE_OK) {
3525                 DEBUG ("Saving room password");
3526                 empathy_keyring_set_room_password_async (priv->account,
3527                                                          empathy_tp_chat_get_id (priv->tp_chat),
3528                                                          data->password,
3529                                                          NULL, NULL);
3530         }
3531
3532         gtk_widget_destroy (info_bar);
3533         g_free (data->password);
3534         g_slice_free (PasswordData, data);
3535 }
3536
3537 static void
3538 chat_prompt_to_save_password (EmpathyChat *self,
3539                               PasswordData *data)
3540 {
3541         GtkWidget *content_area;
3542         GtkWidget *hbox;
3543         GtkWidget *image;
3544         GtkWidget *label;
3545         GtkWidget *alig;
3546         GtkWidget *button;
3547
3548         /* save the password in case it needs to be saved */
3549         data->password = g_strdup (gtk_entry_get_text (GTK_ENTRY (data->entry)));
3550
3551         /* Remove all previous widgets */
3552         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (data->info_bar));
3553         gtk_container_forall (GTK_CONTAINER (content_area),
3554                               (GtkCallback) gtk_widget_destroy, NULL);
3555         data->button = NULL;
3556         data->label = NULL;
3557         data->entry = NULL;
3558         data->spinner = NULL;
3559
3560         gtk_info_bar_set_message_type (GTK_INFO_BAR (data->info_bar),
3561                                        GTK_MESSAGE_QUESTION);
3562
3563         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3564         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3565
3566         /* Add image */
3567         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3568                                           GTK_ICON_SIZE_DIALOG);
3569         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3570
3571         /* Add message */
3572         label = gtk_label_new (_("Would you like to store this password?"));
3573         gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
3574
3575         /* Add 'Remember' button */
3576         alig = gtk_alignment_new (0, 0.5, 1, 0);
3577
3578         button = gtk_button_new_with_label (_("Remember"));
3579         gtk_container_add (GTK_CONTAINER (alig), button);
3580         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3581
3582         g_signal_connect (button, "clicked", G_CALLBACK (passwd_remember_button_cb),
3583                           data);
3584
3585         /* Add 'Not now' button */
3586         alig = gtk_alignment_new (0, 0.5, 1, 0);
3587
3588         button = gtk_button_new_with_label (_("Not now"));
3589         gtk_container_add (GTK_CONTAINER (alig), button);
3590         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3591
3592         g_signal_connect (button, "clicked", G_CALLBACK (passwd_not_now_button_cb),
3593                           data);
3594
3595         /* go! */
3596         g_signal_handler_disconnect (data->info_bar, data->response_id);
3597         g_signal_connect (data->info_bar, "response",
3598                           G_CALLBACK (remember_password_infobar_response_cb), data);
3599
3600         gtk_widget_show_all (data->info_bar);
3601 }
3602
3603 static void
3604 provide_password_cb (GObject *tp_chat,
3605                      GAsyncResult *res,
3606                      gpointer user_data)
3607 {
3608         PasswordData *data = user_data;
3609         EmpathyChat *self = data->self;
3610         EmpathyChatPriv *priv = GET_PRIV (self);
3611         GError *error = NULL;
3612
3613         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3614                                                       &error)) {
3615                 DEBUG ("error: %s", error->message);
3616                 /* FIXME: what should we do if that's another error? Close the channel?
