libempathy-gtk/gossip-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 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 #include <glade/glade.h>
  37
  38 #include <libempathy/empathy-contact-manager.h>
  39 #include <libempathy/gossip-debug.h>
  40 #include <libempathy/gossip-utils.h>
  41 #include <libempathy/gossip-conf.h>
  42
  43 #include "gossip-chat.h"
  44 #include "gossip-chat-window.h"
  45 #include "gossip-geometry.h"
  46 #include "gossip-preferences.h"
  47 #include "gossip-spell.h"
  48 //#include "gossip-spell-dialog.h"
  49 #include "gossip-ui-utils.h"
  50
  51 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GOSSIP_TYPE_CHAT, GossipChatPriv))
  52
  53 #define DEBUG_DOMAIN "Chat"
  54
  55 #define CHAT_DIR_CREATE_MODE  (S_IRUSR | S_IWUSR | S_IXUSR)
  56 #define CHAT_FILE_CREATE_MODE (S_IRUSR | S_IWUSR)
  57
  58 #define IS_ENTER(v) (v == GDK_Return || v == GDK_ISO_Enter || v == GDK_KP_Enter)
  59
  60 #define MAX_INPUT_HEIGHT 150
  61
  62 #define COMPOSING_STOP_TIMEOUT 5
  63
  64 struct _GossipChatPriv {
  65         EmpathyContactManager *manager;
  66         EmpathyTpChat         *tp_chat;
  67         GossipChatWindow      *window;
  68
  69         GtkTooltips           *tooltips;
  70         guint                  composing_stop_timeout_id;
  71         gboolean               sensitive;
  72         gchar                 *id;
  73         GSList                *sent_messages;
  74         gint                   sent_messages_index;
  75         /* Used to automatically shrink a window that has temporarily
  76          * grown due to long input.
  77          */
  78         gint                   padding_height;
  79         gint                   default_window_height;
  80         gint                   last_input_height;
  81         gboolean               vscroll_visible;
  82 };
  83
  84 typedef struct {
  85         GossipChat  *chat;
  86         gchar       *word;
  87
  88         GtkTextIter  start;
  89         GtkTextIter  end;
  90 } GossipChatSpell;
  91
  92 static void             gossip_chat_class_init            (GossipChatClass *klass);
  93 static void             gossip_chat_init                  (GossipChat      *chat);
  94 static void             chat_finalize                     (GObject         *object);
  95 static void             chat_destroy_cb                   (EmpathyTpChat   *tp_chat,
  96                                                            GossipChat      *chat);
  97 static void             chat_send                         (GossipChat      *chat,
  98                                                            const gchar     *msg);
  99 static void             chat_input_text_view_send         (GossipChat      *chat);
 100 static void             chat_message_received_cb          (EmpathyTpChat   *tp_chat,
 101                                                            GossipMessage   *message,
 102                                                            GossipChat      *chat);
 103 void                    chat_sent_message_add             (GossipChat      *chat,
 104                                                            const gchar     *str);
 105 const gchar *           chat_sent_message_get_next        (GossipChat      *chat);
 106 const gchar *           chat_sent_message_get_last        (GossipChat      *chat);
 107 static gboolean         chat_input_key_press_event_cb     (GtkWidget       *widget,
 108                                                            GdkEventKey     *event,
 109                                                            GossipChat      *chat);
 110 static void             chat_input_text_buffer_changed_cb (GtkTextBuffer   *buffer,
 111                                                            GossipChat      *chat);
 112 static gboolean         chat_text_view_focus_in_event_cb  (GtkWidget       *widget,
 113                                                            GdkEvent        *event,
 114                                                            GossipChat      *chat);
 115 static void             chat_text_view_scroll_hide_cb     (GtkWidget       *widget,
 116                                                            GossipChat      *chat);
 117 static void             chat_text_view_size_allocate_cb   (GtkWidget       *widget,
 118                                                            GtkAllocation   *allocation,
 119                                                            GossipChat      *chat);
 120 static void             chat_text_view_realize_cb         (GtkWidget       *widget,
 121                                                            GossipChat      *chat);
 122 static void             chat_text_populate_popup_cb       (GtkTextView     *view,
 123                                                            GtkMenu         *menu,
 124                                                            GossipChat      *chat);
 125 static void             chat_text_check_word_spelling_cb  (GtkMenuItem     *menuitem,
 126                                                            GossipChatSpell *chat_spell);
 127 static GossipChatSpell *chat_spell_new                    (GossipChat      *chat,
 128                                                            const gchar     *word,
 129                                                            GtkTextIter      start,
 130                                                            GtkTextIter      end);
 131 static void             chat_spell_free                   (GossipChatSpell *chat_spell);
 132 static void             chat_composing_start              (GossipChat      *chat);
 133 static void             chat_composing_stop               (GossipChat      *chat);
 134 static void             chat_composing_remove_timeout     (GossipChat      *chat);
 135 static gboolean         chat_composing_stop_timeout_cb    (GossipChat      *chat);
 136 static void             chat_state_changed_cb             (EmpathyTpChat   *tp_chat,
 137                                                            GossipContact   *contact,
 138                                                            TelepathyChannelChatState  state,
 139                                                            GossipChat      *chat);
 140
 141 enum {
 142         COMPOSING,
 143         NEW_MESSAGE,
 144         NAME_CHANGED,
