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
 347         priv = GET_PRIV (chat);
 348
 349         if (G_STR_EMPTY (msg)) {
 350                 return;
 351         }
 352
 353         chat_sent_message_add (chat, msg);
 354
 355         if (g_str_has_prefix (msg, "/clear")) {
 356                 gossip_chat_view_clear (chat->view);
 357                 return;
 358         }
 359
 360         /* FIXME: add here something to let group/privrate chat handle
 361          *        some special messages */
 362
 363         message = gossip_message_new (msg);
 364
 365         empathy_tp_chat_send (priv->tp_chat, message);
 366
 367         g_object_unref (message);
 368 }
 369
 370 static void
 371 chat_input_text_view_send (GossipChat *chat)
 372 {
 373         GossipChatPriv *priv;
 374         GtkTextBuffer  *buffer;
 375         GtkTextIter     start, end;
 376         gchar          *msg;
 377
 378         priv = GET_PRIV (chat);
 379
 380         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 381
 382         gtk_text_buffer_get_bounds (buffer, &start, &end);
 383         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 384
 385         /* clear the input field */
 386         gtk_text_buffer_set_text (buffer, "", -1);
 387
 388         chat_send (chat, msg);
 389
 390         g_free (msg);
 391
 392         chat->is_first_char = TRUE;
 393 }
 394
 395 static void
 396 chat_message_received_cb (EmpathyTpChat *tp_chat,
 397                           GossipMessage *message,
 398                           GossipChat    *chat)
 399 {
 400         GossipChatPriv *priv;
 401         GossipContact  *sender;
 402         GossipTime      timestamp;
 403
 404         priv = GET_PRIV (chat);
 405
 406         sender = gossip_message_get_sender (message);
 407         gossip_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 408                       gossip_contact_get_name (sender));
 409
 410         /* Log the message only if it's not backlog */
 411         timestamp = gossip_message_get_timestamp (message);
 412         if (timestamp >= priv->time_joined) {
 413                 empathy_log_manager_add_message (priv->log_manager,
 414                                                  gossip_chat_get_id (chat),
 415                                                  gossip_chat_is_group_chat (chat),
 416                                                  message);
 417         }
 418
 419         gossip_chat_view_append_message (chat->view, message);
 420
 421         if (gossip_chat_should_play_sound (chat)) {
 422                 // FIXME: gossip_sound_play (GOSSIP_SOUND_CHAT);
 423         }
 424
 425         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 426 }
 427
 428 void
 429 chat_sent_message_add (GossipChat  *chat,
 430                        const gchar *str)
 431 {
 432         GossipChatPriv *priv;
 433         GSList         *list;
 434         GSList         *item;
 435
 436         priv = GET_PRIV (chat);
 437
 438         /* Save the sent message in our repeat buffer */
 439         list = priv->sent_messages;
 440
 441         /* Remove any other occurances of this msg */
 442         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 443                 list = g_slist_remove_link (list, item);
 444                 g_free (item->data);
 445                 g_slist_free1 (item);
 446         }
 447
 448         /* Trim the list to the last 10 items */
 449         while (g_slist_length (list) > 10) {
 450                 item = g_slist_last (list);
 451                 if (item) {
 452                         list = g_slist_remove_link (list, item);
 453                         g_free (item->data);
 454                         g_slist_free1 (item);
 455                 }
 456         }
 457
 458         /* Add new message */
 459         list = g_slist_prepend (list, g_strdup (str));
 460
 461         /* Set list and reset the index */
 462         priv->sent_messages = list;
 463         priv->sent_messages_index = -1;
 464 }
 465
 466 const gchar *
 467 chat_sent_message_get_next (GossipChat *chat)
 468 {
 469         GossipChatPriv *priv;
 470         gint            max;
 471
 472         priv = GET_PRIV (chat);
 473
 474         if (!priv->sent_messages) {
 475                 gossip_debug (DEBUG_DOMAIN,
 476                               "No sent messages, next message is NULL");
 477                 return NULL;
 478         }
 479
 480         max = g_slist_length (priv->sent_messages) - 1;
 481
 482         if (priv->sent_messages_index < max) {
 483                 priv->sent_messages_index++;
 484         }
 485
 486         gossip_debug (DEBUG_DOMAIN,
 487                       "Returning next message index:%d",
 488                       priv->sent_messages_index);
 489
 490         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 491 }
 492
 493 const gchar *
 494 chat_sent_message_get_last (GossipChat *chat)
 495 {
 496         GossipChatPriv *priv;
 497
 498         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
 499
 500         priv = GET_PRIV (chat);
 501