3617                  * Display the raw D-Bus error to the user isn't very useful */
3618                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3619                         /* entry */
3620                         gtk_entry_set_text (GTK_ENTRY (data->entry), "");
3621                         gtk_widget_set_sensitive (data->entry, TRUE);
3622                         gtk_widget_grab_focus (data->entry);
3623
3624                         /* info bar */
3625                         gtk_info_bar_set_message_type (
3626                             GTK_INFO_BAR (data->info_bar),
3627                             GTK_MESSAGE_ERROR);
3628
3629                         /* button */
3630                         gtk_widget_set_sensitive (data->button, TRUE);
3631                         gtk_button_set_label (GTK_BUTTON (data->button),
3632                             _("Retry"));
3633
3634                         /* label */
3635                         gtk_label_set_text (GTK_LABEL (data->label),
3636                             _("Wrong password; please try again:"));
3637
3638                         /* spinner */
3639                         gtk_spinner_stop (GTK_SPINNER (data->spinner));
3640                         gtk_widget_hide (data->spinner);
3641                 }
3642                 g_error_free (error);
3643                 return;
3644         }
3645
3646         if (empathy_keyring_is_available ()) {
3647                 /* ask whether they want to save the password */
3648                 chat_prompt_to_save_password (self, data);
3649         } else {
3650                 /* Get rid of the password info bar finally */
3651                 gtk_widget_destroy (data->info_bar);
3652                 g_slice_free (PasswordData, data);
3653         }
3654
3655         /* Room joined */
3656         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3657         gtk_widget_set_sensitive (self->input_text_view, TRUE);
3658         gtk_widget_grab_focus (self->input_text_view);
3659 }
3660
3661 static void
3662 password_infobar_response_cb (GtkWidget *info_bar,
3663                               gint response_id,
3664                               PasswordData *data)
3665 {
3666         EmpathyChatPriv *priv = GET_PRIV (data->self);
3667         const gchar *password;
3668
3669         if (response_id != GTK_RESPONSE_OK) {
3670                 gtk_widget_destroy (info_bar);
3671                 g_slice_free (PasswordData, data);
3672                 return;
3673         }
3674
3675         password = gtk_entry_get_text (GTK_ENTRY (data->entry));
3676
3677         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3678                                                 provide_password_cb, data);
3679
3680         gtk_widget_set_sensitive (data->button, FALSE);
3681         gtk_widget_set_sensitive (data->entry, FALSE);
3682
3683         gtk_spinner_start (GTK_SPINNER (data->spinner));
3684         gtk_widget_show (data->spinner);
3685 }
3686
3687 static void
3688 password_entry_activate_cb (GtkWidget *entry,
3689                           PasswordData *data)
3690 {
3691         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3692 }
3693
3694 static void
3695 passwd_join_button_cb (GtkButton *button,
3696                           PasswordData *data)
3697 {
3698         gtk_info_bar_response (GTK_INFO_BAR (data->info_bar), GTK_RESPONSE_OK);
3699 }
3700
3701 static void
3702 clear_icon_released_cb (GtkEntry *entry,
3703                         GtkEntryIconPosition icon_pos,
3704                         GdkEvent *event,
3705                         PasswordData *data)
3706 {
3707         gtk_entry_set_text (entry, "");
3708 }
3709
3710 static void
3711 password_entry_changed_cb (GtkEditable *entry,
3712                            PasswordData *data)
3713 {
3714         const gchar *str;
3715
3716         str = gtk_entry_get_text (GTK_ENTRY (entry));
3717
3718         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3719             GTK_ENTRY_ICON_SECONDARY, !EMP_STR_EMPTY (str));
3720 }
3721
3722 static void
3723 infobar_chat_invalidated_cb (TpProxy       *proxy,
3724                            guint          domain,
3725                            gint           code,
3726                            gchar         *message,
3727                            gpointer       password_infobar)
3728 {
3729         /* Destroy the password infobar whenever a channel is invalidated
3730          * so we don't have multiple infobars when the MUC is rejoined */
3731         gtk_widget_destroy (GTK_WIDGET (password_infobar));
3732 }
3733
3734 static void
3735 display_password_info_bar (EmpathyChat *self)