 145         STATUS_CHANGED,
 146         LAST_SIGNAL
 147 };
 148
 149 static guint chat_signals[LAST_SIGNAL] = { 0 };
 150
 151 G_DEFINE_TYPE (GossipChat, gossip_chat, G_TYPE_OBJECT);
 152
 153 static void
 154 gossip_chat_class_init (GossipChatClass *klass)
 155 {
 156         GObjectClass *object_class;
 157
 158         object_class = G_OBJECT_CLASS (klass);
 159
 160         object_class->finalize = chat_finalize;
 161
 162         chat_signals[COMPOSING] =
 163                 g_signal_new ("composing",
 164                               G_OBJECT_CLASS_TYPE (object_class),
 165                               G_SIGNAL_RUN_LAST,
 166                               0,
 167                               NULL, NULL,
 168                               g_cclosure_marshal_VOID__BOOLEAN,
 169                               G_TYPE_NONE,
 170                               1, G_TYPE_BOOLEAN);
 171
 172         chat_signals[NEW_MESSAGE] =
 173                 g_signal_new ("new-message",
 174                               G_OBJECT_CLASS_TYPE (object_class),
 175                               G_SIGNAL_RUN_LAST,
 176                               0,
 177                               NULL, NULL,
 178                               g_cclosure_marshal_VOID__OBJECT,
 179                               G_TYPE_NONE,
 180                               1, GOSSIP_TYPE_MESSAGE);
 181
 182         chat_signals[NAME_CHANGED] =
 183                 g_signal_new ("name-changed",
 184                               G_OBJECT_CLASS_TYPE (object_class),
 185                               G_SIGNAL_RUN_LAST,
 186                               0,
 187                               NULL, NULL,
 188                               g_cclosure_marshal_VOID__POINTER,
 189                               G_TYPE_NONE,
 190                               1, G_TYPE_POINTER);
 191
 192         chat_signals[STATUS_CHANGED] =
 193                 g_signal_new ("status-changed",
 194                               G_OBJECT_CLASS_TYPE (object_class),
 195                               G_SIGNAL_RUN_LAST,
 196                               0,
 197                               NULL, NULL,
 198                               g_cclosure_marshal_VOID__VOID,
 199                               G_TYPE_NONE,
 200                               0);
 201
 202         g_type_class_add_private (object_class, sizeof (GossipChatPriv));
 203 }
 204
 205 static void
 206 gossip_chat_init (GossipChat *chat)
 207 {
 208         GossipChatPriv *priv;
 209         GtkTextBuffer  *buffer;
 210
 211         chat->view = gossip_chat_view_new ();
 212         chat->input_text_view = gtk_text_view_new ();
 213
 214         chat->is_first_char = TRUE;
 215
 216         g_object_set (chat->input_text_view,
 217                       "pixels-above-lines", 2,
 218                       "pixels-below-lines", 2,
 219                       "pixels-inside-wrap", 1,
 220                       "right-margin", 2,
 221                       "left-margin", 2,
 222                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 223                       NULL);
 224
 225         priv = GET_PRIV (chat);
 226
 227         priv->manager = empathy_contact_manager_new ();
 228         priv->tooltips = gtk_tooltips_new ();
 229         priv->default_window_height = -1;
 230         priv->vscroll_visible = FALSE;
 231         priv->sensitive = TRUE;
 232         priv->sent_messages = NULL;
 233         priv->sent_messages_index = -1;
 234
 235         g_signal_connect (chat->input_text_view,
 236                           "key_press_event",
 237                           G_CALLBACK (chat_input_key_press_event_cb),
 238                           chat);
 239
 240         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 241         g_signal_connect (buffer,
 242                           "changed",
 243                           G_CALLBACK (chat_input_text_buffer_changed_cb),
 244                           chat);
 245         g_signal_connect (chat->view,
 246                           "focus_in_event",
 247                           G_CALLBACK (chat_text_view_focus_in_event_cb),
 248                           chat);
 249
 250         g_signal_connect (chat->input_text_view,
 251                           "size_allocate",
 252                           G_CALLBACK (chat_text_view_size_allocate_cb),
 253                           chat);
 254
 255         g_signal_connect (chat->input_text_view,
 256                           "realize",
 257                           G_CALLBACK (chat_text_view_realize_cb),
 258                           chat);
 259
 260         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
 261                           "populate_popup",
 262                           G_CALLBACK (chat_text_populate_popup_cb),
 263                           chat);
 264
 265         /* create misspelt words identification tag */
 266         gtk_text_buffer_create_tag (buffer,
 267                                     "misspelled",
 268                                     "underline", PANGO_UNDERLINE_ERROR,
 269                                     NULL);
 270 }
 271
 272 static void
 273 chat_finalize (GObject *object)
 274 {
 275         GossipChat     *chat;
 276         GossipChatPriv *priv;
 277
 278         chat = GOSSIP_CHAT (object);
 279         priv = GET_PRIV (chat);
 280
 281         gossip_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 282
 283         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 284         g_slist_free (priv->sent_messages);
 285
 286         chat_composing_remove_timeout (chat);
 287         g_object_unref (chat->account);
 288         g_object_unref (priv->manager);
 289
 290         if (priv->tp_chat) {
 291                 g_object_unref (priv->tp_chat);
 292         }
 293
 294         g_free (priv->id);
 295
 296         G_OBJECT_CLASS (gossip_chat_parent_class)->finalize (object);
 297 }
 298
 299 static void
 300 chat_destroy_cb (EmpathyTpChat *tp_chat,
 301                  GossipChat    *chat)
 302 {
 303         GossipChatPriv *priv;
 304         GtkWidget      *widget;
 305
 306         priv = GET_PRIV (chat);
 307
 308         if (priv->tp_chat) {
 309                 g_object_unref (priv->tp_chat);
 310                 priv->tp_chat = NULL;
 311         }
 312
 313         gossip_chat_view_append_event (chat->view, _("Disconnected"));
