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 #include <libempathy/empathy-marshal.h>
  43
  44 #include "gossip-chat.h"
  45 #include "gossip-chat-window.h"
  46 #include "gossip-geometry.h"
  47 #include "gossip-preferences.h"
  48 #include "gossip-spell.h"
  49 //#include "gossip-spell-dialog.h"
  50 #include "gossip-ui-utils.h"
  51
  52 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GOSSIP_TYPE_CHAT, GossipChatPriv))
  53
  54 #define DEBUG_DOMAIN "Chat"
  55
  56 #define CHAT_DIR_CREATE_MODE  (S_IRUSR | S_IWUSR | S_IXUSR)
  57 #define CHAT_FILE_CREATE_MODE (S_IRUSR | S_IWUSR)
  58
  59 #define IS_ENTER(v) (v == GDK_Return || v == GDK_ISO_Enter || v == GDK_KP_Enter)
  60
  61 #define MAX_INPUT_HEIGHT 150
  62
  63 #define COMPOSING_STOP_TIMEOUT 5
  64
  65 struct _GossipChatPriv {
  66         EmpathyContactManager *manager;
  67         EmpathyTpChat         *tp_chat;
  68         GossipChatWindow      *window;
  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         GList                 *compositors;
  76         /* Used to automatically shrink a window that has temporarily
  77          * grown due to long input.
  78          */
  79         gint                   padding_height;
  80         gint                   default_window_height;
  81         gint                   last_input_height;
  82         gboolean               vscroll_visible;
  83 };
  84
  85 typedef struct {
  86         GossipChat  *chat;
  87         gchar       *word;
  88
  89         GtkTextIter  start;
  90         GtkTextIter  end;
  91 } GossipChatSpell;
  92
  93 static void             gossip_chat_class_init            (GossipChatClass *klass);
  94 static void             gossip_chat_init                  (GossipChat      *chat);
  95 static void             chat_finalize                     (GObject         *object);
  96 static void             chat_destroy_cb                   (EmpathyTpChat   *tp_chat,
  97                                                            GossipChat      *chat);
  98 static void             chat_send                         (GossipChat      *chat,
  99                                                            const gchar     *msg);
 100 static void             chat_input_text_view_send         (GossipChat      *chat);
 101 static void             chat_message_received_cb          (EmpathyTpChat   *tp_chat,
 102                                                            GossipMessage   *message,
 103                                                            GossipChat      *chat);
 104 void                    chat_sent_message_add             (GossipChat      *chat,
 105                                                            const gchar     *str);
 106 const gchar *           chat_sent_message_get_next        (GossipChat      *chat);
 107 const gchar *           chat_sent_message_get_last        (GossipChat      *chat);
 108 static gboolean         chat_input_key_press_event_cb     (GtkWidget       *widget,
 109                                                            GdkEventKey     *event,
 110                                                            GossipChat      *chat);
 111 static void             chat_input_text_buffer_changed_cb (GtkTextBuffer   *buffer,
 112                                                            GossipChat      *chat);
 113 static gboolean         chat_text_view_focus_in_event_cb  (GtkWidget       *widget,
 114                                                            GdkEvent        *event,
 115                                                            GossipChat      *chat);
 116 static void             chat_text_view_scroll_hide_cb     (GtkWidget       *widget,
 117                                                            GossipChat      *chat);
 118 static void             chat_text_view_size_allocate_cb   (GtkWidget       *widget,
 119                                                            GtkAllocation   *allocation,
 120                                                            GossipChat      *chat);
 121 static void             chat_text_view_realize_cb         (GtkWidget       *widget,
 122                                                            GossipChat      *chat);
 123 static void             chat_text_populate_popup_cb       (GtkTextView     *view,
 124                                                            GtkMenu         *menu,
 125                                                            GossipChat      *chat);
 126 static void             chat_text_check_word_spelling_cb  (GtkMenuItem     *menuitem,
 127                                                            GossipChatSpell *chat_spell);
 128 static GossipChatSpell *chat_spell_new                    (GossipChat      *chat,
 129                                                            const gchar     *word,
 130                                                            GtkTextIter      start,
 131                                                            GtkTextIter      end);
 132 static void             chat_spell_free                   (GossipChatSpell *chat_spell);
 133 static void             chat_composing_start              (GossipChat      *chat);
 134 static void             chat_composing_stop               (GossipChat      *chat);
 135 static void             chat_composing_remove_timeout     (GossipChat      *chat);
 136 static gboolean         chat_composing_stop_timeout_cb    (GossipChat      *chat);
 137 static void             chat_state_changed_cb             (EmpathyTpChat   *tp_chat,
 138                                                            GossipContact   *contact,
 139                                                            TelepathyChannelChatState  state,
 140                                                            GossipChat      *chat);
 141
 142 enum {
 143         COMPOSING,
 144         NEW_MESSAGE,
 145         NAME_CHANGED,
 146         STATUS_CHANGED,
 147         LAST_SIGNAL
 148 };
 149
 150 static guint signals[LAST_SIGNAL] = { 0 };
 151
 152 G_DEFINE_TYPE (GossipChat, gossip_chat, G_TYPE_OBJECT);
 153
 154 static void
 155 gossip_chat_class_init (GossipChatClass *klass)
 156 {
 157         GObjectClass *object_class;
 158
 159         object_class = G_OBJECT_CLASS (klass);
 160
 161         object_class->finalize = chat_finalize;
 162
 163         signals[COMPOSING] =
 164                 g_signal_new ("composing",
 165                               G_OBJECT_CLASS_TYPE (object_class),
 166                               G_SIGNAL_RUN_LAST,
 167                               0,