3736 {
3737         EmpathyChatPriv *priv = GET_PRIV (self);
3738         GtkWidget *info_bar;
3739         GtkWidget *content_area;
3740         GtkWidget *hbox;
3741         GtkWidget *image;
3742         GtkWidget *label;
3743         GtkWidget *entry;
3744         GtkWidget *alig;
3745         GtkWidget *button;
3746         GtkWidget *spinner;
3747         PasswordData *data;
3748
3749         data = g_slice_new0 (PasswordData);
3750
3751         info_bar = gtk_info_bar_new ();
3752         gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
3753             GTK_MESSAGE_QUESTION);
3754
3755         content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
3756
3757         hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
3758         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
3759
3760         /* Add image */
3761         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
3762                                           GTK_ICON_SIZE_DIALOG);
3763         gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
3764
3765         /* Add message */
3766         label = gtk_label_new (_("This room is protected by a password:"));
3767         gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
3768
3769         /* Add password entry */
3770         entry = gtk_entry_new ();
3771         gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
3772         gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 0);
3773
3774         gtk_entry_set_icon_from_stock (GTK_ENTRY (entry),
3775                                        GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
3776         gtk_entry_set_icon_sensitive (GTK_ENTRY (entry),
3777                                       GTK_ENTRY_ICON_SECONDARY, FALSE);
3778
3779         g_signal_connect (entry, "icon-release",
3780                           G_CALLBACK (clear_icon_released_cb), data);
3781         g_signal_connect (entry, "changed",
3782                           G_CALLBACK (password_entry_changed_cb), data);
3783
3784         g_signal_connect (entry, "activate",
3785                           G_CALLBACK (password_entry_activate_cb), data);
3786
3787         /* Focus the password entry once it's realized */
3788         g_signal_connect (entry, "realize", G_CALLBACK (gtk_widget_grab_focus), NULL);
3789
3790         /* Add 'Join' button */
3791         alig = gtk_alignment_new (0, 0.5, 1, 0);
3792
3793         button = gtk_button_new_with_label (_("Join"));
3794         gtk_container_add (GTK_CONTAINER (alig), button);
3795         gtk_box_pack_start (GTK_BOX (hbox), alig, FALSE, FALSE, 0);
3796
3797         g_signal_connect (button, "clicked", G_CALLBACK (passwd_join_button_cb),
3798                           data);
3799
3800         /* Add spinner */
3801         spinner = gtk_spinner_new ();
3802         gtk_box_pack_end (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);
3803
3804         /* Save some data for messing around with later */
3805         data->self = self;
3806         data->info_bar = info_bar;
3807         data->button = button;
3808         data->label = label;
3809         data->entry = entry;
3810         data->spinner = spinner;
3811
3812         gtk_box_pack_start (GTK_BOX (priv->info_bar_vbox), info_bar,
3813                             TRUE, TRUE, 3);
3814         gtk_widget_show_all (hbox);
3815
3816         tp_g_signal_connect_object (priv->tp_chat,
3817                                   "invalidated", G_CALLBACK (infobar_chat_invalidated_cb),
3818                                   info_bar, 0);
3819
3820         data->response_id = g_signal_connect (info_bar, "response",
3821                                               G_CALLBACK (password_infobar_response_cb), data);
3822
3823         gtk_widget_show_all (info_bar);
3824         /* ... but hide the spinner */
3825         gtk_widget_hide (spinner);
3826
3827         /* prevent the user from typing anything */
3828         gtk_widget_set_sensitive (self->input_text_view, FALSE);
3829 }
3830
3831 static void
3832 provide_saved_password_cb (GObject *tp_chat,
3833                            GAsyncResult *res,
3834                            gpointer user_data)
3835 {
3836         EmpathyChat *self = user_data;
3837         EmpathyChatPriv *priv = GET_PRIV (self);
3838         GError *error = NULL;
3839
3840         if (!tp_channel_provide_password_finish (TP_CHANNEL (tp_chat), res,
3841                                                       &error)) {
3842                 DEBUG ("error: %s", error->message);
3843                 /* FIXME: what should we do if that's another error? Close the channel?