 502         if (!priv->sent_messages) {
 503                 gossip_debug (DEBUG_DOMAIN,
 504                               "No sent messages, last message is NULL");
 505                 return NULL;
 506         }
 507
 508         if (priv->sent_messages_index >= 0) {
 509                 priv->sent_messages_index--;
 510         }
 511
 512         gossip_debug (DEBUG_DOMAIN,
 513                       "Returning last message index:%d",
 514                       priv->sent_messages_index);
 515
 516         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 517 }
 518
 519 static gboolean
 520 chat_input_key_press_event_cb (GtkWidget   *widget,
 521                                GdkEventKey *event,
 522                                GossipChat  *chat)
 523 {
 524         GossipChatPriv *priv;
 525         GtkAdjustment  *adj;
 526         gdouble         val;
 527         GtkWidget      *text_view_sw;
 528
 529         priv = GET_PRIV (chat);
 530
 531         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 532                 return TRUE;
 533         }
 534
 535         /* Catch ctrl+up/down so we can traverse messages we sent */
 536         if ((event->state & GDK_CONTROL_MASK) &&
 537             (event->keyval == GDK_Up ||
 538              event->keyval == GDK_Down)) {
 539                 GtkTextBuffer *buffer;
 540                 const gchar   *str;
 541
 542                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 543
 544                 if (event->keyval == GDK_Up) {
 545                         str = chat_sent_message_get_next (chat);
 546                 } else {
 547                         str = chat_sent_message_get_last (chat);
 548                 }
 549
 550                 g_signal_handlers_block_by_func (buffer,
 551                                                  chat_input_text_buffer_changed_cb,
 552                                                  chat);
 553                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 554                 g_signal_handlers_unblock_by_func (buffer,
 555                                                    chat_input_text_buffer_changed_cb,
 556                                                    chat);
 557
 558                 return TRUE;
 559         }
 560
 561         /* Catch enter but not ctrl/shift-enter */
 562         if (IS_ENTER (event->keyval) && !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 563                 GtkTextView *view;
 564
 565                 /* This is to make sure that kinput2 gets the enter. And if
 566                  * it's handled there we shouldn't send on it. This is because
 567                  * kinput2 uses Enter to commit letters. See:
 568                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 569                  */
 570
 571                 view = GTK_TEXT_VIEW (chat->input_text_view);
 572                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 573                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 574                         return TRUE;
 575                 }
 576
 577                 chat_input_text_view_send (chat);
 578                 return TRUE;
 579         }
 580
 581         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 582
 583         if (IS_ENTER (event->keyval) && (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 584                 /* Newline for shift-enter. */
 585                 return FALSE;
 586         }
 587         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 588                  event->keyval == GDK_Page_Up) {
 589                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 590                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 591
 592                 return TRUE;
 593         }
 594         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 595                  event->keyval == GDK_Page_Down) {
 596                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 597                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 598                 gtk_adjustment_set_value (adj, val);
 599
 600                 return TRUE;
 601         }
 602
 603         return FALSE;
 604 }
 605
 606 static gboolean
 607 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 608                                   GdkEvent   *event,
 609                                   GossipChat *chat)
 610 {
 611         gtk_widget_grab_focus (chat->input_text_view);
 612
 613         return TRUE;
 614 }
 615
 616 static void
 617 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 618                                    GossipChat    *chat)
 619 {
 620         GossipChatPriv *priv;
 621         GtkTextIter     start, end;
 622         gchar          *str;
 623         gboolean        spell_checker = FALSE;
 624
 625         priv = GET_PRIV (chat);
 626
 627         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 628                 chat_composing_stop (chat);
 629         } else {
 630                 chat_composing_start (chat);
 631         }
 632
 633         gossip_conf_get_bool (gossip_conf_get (),