 168                               NULL, NULL,
 169                               g_cclosure_marshal_VOID__BOOLEAN,
 170                               G_TYPE_NONE,
 171                               1, G_TYPE_BOOLEAN);
 172
 173         signals[NEW_MESSAGE] =
 174                 g_signal_new ("new-message",
 175                               G_OBJECT_CLASS_TYPE (object_class),
 176                               G_SIGNAL_RUN_LAST,
 177                               0,
 178                               NULL, NULL,
 179                               empathy_marshal_VOID__OBJECT_BOOLEAN,
 180                               G_TYPE_NONE,
 181                               2, GOSSIP_TYPE_MESSAGE, G_TYPE_BOOLEAN);
 182
 183         signals[NAME_CHANGED] =
 184                 g_signal_new ("name-changed",
 185                               G_OBJECT_CLASS_TYPE (object_class),
 186                               G_SIGNAL_RUN_LAST,
 187                               0,
 188                               NULL, NULL,
 189                               g_cclosure_marshal_VOID__POINTER,
 190                               G_TYPE_NONE,
 191                               1, G_TYPE_POINTER);
 192
 193         signals[STATUS_CHANGED] =
 194                 g_signal_new ("status-changed",
 195                               G_OBJECT_CLASS_TYPE (object_class),
 196                               G_SIGNAL_RUN_LAST,
 197                               0,
 198                               NULL, NULL,
 199                               g_cclosure_marshal_VOID__VOID,
 200                               G_TYPE_NONE,
 201                               0);
 202
 203         g_type_class_add_private (object_class, sizeof (GossipChatPriv));
 204 }
 205
 206 static void
 207 gossip_chat_init (GossipChat *chat)
 208 {
 209         GossipChatPriv *priv;
 210         GtkTextBuffer  *buffer;
 211
 212         chat->view = gossip_chat_view_new ();
 213         chat->input_text_view = gtk_text_view_new ();
 214
 215         chat->is_first_char = TRUE;
 216
 217         g_object_set (chat->input_text_view,
 218                       "pixels-above-lines", 2,
 219                       "pixels-below-lines", 2,
 220                       "pixels-inside-wrap", 1,
 221                       "right-margin", 2,
 222                       "left-margin", 2,
 223                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 224                       NULL);
 225
 226         priv = GET_PRIV (chat);
 227
 228         priv->manager = empathy_contact_manager_new ();
 229         priv->tooltips = gtk_tooltips_new ();
 230         priv->default_window_height = -1;
 231         priv->vscroll_visible = FALSE;
 232         priv->sensitive = TRUE;
 233         priv->sent_messages = NULL;
 234         priv->sent_messages_index = -1;
 235
 236         g_signal_connect (chat->input_text_view,
 237                           "key_press_event",
 238                           G_CALLBACK (chat_input_key_press_event_cb),
 239                           chat);
 240
 241         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 242         g_signal_connect (buffer,
 243                           "changed",
 244                           G_CALLBACK (chat_input_text_buffer_changed_cb),
 245                           chat);
 246         g_signal_connect (chat->view,
 247                           "focus_in_event",
 248                           G_CALLBACK (chat_text_view_focus_in_event_cb),
 249                           chat);
 250
 251         g_signal_connect (chat->input_text_view,
 252                           "size_allocate",
 253                           G_CALLBACK (chat_text_view_size_allocate_cb),
 254                           chat);
 255
 256         g_signal_connect (chat->input_text_view,
 257                           "realize",
 258                           G_CALLBACK (chat_text_view_realize_cb),
 259                           chat);
 260
 261         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
 262                           "populate_popup",
 263                           G_CALLBACK (chat_text_populate_popup_cb),
 264                           chat);
 265
 266         /* create misspelt words identification tag */
 267         gtk_text_buffer_create_tag (buffer,
 268                                     "misspelled",
 269                                     "underline", PANGO_UNDERLINE_ERROR,
 270                                     NULL);
 271 }
 272
 273 static void
 274 chat_finalize (GObject *object)
 275 {
 276         GossipChat     *chat;
 277         GossipChatPriv *priv;
 278
 279         chat = GOSSIP_CHAT (object);
 280         priv = GET_PRIV (chat);
 281
 282         gossip_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 283
 284         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 285         g_slist_free (priv->sent_messages);
 286
 287         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
 288         g_list_free (priv->compositors);
 289
 290         chat_composing_remove_timeout (chat);
 291         g_object_unref (chat->account);
 292         g_object_unref (priv->manager);
 293
 294         if (priv->tp_chat) {
 295                 g_object_unref (priv->tp_chat);
 296         }
 297
 298         g_free (priv->id);
 299
 300         G_OBJECT_CLASS (gossip_chat_parent_class)->finalize (object);
 301 }
 302
 303 static void
 304 chat_destroy_cb (EmpathyTpChat *tp_chat,
 305                  GossipChat    *chat)
 306 {
 307         GossipChatPriv *priv;
 308         GtkWidget      *widget;
 309
 310         priv = GET_PRIV (chat);
 311
 312         if (priv->tp_chat) {
 313                 g_object_unref (priv->tp_chat);
 314                 priv->tp_chat = NULL;
 315         }
 316
 317         gossip_chat_view_append_event (chat->view, _("Disconnected"));
 318
 319         widget = gossip_chat_get_widget (chat);
 320         gtk_widget_set_sensitive (widget, FALSE);
 321         priv->sensitive = FALSE;
 322 }
 323
 324 static void
 325 chat_send (GossipChat  *chat,
 326            const gchar *msg)
 327 {
 328         GossipChatPriv   *priv;
 329         //GossipLogManager *log_manager;
 330         GossipMessage    *message;
 331         GossipContact    *own_contact;
 332
 333         priv = GET_PRIV (chat);
 334
 335         if (G_STR_EMPTY (msg)) {
 336                 return;
 337         }
 338
 339         chat_sent_message_add (chat, msg);
 340
 341         if (g_str_has_prefix (msg, "/clear")) {
 342                 gossip_chat_view_clear (chat->view);
 343                 return;
 344         }