3844                  * Display the raw D-Bus error to the user isn't very useful */
3845                 if (g_error_matches (error, TP_ERRORS, TP_ERROR_AUTHENTICATION_FAILED)) {
3846                         display_password_info_bar (self);
3847                         gtk_widget_set_sensitive (priv->hpaned, FALSE);
3848                 }
3849                 g_error_free (error);
3850                 return;
3851         }
3852
3853         /* Room joined */
3854         gtk_widget_set_sensitive (priv->hpaned, TRUE);
3855         gtk_widget_grab_focus (self->input_text_view);
3856 }
3857
3858 static void
3859 chat_room_got_password_cb (GObject *source,
3860                            GAsyncResult *result,
3861                            gpointer user_data)
3862 {
3863         EmpathyChat *self = user_data;
3864         EmpathyChatPriv *priv = GET_PRIV (self);
3865         const gchar *password;
3866         GError *error = NULL;
3867
3868         password = empathy_keyring_get_room_password_finish (priv->account,
3869             result, &error);
3870
3871         if (error != NULL) {
3872                 DEBUG ("Couldn't get room password: %s\n", error->message);
3873                 g_clear_error (&error);
3874
3875                 display_password_info_bar (self);
3876                 gtk_widget_set_sensitive (priv->hpaned, FALSE);
3877                 return;
3878         }
3879
3880         tp_channel_provide_password_async (TP_CHANNEL (priv->tp_chat), password,
3881                                                 provide_saved_password_cb, self);
3882 }
3883
3884 static void
3885 chat_password_needed_changed_cb (EmpathyChat *self)
3886 {
3887         EmpathyChatPriv *priv = GET_PRIV (self);
3888
3889         if (tp_channel_password_needed (TP_CHANNEL (priv->tp_chat))) {
3890                 empathy_keyring_get_room_password_async (priv->account,
3891                                                          empathy_tp_chat_get_id (priv->tp_chat),
3892                                                          chat_room_got_password_cb, self);
3893         }
3894 }
3895
3896 static void
3897 chat_sms_channel_changed_cb (EmpathyChat *self)
3898 {
3899         EmpathyChatPriv *priv = GET_PRIV (self);
3900
3901         priv->sms_channel = tp_text_channel_is_sms_channel (
3902                 (TpTextChannel *) priv->tp_chat);
3903         g_object_notify (G_OBJECT (self), "sms-channel");
3904 }
3905
3906 static void
3907 chat_n_messages_sending_changed_cb (EmpathyChat *self)
3908 {
3909         g_object_notify (G_OBJECT (self), "n-messages-sending");
3910 }
3911
3912 void
3913 empathy_chat_set_tp_chat (EmpathyChat   *chat,
3914                           EmpathyTpChat *tp_chat)
3915 {
3916         EmpathyChatPriv *priv = GET_PRIV (chat);
3917
3918         g_return_if_fail (EMPATHY_IS_CHAT (chat));
3919         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
3920
3921         if (priv->tp_chat) {
3922                 return;
3923         }
3924
3925         if (priv->account) {
3926                 g_object_unref (priv->account);
3927         }
3928
3929         priv->tp_chat = g_object_ref (tp_chat);
3930         priv->account = g_object_ref (empathy_tp_chat_get_account (priv->tp_chat));
3931
3932         g_signal_connect (tp_chat, "invalidated",
3933                           G_CALLBACK (chat_invalidated_cb),
3934                           chat);
3935         g_signal_connect (tp_chat, "message-received-empathy",
3936                           G_CALLBACK (chat_message_received_cb),
3937                           chat);
3938         g_signal_connect (tp_chat, "message_acknowledged",
3939                           G_CALLBACK (chat_message_acknowledged_cb),
3940                           chat);
3941         g_signal_connect (tp_chat, "send-error",
3942                           G_CALLBACK (chat_send_error_cb),
3943                           chat);
3944         g_signal_connect (tp_chat, "chat-state-changed-empathy",
3945                           G_CALLBACK (chat_state_changed_cb),
3946                           chat);
3947         g_signal_connect (tp_chat, "members-changed",
3948                           G_CALLBACK (chat_members_changed_cb),
3949                           chat);
3950         g_signal_connect (tp_chat, "member-renamed",
3951                           G_CALLBACK (chat_member_renamed_cb),
3952                           chat);
3953         g_signal_connect_swapped (tp_chat, "notify::remote-contact",
