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) 2007-2008 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., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, 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 #include <gdk/gdkkeysyms.h>
  34 #include <glib/gi18n.h>
  35 #include <gtk/gtk.h>
  36
  37 #include <libmissioncontrol/mission-control.h>
  38
  39 #include <telepathy-glib/util.h>
  40
  41 #include <libempathy/empathy-contact-manager.h>
  42 #include <libempathy/empathy-log-manager.h>
  43 #include <libempathy/empathy-debug.h>
  44 #include <libempathy/empathy-utils.h>
  45
  46 #include "empathy-chat.h"
  47 #include "empathy-geometry.h"
  48 #include "empathy-conf.h"
  49 #include "empathy-spell.h"
  50 #include "empathy-spell-dialog.h"
  51 #include "empathy-ui-utils.h"
  52 #include "empathy-gtk-marshal.h"
  53
  54 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT, EmpathyChatPriv))
  55
  56 #define DEBUG_DOMAIN "Chat"
  57
  58 #define CHAT_DIR_CREATE_MODE  (S_IRUSR | S_IWUSR | S_IXUSR)
  59 #define CHAT_FILE_CREATE_MODE (S_IRUSR | S_IWUSR)
  60
  61 #define IS_ENTER(v) (v == GDK_Return || v == GDK_ISO_Enter || v == GDK_KP_Enter)
  62
  63 #define MAX_INPUT_HEIGHT 150
  64
  65 #define COMPOSING_STOP_TIMEOUT 5
  66
  67 struct _EmpathyChatPriv {
  68         EmpathyLogManager     *log_manager;
  69         EmpathyTpChat         *tp_chat;
  70         McAccount             *account;
  71         MissionControl        *mc;
  72         GtkWidget             *widget;
  73         guint                  composing_stop_timeout_id;
  74         gboolean               sensitive;
  75         gchar                 *id;
  76         GSList                *sent_messages;
  77         gint                   sent_messages_index;
  78         GList                 *compositors;
  79         guint                  scroll_idle_id;
  80         gboolean               first_tp_chat;
  81         GList                 *backlog_messages;
  82         gboolean               is_first_char;
  83         guint                  block_events_timeout_id;
  84         TpHandleType           handle_type;
  85         gchar                 *name;
  86         gchar                 *tooltip;
  87         const gchar           *icon_name;
  88         /* Used to automatically shrink a window that has temporarily
  89          * grown due to long input.
  90          */
  91         gint                   padding_height;
  92         gint                   default_window_height;
  93         gint                   last_input_height;
  94         gboolean               vscroll_visible;
  95 };
  96
  97 static void empathy_chat_class_init (EmpathyChatClass *klass);
  98 static void empathy_chat_init       (EmpathyChat      *chat);
  99
 100 enum {
 101         COMPOSING,
 102         NEW_MESSAGE,
 103         LAST_SIGNAL
 104 };
 105
 106 enum {
 107         PROP_0,
 108         PROP_TP_CHAT,
 109         PROP_NAME,
 110         PROP_TOOLTIP,
 111         PROP_ICON_NAME,
 112         PROP_WIDGET
 113 };
 114
 115 static guint signals[LAST_SIGNAL] = { 0 };
 116
 117 G_DEFINE_TYPE (EmpathyChat, empathy_chat, G_TYPE_OBJECT);
 118
 119 static void
 120 chat_get_property (GObject    *object,
 121                    guint       param_id,
 122                    GValue     *value,
 123                    GParamSpec *pspec)
 124 {
 125         EmpathyChatPriv *priv = GET_PRIV (object);
 126
 127         switch (param_id) {
 128         case PROP_TP_CHAT:
 129                 g_value_set_object (value, priv->tp_chat);
 130                 break;
 131         case PROP_NAME:
 132                 g_value_set_string (value, priv->name);
 133                 break;
 134         case PROP_TOOLTIP:
 135                 g_value_set_string (value, priv->tooltip);
 136                 break;
 137         case PROP_ICON_NAME:
 138                 g_value_set_string (value, priv->icon_name);
 139                 break;
 140         case PROP_WIDGET:
 141                 g_value_set_object (value, priv->widget);
 142                 break;
 143         default:
 144                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 145                 break;
 146         };
 147 }
 148
 149 static void
 150 chat_set_property (GObject      *object,
 151                    guint         param_id,
 152                    const GValue *value,
 153                    GParamSpec   *pspec)
 154 {
 155         EmpathyChat *chat = EMPATHY_CHAT (object);
 156
 157         switch (param_id) {
 158         case PROP_TP_CHAT:
 159                 empathy_chat_set_tp_chat (chat,
 160                                           EMPATHY_TP_CHAT (g_value_get_object (value)));
 161                 break;
 162         default:
 163                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 164                 break;
 165         };
 166 }
 167
 168 static void
 169 chat_status_changed_cb (MissionControl           *mc,
 170                         TpConnectionStatus        status,
 171                         McPresence                presence,
 172                         TpConnectionStatusReason  reason,
 173                         const gchar              *unique_name,
 174                         EmpathyChat              *chat)
 175 {
 176         EmpathyChatPriv *priv = GET_PRIV (chat);
 177         McAccount       *account;
 178
 179         account = mc_account_lookup (unique_name);
 180
 181         if (status == TP_CONNECTION_STATUS_CONNECTED && !priv->tp_chat &&
 182             empathy_account_equal (account, priv->account) &&
 183             priv->handle_type != 0) {
 184                 empathy_debug (DEBUG_DOMAIN,
 185                                "Account reconnected, request a new Text channel");
 186                 mission_control_request_channel_with_string_handle (mc,
 187                                                                     priv->account,
 188                                                                     TP_IFACE_CHANNEL_TYPE_TEXT,
 189                                                                     priv->id,
 190                                                                     priv->handle_type,
 191                                                                     NULL, NULL);
 192         }
 193
 194         g_object_unref (account);
 195 }
 196
 197 static void
 198 chat_composing_remove_timeout (EmpathyChat *chat)
 199 {
 200         EmpathyChatPriv *priv;
 201
 202         priv = GET_PRIV (chat);
 203
 204         if (priv->composing_stop_timeout_id) {
 205                 g_source_remove (priv->composing_stop_timeout_id);
 206                 priv->composing_stop_timeout_id = 0;
 207         }
 208 }
 209
 210 static gboolean
 211 chat_composing_stop_timeout_cb (EmpathyChat *chat)
 212 {
 213         EmpathyChatPriv *priv;
 214
 215         priv = GET_PRIV (chat);
 216
 217         priv->composing_stop_timeout_id = 0;
 218         empathy_tp_chat_set_state (priv->tp_chat,
 219                                    TP_CHANNEL_CHAT_STATE_PAUSED);
 220
 221         return FALSE;
 222 }
 223
 224 static void
 225 chat_composing_start (EmpathyChat *chat)
 226 {
 227         EmpathyChatPriv *priv;
 228
 229         priv = GET_PRIV (chat);
 230
 231         if (priv->composing_stop_timeout_id) {
 232                 /* Just restart the timeout */
 233                 chat_composing_remove_timeout (chat);
 234         } else {
 235                 empathy_tp_chat_set_state (priv->tp_chat,