 345
 346         /* FIXME: gossip_app_set_not_away ();*/
 347
 348         own_contact = gossip_chat_get_own_contact (chat);
 349         message = gossip_message_new (msg);
 350         gossip_message_set_sender (message, own_contact);
 351
 352         //FIXME: log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 353         //gossip_log_message_for_contact (log_manager, message, FALSE);
 354
 355         empathy_tp_chat_send (priv->tp_chat, message);
 356
 357         g_object_unref (message);
 358 }
 359
 360 static void
 361 chat_input_text_view_send (GossipChat *chat)
 362 {
 363         GossipChatPriv *priv;
 364         GtkTextBuffer  *buffer;
 365         GtkTextIter     start, end;
 366         gchar          *msg;
 367
 368         priv = GET_PRIV (chat);
 369
 370         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 371
 372         gtk_text_buffer_get_bounds (buffer, &start, &end);
 373         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 374
 375         /* clear the input field */
 376         gtk_text_buffer_set_text (buffer, "", -1);
 377
 378         chat_send (chat, msg);
 379
 380         g_free (msg);
 381
 382         chat->is_first_char = TRUE;
 383 }
 384
 385 static void
 386 chat_message_received_cb (EmpathyTpChat *tp_chat,
 387                           GossipMessage *message,
 388                           GossipChat    *chat)
 389 {
 390         GossipChatPriv *priv;
 391         //GossipLogManager      *log_manager;
 392         GossipContact         *sender;
 393
 394         priv = GET_PRIV (chat);
 395
 396         sender = gossip_message_get_sender (message);
 397         gossip_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 398                       gossip_contact_get_name (sender));
 399
 400 /*FIXME:
 401         log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 402         gossip_log_message_for_contact (log_manager, message, TRUE);
 403 */
 404         gossip_chat_view_append_message (chat->view, message);
 405
 406         if (gossip_chat_should_play_sound (chat)) {
 407                 // FIXME: gossip_sound_play (GOSSIP_SOUND_CHAT);
 408         }
 409
 410         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 411 }
 412
 413 void
 414 chat_sent_message_add (GossipChat  *chat,
 415                        const gchar *str)
 416 {
 417         GossipChatPriv *priv;
 418         GSList         *list;
 419         GSList         *item;
 420
 421         priv = GET_PRIV (chat);
 422
 423         /* Save the sent message in our repeat buffer */
 424         list = priv->sent_messages;
 425
 426         /* Remove any other occurances of this msg */
 427         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 428                 list = g_slist_remove_link (list, item);
 429                 g_free (item->data);
 430                 g_slist_free1 (item);
 431         }
 432
 433         /* Trim the list to the last 10 items */
 434         while (g_slist_length (list) > 10) {
 435                 item = g_slist_last (list);
 436                 if (item) {
 437                         list = g_slist_remove_link (list, item);
 438                         g_free (item->data);
 439                         g_slist_free1 (item);
 440                 }
 441         }
 442
 443         /* Add new message */
 444         list = g_slist_prepend (list, g_strdup (str));
 445
 446         /* Set list and reset the index */
 447         priv->sent_messages = list;
 448         priv->sent_messages_index = -1;
 449 }
 450
 451 const gchar *
 452 chat_sent_message_get_next (GossipChat *chat)
 453 {
 454         GossipChatPriv *priv;
 455         gint            max;
 456
 457         priv = GET_PRIV (chat);
 458
 459         if (!priv->sent_messages) {
 460                 gossip_debug (DEBUG_DOMAIN,
 461                               "No sent messages, next message is NULL");
 462                 return NULL;
 463         }
 464
 465         max = g_slist_length (priv->sent_messages) - 1;
 466
 467         if (priv->sent_messages_index < max) {
 468                 priv->sent_messages_index++;
 469         }
 470
 471         gossip_debug (DEBUG_DOMAIN,
 472                       "Returning next message index:%d",
 473                       priv->sent_messages_index);
 474
 475         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 476 }
 477
 478 const gchar *
 479 chat_sent_message_get_last (GossipChat *chat)
 480 {
 481         GossipChatPriv *priv;
 482
 483         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
 484
 485         priv = GET_PRIV (chat);
 486
 487         if (!priv->sent_messages) {
 488                 gossip_debug (DEBUG_DOMAIN,
 489                               "No sent messages, last message is NULL");
 490                 return NULL;
 491         }
 492
 493         if (priv->sent_messages_index >= 0) {
 494                 priv->sent_messages_index--;
 495         }
 496
 497         gossip_debug (DEBUG_DOMAIN,
 498                       "Returning last message index:%d",
 499                       priv->sent_messages_index);
 500
 501         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 502 }
 503
 504 static gboolean
 505 chat_input_key_press_event_cb (GtkWidget   *widget,
 506                                GdkEventKey *event,
 507                                GossipChat  *chat)
 508 {
 509         GossipChatPriv *priv;
 510         GtkAdjustment  *adj;
 511         gdouble         val;
 512         GtkWidget      *text_view_sw;
 513
 514         priv = GET_PRIV (chat);
 515
 516         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 517                 return TRUE;
 518         }
 519
 520         /* Catch ctrl+up/down so we can traverse messages we sent */
 521         if ((event->state & GDK_CONTROL_MASK) &&
 522             (event->keyval == GDK_Up ||
 523              event->keyval == GDK_Down)) {
 524                 GtkTextBuffer *buffer;
 525                 const gchar   *str;
 526
 527                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 528
 529                 if (event->keyval == GDK_Up) {
 530                         str = chat_sent_message_get_next (chat);
 531                 } else {
 532                         str = chat_sent_message_get_last (chat);
 533                 }
 534
 535                 g_signal_handlers_block_by_func (buffer,
 536                                                  chat_input_text_buffer_changed_cb,
 537                                                  chat);