3954                                   G_CALLBACK (chat_remote_contact_changed_cb),
3955                                   chat);
3956         g_signal_connect_swapped (tp_chat, "notify::password-needed",
3957                                   G_CALLBACK (chat_password_needed_changed_cb),
3958                                   chat);
3959         g_signal_connect_swapped (tp_chat, "notify::is-sms-channel",
3960                                   G_CALLBACK (chat_sms_channel_changed_cb),
3961                                   chat);
3962         g_signal_connect_swapped (tp_chat, "notify::n-messages-sending",
3963                                   G_CALLBACK (chat_n_messages_sending_changed_cb),
3964                                   chat);
3965         g_signal_connect_swapped (tp_chat, "notify::title",
3966                                   G_CALLBACK (chat_title_changed_cb),
3967                                   chat);
3968         g_signal_connect_swapped (tp_chat, "notify::subject",
3969                                   G_CALLBACK (chat_subject_changed_cb),
3970                                   chat);
3971
3972         /* Get initial value of properties */
3973         chat_sms_channel_changed_cb (chat);
3974         chat_remote_contact_changed_cb (chat);
3975         chat_title_changed_cb (chat);
3976         chat_subject_changed_cb (chat);
3977
3978         if (chat->input_text_view) {
3979                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
3980                 if (priv->block_events_timeout_id == 0) {
3981                         empathy_chat_view_append_event (chat->view, _("Connected"));
3982                 }
3983         }
3984
3985         g_object_notify (G_OBJECT (chat), "tp-chat");
3986         g_object_notify (G_OBJECT (chat), "id");
3987         g_object_notify (G_OBJECT (chat), "account");
3988
3989         /* This is a noop when tp-chat is set at object construction time and causes
3990          * the pending messages to be show when it's set on the object after it has
3991          * been created */
3992         show_pending_messages (chat);
3993
3994         /* check if a password is needed */
3995         chat_password_needed_changed_cb (chat);
3996 }
3997
3998 TpAccount *
3999 empathy_chat_get_account (EmpathyChat *chat)
4000 {
4001         EmpathyChatPriv *priv = GET_PRIV (chat);
4002
4003         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4004
4005         return priv->account;
4006 }
4007
4008 const gchar *
4009 empathy_chat_get_id (EmpathyChat *chat)
4010 {
4011         EmpathyChatPriv *priv = GET_PRIV (chat);
4012
4013         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4014
4015         return priv->id;
4016 }
4017
4018 gchar *
4019 empathy_chat_dup_name (EmpathyChat *chat)
4020 {
4021         EmpathyChatPriv *priv = GET_PRIV (chat);
4022         const gchar *ret;
4023
4024         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4025
4026         ret = priv->name;
4027
4028         if (!ret && priv->remote_contact) {
4029                 ret = empathy_contact_get_alias (priv->remote_contact);
4030         }
4031
4032         if (!ret)
4033                 ret = priv->id;
4034
4035         if (!ret)
4036                 ret = _("Conversation");
4037
4038         if (priv->sms_channel)
4039                 /* Translators: this string is a something like
4040                  * "Escher Cat (SMS)" */
4041                 return g_strdup_printf (_("%s (SMS)"), ret);
4042         else
4043                 return g_strdup (ret);
4044 }
4045
4046 const gchar *
4047 empathy_chat_get_subject (EmpathyChat *chat)
4048 {
4049         EmpathyChatPriv *priv = GET_PRIV (chat);
4050
4051         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4052
4053         return priv->subject;
4054 }
4055
4056 EmpathyContact *
4057 empathy_chat_get_remote_contact (EmpathyChat *chat)
4058 {
4059         EmpathyChatPriv *priv = GET_PRIV (chat);
4060
4061         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4062
4063         return priv->remote_contact;
4064 }
4065
4066 GtkWidget *
4067 empathy_chat_get_contact_menu (EmpathyChat *chat)
4068 {
4069         EmpathyChatPriv *priv = GET_PRIV (chat);
4070         GtkWidget       *menu = NULL;
4071         FolksIndividual *individual;
4072         TpContact *contact;
4073
4074         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
4075