 314
 315         widget = gossip_chat_get_widget (chat);
 316         gtk_widget_set_sensitive (widget, FALSE);
 317         priv->sensitive = FALSE;
 318 }
 319
 320 static void
 321 chat_send (GossipChat  *chat,
 322            const gchar *msg)
 323 {
 324         GossipChatPriv   *priv;
 325         //GossipLogManager *log_manager;
 326         GossipMessage    *message;
 327         GossipContact    *own_contact;
 328
 329         priv = GET_PRIV (chat);
 330
 331         if (G_STR_EMPTY (msg)) {
 332                 return;
 333         }
 334
 335         chat_sent_message_add (chat, msg);
 336
 337         if (g_str_has_prefix (msg, "/clear")) {
 338                 gossip_chat_view_clear (chat->view);
 339                 return;
 340         }
 341
 342         /* FIXME: gossip_app_set_not_away ();*/
 343
 344         own_contact = gossip_chat_get_own_contact (chat);
 345         message = gossip_message_new (msg);
 346         gossip_message_set_sender (message, own_contact);
 347
 348         //FIXME: log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 349         //gossip_log_message_for_contact (log_manager, message, FALSE);
 350
 351         empathy_tp_chat_send (priv->tp_chat, message);
 352
 353         g_object_unref (message);
 354 }
 355
 356 static void
 357 chat_input_text_view_send (GossipChat *chat)
 358 {
 359         GossipChatPriv *priv;
 360         GtkTextBuffer  *buffer;
 361         GtkTextIter     start, end;
 362         gchar          *msg;
 363
 364         priv = GET_PRIV (chat);
 365
 366         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 367
 368         gtk_text_buffer_get_bounds (buffer, &start, &end);
 369         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 370
 371         /* clear the input field */
 372         gtk_text_buffer_set_text (buffer, "", -1);
 373
 374         chat_send (chat, msg);
 375
 376         g_free (msg);
 377
 378         chat->is_first_char = TRUE;
 379 }
 380
 381 static void
 382 chat_message_received_cb (EmpathyTpChat *tp_chat,
 383                           GossipMessage *message,
 384                           GossipChat    *chat)
 385 {
 386         GossipChatPriv *priv;
 387         //GossipLogManager      *log_manager;
 388         GossipContact         *sender;
 389
 390         priv = GET_PRIV (chat);
 391
 392         sender = gossip_message_get_sender (message);
 393         gossip_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 394                       gossip_contact_get_name (sender));
 395
 396 /*FIXME:
 397         log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 398         gossip_log_message_for_contact (log_manager, message, TRUE);
 399 */
 400         gossip_chat_view_append_message (chat->view, message);
 401
 402         if (gossip_chat_should_play_sound (chat)) {
 403                 // FIXME: gossip_sound_play (GOSSIP_SOUND_CHAT);
 404         }
 405
 406         g_signal_emit_by_name (chat, "new-message", message);
 407 }
 408
 409 void
 410 chat_sent_message_add (GossipChat  *chat,
 411                        const gchar *str)
 412 {
 413         GossipChatPriv *priv;
 414         GSList         *list;
 415         GSList         *item;
 416
 417         priv = GET_PRIV (chat);
 418
 419         /* Save the sent message in our repeat buffer */
 420         list = priv->sent_messages;
 421
 422         /* Remove any other occurances of this msg */
 423         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 424                 list = g_slist_remove_link (list, item);
 425                 g_free (item->data);
 426                 g_slist_free1 (item);
 427         }
 428
 429         /* Trim the list to the last 10 items */
 430         while (g_slist_length (list) > 10) {
 431                 item = g_slist_last (list);
 432                 if (item) {
 433                         list = g_slist_remove_link (list, item);
 434                         g_free (item->data);
 435                         g_slist_free1 (item);
 436                 }
 437         }
 438
 439         /* Add new message */
 440         list = g_slist_prepend (list, g_strdup (str));
 441
 442         /* Set list and reset the index */
 443         priv->sent_messages = list;
 444         priv->sent_messages_index = -1;
 445 }
 446
 447 const gchar *
 448 chat_sent_message_get_next (GossipChat *chat)
 449 {
 450         GossipChatPriv *priv;
 451         gint            max;
 452
 453         priv = GET_PRIV (chat);
 454
 455         if (!priv->sent_messages) {
 456                 gossip_debug (DEBUG_DOMAIN,
 457                               "No sent messages, next message is NULL");
 458                 return NULL;
 459         }
 460
 461         max = g_slist_length (priv->sent_messages) - 1;
 462
 463         if (priv->sent_messages_index < max) {
 464                 priv->sent_messages_index++;
 465         }
 466
 467         gossip_debug (DEBUG_DOMAIN,
 468                       "Returning next message index:%d",
 469                       priv->sent_messages_index);
 470
 471         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 472 }
 473
 474 const gchar *
 475 chat_sent_message_get_last (GossipChat *chat)
 476 {
 477         GossipChatPriv *priv;
 478
 479         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
 480
 481         priv = GET_PRIV (chat);
 482
 483         if (!priv->sent_messages) {
 484                 gossip_debug (DEBUG_DOMAIN,
 485                               "No sent messages, last message is NULL");
 486                 return NULL;
 487         }
 488
 489         if (priv->sent_messages_index >= 0) {
 490                 priv->sent_messages_index--;
 491         }
 492
 493         gossip_debug (DEBUG_DOMAIN,
 494                       "Returning last message index:%d",
 495                       priv->sent_messages_index);
 496
 497         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 498 }
 499
 500 static gboolean
 501 chat_input_key_press_event_cb (GtkWidget   *widget,
 502                                GdkEventKey *event,
 503                                GossipChat  *chat)
 504 {
 505         GossipChatPriv *priv;
 506         GtkAdjustment  *adj;
 507         gdouble         val;
 508         GtkWidget      *text_view_sw;
 509
 510         priv = GET_PRIV (chat);
 511