 538                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 539                 g_signal_handlers_unblock_by_func (buffer,
 540                                                    chat_input_text_buffer_changed_cb,
 541                                                    chat);
 542
 543                 return TRUE;
 544         }
 545
 546         /* Catch enter but not ctrl/shift-enter */
 547         if (IS_ENTER (event->keyval) && !(event->state & GDK_SHIFT_MASK)) {
 548                 GtkTextView *view;
 549
 550                 /* This is to make sure that kinput2 gets the enter. And if
 551                  * it's handled there we shouldn't send on it. This is because
 552                  * kinput2 uses Enter to commit letters. See:
 553                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 554                  */
 555
 556                 view = GTK_TEXT_VIEW (chat->input_text_view);
 557                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 558                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 559                         return TRUE;
 560                 }
 561
 562                 chat_input_text_view_send (chat);
 563                 return TRUE;
 564         }
 565
 566         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 567
 568         if (IS_ENTER (event->keyval) && (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 569                 /* Newline for shift-enter. */
 570                 return FALSE;
 571         }
 572         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 573                  event->keyval == GDK_Page_Up) {
 574                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 575                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 576
 577                 return TRUE;
 578         }
 579         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 580                  event->keyval == GDK_Page_Down) {
 581                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 582                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 583                 gtk_adjustment_set_value (adj, val);
 584
 585                 return TRUE;
 586         }
 587
 588         return FALSE;
 589 }
 590
 591 static gboolean
 592 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 593                                   GdkEvent   *event,
 594                                   GossipChat *chat)
 595 {
 596         gtk_widget_grab_focus (chat->input_text_view);
 597
 598         return TRUE;
 599 }
 600
 601 static void
 602 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 603                                    GossipChat    *chat)
 604 {
 605         GossipChatPriv *priv;
 606         GtkTextIter     start, end;
 607         gchar          *str;
 608         gboolean        spell_checker = FALSE;
 609
 610         priv = GET_PRIV (chat);
 611
 612         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 613                 chat_composing_stop (chat);
 614         } else {
 615                 chat_composing_start (chat);
 616         }
 617
 618         gossip_conf_get_bool (gossip_conf_get (),
 619                               GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 620                               &spell_checker);
 621
 622         if (chat->is_first_char) {
 623                 GtkRequisition  req;
 624                 gint            window_height;
 625                 GtkWidget      *dialog;
 626                 GtkAllocation  *allocation;
 627
 628                 /* Save the window's size */
 629                 dialog = gossip_chat_window_get_dialog (priv->window);
 630                 gtk_window_get_size (GTK_WINDOW (dialog),
 631                                      NULL, &window_height);
 632
 633                 gtk_widget_size_request (chat->input_text_view, &req);
 634
 635                 allocation = &GTK_WIDGET (chat->view)->allocation;
 636
 637                 priv->default_window_height = window_height;
 638                 priv->last_input_height = req.height;
 639                 priv->padding_height = window_height - req.height - allocation->height;
 640
 641                 chat->is_first_char = FALSE;
 642         }
 643
 644         gtk_text_buffer_get_start_iter (buffer, &start);
 645
 646         if (!spell_checker) {
 647                 gtk_text_buffer_get_end_iter (buffer, &end);
 648                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 649                 return;
 650         }
 651
 652         if (!gossip_spell_supported ()) {
 653                 return;
 654         }
 655
 656         /* NOTE: this is really inefficient, we shouldn't have to
 657            reiterate the whole buffer each time and check each work
 658            every time. */
 659         while (TRUE) {
 660                 gboolean correct = FALSE;
 661
 662                 /* if at start */
 663                 if (gtk_text_iter_is_start (&start)) {
 664                         end = start;
 665
 666                         if (!gtk_text_iter_forward_word_end (&end)) {
 667                                 /* no whole word yet */
 668                                 break;
 669                         }
 670                 } else {
 671                         if (!gtk_text_iter_forward_word_end (&end)) {
 672                                 /* must be the end of the buffer */
 673                                 break;
 674                         }
 675
 676                         start = end;
 677                         gtk_text_iter_backward_word_start (&start);
 678                 }
 679
 680                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 681
 682                 /* spell check string */
 683                 if (!gossip_chat_get_is_command (str)) {
 684                         correct = gossip_spell_check (str);
 685                 } else {
 686                         correct = TRUE;
 687                 }
 688
 689                 if (!correct) {
 690                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 691                 } else {
 692                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 693                 }
 694
 695                 g_free (str);
 696
 697                 /* set start iter to the end iters position */
 698                 start = end;
 699         }
 700 }
 701
 702 typedef struct {
 703         GtkWidget *window;
 704         gint       width;
 705         gint       height;
 706 } ChangeSizeData;
 707
 708 static gboolean
 709 chat_change_size_in_idle_cb (ChangeSizeData *data)
