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