 512         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 513                 return TRUE;
 514         }
 515
 516         /* Catch ctrl+up/down so we can traverse messages we sent */
 517         if ((event->state & GDK_CONTROL_MASK) &&
 518             (event->keyval == GDK_Up ||
 519              event->keyval == GDK_Down)) {
 520                 GtkTextBuffer *buffer;
 521                 const gchar   *str;
 522
 523                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 524
 525                 if (event->keyval == GDK_Up) {
 526                         str = chat_sent_message_get_next (chat);
 527                 } else {
 528                         str = chat_sent_message_get_last (chat);
 529                 }
 530
 531                 g_signal_handlers_block_by_func (buffer,
 532                                                  chat_input_text_buffer_changed_cb,
 533                                                  chat);
 534                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 535                 g_signal_handlers_unblock_by_func (buffer,
 536                                                    chat_input_text_buffer_changed_cb,
 537                                                    chat);
 538
 539                 return TRUE;
 540         }
 541
 542         /* Catch enter but not ctrl/shift-enter */
 543         if (IS_ENTER (event->keyval) && !(event->state & GDK_SHIFT_MASK)) {
 544                 GtkTextView *view;
 545
 546                 /* This is to make sure that kinput2 gets the enter. And if
 547                  * it's handled there we shouldn't send on it. This is because
 548                  * kinput2 uses Enter to commit letters. See:
 549                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 550                  */
 551
 552                 view = GTK_TEXT_VIEW (chat->input_text_view);
 553                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 554                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 555                         return TRUE;
 556                 }
 557
 558                 chat_input_text_view_send (chat);
 559                 return TRUE;
 560         }
 561
 562         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 563
 564         if (IS_ENTER (event->keyval) && (event->state & GDK_SHIFT_MASK)) {
 565                 /* Newline for shift-enter. */
 566                 return FALSE;
 567         }
 568         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 569                  event->keyval == GDK_Page_Up) {
 570                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 571                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 572
 573                 return TRUE;
 574         }
 575         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 576                  event->keyval == GDK_Page_Down) {
 577                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 578                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 579                 gtk_adjustment_set_value (adj, val);
 580
 581                 return TRUE;
 582         }
 583
 584         return FALSE;
 585 }
 586
 587 static gboolean
 588 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 589                                   GdkEvent   *event,
 590                                   GossipChat *chat)
 591 {
 592         gtk_widget_grab_focus (chat->input_text_view);
 593
 594         return TRUE;
 595 }
 596
 597 static void
 598 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 599                                    GossipChat    *chat)
 600 {
 601         GossipChatPriv *priv;
 602         GtkTextIter     start, end;
 603         gchar          *str;
 604         gboolean        spell_checker = FALSE;
 605
 606         priv = GET_PRIV (chat);
 607
 608         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 609                 chat_composing_stop (chat);
 610         } else {
 611                 chat_composing_start (chat);
 612         }
 613
 614         gossip_conf_get_bool (gossip_conf_get (),
 615                               GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 616                               &spell_checker);
 617
 618         if (chat->is_first_char) {
 619                 GtkRequisition  req;
 620                 gint            window_height;
 621                 GtkWidget      *dialog;
 622                 GtkAllocation  *allocation;
 623
 624                 /* Save the window's size */
 625                 dialog = gossip_chat_window_get_dialog (priv->window);
 626                 gtk_window_get_size (GTK_WINDOW (dialog),
 627                                      NULL, &window_height);
 628
 629                 gtk_widget_size_request (chat->input_text_view, &req);
 630
 631                 allocation = &GTK_WIDGET (chat->view)->allocation;
 632
 633                 priv->default_window_height = window_height;
 634                 priv->last_input_height = req.height;
 635                 priv->padding_height = window_height - req.height - allocation->height;
 636
 637                 chat->is_first_char = FALSE;
 638         }
 639
 640         gtk_text_buffer_get_start_iter (buffer, &start);
 641
 642         if (!spell_checker) {
 643                 gtk_text_buffer_get_end_iter (buffer, &end);
 644                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 645                 return;
 646         }
 647
 648         if (!gossip_spell_supported ()) {
 649                 return;
 650         }
 651
 652         /* NOTE: this is really inefficient, we shouldn't have to
 653            reiterate the whole buffer each time and check each work
 654            every time. */
 655         while (TRUE) {
 656                 gboolean correct = FALSE;
 657
 658                 /* if at start */
 659                 if (gtk_text_iter_is_start (&start)) {
 660                         end = start;
 661
 662                         if (!gtk_text_iter_forward_word_end (&end)) {
 663                                 /* no whole word yet */
 664                                 break;
 665                         }
 666                 } else {
 667                         if (!gtk_text_iter_forward_word_end (&end)) {
 668                                 /* must be the end of the buffer */
 669                                 break;