 710 {
 711         gtk_window_resize (GTK_WINDOW (data->window),
 712                            data->width, data->height);
 713
 714         return FALSE;
 715 }
 716
 717 static void
 718 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 719                                GossipChat *chat)
 720 {
 721         GossipChatPriv *priv;
 722         GtkWidget      *sw;
 723
 724         priv = GET_PRIV (chat);
 725
 726         priv->vscroll_visible = FALSE;
 727         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 728
 729         sw = gtk_widget_get_parent (chat->input_text_view);
 730         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 731                                         GTK_POLICY_NEVER,
 732                                         GTK_POLICY_NEVER);
 733         g_object_set (sw, "height-request", -1, NULL);
 734 }
 735
 736 static void
 737 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 738                                  GtkAllocation *allocation,
 739                                  GossipChat    *chat)
 740 {
 741         GossipChatPriv *priv;
 742         gint            width;
 743         GtkWidget      *dialog;
 744         ChangeSizeData *data;
 745         gint            window_height;
 746         gint            new_height;
 747         GtkAllocation  *view_allocation;
 748         gint            current_height;
 749         gint            diff;
 750         GtkWidget      *sw;
 751
 752         priv = GET_PRIV (chat);
 753
 754         if (priv->default_window_height <= 0) {
 755                 return;
 756         }
 757
 758         sw = gtk_widget_get_parent (widget);
 759         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 760                 GtkWidget *vscroll;
 761
 762                 priv->vscroll_visible = TRUE;
 763                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 764                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 765                                                 GTK_POLICY_NEVER,
 766                                                 GTK_POLICY_AUTOMATIC);
 767                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 768                 g_signal_connect (vscroll, "hide",
 769                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 770                                   chat);
 771         }
 772
 773         if (priv->last_input_height <= allocation->height) {
 774                 priv->last_input_height = allocation->height;
 775                 return;
 776         }
 777
 778         diff = priv->last_input_height - allocation->height;
 779         priv->last_input_height = allocation->height;
 780
 781         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 782
 783         dialog = gossip_chat_window_get_dialog (priv->window);
 784         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 785
 786         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 787
 788         if (new_height <= priv->default_window_height) {
 789                 window_height = priv->default_window_height;
 790         } else {
 791                 window_height = new_height;
 792         }
 793
 794         if (current_height <= window_height) {
 795                 return;
 796         }
 797
 798         /* Restore the window's size */
 799         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 800
 801         data = g_new0 (ChangeSizeData, 1);
 802         data->window = dialog;
 803         data->width  = width;
 804         data->height = window_height;
 805
 806         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 807                          (GSourceFunc) chat_change_size_in_idle_cb,
 808                          data, g_free);
 809 }
 810
 811 static void
 812 chat_text_view_realize_cb (GtkWidget  *widget,
 813                            GossipChat *chat)
 814 {
 815         gossip_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 816         gtk_widget_grab_focus (widget);
 817 }
 818
 819 static void
 820 chat_insert_smiley_activate_cb (GtkWidget  *menuitem,
 821                                 GossipChat *chat)
 822 {
 823         GtkTextBuffer *buffer;
 824         GtkTextIter    iter;
 825         const gchar   *smiley;
 826
 827         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 828
 829         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 830
 831         gtk_text_buffer_get_end_iter (buffer, &iter);
 832         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 833
 834         gtk_text_buffer_get_end_iter (buffer, &iter);
 835         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 836 }
 837
 838 static void
 839 chat_text_populate_popup_cb (GtkTextView *view,
 840                              GtkMenu     *menu,
 841                              GossipChat  *chat)
 842 {
 843         GossipChatPriv  *priv;
 844         GtkTextBuffer   *buffer;
 845         GtkTextTagTable *table;
 846         GtkTextTag      *tag;
 847         gint             x, y;
 848         GtkTextIter      iter, start, end;
 849         GtkWidget       *item;
 850         gchar           *str = NULL;
 851         GossipChatSpell *chat_spell;
 852         GtkWidget       *smiley_menu;
 853
 854         priv = GET_PRIV (chat);
 855
 856         /* Add the emoticon menu. */
 857         item = gtk_separator_menu_item_new ();
 858         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 859         gtk_widget_show (item);
 860
 861         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 862         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 863         gtk_widget_show (item);
 864
 865         smiley_menu = gossip_chat_view_get_smiley_menu (
 866                 G_CALLBACK (chat_insert_smiley_activate_cb),
 867                 chat,
 868                 priv->tooltips);
 869         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 870
 871         /* Add the spell check menu item. */
 872         buffer = gtk_text_view_get_buffer (view);
 873         table = gtk_text_buffer_get_tag_table (buffer);
 874
 875         tag = gtk_text_tag_table_lookup (table, "misspelled");
 876
 877         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 878
 879         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 880                                                GTK_TEXT_WINDOW_WIDGET,
 881                                                x, y,
 882                                                &x, &y);
 883
 884         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 885
 886         start = end = iter;