 236                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
 237         }
 238
 239         priv->composing_stop_timeout_id = g_timeout_add_seconds (
 240                 COMPOSING_STOP_TIMEOUT,
 241                 (GSourceFunc) chat_composing_stop_timeout_cb,
 242                 chat);
 243 }
 244
 245 static void
 246 chat_composing_stop (EmpathyChat *chat)
 247 {
 248         EmpathyChatPriv *priv;
 249
 250         priv = GET_PRIV (chat);
 251
 252         chat_composing_remove_timeout (chat);
 253         empathy_tp_chat_set_state (priv->tp_chat,
 254                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
 255 }
 256
 257 static void
 258 chat_finalize (GObject *object)
 259 {
 260         EmpathyChat     *chat;
 261         EmpathyChatPriv *priv;
 262
 263         chat = EMPATHY_CHAT (object);
 264         priv = GET_PRIV (chat);
 265
 266         empathy_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 267
 268         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 269         g_slist_free (priv->sent_messages);
 270
 271         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
 272         g_list_free (priv->compositors);
 273
 274         chat_composing_remove_timeout (chat);
 275         g_object_unref (priv->log_manager);
 276
 277         dbus_g_proxy_disconnect_signal (DBUS_G_PROXY (priv->mc), "AccountStatusChanged",
 278                                         G_CALLBACK (chat_status_changed_cb),
 279                                         chat);
 280         g_object_unref (priv->mc);
 281
 282
 283         if (priv->tp_chat) {
 284                 g_object_unref (priv->tp_chat);
 285         }
 286
 287         if (priv->account) {
 288                 g_object_unref (priv->account);
 289         }
 290
 291         if (priv->scroll_idle_id) {
 292                 g_source_remove (priv->scroll_idle_id);
 293         }
 294
 295         if (priv->block_events_timeout_id) {
 296                 g_source_remove (priv->block_events_timeout_id);
 297         }
 298
 299         g_free (priv->id);
 300         g_free (priv->name);
 301         g_free (priv->tooltip);
 302
 303         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
 304 }
 305
 306 static void
 307 chat_destroy_cb (EmpathyTpChat *tp_chat,
 308                  EmpathyChat    *chat)
 309 {
 310         EmpathyChatPriv *priv;
 311
 312         priv = GET_PRIV (chat);
 313
 314         if (priv->tp_chat) {
 315                 g_object_unref (priv->tp_chat);
 316                 priv->tp_chat = NULL;
 317         }
 318         priv->sensitive = FALSE;
 319
 320         empathy_chat_view_append_event (chat->view, _("Disconnected"));
 321         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
 322
 323         if (priv->block_events_timeout_id != 0) {
 324                 g_source_remove (priv->block_events_timeout_id);
 325         }
 326 }
 327
 328 static void
 329 chat_sent_message_add (EmpathyChat  *chat,
 330                        const gchar *str)
 331 {
 332         EmpathyChatPriv *priv;
 333         GSList         *list;
 334         GSList         *item;
 335
 336         priv = GET_PRIV (chat);
 337
 338         /* Save the sent message in our repeat buffer */
 339         list = priv->sent_messages;
 340
 341         /* Remove any other occurances of this msg */
 342         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 343                 list = g_slist_remove_link (list, item);
 344                 g_free (item->data);
 345                 g_slist_free1 (item);
 346         }
 347
 348         /* Trim the list to the last 10 items */
 349         while (g_slist_length (list) > 10) {
 350                 item = g_slist_last (list);
 351                 if (item) {
 352                         list = g_slist_remove_link (list, item);
 353                         g_free (item->data);
 354                         g_slist_free1 (item);
 355                 }
 356         }
 357
 358         /* Add new message */
 359         list = g_slist_prepend (list, g_strdup (str));
 360
 361         /* Set list and reset the index */
 362         priv->sent_messages = list;
 363         priv->sent_messages_index = -1;
 364 }
 365
 366 static const gchar *
 367 chat_sent_message_get_next (EmpathyChat *chat)
 368 {
 369         EmpathyChatPriv *priv;
 370         gint            max;
 371
 372         priv = GET_PRIV (chat);
 373
 374         if (!priv->sent_messages) {
 375                 empathy_debug (DEBUG_DOMAIN,
 376                               "No sent messages, next message is NULL");
 377                 return NULL;
 378         }
 379
 380         max = g_slist_length (priv->sent_messages) - 1;
 381
 382         if (priv->sent_messages_index < max) {
 383                 priv->sent_messages_index++;
 384         }
 385
 386         empathy_debug (DEBUG_DOMAIN,
 387                       "Returning next message index:%d",
 388                       priv->sent_messages_index);
 389
 390         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 391 }
 392
 393 static const gchar *
 394 chat_sent_message_get_last (EmpathyChat *chat)
 395 {
 396         EmpathyChatPriv *priv;
 397
 398         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 399
 400         priv = GET_PRIV (chat);
 401
 402         if (!priv->sent_messages) {
 403                 empathy_debug (DEBUG_DOMAIN,
 404                               "No sent messages, last message is NULL");
 405                 return NULL;
 406         }
 407
 408         if (priv->sent_messages_index >= 0) {
 409                 priv->sent_messages_index--;
 410         }
 411
 412         empathy_debug (DEBUG_DOMAIN,
 413                       "Returning last message index:%d",
 414                       priv->sent_messages_index);
 415
 416         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 417 }
 418
 419 static void
 420 chat_send (EmpathyChat  *chat,
 421            const gchar *msg)
 422 {
 423         EmpathyChatPriv *priv;
 424         EmpathyMessage  *message;
 425
 426         priv = GET_PRIV (chat);
 427
 428         if (G_STR_EMPTY (msg)) {
 429                 return;
 430         }
 431
 432         chat_sent_message_add (chat, msg);
 433
 434         if (g_str_has_prefix (msg, "/clear")) {
 435                 empathy_chat_view_clear (chat->view);
 436                 return;
 437         }
 438
 439         message = empathy_message_new (msg);
 440
 441         empathy_tp_chat_send (priv->tp_chat, message);
 442
 443         g_object_unref (message);
 444 }
 445
 446 static void
 447 chat_input_text_view_send (EmpathyChat *chat)
 448 {
 449         EmpathyChatPriv *priv;
 450         GtkTextBuffer  *buffer;
 451         GtkTextIter     start, end;
 452         gchar          *msg;
 453
 454         priv = GET_PRIV (chat);
 455
 456         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 457
 458         gtk_text_buffer_get_bounds (buffer, &start, &end);
 459         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 460
 461         /* clear the input field */
 462         gtk_text_buffer_set_text (buffer, "", -1);
 463
 464         chat_send (chat, msg);
 465
 466         g_free (msg);
 467
 468         priv->is_first_char = TRUE;
 469 }
 470
 471 static void
 472 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
 473                        EmpathyContact     *contact,
 474                        TpChannelChatState  state,
 475                        EmpathyChat        *chat)