 670                         }
 671
 672                         start = end;
 673                         gtk_text_iter_backward_word_start (&start);
 674                 }
 675
 676                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 677
 678                 /* spell check string */
 679                 if (!gossip_chat_get_is_command (str)) {
 680                         correct = gossip_spell_check (str);
 681                 } else {
 682                         correct = TRUE;
 683                 }
 684
 685                 if (!correct) {
 686                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 687                 } else {
 688                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 689                 }
 690
 691                 g_free (str);
 692
 693                 /* set start iter to the end iters position */
 694                 start = end;
 695         }
 696 }
 697
 698 typedef struct {
 699         GtkWidget *window;
 700         gint       width;
 701         gint       height;
 702 } ChangeSizeData;
 703
 704 static gboolean
 705 chat_change_size_in_idle_cb (ChangeSizeData *data)
 706 {
 707         gtk_window_resize (GTK_WINDOW (data->window),
 708                            data->width, data->height);
 709
 710         return FALSE;
 711 }
 712
 713 static void
 714 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 715                                GossipChat *chat)
 716 {
 717         GossipChatPriv *priv;
 718         GtkWidget      *sw;
 719
 720         priv = GET_PRIV (chat);
 721
 722         priv->vscroll_visible = FALSE;
 723         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 724
 725         sw = gtk_widget_get_parent (chat->input_text_view);
 726         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 727                                         GTK_POLICY_NEVER,
 728                                         GTK_POLICY_NEVER);
 729         g_object_set (sw, "height-request", -1, NULL);
 730 }
 731
 732 static void
 733 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 734                                  GtkAllocation *allocation,
 735                                  GossipChat    *chat)
 736 {
 737         GossipChatPriv *priv;
 738         gint            width;
 739         GtkWidget      *dialog;
 740         ChangeSizeData *data;
 741         gint            window_height;
 742         gint            new_height;
 743         GtkAllocation  *view_allocation;
 744         gint            current_height;
 745         gint            diff;
 746         GtkWidget      *sw;
 747
 748         priv = GET_PRIV (chat);
 749
 750         if (priv->default_window_height <= 0) {
 751                 return;
 752         }
 753
 754         sw = gtk_widget_get_parent (widget);
 755         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 756                 GtkWidget *vscroll;
 757
 758                 priv->vscroll_visible = TRUE;
 759                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 760                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 761                                                 GTK_POLICY_NEVER,
 762                                                 GTK_POLICY_AUTOMATIC);
 763                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 764                 g_signal_connect (vscroll, "hide",
 765                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 766                                   chat);
 767         }
 768
 769         if (priv->last_input_height <= allocation->height) {
 770                 priv->last_input_height = allocation->height;
 771                 return;
 772         }
 773
 774         diff = priv->last_input_height - allocation->height;
 775         priv->last_input_height = allocation->height;
 776
 777         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 778
 779         dialog = gossip_chat_window_get_dialog (priv->window);
 780         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 781
 782         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 783
 784         if (new_height <= priv->default_window_height) {
 785                 window_height = priv->default_window_height;
 786         } else {
 787                 window_height = new_height;
 788         }
 789
 790         if (current_height <= window_height) {
 791                 return;
 792         }
 793
 794         /* Restore the window's size */
 795         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 796
 797         data = g_new0 (ChangeSizeData, 1);
 798         data->window = dialog;
 799         data->width  = width;
 800         data->height = window_height;
 801
 802         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 803                          (GSourceFunc) chat_change_size_in_idle_cb,
 804                          data, g_free);
 805 }
 806
 807 static void
 808 chat_text_view_realize_cb (GtkWidget  *widget,
 809                            GossipChat *chat)
 810 {
 811         gossip_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 812         gtk_widget_grab_focus (widget);
 813 }
 814
 815 static void
 816 chat_insert_smiley_activate_cb (GtkWidget  *menuitem,
 817                                 GossipChat *chat)
 818 {
 819         GtkTextBuffer *buffer;
 820         GtkTextIter    iter;
 821         const gchar   *smiley;
 822
 823         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 824
 825         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 826
 827         gtk_text_buffer_get_end_iter (buffer, &iter);
 828         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 829
 830         gtk_text_buffer_get_end_iter (buffer, &iter);
 831         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 832 }
 833
 834 static void
 835 chat_text_populate_popup_cb (GtkTextView *view,
 836                              GtkMenu     *menu,
 837                              GossipChat  *chat)
 838 {
 839         GossipChatPriv  *priv;
 840         GtkTextBuffer   *buffer;
 841         GtkTextTagTable *table;
 842         GtkTextTag      *tag;
 843         gint             x, y;
 844         GtkTextIter      iter, start, end;
 845         GtkWidget       *item;
 846         gchar           *str = NULL;
 847         GossipChatSpell *chat_spell;