 887
 888         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 889             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 890
 891                 str = gtk_text_buffer_get_text (buffer,
 892                                                 &start, &end, FALSE);
 893         }
 894
 895         if (G_STR_EMPTY (str)) {
 896                 return;
 897         }
 898
 899         chat_spell = chat_spell_new (chat, str, start, end);
 900
 901         g_object_set_data_full (G_OBJECT (menu),
 902                                 "chat_spell", chat_spell,
 903                                 (GDestroyNotify) chat_spell_free);
 904
 905         item = gtk_separator_menu_item_new ();
 906         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 907         gtk_widget_show (item);
 908
 909         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 910         g_signal_connect (item,
 911                           "activate",
 912                           G_CALLBACK (chat_text_check_word_spelling_cb),
 913                           chat_spell);
 914         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 915         gtk_widget_show (item);
 916 }
 917
 918 static void
 919 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 920                                   GossipChatSpell *chat_spell)
 921 {
 922 /*FIXME:        gossip_spell_dialog_show (chat_spell->chat,
 923                                   chat_spell->start,
 924                                   chat_spell->end,
 925                                   chat_spell->word);*/
 926 }
 927
 928 static GossipChatSpell *
 929 chat_spell_new (GossipChat  *chat,
 930                 const gchar *word,
 931                 GtkTextIter  start,
 932                 GtkTextIter  end)
 933 {
 934         GossipChatSpell *chat_spell;
 935
 936         chat_spell = g_new0 (GossipChatSpell, 1);
 937
 938         chat_spell->chat = g_object_ref (chat);
 939         chat_spell->word = g_strdup (word);
 940         chat_spell->start = start;
 941         chat_spell->end = end;
 942
 943         return chat_spell;
 944 }
 945
 946 static void
 947 chat_spell_free (GossipChatSpell *chat_spell)
 948 {
 949         g_object_unref (chat_spell->chat);
 950         g_free (chat_spell->word);
 951         g_free (chat_spell);
 952 }
 953
 954 static void
 955 chat_composing_start (GossipChat *chat)
 956 {
 957         GossipChatPriv *priv;
 958
 959         priv = GET_PRIV (chat);
 960
 961         if (priv->composing_stop_timeout_id) {
 962                 /* Just restart the timeout */
 963                 chat_composing_remove_timeout (chat);
 964         } else {
 965                 empathy_tp_chat_set_state (priv->tp_chat,
 966                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
 967         }
 968
 969         priv->composing_stop_timeout_id = g_timeout_add (
 970                 1000 * COMPOSING_STOP_TIMEOUT,
 971                 (GSourceFunc) chat_composing_stop_timeout_cb,
 972                 chat);
 973 }
 974
 975 static void
 976 chat_composing_stop (GossipChat *chat)
 977 {
 978         GossipChatPriv *priv;
 979
 980         priv = GET_PRIV (chat);
 981
 982         chat_composing_remove_timeout (chat);
 983         empathy_tp_chat_set_state (priv->tp_chat,
 984                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
 985 }
 986
 987 static void
 988 chat_composing_remove_timeout (GossipChat *chat)
 989 {
 990         GossipChatPriv *priv;
 991
 992         priv = GET_PRIV (chat);
 993
 994         if (priv->composing_stop_timeout_id) {
 995                 g_source_remove (priv->composing_stop_timeout_id);
 996                 priv->composing_stop_timeout_id = 0;
 997         }
 998 }
 999
1000 static gboolean
1001 chat_composing_stop_timeout_cb (GossipChat *chat)
1002 {
1003         GossipChatPriv *priv;
1004
1005         priv = GET_PRIV (chat);
1006
1007         priv->composing_stop_timeout_id = 0;
1008         empathy_tp_chat_set_state (priv->tp_chat,
1009                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1010
1011         return FALSE;
1012 }
1013
1014 static void
1015 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1016                        GossipContact             *contact,
1017                        TelepathyChannelChatState  state,
1018                        GossipChat                *chat)
1019 {
1020         GossipChatPriv *priv;
1021         GList          *l;
1022         gboolean        was_composing;
1023
1024         priv = GET_PRIV (chat);
1025
1026         was_composing = (priv->compositors != NULL);
1027
1028         /* Find the contact in the list. After that l is the list elem or NULL */
1029         for (l = priv->compositors; l; l = l->next) {
1030                 if (gossip_contact_equal (contact, l->data)) {
1031                         break;
1032                 }
1033         }
1034
1035         switch (state) {
1036         case TP_CHANNEL_CHAT_STATE_GONE:
1037         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1038         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1039                 /* Contact is not composing */
1040                 if (l) {
1041                         priv->compositors = g_list_remove_link (priv->compositors, l);
1042                         g_object_unref (l->data);
1043                         g_list_free1 (l);
1044                 }
1045                 break;
1046         case TP_CHANNEL_CHAT_STATE_PAUSED:
1047         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1048                 /* Contact is composing */
1049                 if (!l) {
1050                         priv->compositors = g_list_prepend (priv->compositors,
1051                                                             g_object_ref (contact));
1052                 }
1053                 break;
1054         default:
1055                 g_assert_not_reached ();
1056         }
1057
1058         gossip_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1059                       was_composing ? "yes" : "no",
1060                       priv->compositors ? "yes" : "no");
1061
1062         if ((was_composing && !priv->compositors) ||
1063             (!was_composing && priv->compositors)) {
1064                 /* Composing state changed */
1065                 g_signal_emit (chat, signals[COMPOSING], 0,
1066                                (gboolean) priv->compositors);
1067         }
1068 }
1069
1070 gboolean
1071 gossip_chat_get_is_command (const gchar *str)
1072 {
1073         g_return_val_if_fail (str != NULL, FALSE);