 476 {
 477         EmpathyChatPriv *priv;
 478         GList          *l;
 479         gboolean        was_composing;
 480
 481         priv = GET_PRIV (chat);
 482
 483         if (empathy_contact_is_user (contact)) {
 484                 /* We don't care about our own chat state */
 485                 return;
 486         }
 487
 488         was_composing = (priv->compositors != NULL);
 489
 490         /* Find the contact in the list. After that l is the list elem or NULL */
 491         for (l = priv->compositors; l; l = l->next) {
 492                 if (contact == l->data) {
 493                         break;
 494                 }
 495         }
 496
 497         switch (state) {
 498         case TP_CHANNEL_CHAT_STATE_GONE:
 499         case TP_CHANNEL_CHAT_STATE_INACTIVE:
 500         case TP_CHANNEL_CHAT_STATE_PAUSED:
 501         case TP_CHANNEL_CHAT_STATE_ACTIVE:
 502                 /* Contact is not composing */
 503                 if (l) {
 504                         priv->compositors = g_list_remove_link (priv->compositors, l);
 505                         g_object_unref (l->data);
 506                         g_list_free1 (l);
 507                 }
 508                 break;
 509         case TP_CHANNEL_CHAT_STATE_COMPOSING:
 510                 /* Contact is composing */
 511                 if (!l) {
 512                         priv->compositors = g_list_prepend (priv->compositors,
 513                                                             g_object_ref (contact));
 514                 }
 515                 break;
 516         default:
 517                 g_assert_not_reached ();
 518         }
 519
 520         empathy_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
 521                       was_composing ? "yes" : "no",
 522                       priv->compositors ? "yes" : "no");
 523
 524         if ((was_composing && !priv->compositors) ||
 525             (!was_composing && priv->compositors)) {
 526                 /* Composing state changed */
 527                 g_signal_emit (chat, signals[COMPOSING], 0,
 528                                priv->compositors != NULL);
 529         }
 530 }
 531
 532 static void
 533 chat_message_received_cb (EmpathyTpChat  *tp_chat,
 534                           EmpathyMessage *message,
 535                           EmpathyChat    *chat)
 536 {
 537         EmpathyChatPriv *priv;
 538         EmpathyContact  *sender;
 539         const gchar     *body;
 540
 541         priv = GET_PRIV (chat);
 542
 543         sender = empathy_message_get_sender (message);
 544         body = empathy_message_get_body (message);
 545         while (priv->backlog_messages) {
 546                 EmpathyMessage *log_message;
 547                 EmpathyContact *log_sender;
 548                 const gchar    *log_body;
 549
 550                 log_message = priv->backlog_messages->data;
 551                 log_sender = empathy_message_get_sender (log_message);
 552                 log_body = empathy_message_get_body (log_message);
 553
 554                 priv->backlog_messages = g_list_remove (priv->backlog_messages,
 555                                                         log_message);
 556
 557                 if (empathy_contact_equal (sender, log_sender) &&
 558                     !tp_strdiff (body, log_body)) {
 559                         /* The message we received is already displayed because
 560                          * some jabber chatrooms sends us back logs and we
 561                          * already displayed it from localy logged messages. */
 562                         empathy_debug (DEBUG_DOMAIN, "Skipping message because "
 563                                        "it is already displayed from logged "
 564                                        "messages");
 565                         g_object_unref (log_message);
 566                         return;
 567                 }
 568                 g_object_unref (log_message);
 569         }
 570
 571         empathy_debug (DEBUG_DOMAIN, "Appending new message from %s (%d)",
 572                        empathy_contact_get_name (sender),
 573                        empathy_contact_get_handle (sender));
 574
 575         empathy_log_manager_add_message (priv->log_manager,
 576                                          empathy_chat_get_id (chat),
 577                                          FALSE,
 578                                          message);
 579
 580         empathy_chat_view_append_message (chat->view, message);
 581
 582         if (empathy_chat_should_play_sound (chat)) {
 583                 // FIXME: empathy_sound_play (EMPATHY_SOUND_CHAT);
 584         }
 585
 586         /* We received a message so the contact is no more composing */
 587         chat_state_changed_cb (tp_chat, sender,
 588                                TP_CHANNEL_CHAT_STATE_ACTIVE,
 589                                chat);
 590
 591         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 592 }
 593
 594 static void
 595 chat_send_error_cb (EmpathyTpChat          *tp_chat,
 596                     EmpathyMessage         *message,
 597                     TpChannelTextSendError  error_code,
 598                     EmpathyChat            *chat)
 599 {
 600         const gchar *error;
 601         gchar       *str;
 602
 603         switch (error_code) {
 604         case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
 605                 error = _("offline");
 606                 break;
 607         case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
 608                 error = _("invalid contact");
 609                 break;
 610         case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
 611                 error = _("permission denied");
 612                 break;
 613         case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
 614                 error = _("too long message");
 615                 break;
 616         case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
 617                 error = _("not implemented");
 618                 break;
 619         default:
 620                 error = _("unknown");
 621                 break;
 622         }
 623
 624         str = g_strdup_printf (_("Error sending message '%s': %s"),
 625                                empathy_message_get_body (message),
 626                                error);
 627         empathy_chat_view_append_event (chat->view, str);
 628         g_free (str);
 629 }
 630
 631 static void
 632 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 633                                    EmpathyChat    *chat)
 634 {
 635         EmpathyChatPriv *priv;
 636         GtkTextIter     start, end;
 637         gchar          *str;
 638         gboolean        spell_checker = FALSE;
 639
 640         priv = GET_PRIV (chat);
 641
 642         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 643                 chat_composing_stop (chat);
 644         } else {
 645                 chat_composing_start (chat);
 646         }
 647
 648         empathy_conf_get_bool (empathy_conf_get (),
 649                               EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 650                               &spell_checker);
 651
 652         if (priv->is_first_char) {
 653                 GtkRequisition  req;
 654                 gint            window_height;
 655                 GtkWindow      *dialog;
 656                 GtkAllocation  *allocation;