 634                               GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 635                               &spell_checker);
 636
 637         if (chat->is_first_char) {
 638                 GtkRequisition  req;
 639                 gint            window_height;
 640                 GtkWidget      *dialog;
 641                 GtkAllocation  *allocation;
 642
 643                 /* Save the window's size */
 644                 dialog = gossip_chat_window_get_dialog (priv->window);
 645                 gtk_window_get_size (GTK_WINDOW (dialog),
 646                                      NULL, &window_height);
 647
 648                 gtk_widget_size_request (chat->input_text_view, &req);
 649
 650                 allocation = &GTK_WIDGET (chat->view)->allocation;
 651
 652                 priv->default_window_height = window_height;
 653                 priv->last_input_height = req.height;
 654                 priv->padding_height = window_height - req.height - allocation->height;
 655
 656                 chat->is_first_char = FALSE;
 657         }
 658
 659         gtk_text_buffer_get_start_iter (buffer, &start);
 660
 661         if (!spell_checker) {
 662                 gtk_text_buffer_get_end_iter (buffer, &end);
 663                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 664                 return;
 665         }
 666
 667         if (!gossip_spell_supported ()) {
 668                 return;
 669         }
 670
 671         /* NOTE: this is really inefficient, we shouldn't have to
 672            reiterate the whole buffer each time and check each work
 673            every time. */
 674         while (TRUE) {
 675                 gboolean correct = FALSE;
 676
 677                 /* if at start */
 678                 if (gtk_text_iter_is_start (&start)) {
 679                         end = start;
 680
 681                         if (!gtk_text_iter_forward_word_end (&end)) {
 682                                 /* no whole word yet */
 683                                 break;
 684                         }
 685                 } else {
 686                         if (!gtk_text_iter_forward_word_end (&end)) {
 687                                 /* must be the end of the buffer */
 688                                 break;
 689                         }
 690
 691                         start = end;
 692                         gtk_text_iter_backward_word_start (&start);
 693                 }
 694
 695                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 696
 697                 /* spell check string */
 698                 if (!gossip_chat_get_is_command (str)) {
 699                         correct = gossip_spell_check (str);
 700                 } else {
 701                         correct = TRUE;
 702                 }
 703
 704                 if (!correct) {
 705                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 706                 } else {
 707                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 708                 }
 709
 710                 g_free (str);
 711
 712                 /* set start iter to the end iters position */
 713                 start = end;
 714         }
 715 }
 716
 717 typedef struct {
 718         GtkWidget *window;
 719         gint       width;
 720         gint       height;
 721 } ChangeSizeData;
 722
 723 static gboolean
 724 chat_change_size_in_idle_cb (ChangeSizeData *data)
 725 {
 726         gtk_window_resize (GTK_WINDOW (data->window),
 727                            data->width, data->height);
 728
 729         return FALSE;
 730 }
 731
 732 static void
 733 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 734                                GossipChat *chat)
 735 {
 736         GossipChatPriv *priv;
 737         GtkWidget      *sw;
 738
 739         priv = GET_PRIV (chat);
 740
 741         priv->vscroll_visible = FALSE;
 742         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 743
 744         sw = gtk_widget_get_parent (chat->input_text_view);
 745         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 746                                         GTK_POLICY_NEVER,
 747                                         GTK_POLICY_NEVER);
 748         g_object_set (sw, "height-request", -1, NULL);
 749 }
 750
 751 static void
 752 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 753                                  GtkAllocation *allocation,
 754                                  GossipChat    *chat)
 755 {
 756         GossipChatPriv *priv;
 757         gint            width;
 758         GtkWidget      *dialog;
 759         ChangeSizeData *data;
 760         gint            window_height;
 761         gint            new_height;
 762         GtkAllocation  *view_allocation;
 763         gint            current_height;
 764         gint            diff;
 765         GtkWidget      *sw;
 766
 767         priv = GET_PRIV (chat);
 768
 769         if (priv->default_window_height <= 0) {
 770                 return;
 771         }
 772
 773         sw = gtk_widget_get_parent (widget);