1074
1075         if (str[0] != '/') {
1076                 return FALSE;
1077         }
1078
1079         if (g_str_has_prefix (str, "/me")) {
1080                 return TRUE;
1081         }
1082         else if (g_str_has_prefix (str, "/nick")) {
1083                 return TRUE;
1084         }
1085         else if (g_str_has_prefix (str, "/topic")) {
1086                 return TRUE;
1087         }
1088
1089         return FALSE;
1090 }
1091
1092 void
1093 gossip_chat_correct_word (GossipChat  *chat,
1094                           GtkTextIter  start,
1095                           GtkTextIter  end,
1096                           const gchar *new_word)
1097 {
1098         GtkTextBuffer *buffer;
1099
1100         g_return_if_fail (chat != NULL);
1101         g_return_if_fail (new_word != NULL);
1102
1103         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1104
1105         gtk_text_buffer_delete (buffer, &start, &end);
1106         gtk_text_buffer_insert (buffer, &start,
1107                                 new_word,
1108                                 -1);
1109 }
1110
1111 const gchar *
1112 gossip_chat_get_name (GossipChat *chat)
1113 {
1114         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1115
1116         if (GOSSIP_CHAT_GET_CLASS (chat)->get_name) {
1117                 return GOSSIP_CHAT_GET_CLASS (chat)->get_name (chat);
1118         }
1119
1120         return NULL;
1121 }
1122
1123 gchar *
1124 gossip_chat_get_tooltip (GossipChat *chat)
1125 {
1126         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1127
1128         if (GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip) {
1129                 return GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1130         }
1131
1132         return NULL;
1133 }
1134
1135 const gchar *
1136 gossip_chat_get_status_icon_name (GossipChat *chat)
1137 {
1138         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1139
1140         if (GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1141                 return GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1142         }
1143
1144         return NULL;
1145 }
1146
1147 GossipContact *
1148 gossip_chat_get_contact (GossipChat *chat)
1149 {
1150         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1151
1152         if (GOSSIP_CHAT_GET_CLASS (chat)->get_contact) {
1153                 return GOSSIP_CHAT_GET_CLASS (chat)->get_contact (chat);
1154         }
1155
1156         return NULL;
1157 }
1158 GossipContact *
1159 gossip_chat_get_own_contact (GossipChat *chat)
1160 {
1161         GossipChatPriv *priv;
1162
1163         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1164
1165         priv = GET_PRIV (chat);
1166
1167         return empathy_contact_manager_get_own (priv->manager, chat->account);
1168 }
1169
1170 GtkWidget *
1171 gossip_chat_get_widget (GossipChat *chat)
1172 {
1173         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1174
1175         if (GOSSIP_CHAT_GET_CLASS (chat)->get_widget) {
1176                 return GOSSIP_CHAT_GET_CLASS (chat)->get_widget (chat);
1177         }
1178
1179         return NULL;
1180 }
1181
1182 gboolean
1183 gossip_chat_is_group_chat (GossipChat *chat)
1184 {
1185         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1186
1187         if (GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat) {
1188                 return GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1189         }
1190
1191         return FALSE;
1192 }
1193
1194 gboolean
1195 gossip_chat_is_connected (GossipChat *chat)
1196 {
1197         GossipChatPriv *priv;
1198
1199         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1200
1201         priv = GET_PRIV (chat);
1202
1203         return (priv->tp_chat != NULL);
1204 }
1205
1206 gboolean
1207 gossip_chat_get_show_contacts (GossipChat *chat)
1208 {
1209         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1210
1211         if (GOSSIP_CHAT_GET_CLASS (chat)->get_show_contacts) {
1212                 return GOSSIP_CHAT_GET_CLASS (chat)->get_show_contacts (chat);
1213         }
1214
1215         return FALSE;
1216 }
1217
1218 void
1219 gossip_chat_set_show_contacts (GossipChat *chat,
1220                                gboolean    show)
1221 {
1222         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1223
1224         if (GOSSIP_CHAT_GET_CLASS (chat)->set_show_contacts) {
1225                 GOSSIP_CHAT_GET_CLASS (chat)->set_show_contacts (chat, show);
1226         }
1227 }
1228
1229 void
1230 gossip_chat_save_geometry (GossipChat *chat,
1231                            gint        x,
1232                            gint        y,
1233                            gint        w,
1234                            gint        h)
1235 {
1236         gossip_geometry_save (gossip_chat_get_id (chat), x, y, w, h);
1237 }
1238
1239 void
1240 gossip_chat_load_geometry (GossipChat *chat,
1241                            gint       *x,
1242                            gint       *y,
1243                            gint       *w,
1244                            gint       *h)
1245 {
1246         gossip_geometry_load (gossip_chat_get_id (chat), x, y, w, h);
1247 }
1248
1249 void
1250 gossip_chat_set_tp_chat (GossipChat    *chat,
1251                          EmpathyTpChat *tp_chat)
1252 {
1253         GossipChatPriv *priv;
1254         GtkWidget      *widget;
1255
1256         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1257         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1258
1259         priv = GET_PRIV (chat);
1260
1261         if (tp_chat == priv->tp_chat) {
1262                 return;
1263         }
1264
1265         if (priv->tp_chat) {
1266                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1267                                                       chat_message_received_cb,
1268                                                       chat);
1269                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1270                                                       chat_destroy_cb,
1271                                                       chat);
1272                 g_object_unref (priv->tp_chat);
1273         }
1274
1275         g_free (priv->id);
1276         priv->tp_chat = g_object_ref (tp_chat);
1277         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1278
1279         g_signal_connect (tp_chat, "message-received",
1280                           G_CALLBACK (chat_message_received_cb),
1281                           chat);
1282         g_signal_connect (tp_chat, "chat-state-changed",