 657
 658                 /* Save the window's size */
 659                 dialog = empathy_get_toplevel_window (priv->widget);
 660                 if (dialog) {
 661                         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &window_height);
 662                         gtk_widget_size_request (chat->input_text_view, &req);
 663                         allocation = &GTK_WIDGET (chat->view)->allocation;
 664
 665                         priv->default_window_height = window_height;
 666                         priv->last_input_height = req.height;
 667                         priv->padding_height = window_height - req.height - allocation->height;
 668                 }
 669
 670                 priv->is_first_char = FALSE;
 671         }
 672
 673         gtk_text_buffer_get_start_iter (buffer, &start);
 674
 675         if (!spell_checker) {
 676                 gtk_text_buffer_get_end_iter (buffer, &end);
 677                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 678                 return;
 679         }
 680
 681         if (!empathy_spell_supported ()) {
 682                 return;
 683         }
 684
 685         /* NOTE: this is really inefficient, we shouldn't have to
 686            reiterate the whole buffer each time and check each work
 687            every time. */
 688         while (TRUE) {
 689                 gboolean correct = FALSE;
 690
 691                 /* if at start */
 692                 if (gtk_text_iter_is_start (&start)) {
 693                         end = start;
 694
 695                         if (!gtk_text_iter_forward_word_end (&end)) {
 696                                 /* no whole word yet */
 697                                 break;
 698                         }
 699                 } else {
 700                         if (!gtk_text_iter_forward_word_end (&end)) {
 701                                 /* must be the end of the buffer */
 702                                 break;
 703                         }
 704
 705                         start = end;
 706                         gtk_text_iter_backward_word_start (&start);
 707                 }
 708
 709                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 710
 711                 /* spell check string */
 712                 if (!empathy_chat_get_is_command (str)) {
 713                         correct = empathy_spell_check (str);
 714                 } else {
 715                         correct = TRUE;
 716                 }
 717
 718                 if (!correct) {
 719                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 720                 } else {
 721                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 722                 }
 723
 724                 g_free (str);
 725
 726                 /* set start iter to the end iters position */
 727                 start = end;
 728         }
 729 }
 730
 731 static gboolean
 732 chat_input_key_press_event_cb (GtkWidget   *widget,
 733                                GdkEventKey *event,
 734                                EmpathyChat *chat)
 735 {
 736         EmpathyChatPriv *priv;
 737         GtkAdjustment  *adj;
 738         gdouble         val;
 739         GtkWidget      *text_view_sw;
 740
 741         priv = GET_PRIV (chat);
 742
 743         /* Catch ctrl+up/down so we can traverse messages we sent */
 744         if ((event->state & GDK_CONTROL_MASK) &&
 745             (event->keyval == GDK_Up ||
 746              event->keyval == GDK_Down)) {
 747                 GtkTextBuffer *buffer;
 748                 const gchar   *str;
 749
 750                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 751
 752                 if (event->keyval == GDK_Up) {
 753                         str = chat_sent_message_get_next (chat);
 754                 } else {
 755                         str = chat_sent_message_get_last (chat);
 756                 }
 757
 758                 g_signal_handlers_block_by_func (buffer,
 759                                                  chat_input_text_buffer_changed_cb,
 760                                                  chat);
 761                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 762                 g_signal_handlers_unblock_by_func (buffer,
 763                                                    chat_input_text_buffer_changed_cb,
 764                                                    chat);
 765
 766                 return TRUE;
 767         }
 768
 769         /* Catch enter but not ctrl/shift-enter */
 770         if (IS_ENTER (event->keyval) &&
 771             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 772                 GtkTextView *view;
 773
 774                 /* This is to make sure that kinput2 gets the enter. And if
 775                  * it's handled there we shouldn't send on it. This is because
 776                  * kinput2 uses Enter to commit letters. See:
 777                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 778                  */
 779
 780                 view = GTK_TEXT_VIEW (chat->input_text_view);
 781                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 782                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 783                         return TRUE;
 784                 }
 785
 786                 chat_input_text_view_send (chat);
 787                 return TRUE;
 788         }
 789
 790         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 791
 792         if (IS_ENTER (event->keyval) &&
 793             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 794                 /* Newline for shift/control-enter. */
 795                 return FALSE;
 796         }
 797         else if (!(event->state & GDK_CONTROL_MASK) &&
 798                  event->keyval == GDK_Page_Up) {
 799                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 800                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 801
 802                 return TRUE;
 803         }
 804         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 805                  event->keyval == GDK_Page_Down) {
 806                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 807                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 808                 gtk_adjustment_set_value (adj, val);
 809
 810                 return TRUE;
 811         }
 812
 813         return FALSE;
 814 }
 815
 816 static gboolean
 817 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 818                                   GdkEvent   *event,
 819                                   EmpathyChat *chat)
 820 {
 821         gtk_widget_grab_focus (chat->input_text_view);
 822
 823         return TRUE;
 824 }
 825
 826 typedef struct {
 827         GtkWindow *window;
 828         gint       width;
 829         gint       height;
 830 } ChangeSizeData;
 831
 832 static gboolean
 833 chat_change_size_in_idle_cb (ChangeSizeData *data)
 834 {
 835         gtk_window_resize (data->window, data->width, data->height);
 836
 837         return FALSE;
 838 }
 839
 840 static void
 841 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 842                                EmpathyChat *chat)
 843 {
 844         EmpathyChatPriv *priv;
 845         GtkWidget      *sw;
 846
 847         priv = GET_PRIV (chat);
 848
 849         priv->vscroll_visible = FALSE;
 850         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 851