 774         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 775                 GtkWidget *vscroll;
 776
 777                 priv->vscroll_visible = TRUE;
 778                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 779                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 780                                                 GTK_POLICY_NEVER,
 781                                                 GTK_POLICY_AUTOMATIC);
 782                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 783                 g_signal_connect (vscroll, "hide",
 784                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 785                                   chat);
 786         }
 787
 788         if (priv->last_input_height <= allocation->height) {
 789                 priv->last_input_height = allocation->height;
 790                 return;
 791         }
 792
 793         diff = priv->last_input_height - allocation->height;
 794         priv->last_input_height = allocation->height;
 795
 796         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 797
 798         dialog = gossip_chat_window_get_dialog (priv->window);
 799         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 800
 801         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 802
 803         if (new_height <= priv->default_window_height) {
 804                 window_height = priv->default_window_height;
 805         } else {
 806                 window_height = new_height;
 807         }
 808
 809         if (current_height <= window_height) {
 810                 return;
 811         }
 812
 813         /* Restore the window's size */
 814         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 815
 816         data = g_new0 (ChangeSizeData, 1);
 817         data->window = dialog;
 818         data->width  = width;
 819         data->height = window_height;
 820
 821         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 822                          (GSourceFunc) chat_change_size_in_idle_cb,
 823                          data, g_free);
 824 }
 825
 826 static void
 827 chat_text_view_realize_cb (GtkWidget  *widget,
 828                            GossipChat *chat)
 829 {
 830         gossip_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 831         gtk_widget_grab_focus (widget);
 832 }
 833
 834 static void
 835 chat_insert_smiley_activate_cb (GtkWidget  *menuitem,
 836                                 GossipChat *chat)
 837 {
 838         GtkTextBuffer *buffer;
 839         GtkTextIter    iter;
 840         const gchar   *smiley;
 841
 842         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 843
 844         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 845
 846         gtk_text_buffer_get_end_iter (buffer, &iter);
 847         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 848
 849         gtk_text_buffer_get_end_iter (buffer, &iter);
 850         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 851 }
 852
 853 static void
 854 chat_text_populate_popup_cb (GtkTextView *view,
 855                              GtkMenu     *menu,
 856                              GossipChat  *chat)
 857 {
 858         GossipChatPriv  *priv;
 859         GtkTextBuffer   *buffer;
 860         GtkTextTagTable *table;
 861         GtkTextTag      *tag;
 862         gint             x, y;
 863         GtkTextIter      iter, start, end;
 864         GtkWidget       *item;
 865         gchar           *str = NULL;
 866         GossipChatSpell *chat_spell;
 867         GtkWidget       *smiley_menu;
 868
 869         priv = GET_PRIV (chat);
 870
 871         /* Add the emoticon menu. */
 872         item = gtk_separator_menu_item_new ();
 873         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 874         gtk_widget_show (item);
 875
 876         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 877         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 878         gtk_widget_show (item);
 879
 880         smiley_menu = gossip_chat_view_get_smiley_menu (
 881                 G_CALLBACK (chat_insert_smiley_activate_cb),
 882                 chat,
 883                 priv->tooltips);
 884         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 885
 886         /* Add the spell check menu item. */
 887         buffer = gtk_text_view_get_buffer (view);
 888         table = gtk_text_buffer_get_tag_table (buffer);
 889
 890         tag = gtk_text_tag_table_lookup (table, "misspelled");
 891
 892         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 893
 894         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 895                                                GTK_TEXT_WINDOW_WIDGET,
 896                                                x, y,
 897                                                &x, &y);
 898
 899         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 900
 901         start = end = iter;
 902
 903         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 904             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 905