4076         if (priv->remote_contact == NULL)
4077                 return NULL;
4078
4079         contact = empathy_contact_get_tp_contact (priv->remote_contact);
4080         if (contact == NULL)
4081                 return NULL;
4082
4083         individual = empathy_create_individual_from_tp_contact (contact);
4084         if (individual == NULL)
4085                 return NULL;
4086
4087         menu = empathy_individual_menu_new (individual,
4088                                          EMPATHY_INDIVIDUAL_FEATURE_CALL |
4089                                          EMPATHY_INDIVIDUAL_FEATURE_LOG |
4090                                          EMPATHY_INDIVIDUAL_FEATURE_INFO |
4091                                          EMPATHY_INDIVIDUAL_FEATURE_BLOCK, NULL);
4092
4093         g_object_unref (individual);
4094
4095         return menu;
4096 }
4097
4098 void
4099 empathy_chat_clear (EmpathyChat *chat)
4100 {
4101         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4102
4103         empathy_chat_view_clear (chat->view);
4104 }
4105
4106 void
4107 empathy_chat_scroll_down (EmpathyChat *chat)
4108 {
4109         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4110
4111         empathy_chat_view_scroll_down (chat->view);
4112 }
4113
4114 void
4115 empathy_chat_cut (EmpathyChat *chat)
4116 {
4117         GtkTextBuffer *buffer;
4118
4119         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4120
4121         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4122         if (gtk_text_buffer_get_has_selection (buffer)) {
4123                 GtkClipboard *clipboard;
4124
4125                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4126
4127                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
4128         }
4129 }
4130
4131 void
4132 empathy_chat_copy (EmpathyChat *chat)
4133 {
4134         GtkTextBuffer *buffer;
4135
4136         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4137
4138         if (empathy_chat_view_get_has_selection (chat->view)) {
4139                 empathy_chat_view_copy_clipboard (chat->view);
4140                 return;
4141         }
4142
4143         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4144         if (gtk_text_buffer_get_has_selection (buffer)) {
4145                 GtkClipboard *clipboard;
4146
4147                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4148
4149                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
4150         }
4151         else {
4152                 gint start_offset;
4153                 gint end_offset;
4154                 EmpathyChatPriv *priv = GET_PRIV (chat);
4155
4156                 if (gtk_label_get_selection_bounds (GTK_LABEL (priv->label_topic),
4157                                                                &start_offset,
4158                                                                &end_offset)) {
4159                         gchar *start;
4160                         gchar *end;
4161                         gchar *selection;
4162                         const gchar *topic;
4163                         GtkClipboard *clipboard;
4164
4165                         topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));
4166                         start = g_utf8_offset_to_pointer (topic, start_offset);
4167                         end = g_utf8_offset_to_pointer (topic, end_offset);
4168                         selection = g_strndup (start, end - start);
4169
4170                         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4171                         gtk_clipboard_set_text (clipboard, selection, -1);
4172
4173                         g_free (selection);
4174                 }
4175         }
4176 }
4177
4178 void
4179 empathy_chat_paste (EmpathyChat *chat)
4180 {
4181         GtkTextBuffer *buffer;
4182         GtkClipboard  *clipboard;
4183         EmpathyChatPriv *priv;
4184
4185         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4186
4187         priv = GET_PRIV (chat);
4188
4189         if (gtk_widget_get_visible (priv->search_bar)) {
4190                 empathy_search_bar_paste_clipboard (EMPATHY_SEARCH_BAR (priv->search_bar));
4191                 return;
4192         }
4193
4194         if (priv->tp_chat == NULL ||
4195             !gtk_widget_is_sensitive (chat->input_text_view))
4196                 return;
4197
4198         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4199         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