 852         sw = gtk_widget_get_parent (chat->input_text_view);
 853         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 854                                         GTK_POLICY_NEVER,
 855                                         GTK_POLICY_NEVER);
 856         g_object_set (sw, "height-request", -1, NULL);
 857 }
 858
 859 static void
 860 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 861                                  GtkAllocation *allocation,
 862                                  EmpathyChat    *chat)
 863 {
 864         EmpathyChatPriv *priv;
 865         gint            width;
 866         GtkWindow      *dialog;
 867         ChangeSizeData *data;
 868         gint            window_height;
 869         gint            new_height;
 870         GtkAllocation  *view_allocation;
 871         gint            current_height;
 872         gint            diff;
 873         GtkWidget      *sw;
 874
 875         priv = GET_PRIV (chat);
 876
 877         if (priv->default_window_height <= 0) {
 878                 return;
 879         }
 880
 881         sw = gtk_widget_get_parent (widget);
 882         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 883                 GtkWidget *vscroll;
 884
 885                 priv->vscroll_visible = TRUE;
 886                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 887                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 888                                                 GTK_POLICY_NEVER,
 889                                                 GTK_POLICY_AUTOMATIC);
 890                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 891                 g_signal_connect (vscroll, "hide",
 892                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 893                                   chat);
 894         }
 895
 896         if (priv->last_input_height <= allocation->height) {
 897                 priv->last_input_height = allocation->height;
 898                 return;
 899         }
 900
 901         diff = priv->last_input_height - allocation->height;
 902         priv->last_input_height = allocation->height;
 903
 904         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 905
 906         dialog = empathy_get_toplevel_window (priv->widget);
 907         gtk_window_get_size (dialog, NULL, &current_height);
 908
 909         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 910
 911         if (new_height <= priv->default_window_height) {
 912                 window_height = priv->default_window_height;
 913         } else {
 914                 window_height = new_height;
 915         }
 916
 917         if (current_height <= window_height) {
 918                 return;
 919         }
 920
 921         /* Restore the window's size */
 922         gtk_window_get_size (dialog, &width, NULL);
 923
 924         data = g_new0 (ChangeSizeData, 1);
 925         data->window = dialog;
 926         data->width  = width;
 927         data->height = window_height;
 928
 929         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 930                          (GSourceFunc) chat_change_size_in_idle_cb,
 931                          data, g_free);
 932 }
 933
 934 static void
 935 chat_text_view_realize_cb (GtkWidget  *widget,
 936                            EmpathyChat *chat)
 937 {
 938         empathy_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 939         gtk_widget_grab_focus (widget);
 940 }
 941
 942 static void
 943 chat_insert_smiley_activate_cb (GtkWidget   *menuitem,
 944                                 EmpathyChat *chat)
 945 {
 946         GtkTextBuffer *buffer;
 947         GtkTextIter    iter;
 948         const gchar   *smiley;
 949
 950         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 951
 952         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 953
 954         gtk_text_buffer_get_end_iter (buffer, &iter);
 955         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 956
 957         gtk_text_buffer_get_end_iter (buffer, &iter);
 958         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 959 }
 960
 961 typedef struct {
 962         EmpathyChat  *chat;
 963         gchar       *word;
 964
 965         GtkTextIter  start;
 966         GtkTextIter  end;
 967 } EmpathyChatSpell;
 968
 969 static EmpathyChatSpell *
 970 chat_spell_new (EmpathyChat  *chat,
 971                 const gchar *word,
 972                 GtkTextIter  start,
 973                 GtkTextIter  end)
 974 {
 975         EmpathyChatSpell *chat_spell;
 976
 977         chat_spell = g_slice_new0 (EmpathyChatSpell);
 978
 979         chat_spell->chat = g_object_ref (chat);
 980         chat_spell->word = g_strdup (word);
 981         chat_spell->start = start;
 982         chat_spell->end = end;
 983
 984         return chat_spell;
 985 }
 986
 987 static void
 988 chat_spell_free (EmpathyChatSpell *chat_spell)
 989 {
 990         g_object_unref (chat_spell->chat);
 991         g_free (chat_spell->word);
 992         g_slice_free (EmpathyChatSpell, chat_spell);
 993 }
 994
 995 static void
 996 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 997                                   EmpathyChatSpell *chat_spell)
 998 {
 999         empathy_spell_dialog_show (chat_spell->chat,
1000                                   chat_spell->start,
1001                                   chat_spell->end,
1002                                   chat_spell->word);
1003 }
1004
1005 static void
1006 chat_text_populate_popup_cb (GtkTextView *view,
1007                              GtkMenu     *menu,
1008                              EmpathyChat  *chat)
1009 {
1010         EmpathyChatPriv  *priv;
1011         GtkTextBuffer   *buffer;
1012         GtkTextTagTable *table;
1013         GtkTextTag      *tag;
1014         gint             x, y;
1015         GtkTextIter      iter, start, end;
1016         GtkWidget       *item;
1017         gchar           *str = NULL;
1018         EmpathyChatSpell *chat_spell;
1019         GtkWidget       *smiley_menu;
1020
1021         priv = GET_PRIV (chat);
1022
1023         /* Add the emoticon menu. */
1024         item = gtk_separator_menu_item_new ();
1025         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1026         gtk_widget_show (item);
1027
1028         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
1029         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1030         gtk_widget_show (item);
1031
1032         smiley_menu = empathy_chat_view_get_smiley_menu (
1033                 G_CALLBACK (chat_insert_smiley_activate_cb),
1034                 chat);
1035         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
1036
1037         /* Add the spell check menu item. */
1038         buffer = gtk_text_view_get_buffer (view);
1039         table = gtk_text_buffer_get_tag_table (buffer);
1040
1041         tag = gtk_text_tag_table_lookup (table, "misspelled");
1042
1043         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
1044
1045         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
1046                                                GTK_TEXT_WINDOW_WIDGET,
1047                                                x, y,
1048                                                &x, &y);
1049
1050         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
1051
1052         start = end = iter;
1053
1054         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
1055             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
1056