 906                 str = gtk_text_buffer_get_text (buffer,
 907                                                 &start, &end, FALSE);
 908         }
 909
 910         if (G_STR_EMPTY (str)) {
 911                 return;
 912         }
 913
 914         chat_spell = chat_spell_new (chat, str, start, end);
 915
 916         g_object_set_data_full (G_OBJECT (menu),
 917                                 "chat_spell", chat_spell,
 918                                 (GDestroyNotify) chat_spell_free);
 919
 920         item = gtk_separator_menu_item_new ();
 921         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 922         gtk_widget_show (item);
 923
 924         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 925         g_signal_connect (item,
 926                           "activate",
 927                           G_CALLBACK (chat_text_check_word_spelling_cb),
 928                           chat_spell);
 929         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 930         gtk_widget_show (item);
 931 }
 932
 933 static void
 934 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 935                                   GossipChatSpell *chat_spell)
 936 {
 937         gossip_spell_dialog_show (chat_spell->chat,
 938                                   chat_spell->start,
 939                                   chat_spell->end,
 940                                   chat_spell->word);
 941 }
 942
 943 static GossipChatSpell *
 944 chat_spell_new (GossipChat  *chat,
 945                 const gchar *word,
 946                 GtkTextIter  start,
 947                 GtkTextIter  end)
 948 {
 949         GossipChatSpell *chat_spell;
 950
 951         chat_spell = g_new0 (GossipChatSpell, 1);
 952
 953         chat_spell->chat = g_object_ref (chat);
 954         chat_spell->word = g_strdup (word);
 955         chat_spell->start = start;
 956         chat_spell->end = end;
 957
 958         return chat_spell;
 959 }
 960
 961 static void
 962 chat_spell_free (GossipChatSpell *chat_spell)
 963 {
 964         g_object_unref (chat_spell->chat);
 965         g_free (chat_spell->word);
 966         g_free (chat_spell);
 967 }
 968
 969 static void
 970 chat_composing_start (GossipChat *chat)
 971 {
 972         GossipChatPriv *priv;
 973
 974         priv = GET_PRIV (chat);
 975
 976         if (priv->composing_stop_timeout_id) {
 977                 /* Just restart the timeout */
 978                 chat_composing_remove_timeout (chat);
 979         } else {
 980                 empathy_tp_chat_set_state (priv->tp_chat,
 981                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
 982         }
 983
 984         priv->composing_stop_timeout_id = g_timeout_add (
 985                 1000 * COMPOSING_STOP_TIMEOUT,
 986                 (GSourceFunc) chat_composing_stop_timeout_cb,
 987                 chat);
 988 }
 989
 990 static void
 991 chat_composing_stop (GossipChat *chat)
 992 {
 993         GossipChatPriv *priv;
 994
 995         priv = GET_PRIV (chat);
 996
 997         chat_composing_remove_timeout (chat);
 998         empathy_tp_chat_set_state (priv->tp_chat,
 999                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1000 }
1001
1002 static void
1003 chat_composing_remove_timeout (GossipChat *chat)
1004 {
1005         GossipChatPriv *priv;
1006
1007         priv = GET_PRIV (chat);
1008
1009         if (priv->composing_stop_timeout_id) {
1010                 g_source_remove (priv->composing_stop_timeout_id);
1011                 priv->composing_stop_timeout_id = 0;
1012         }
1013 }
1014
1015 static gboolean
1016 chat_composing_stop_timeout_cb (GossipChat *chat)
1017 {
1018         GossipChatPriv *priv;
1019
1020         priv = GET_PRIV (chat);
1021
1022         priv->composing_stop_timeout_id = 0;
1023         empathy_tp_chat_set_state (priv->tp_chat,
1024                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1025
1026         return FALSE;
1027 }
1028
1029 static void
1030 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1031                        GossipContact             *contact,
1032                        TelepathyChannelChatState  state,
1033                        GossipChat                *chat)
1034 {
1035         GossipChatPriv *priv;
1036         GList          *l;
1037         gboolean        was_composing;
1038
1039         priv = GET_PRIV (chat);
1040
1041         if (gossip_contact_is_user (contact)) {
1042                 /* We don't care about our own chat state */
1043                 return;
1044         }
1045
1046         was_composing = (priv->compositors != NULL);
1047
1048         /* Find the contact in the list. After that l is the list elem or NULL */
1049         for (l = priv->compositors; l; l = l->next) {
1050                 if (gossip_contact_equal (contact, l->data)) {
1051                         break;
1052                 }
1053         }
1054
1055         switch (state) {
1056         case TP_CHANNEL_CHAT_STATE_GONE:
1057         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1058         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1059                 /* Contact is not composing */