 848         GtkWidget       *smiley_menu;
 849
 850         priv = GET_PRIV (chat);
 851
 852         /* Add the emoticon menu. */
 853         item = gtk_separator_menu_item_new ();
 854         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 855         gtk_widget_show (item);
 856
 857         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 858         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 859         gtk_widget_show (item);
 860
 861         smiley_menu = gossip_chat_view_get_smiley_menu (
 862                 G_CALLBACK (chat_insert_smiley_activate_cb),
 863                 chat,
 864                 priv->tooltips);
 865         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 866
 867         /* Add the spell check menu item. */
 868         buffer = gtk_text_view_get_buffer (view);
 869         table = gtk_text_buffer_get_tag_table (buffer);
 870
 871         tag = gtk_text_tag_table_lookup (table, "misspelled");
 872
 873         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 874
 875         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 876                                                GTK_TEXT_WINDOW_WIDGET,
 877                                                x, y,
 878                                                &x, &y);
 879
 880         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 881
 882         start = end = iter;
 883
 884         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 885             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 886
 887                 str = gtk_text_buffer_get_text (buffer,
 888                                                 &start, &end, FALSE);
 889         }
 890
 891         if (G_STR_EMPTY (str)) {
 892                 return;
 893         }
 894
 895         chat_spell = chat_spell_new (chat, str, start, end);
 896
 897         g_object_set_data_full (G_OBJECT (menu),
 898                                 "chat_spell", chat_spell,
 899                                 (GDestroyNotify) chat_spell_free);
 900
 901         item = gtk_separator_menu_item_new ();
 902         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 903         gtk_widget_show (item);
 904
 905         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 906         g_signal_connect (item,
 907                           "activate",
 908                           G_CALLBACK (chat_text_check_word_spelling_cb),
 909                           chat_spell);
 910         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 911         gtk_widget_show (item);
 912 }
 913
 914 static void
 915 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 916                                   GossipChatSpell *chat_spell)
 917 {
 918 /*FIXME:        gossip_spell_dialog_show (chat_spell->chat,
 919                                   chat_spell->start,
 920                                   chat_spell->end,
 921                                   chat_spell->word);*/
 922 }
 923
 924 static GossipChatSpell *
 925 chat_spell_new (GossipChat  *chat,
 926                 const gchar *word,
 927                 GtkTextIter  start,
 928                 GtkTextIter  end)
 929 {
 930         GossipChatSpell *chat_spell;
 931
 932         chat_spell = g_new0 (GossipChatSpell, 1);
 933
 934         chat_spell->chat = g_object_ref (chat);
 935         chat_spell->word = g_strdup (word);
 936         chat_spell->start = start;
 937         chat_spell->end = end;
 938
 939         return chat_spell;
 940 }
 941
 942 static void
 943 chat_spell_free (GossipChatSpell *chat_spell)
 944 {
 945         g_object_unref (chat_spell->chat);
 946         g_free (chat_spell->word);
 947         g_free (chat_spell);
 948 }
 949
 950 static void
 951 chat_composing_start (GossipChat *chat)
 952 {
 953         GossipChatPriv *priv;
 954
 955         priv = GET_PRIV (chat);
 956
 957         if (priv->composing_stop_timeout_id) {
 958                 /* Just restart the timeout */
 959                 chat_composing_remove_timeout (chat);
 960         } else {
 961                 empathy_tp_chat_set_state (priv->tp_chat,
 962                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
 963         }
 964
 965         priv->composing_stop_timeout_id = g_timeout_add (
 966                 1000 * COMPOSING_STOP_TIMEOUT,
 967                 (GSourceFunc) chat_composing_stop_timeout_cb,
 968                 chat);
 969 }
 970
 971 static void
 972 chat_composing_stop (GossipChat *chat)
 973 {
 974         GossipChatPriv *priv;
 975
 976         priv = GET_PRIV (chat);
 977
 978         chat_composing_remove_timeout (chat);
 979         empathy_tp_chat_set_state (priv->tp_chat,
 980                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
 981 }
 982
 983 static void
 984 chat_composing_remove_timeout (GossipChat *chat)
 985 {
 986         GossipChatPriv *priv;
 987
 988         priv = GET_PRIV (chat);
 989
 990         if (priv->composing_stop_timeout_id) {
 991                 g_source_remove (priv->composing_stop_timeout_id);
 992                 priv->composing_stop_timeout_id = 0;
 993         }
 994 }
 995
 996 static gboolean
 997 chat_composing_stop_timeout_cb (GossipChat *chat)
 998 {
 999         GossipChatPriv *priv;
1000
1001         priv = GET_PRIV (chat);
1002
1003         priv->composing_stop_timeout_id = 0;
1004         empathy_tp_chat_set_state (priv->tp_chat,
1005                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1006
1007         return FALSE;
1008 }
1009
1010 static void
1011 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1012                        GossipContact             *contact,
1013                        TelepathyChannelChatState  state,
1014                        GossipChat                *chat)
1015 {
1016         /* FIXME: not yet implemented */
1017 }
1018
1019 gboolean
1020 gossip_chat_get_is_command (const gchar *str)
1021 {
1022         g_return_val_if_fail (str != NULL, FALSE);
1023
1024         if (str[0] != '/') {
1025                 return FALSE;
1026         }
1027
1028         if (g_str_has_prefix (str, "/me")) {
1029                 return TRUE;
1030         }
1031         else if (g_str_has_prefix (str, "/nick")) {
1032                 return TRUE;
1033         }
1034         else if (g_str_has_prefix (str, "/topic")) {
1035                 return TRUE;
1036         }
1037