1057                 str = gtk_text_buffer_get_text (buffer,
1058                                                 &start, &end, FALSE);
1059         }
1060
1061         if (G_STR_EMPTY (str)) {
1062                 return;
1063         }
1064
1065         chat_spell = chat_spell_new (chat, str, start, end);
1066
1067         g_object_set_data_full (G_OBJECT (menu),
1068                                 "chat_spell", chat_spell,
1069                                 (GDestroyNotify) chat_spell_free);
1070
1071         item = gtk_separator_menu_item_new ();
1072         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1073         gtk_widget_show (item);
1074
1075         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
1076         g_signal_connect (item,
1077                           "activate",
1078                           G_CALLBACK (chat_text_check_word_spelling_cb),
1079                           chat_spell);
1080         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1081         gtk_widget_show (item);
1082 }
1083
1084 static gboolean
1085 chat_scroll_down_idle_func (EmpathyChat *chat)
1086 {
1087         EmpathyChatPriv *priv;
1088
1089         priv = GET_PRIV (chat);
1090
1091         empathy_chat_scroll_down (chat);
1092         g_object_unref (chat);
1093
1094         priv->scroll_idle_id = 0;
1095
1096         return FALSE;
1097 }
1098
1099 static void
1100 chat_add_logs (EmpathyChat *chat)
1101 {
1102         EmpathyChatPriv *priv;
1103         GList          *messages, *l;
1104         guint           num_messages;
1105         guint           i;
1106
1107         priv = GET_PRIV (chat);
1108
1109         /* Turn off scrolling temporarily */
1110         empathy_chat_view_scroll (chat->view, FALSE);
1111
1112         /* Add messages from last conversation */
1113         messages = empathy_log_manager_get_last_messages (priv->log_manager,
1114                                                           priv->account,
1115                                                           empathy_chat_get_id (chat),
1116                                                           FALSE);
1117         num_messages  = g_list_length (messages);
1118
1119         /* Only keep the 10 last messages */
1120         for (i = 0; num_messages - i > 10; i++) {
1121                 EmpathyMessage *message;
1122
1123                 message = messages->data;
1124                 messages = g_list_remove (messages, message);
1125                 g_object_unref (message);
1126         }
1127
1128         for (l = messages; l; l = l->next) {
1129                 empathy_chat_view_append_message (chat->view, l->data);
1130         }
1131         priv->backlog_messages = messages;
1132
1133         /* Turn back on scrolling */
1134         empathy_chat_view_scroll (chat->view, TRUE);
1135
1136         /* Scroll to the most recent messages, we reference the chat
1137          * for the duration of the scroll func.
1138          */
1139         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
1140                                            g_object_ref (chat));
1141 }
1142
1143 static void
1144 empathy_chat_class_init (EmpathyChatClass *klass)
1145 {
1146         GObjectClass *object_class;
1147
1148         object_class = G_OBJECT_CLASS (klass);
1149
1150         object_class->finalize = chat_finalize;
1151         object_class->get_property = chat_get_property;
1152         object_class->set_property = chat_set_property;
1153
1154         g_object_class_install_property (object_class,
1155                                          PROP_TP_CHAT,
1156                                          g_param_spec_object ("tp-chat",
1157                                                               "Empathy tp chat",
1158                                                               "The tp chat object",
1159                                                               EMPATHY_TYPE_TP_CHAT,
1160                                                               G_PARAM_CONSTRUCT |
1161                                                               G_PARAM_READWRITE));
1162         g_object_class_install_property (object_class,
1163                                          PROP_NAME,
1164                                          g_param_spec_string ("name",
1165                                                               "Chat's name",
1166                                                               "The name of the chat",
1167                                                               NULL,
1168                                                               G_PARAM_READABLE));
1169         g_object_class_install_property (object_class,
1170                                          PROP_TOOLTIP,
1171                                          g_param_spec_string ("tooltip",
1172                                                               "Chat's tooltip",
1173                                                               "The tooltip of the chat",
1174                                                               NULL,
1175                                                               G_PARAM_READABLE));
1176         g_object_class_install_property (object_class,
1177                                          PROP_ICON_NAME,
1178                                          g_param_spec_string ("icon-name",
1179                                                               "Chat's icon name",
1180                                                               "The icon name of the chat",
1181                                                               NULL,
1182                                                               G_PARAM_READABLE));
1183         g_object_class_install_property (object_class,
1184                                          PROP_WIDGET,
1185                                          g_param_spec_object ("widget",
1186                                                               "Chat's widget",
1187                                                               "The widget of the chat",
1188                                                               GTK_TYPE_WIDGET,
1189                                                               G_PARAM_READABLE));
1190
1191         signals[COMPOSING] =
1192                 g_signal_new ("composing",
1193                               G_OBJECT_CLASS_TYPE (object_class),
1194                               G_SIGNAL_RUN_LAST,
1195                               0,
1196                               NULL, NULL,
1197                               g_cclosure_marshal_VOID__BOOLEAN,
1198                               G_TYPE_NONE,
1199                               1, G_TYPE_BOOLEAN);
1200
1201         signals[NEW_MESSAGE] =
1202                 g_signal_new ("new-message",
1203                               G_OBJECT_CLASS_TYPE (object_class),
1204                               G_SIGNAL_RUN_LAST,
1205                               0,
1206                               NULL, NULL,
1207                               _empathy_gtk_marshal_VOID__OBJECT_BOOLEAN,
1208                               G_TYPE_NONE,
1209                               2, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN);
1210
1211         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
1212 }
1213
1214 static void
1215 empathy_chat_init (EmpathyChat *chat)
1216 {
1217         EmpathyChatPriv *priv = GET_PRIV (chat);
1218         GtkTextBuffer  *buffer;
1219
1220         chat->view = empathy_chat_view_new ();