1060                 if (l) {
1061                         priv->compositors = g_list_remove_link (priv->compositors, l);
1062                         g_object_unref (l->data);
1063                         g_list_free1 (l);
1064                 }
1065                 break;
1066         case TP_CHANNEL_CHAT_STATE_PAUSED:
1067         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1068                 /* Contact is composing */
1069                 if (!l) {
1070                         priv->compositors = g_list_prepend (priv->compositors,
1071                                                             g_object_ref (contact));
1072                 }
1073                 break;
1074         default:
1075                 g_assert_not_reached ();
1076         }
1077
1078         gossip_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1079                       was_composing ? "yes" : "no",
1080                       priv->compositors ? "yes" : "no");
1081
1082         if ((was_composing && !priv->compositors) ||
1083             (!was_composing && priv->compositors)) {
1084                 /* Composing state changed */
1085                 g_signal_emit (chat, signals[COMPOSING], 0,
1086                                priv->compositors != NULL);
1087         }
1088 }
1089
1090 static void
1091 chat_add_logs (GossipChat *chat)
1092 {
1093         GossipChatPriv *priv;
1094         GList          *messages, *l;
1095         guint           num_messages;
1096         guint           i;
1097
1098         priv = GET_PRIV (chat);
1099
1100         /* Do not display backlog for chatrooms */
1101         if (gossip_chat_is_group_chat (chat)) {
1102                 return;
1103         }
1104
1105         /* Turn off scrolling temporarily */
1106         gossip_chat_view_scroll (chat->view, FALSE);
1107
1108         /* Add messages from last conversation */
1109         messages = empathy_log_manager_get_last_messages (priv->log_manager,
1110                                                           chat->account,
1111                                                           gossip_chat_get_id (chat),
1112                                                           gossip_chat_is_group_chat (chat));
1113         num_messages  = g_list_length (messages);
1114
1115         for (l = messages, i = 0; l; l = l->next, i++) {
1116                 GossipMessage *message;
1117
1118                 message = l->data;
1119
1120                 /* Only add 10 last messages */
1121                 if (num_messages - i > 10) {
1122                         g_object_unref (message);
1123                         continue;
1124                 }
1125
1126
1127                 gossip_chat_view_append_message (chat->view, message);
1128                 g_object_unref (message);
1129         }
1130         g_list_free (messages);
1131
1132         /* Turn back on scrolling */
1133         gossip_chat_view_scroll (chat->view, TRUE);
1134
1135         /* Scroll to the most recent messages, we reference the chat
1136          * for the duration of the scroll func.
1137          */
1138         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
1139                                            g_object_ref (chat));
1140 }
1141
1142 /* Scroll down after the back-log has been received. */
1143 static gboolean
1144 chat_scroll_down_idle_func (GossipChat *chat)
1145 {
1146         GossipChatPriv *priv;
1147
1148         priv = GET_PRIV (chat);
1149
1150         gossip_chat_scroll_down (chat);
1151         g_object_unref (chat);
1152
1153         priv->scroll_idle_id = 0;
1154
1155         return FALSE;
1156 }
1157
1158 gboolean
1159 gossip_chat_get_is_command (const gchar *str)
1160 {
1161         g_return_val_if_fail (str != NULL, FALSE);
1162
1163         if (str[0] != '/') {
1164                 return FALSE;
1165         }
1166
1167         if (g_str_has_prefix (str, "/me")) {
1168                 return TRUE;
1169         }
1170         else if (g_str_has_prefix (str, "/nick")) {
1171                 return TRUE;
1172         }
1173         else if (g_str_has_prefix (str, "/topic")) {
1174                 return TRUE;
1175         }
1176
1177         return FALSE;
1178 }
1179
1180 void
1181 gossip_chat_correct_word (GossipChat  *chat,
1182                           GtkTextIter  start,
1183                           GtkTextIter  end,
1184                           const gchar *new_word)
1185 {
1186         GtkTextBuffer *buffer;
1187
1188         g_return_if_fail (chat != NULL);
1189         g_return_if_fail (new_word != NULL);
1190
1191         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1192
1193         gtk_text_buffer_delete (buffer, &start, &end);
1194         gtk_text_buffer_insert (buffer, &start,
1195                                 new_word,
1196                                 -1);
1197 }
1198
1199 const gchar *
1200 gossip_chat_get_name (GossipChat *chat)
1201 {
1202         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1203