1283                           G_CALLBACK (chat_state_changed_cb),
1284                           chat);
1285         g_signal_connect (tp_chat, "destroy",
1286                           G_CALLBACK (chat_destroy_cb),
1287                           chat);
1288
1289         empathy_tp_chat_request_pending (tp_chat);
1290
1291         if (!priv->sensitive) {
1292                 widget = gossip_chat_get_widget (chat);
1293                 gtk_widget_set_sensitive (widget, TRUE);
1294                 gossip_chat_view_append_event (chat->view, _("Connected"));
1295                 priv->sensitive = TRUE;
1296         }
1297 }
1298
1299 const gchar *
1300 gossip_chat_get_id (GossipChat *chat)
1301 {
1302         GossipChatPriv *priv;
1303
1304         priv = GET_PRIV (chat);
1305
1306         return priv->id;
1307 }
1308
1309 void
1310 gossip_chat_clear (GossipChat *chat)
1311 {
1312         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1313
1314         gossip_chat_view_clear (chat->view);
1315 }
1316
1317 void
1318 gossip_chat_set_window (GossipChat       *chat,
1319                         GossipChatWindow *window)
1320 {
1321         GossipChatPriv *priv;
1322
1323         priv = GET_PRIV (chat);
1324         priv->window = window;
1325 }
1326
1327 GossipChatWindow *
1328 gossip_chat_get_window (GossipChat *chat)
1329 {
1330         GossipChatPriv *priv;
1331
1332         priv = GET_PRIV (chat);
1333
1334         return priv->window;
1335 }
1336
1337 void
1338 gossip_chat_scroll_down (GossipChat *chat)
1339 {
1340         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1341
1342         gossip_chat_view_scroll_down (chat->view);
1343 }
1344
1345 void
1346 gossip_chat_cut (GossipChat *chat)
1347 {
1348         GtkTextBuffer *buffer;
1349
1350         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1351
1352         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1353         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1354                 GtkClipboard *clipboard;
1355
1356                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1357
1358                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1359         }
1360 }
1361
1362 void
1363 gossip_chat_copy (GossipChat *chat)
1364 {
1365         GtkTextBuffer *buffer;
1366
1367         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1368
1369         if (gossip_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1370                 gossip_chat_view_copy_clipboard (chat->view);
1371                 return;
1372         }
1373
1374         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1375         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1376                 GtkClipboard *clipboard;
1377
1378                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1379
1380                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1381         }
1382 }
1383
1384 void
1385 gossip_chat_paste (GossipChat *chat)
1386 {
1387         GtkTextBuffer *buffer;
1388         GtkClipboard  *clipboard;
1389
1390         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1391
1392         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1393         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1394
1395         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1396 }
1397
1398 void
1399 gossip_chat_present (GossipChat *chat)
1400 {
1401         GossipChatPriv *priv;
1402
1403         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1404
1405         priv = GET_PRIV (chat);
1406
1407         if (priv->window == NULL) {
1408                 GossipChatWindow *window;
1409
1410                 window = gossip_chat_window_get_default ();
1411                 if (!window) {
1412                         window = gossip_chat_window_new ();
1413                 }
1414
1415                 gossip_chat_window_add_chat (window, chat);
1416         }
1417
1418         gossip_chat_window_switch_to_chat (priv->window, chat);
1419         gossip_window_present (
1420                 GTK_WINDOW (gossip_chat_window_get_dialog (priv->window)),
1421                 TRUE);
1422
1423         gtk_widget_grab_focus (chat->input_text_view);
1424 }
1425
1426 gboolean
1427 gossip_chat_should_play_sound (GossipChat *chat)
1428 {
1429         GossipChatWindow *window;
1430         gboolean          play = TRUE;
1431
1432         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1433
1434         window = gossip_chat_get_window (chat);
1435         if (!window) {
1436                 return TRUE;
1437         }
1438
1439         play = !gossip_chat_window_has_focus (window);
1440
1441         return play;
1442 }
1443
1444 gboolean
1445 gossip_chat_should_highlight_nick (GossipMessage *message)
1446 {
1447         GossipContact *my_contact;
1448         const gchar   *msg, *to;
1449         gchar         *cf_msg, *cf_to;
1450         gchar         *ch;
1451         gboolean       ret_val;
1452
1453         g_return_val_if_fail (GOSSIP_IS_MESSAGE (message), FALSE);
1454
1455         gossip_debug (DEBUG_DOMAIN, "Highlighting nickname");
1456
1457         ret_val = FALSE;
1458
1459         msg = gossip_message_get_body (message);
1460         if (!msg) {
1461                 return FALSE;
1462         }
1463
1464         my_contact = gossip_get_own_contact_from_contact (gossip_message_get_sender (message));
1465         to = gossip_contact_get_name (my_contact);
1466         if (!to) {
1467                 return FALSE;
1468         }
1469
1470         cf_msg = g_utf8_casefold (msg, -1);
1471         cf_to = g_utf8_casefold (to, -1);
1472
1473         ch = strstr (cf_msg, cf_to);
1474         if (ch == NULL) {
1475                 goto finished;
1476         }
1477
1478         if (ch != cf_msg) {
1479                 /* Not first in the message */
1480                 if ((*(ch - 1) != ' ') &&
1481                     (*(ch - 1) != ',') &&
1482                     (*(ch - 1) != '.')) {
1483                         goto finished;
1484                 }
1485         }
1486
1487         ch = ch + strlen (cf_to);
1488         if (ch >= cf_msg + strlen (cf_msg)) {
1489                 ret_val = TRUE;
1490                 goto finished;
1491         }
1492
1493         if ((*ch == ' ') ||
1494             (*ch == ',') ||
1495             (*ch == '.') ||
1496             (*ch == ':')) {
1497                 ret_val = TRUE;
1498                 goto finished;
1499         }
1500
1501 finished:
1502         g_free (cf_msg);
1503         g_free (cf_to);
1504
1505         return ret_val;
1506 }
1507