1221         chat->input_text_view = gtk_text_view_new ();
1222
1223         priv->is_first_char = TRUE;
1224
1225         g_object_set (chat->input_text_view,
1226                       "pixels-above-lines", 2,
1227                       "pixels-below-lines", 2,
1228                       "pixels-inside-wrap", 1,
1229                       "right-margin", 2,
1230                       "left-margin", 2,
1231                       "wrap-mode", GTK_WRAP_WORD_CHAR,
1232                       NULL);
1233
1234         priv->log_manager = empathy_log_manager_new ();
1235         priv->default_window_height = -1;
1236         priv->vscroll_visible = FALSE;
1237         priv->sensitive = TRUE;
1238         priv->sent_messages = NULL;
1239         priv->sent_messages_index = -1;
1240         priv->first_tp_chat = TRUE;
1241         priv->mc = empathy_mission_control_new ();
1242
1243         dbus_g_proxy_connect_signal (DBUS_G_PROXY (priv->mc), "AccountStatusChanged",
1244                                      G_CALLBACK (chat_status_changed_cb),
1245                                      chat, NULL);
1246
1247         g_signal_connect (chat->input_text_view,
1248                           "key_press_event",
1249                           G_CALLBACK (chat_input_key_press_event_cb),
1250                           chat);
1251
1252         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1253         g_signal_connect (buffer,
1254                           "changed",
1255                           G_CALLBACK (chat_input_text_buffer_changed_cb),
1256                           chat);
1257         g_signal_connect (chat->view,
1258                           "focus_in_event",
1259                           G_CALLBACK (chat_text_view_focus_in_event_cb),
1260                           chat);
1261
1262         g_signal_connect (chat->input_text_view,
1263                           "size_allocate",
1264                           G_CALLBACK (chat_text_view_size_allocate_cb),
1265                           chat);
1266
1267         g_signal_connect (chat->input_text_view,
1268                           "realize",
1269                           G_CALLBACK (chat_text_view_realize_cb),
1270                           chat);
1271
1272         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
1273                           "populate_popup",
1274                           G_CALLBACK (chat_text_populate_popup_cb),
1275                           chat);
1276
1277         /* create misspelt words identification tag */
1278         gtk_text_buffer_create_tag (buffer,
1279                                     "misspelled",
1280                                     "underline", PANGO_UNDERLINE_ERROR,
1281                                     NULL);
1282 }
1283
1284 gboolean
1285 empathy_chat_get_is_command (const gchar *str)
1286 {
1287         g_return_val_if_fail (str != NULL, FALSE);
1288
1289         if (str[0] != '/') {
1290                 return FALSE;
1291         }
1292
1293         if (g_str_has_prefix (str, "/me")) {
1294                 return TRUE;
1295         }
1296         else if (g_str_has_prefix (str, "/nick")) {
1297                 return TRUE;
1298         }
1299         else if (g_str_has_prefix (str, "/topic")) {
1300                 return TRUE;
1301         }
1302
1303         return FALSE;
1304 }
1305
1306 void
1307 empathy_chat_correct_word (EmpathyChat  *chat,
1308                           GtkTextIter  start,
1309                           GtkTextIter  end,
1310                           const gchar *new_word)
1311 {
1312         GtkTextBuffer *buffer;
1313
1314         g_return_if_fail (chat != NULL);
1315         g_return_if_fail (new_word != NULL);
1316
1317         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1318
1319         gtk_text_buffer_delete (buffer, &start, &end);
1320         gtk_text_buffer_insert (buffer, &start,
1321                                 new_word,
1322                                 -1);
1323 }
1324
1325 const gchar *
1326 empathy_chat_get_name (EmpathyChat *chat)
1327 {
1328         EmpathyChatPriv *priv = GET_PRIV (chat);
1329
1330         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1331
1332         return priv->name;
1333 }
1334
1335 const gchar *
1336 empathy_chat_get_tooltip (EmpathyChat *chat)
1337 {
1338         EmpathyChatPriv *priv = GET_PRIV (chat);
1339
1340         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1341
1342         return priv->tooltip;
1343 }
1344
1345 const gchar *
1346 empathy_chat_get_status_icon_name (EmpathyChat *chat)
1347 {
1348         EmpathyChatPriv *priv = GET_PRIV (chat);
1349
1350         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1351
1352         return priv->icon_name;
1353 }
1354
1355 GtkWidget *
1356 empathy_chat_get_widget (EmpathyChat *chat)
1357 {
1358         EmpathyChatPriv *priv = GET_PRIV (chat);
1359
1360         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1361
1362         return priv->widget;
1363 }
1364
1365 gboolean
1366 empathy_chat_is_connected (EmpathyChat *chat)
1367 {
1368         EmpathyChatPriv *priv;
1369
1370         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1371
1372         priv = GET_PRIV (chat);
1373
1374         return (priv->tp_chat != NULL);
1375 }
1376
1377 static const gchar *
1378 chat_get_window_id_for_geometry (EmpathyChat *chat)
1379 {
1380         gboolean separate_windows;
1381
1382         empathy_conf_get_bool (empathy_conf_get (),
1383                                EMPATHY_PREFS_UI_SEPARATE_CHAT_WINDOWS,
1384                                &separate_windows);
1385
1386         if (separate_windows) {
1387                 return empathy_chat_get_id (chat);
1388         } else {
1389                 return "chat-window";
1390         }
1391 }
1392
1393 void
1394 empathy_chat_save_geometry (EmpathyChat *chat,
1395                            gint        x,
1396                            gint        y,
1397                            gint        w,
1398                            gint        h)
1399 {
1400         empathy_geometry_save (chat_get_window_id_for_geometry (chat), x, y, w, h);
1401 }
1402
1403 void
1404 empathy_chat_load_geometry (EmpathyChat *chat,
1405                            gint       *x,
1406                            gint       *y,
1407                            gint       *w,
1408                            gint       *h)
1409 {
1410         empathy_geometry_load (chat_get_window_id_for_geometry (chat), x, y, w, h);
1411 }
1412
1413 static gboolean
1414 chat_block_events_timeout_cb (gpointer data)
1415 {
1416         EmpathyChat     *chat = EMPATHY_CHAT (data);
1417         EmpathyChatPriv *priv = GET_PRIV (chat);
1418
1419         chat->block_events = FALSE;
1420         priv->block_events_timeout_id = 0;
1421
1422         return FALSE;
1423 }
1424
1425 void
1426 empathy_chat_set_tp_chat (EmpathyChat   *chat,
1427                           EmpathyTpChat *tp_chat)
1428 {
1429         EmpathyChatPriv *priv;
1430         TpChan          *tp_chan;
1431
1432         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1433         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1434
1435         priv = GET_PRIV (chat);
1436
1437         if (tp_chat == priv->tp_chat) {
1438                 return;
1439         }
1440
1441         /* Block events for some time to avoid having "has come online" or
1442          * "joined" messages. */
1443         chat->block_events = TRUE;
1444         if (priv->block_events_timeout_id != 0) {