1038         return FALSE;
1039 }
1040
1041 void
1042 gossip_chat_correct_word (GossipChat  *chat,
1043                           GtkTextIter  start,
1044                           GtkTextIter  end,
1045                           const gchar *new_word)
1046 {
1047         GtkTextBuffer *buffer;
1048
1049         g_return_if_fail (chat != NULL);
1050         g_return_if_fail (new_word != NULL);
1051
1052         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1053
1054         gtk_text_buffer_delete (buffer, &start, &end);
1055         gtk_text_buffer_insert (buffer, &start,
1056                                 new_word,
1057                                 -1);
1058 }
1059
1060 const gchar *
1061 gossip_chat_get_name (GossipChat *chat)
1062 {
1063         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1064
1065         if (GOSSIP_CHAT_GET_CLASS (chat)->get_name) {
1066                 return GOSSIP_CHAT_GET_CLASS (chat)->get_name (chat);
1067         }
1068
1069         return NULL;
1070 }
1071
1072 gchar *
1073 gossip_chat_get_tooltip (GossipChat *chat)
1074 {
1075         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1076
1077         if (GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip) {
1078                 return GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1079         }
1080
1081         return NULL;
1082 }
1083
1084 const gchar *
1085 gossip_chat_get_status_icon_name (GossipChat *chat)
1086 {
1087         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1088
1089         if (GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1090                 return GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1091         }
1092
1093         return NULL;
1094 }
1095
1096 GossipContact *
1097 gossip_chat_get_contact (GossipChat *chat)
1098 {
1099         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1100
1101         if (GOSSIP_CHAT_GET_CLASS (chat)->get_contact) {
1102                 return GOSSIP_CHAT_GET_CLASS (chat)->get_contact (chat);
1103         }
1104
1105         return NULL;
1106 }
1107 GossipContact *
1108 gossip_chat_get_own_contact (GossipChat *chat)
1109 {
1110         GossipChatPriv *priv;
1111
1112         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1113
1114         priv = GET_PRIV (chat);
1115
1116         return empathy_contact_manager_get_own (priv->manager, chat->account);
1117 }
1118
1119 GtkWidget *
1120 gossip_chat_get_widget (GossipChat *chat)
1121 {
1122         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1123
1124         if (GOSSIP_CHAT_GET_CLASS (chat)->get_widget) {
1125                 return GOSSIP_CHAT_GET_CLASS (chat)->get_widget (chat);
1126         }
1127
1128         return NULL;
1129 }
1130
1131 gboolean
1132 gossip_chat_is_group_chat (GossipChat *chat)
1133 {
1134         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1135
1136         if (GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat) {
1137                 return GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1138         }
1139
1140         return FALSE;
1141 }
1142
1143 gboolean
1144 gossip_chat_is_connected (GossipChat *chat)
1145 {
1146         GossipChatPriv *priv;
1147
1148         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1149
1150         priv = GET_PRIV (chat);
1151
1152         return (priv->tp_chat != NULL);
1153 }
1154
1155 gboolean
1156 gossip_chat_get_show_contacts (GossipChat *chat)
1157 {
1158         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1159
1160         if (GOSSIP_CHAT_GET_CLASS (chat)->get_show_contacts) {
1161                 return GOSSIP_CHAT_GET_CLASS (chat)->get_show_contacts (chat);
1162         }
1163
1164         return FALSE;
1165 }
1166
1167 void
1168 gossip_chat_set_show_contacts (GossipChat *chat,
1169                                gboolean    show)
1170 {
1171         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1172
1173         if (GOSSIP_CHAT_GET_CLASS (chat)->set_show_contacts) {
1174                 GOSSIP_CHAT_GET_CLASS (chat)->set_show_contacts (chat, show);
1175         }
1176 }
1177
1178 void
1179 gossip_chat_save_geometry (GossipChat *chat,
1180                            gint        x,
1181                            gint        y,
1182                            gint        w,
1183                            gint        h)
1184 {
1185         gossip_geometry_save (gossip_chat_get_id (chat), x, y, w, h);
1186 }
1187
1188 void
1189 gossip_chat_load_geometry (GossipChat *chat,
1190                            gint       *x,
1191                            gint       *y,
1192                            gint       *w,
1193                            gint       *h)
1194 {
1195         gossip_geometry_load (gossip_chat_get_id (chat), x, y, w, h);
1196 }
1197
1198 void
1199 gossip_chat_set_tp_chat (GossipChat    *chat,
1200                          EmpathyTpChat *tp_chat)
1201 {
1202         GossipChatPriv *priv;
1203         GtkWidget      *widget;
1204
1205         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1206         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1207
1208         priv = GET_PRIV (chat);
1209
1210         if (tp_chat == priv->tp_chat) {
1211                 return;
1212         }
1213
1214         if (priv->tp_chat) {
1215                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1216                                                       chat_message_received_cb,
1217                                                       chat);
1218                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1219                                                       chat_destroy_cb,
1220                                                       chat);
1221                 g_object_unref (priv->tp_chat);
1222         }
1223
1224         g_free (priv->id);
1225         priv->tp_chat = g_object_ref (tp_chat);
1226         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1227
1228         g_signal_connect (tp_chat, "message-received",
1229                           G_CALLBACK (chat_message_received_cb),
1230                           chat);
1231         g_signal_connect (tp_chat, "chat-state-changed",
1232                           G_CALLBACK (chat_state_changed_cb),
1233                           chat);
1234         g_signal_connect (tp_chat, "destroy",
1235                           G_CALLBACK (chat_destroy_cb),