4200
4201         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
4202 }
4203
4204 void
4205 empathy_chat_find (EmpathyChat *chat)
4206 {
4207         EmpathyChatPriv *priv;
4208
4209         g_return_if_fail (EMPATHY_IS_CHAT (chat));
4210
4211         priv = GET_PRIV (chat);
4212
4213         empathy_search_bar_show (EMPATHY_SEARCH_BAR (priv->search_bar));
4214 }
4215
4216 void
4217 empathy_chat_correct_word (EmpathyChat  *chat,
4218                           GtkTextIter *start,
4219                           GtkTextIter *end,
4220                           const gchar *new_word)
4221 {
4222         GtkTextBuffer *buffer;
4223
4224         g_return_if_fail (chat != NULL);
4225         g_return_if_fail (new_word != NULL);
4226
4227         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
4228
4229         gtk_text_buffer_delete (buffer, start, end);
4230         gtk_text_buffer_insert (buffer, start,
4231                                 new_word,
4232                                 -1);
4233 }
4234
4235 gboolean
4236 empathy_chat_is_room (EmpathyChat *chat)
4237 {
4238         EmpathyChatPriv *priv = GET_PRIV (chat);
4239
4240         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
4241
4242         return (priv->handle_type == TP_HANDLE_TYPE_ROOM);
4243 }
4244
4245 guint
4246 empathy_chat_get_nb_unread_messages (EmpathyChat *self)
4247 {
4248         EmpathyChatPriv *priv = GET_PRIV (self);
4249
4250         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4251
4252         return priv->unread_messages;
4253 }
4254
4255 /* called when the messages have been read by user */
4256 void
4257 empathy_chat_messages_read (EmpathyChat *self)
4258 {
4259         EmpathyChatPriv *priv = GET_PRIV (self);
4260
4261         g_return_if_fail (EMPATHY_IS_CHAT (self));
4262
4263         /* FIXME: See Bug#610994, See comments about it in EmpathyChatPriv
4264          * definition. If we are still retrieving the backlogs, do not ACK */
4265         if (priv->retrieving_backlogs)
4266                 return;
4267
4268         if (priv->tp_chat != NULL) {
4269                 tp_text_channel_ack_all_pending_messages_async (
4270                         TP_TEXT_CHANNEL (priv->tp_chat), NULL, NULL);
4271         }
4272
4273         if (priv->unread_messages_when_offline > 0) {
4274                 /* We can't ack those as the connection has gone away so just consider
4275                 * them as read. */
4276                 priv->unread_messages -= priv->unread_messages_when_offline;
4277                 g_object_notify (G_OBJECT (self), "nb-unread-messages");
4278                 priv->unread_messages_when_offline = 0;
4279         }
4280 }
4281
4282 /* Return TRUE if on of the contacts in this chat is composing */
4283 gboolean
4284 empathy_chat_is_composing (EmpathyChat *chat)
4285 {
4286   return chat->priv->compositors != NULL;
4287 }
4288
4289 gboolean
4290 empathy_chat_is_sms_channel (EmpathyChat *self)
4291 {
4292         EmpathyChatPriv *priv = GET_PRIV (self);
4293
4294         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4295
4296         return priv->sms_channel;
4297 }
4298
4299 guint
4300 empathy_chat_get_n_messages_sending (EmpathyChat *self)
4301 {
4302         EmpathyChatPriv *priv;
4303
4304         g_return_val_if_fail (EMPATHY_IS_CHAT (self), 0);
4305
4306         priv = GET_PRIV (self);
4307
4308         if (priv->tp_chat == NULL) {
4309                 return 0;
4310         } else {
4311                 guint n_messages;
4312
4313                 g_object_get (priv->tp_chat,
4314                         "n-messages-sending", &n_messages,
4315                         NULL);
4316
4317                 return n_messages;
4318         }
4319 }
4320
4321 gchar *
4322 empathy_chat_dup_text (EmpathyChat *self)
4323 {
4324         GtkTextBuffer *buffer;
4325         GtkTextIter     start, end;
4326
4327         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4328
4329         gtk_text_buffer_get_bounds (buffer, &start, &end);
4330         return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
4331 }
4332
4333 void
4334 empathy_chat_set_text (EmpathyChat *self,
4335                        const gchar *text)
4336 {
4337         GtkTextBuffer *buffer;
4338
4339         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->input_text_view));
4340
4341         gtk_text_buffer_set_text (buffer, text, -1);
4342 }