1445                 g_source_remove (priv->block_events_timeout_id);
1446         }
1447         priv->block_events_timeout_id =
1448                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
1449
1450         if (priv->tp_chat) {
1451                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1452                                                       chat_message_received_cb,
1453                                                       chat);
1454                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1455                                                       chat_send_error_cb,
1456                                                       chat);
1457                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1458                                                       chat_destroy_cb,
1459                                                       chat);
1460                 g_object_unref (priv->tp_chat);
1461         }
1462         if (priv->account) {
1463                 g_object_unref (priv->account);
1464         }
1465
1466         g_free (priv->id);
1467         priv->tp_chat = g_object_ref (tp_chat);
1468         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1469         priv->account = g_object_ref (empathy_tp_chat_get_account (tp_chat));
1470         tp_chan = empathy_tp_chat_get_channel (tp_chat);
1471         priv->handle_type = tp_chan->handle_type;
1472
1473         if (priv->first_tp_chat) {
1474                 chat_add_logs (chat);
1475                 priv->first_tp_chat = FALSE;
1476         }
1477
1478         g_signal_connect (tp_chat, "message-received",
1479                           G_CALLBACK (chat_message_received_cb),
1480                           chat);
1481         g_signal_connect (tp_chat, "send-error",
1482                           G_CALLBACK (chat_send_error_cb),
1483                           chat);
1484         g_signal_connect (tp_chat, "chat-state-changed",
1485                           G_CALLBACK (chat_state_changed_cb),
1486                           chat);
1487         g_signal_connect (tp_chat, "destroy",
1488                           G_CALLBACK (chat_destroy_cb),
1489                           chat);
1490
1491         if (!priv->sensitive) {
1492                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
1493                 empathy_chat_view_append_event (chat->view, _("Connected"));
1494                 priv->sensitive = TRUE;
1495         }
1496
1497         g_object_notify (G_OBJECT (chat), "tp-chat");
1498 }
1499
1500 const gchar *
1501 empathy_chat_get_id (EmpathyChat *chat)
1502 {
1503         EmpathyChatPriv *priv;
1504
1505         priv = GET_PRIV (chat);
1506
1507         return priv->id;
1508 }
1509
1510 McAccount *
1511 empathy_chat_get_account (EmpathyChat *chat)
1512 {
1513         EmpathyChatPriv *priv = GET_PRIV (chat);
1514
1515         return priv->account;
1516 }
1517
1518 void
1519 empathy_chat_clear (EmpathyChat *chat)
1520 {
1521         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1522
1523         empathy_chat_view_clear (chat->view);
1524 }
1525
1526 void
1527 empathy_chat_scroll_down (EmpathyChat *chat)
1528 {
1529         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1530
1531         empathy_chat_view_scroll_down (chat->view);
1532 }
1533
1534 void
1535 empathy_chat_cut (EmpathyChat *chat)
1536 {
1537         GtkTextBuffer *buffer;
1538
1539         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1540
1541         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1542         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1543                 GtkClipboard *clipboard;
1544
1545                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1546
1547                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1548         }
1549 }
1550
1551 void
1552 empathy_chat_copy (EmpathyChat *chat)
1553 {
1554         GtkTextBuffer *buffer;
1555
1556         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1557
1558         if (empathy_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1559                 empathy_chat_view_copy_clipboard (chat->view);
1560                 return;
1561         }
1562
1563         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1564         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1565                 GtkClipboard *clipboard;
1566
1567                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1568
1569                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1570         }
1571 }
1572
1573 void
1574 empathy_chat_paste (EmpathyChat *chat)
1575 {
1576         GtkTextBuffer *buffer;
1577         GtkClipboard  *clipboard;
1578
1579         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1580
1581         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1582         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1583
1584         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1585 }
1586
1587 gboolean
1588 empathy_chat_should_play_sound (EmpathyChat *chat)
1589 {
1590         EmpathyChatPriv *priv = GET_PRIV (chat);
1591         GtkWindow       *window;
1592         gboolean         has_focus = FALSE;
1593
1594         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1595
1596         window = empathy_get_toplevel_window (priv->widget);
1597         if (window) {
1598                 g_object_get (window, "has-toplevel-focus", &has_focus, NULL);
1599         }
1600
1601         return !has_focus;
1602 }
1603
1604 gboolean
1605 empathy_chat_should_highlight_nick (EmpathyMessage *message)
1606 {
1607         EmpathyContact *contact;
1608         const gchar   *msg, *to;
1609         gchar         *cf_msg, *cf_to;
1610         gchar         *ch;
1611         gboolean       ret_val;
1612
1613         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1614
1615         empathy_debug (DEBUG_DOMAIN, "Highlighting nickname");
1616
1617         ret_val = FALSE;
1618
1619         msg = empathy_message_get_body (message);
1620         if (!msg) {
1621                 return FALSE;
1622         }
1623
1624         contact = empathy_message_get_receiver (message);
1625         if (!contact || !empathy_contact_is_user (contact)) {
1626                 return FALSE;
1627         }
1628
1629         to = empathy_contact_get_name (contact);
1630         if (!to) {
1631                 return FALSE;
1632         }
1633
1634         cf_msg = g_utf8_casefold (msg, -1);
1635         cf_to = g_utf8_casefold (to, -1);
1636
1637         ch = strstr (cf_msg, cf_to);
1638         if (ch == NULL) {
1639                 goto finished;
1640         }
1641
1642         if (ch != cf_msg) {
1643                 /* Not first in the message */
1644                 if ((*(ch - 1) != ' ') &&
1645                     (*(ch - 1) != ',') &&
1646                     (*(ch - 1) != '.')) {
1647                         goto finished;
1648                 }
1649         }
1650
1651         ch = ch + strlen (cf_to);
1652         if (ch >= cf_msg + strlen (cf_msg)) {
1653                 ret_val = TRUE;
1654                 goto finished;
1655         }
1656
1657         if ((*ch == ' ') ||
1658             (*ch == ',') ||
1659             (*ch == '.') ||
1660             (*ch == ':')) {
1661                 ret_val = TRUE;
1662                 goto finished;
1663         }
1664
1665 finished:
1666         g_free (cf_msg);
1667         g_free (cf_to);
1668
1669         return ret_val;
1670 }
1671