1236                           chat);
1237
1238         empathy_tp_chat_request_pending (tp_chat);
1239
1240         if (!priv->sensitive) {
1241                 widget = gossip_chat_get_widget (chat);
1242                 gtk_widget_set_sensitive (widget, TRUE);
1243                 gossip_chat_view_append_event (chat->view, _("Connected"));
1244                 priv->sensitive = TRUE;
1245         }
1246 }
1247
1248 const gchar *
1249 gossip_chat_get_id (GossipChat *chat)
1250 {
1251         GossipChatPriv *priv;
1252
1253         priv = GET_PRIV (chat);
1254
1255         return priv->id;
1256 }
1257
1258 void
1259 gossip_chat_clear (GossipChat *chat)
1260 {
1261         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1262
1263         gossip_chat_view_clear (chat->view);
1264 }
1265
1266 void
1267 gossip_chat_set_window (GossipChat       *chat,
1268                         GossipChatWindow *window)
1269 {
1270         GossipChatPriv *priv;
1271
1272         priv = GET_PRIV (chat);
1273         priv->window = window;
1274 }
1275
1276 GossipChatWindow *
1277 gossip_chat_get_window (GossipChat *chat)
1278 {
1279         GossipChatPriv *priv;
1280
1281         priv = GET_PRIV (chat);
1282
1283         return priv->window;
1284 }
1285
1286 void
1287 gossip_chat_scroll_down (GossipChat *chat)
1288 {
1289         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1290
1291         gossip_chat_view_scroll_down (chat->view);
1292 }
1293
1294 void
1295 gossip_chat_cut (GossipChat *chat)
1296 {
1297         GtkTextBuffer *buffer;
1298
1299         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1300
1301         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1302         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1303                 GtkClipboard *clipboard;
1304
1305                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1306
1307                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1308         }
1309 }
1310
1311 void
1312 gossip_chat_copy (GossipChat *chat)
1313 {
1314         GtkTextBuffer *buffer;
1315
1316         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1317
1318         if (gossip_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1319                 gossip_chat_view_copy_clipboard (chat->view);
1320                 return;
1321         }
1322
1323         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1324         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1325                 GtkClipboard *clipboard;
1326
1327                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1328
1329                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1330         }
1331 }
1332
1333 void
1334 gossip_chat_paste (GossipChat *chat)
1335 {
1336         GtkTextBuffer *buffer;
1337         GtkClipboard  *clipboard;
1338
1339         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1340
1341         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1342         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1343
1344         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1345 }
1346
1347 void
1348 gossip_chat_present (GossipChat *chat)
1349 {
1350         GossipChatPriv *priv;
1351
1352         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1353
1354         priv = GET_PRIV (chat);
1355
1356         if (priv->window == NULL) {
1357                 GossipChatWindow *window;
1358
1359                 window = gossip_chat_window_get_default ();
1360                 if (!window) {
1361                         window = gossip_chat_window_new ();
1362                 }
1363
1364                 gossip_chat_window_add_chat (window, chat);
1365         }
1366
1367         gossip_chat_window_switch_to_chat (priv->window, chat);
1368         gossip_window_present (
1369                 GTK_WINDOW (gossip_chat_window_get_dialog (priv->window)),
1370                 TRUE);
1371
1372         gtk_widget_grab_focus (chat->input_text_view);
1373 }
1374
1375 gboolean
1376 gossip_chat_should_play_sound (GossipChat *chat)
1377 {
1378         GossipChatWindow *window;
1379         gboolean          play = TRUE;
1380
1381         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1382
1383         window = gossip_chat_get_window (chat);
1384         if (!window) {
1385                 return TRUE;
1386         }
1387
1388         play = !gossip_chat_window_has_focus (window);
1389
1390         return play;
1391 }
1392
1393 gboolean
1394 gossip_chat_should_highlight_nick (GossipMessage *message)
1395 {
1396         GossipContact *my_contact;
1397         const gchar   *msg, *to;
1398         gchar         *cf_msg, *cf_to;
1399         gchar         *ch;
1400         gboolean       ret_val;
1401
1402         g_return_val_if_fail (GOSSIP_IS_MESSAGE (message), FALSE);
1403
1404         gossip_debug (DEBUG_DOMAIN, "Highlighting nickname");
1405
1406         ret_val = FALSE;
1407
1408         msg = gossip_message_get_body (message);
1409         if (!msg) {
1410                 return FALSE;
1411         }
1412
1413         my_contact = gossip_get_own_contact_from_contact (gossip_message_get_sender (message));
1414         to = gossip_contact_get_name (my_contact);
1415         if (!to) {
1416                 return FALSE;
1417         }
1418
1419         cf_msg = g_utf8_casefold (msg, -1);
1420         cf_to = g_utf8_casefold (to, -1);
1421
1422         ch = strstr (cf_msg, cf_to);
1423         if (ch == NULL) {
1424                 goto finished;
1425         }
1426
1427         if (ch != cf_msg) {
1428                 /* Not first in the message */
1429                 if ((*(ch - 1) != ' ') &&
1430                     (*(ch - 1) != ',') &&
1431                     (*(ch - 1) != '.')) {
1432                         goto finished;
1433                 }
1434         }
1435
1436         ch = ch + strlen (cf_to);
1437         if (ch >= cf_msg + strlen (cf_msg)) {
1438                 ret_val = TRUE;
1439                 goto finished;
1440         }
1441
1442         if ((*ch == ' ') ||
1443             (*ch == ',') ||
1444             (*ch == '.') ||
1445             (*ch == ':')) {
1446                 ret_val = TRUE;
1447                 goto finished;
1448         }
1449
1450 finished:
1451         g_free (cf_msg);
1452         g_free (cf_to);
1453
1454         return ret_val;
1455 }
1456