1204         if (GOSSIP_CHAT_GET_CLASS (chat)->get_name) {
1205                 return GOSSIP_CHAT_GET_CLASS (chat)->get_name (chat);
1206         }
1207
1208         return NULL;
1209 }
1210
1211 gchar *
1212 gossip_chat_get_tooltip (GossipChat *chat)
1213 {
1214         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1215
1216         if (GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip) {
1217                 return GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1218         }
1219
1220         return NULL;
1221 }
1222
1223 const gchar *
1224 gossip_chat_get_status_icon_name (GossipChat *chat)
1225 {
1226         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1227
1228         if (GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1229                 return GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1230         }
1231
1232         return NULL;
1233 }
1234
1235 GtkWidget *
1236 gossip_chat_get_widget (GossipChat *chat)
1237 {
1238         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1239
1240         if (GOSSIP_CHAT_GET_CLASS (chat)->get_widget) {
1241                 return GOSSIP_CHAT_GET_CLASS (chat)->get_widget (chat);
1242         }
1243
1244         return NULL;
1245 }
1246
1247 gboolean
1248 gossip_chat_is_group_chat (GossipChat *chat)
1249 {
1250         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1251
1252         if (GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat) {
1253                 return GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1254         }
1255
1256         return FALSE;
1257 }
1258
1259 gboolean
1260 gossip_chat_is_connected (GossipChat *chat)
1261 {
1262         GossipChatPriv *priv;
1263
1264         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1265
1266         priv = GET_PRIV (chat);
1267
1268         return (priv->tp_chat != NULL);
1269 }
1270
1271 void
1272 gossip_chat_save_geometry (GossipChat *chat,
1273                            gint        x,
1274                            gint        y,
1275                            gint        w,
1276                            gint        h)
1277 {
1278         gossip_geometry_save (gossip_chat_get_id (chat), x, y, w, h);
1279 }
1280
1281 void
1282 gossip_chat_load_geometry (GossipChat *chat,
1283                            gint       *x,
1284                            gint       *y,
1285                            gint       *w,
1286                            gint       *h)
1287 {
1288         gossip_geometry_load (gossip_chat_get_id (chat), x, y, w, h);
1289 }
1290
1291 void
1292 gossip_chat_set_tp_chat (GossipChat    *chat,
1293                          EmpathyTpChat *tp_chat)
1294 {
1295         GossipChatPriv *priv;
1296
1297         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1298         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1299
1300         priv = GET_PRIV (chat);
1301
1302         if (tp_chat == priv->tp_chat) {
1303                 return;
1304         }
1305
1306         if (priv->tp_chat) {
1307                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1308                                                       chat_message_received_cb,
1309                                                       chat);
1310                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1311                                                       chat_destroy_cb,
1312                                                       chat);
1313                 g_object_unref (priv->tp_chat);
1314         }
1315
1316         g_free (priv->id);
1317         priv->tp_chat = g_object_ref (tp_chat);
1318         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1319         priv->time_joined = gossip_time_get_current ();
1320
1321         if (priv->first_tp_chat) {
1322                 chat_add_logs (chat);
1323                 priv->first_tp_chat = FALSE;
1324         }
1325
1326         g_signal_connect (tp_chat, "message-received",
1327                           G_CALLBACK (chat_message_received_cb),
1328                           chat);
1329         g_signal_connect (tp_chat, "chat-state-changed",
1330                           G_CALLBACK (chat_state_changed_cb),
1331                           chat);
1332         g_signal_connect (tp_chat, "destroy",
1333                           G_CALLBACK (chat_destroy_cb),
1334                           chat);
1335
1336         empathy_tp_chat_request_pending (tp_chat);
1337
1338         if (!priv->sensitive) {
1339                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
1340                 gossip_chat_view_append_event (chat->view, _("Connected"));
1341                 priv->sensitive = TRUE;
1342         }
1343
1344         if (GOSSIP_CHAT_GET_CLASS (chat)->set_tp_chat) {
1345                 GOSSIP_CHAT_GET_CLASS (chat)->set_tp_chat (chat, tp_chat);
1346         }
1347
1348 }
1349
1350 const gchar *
1351 gossip_chat_get_id (GossipChat *chat)
1352 {
1353         GossipChatPriv *priv;
1354
1355         priv = GET_PRIV (chat);
1356
1357         return priv->id;
1358 }
1359
1360 void
1361 gossip_chat_clear (GossipChat *chat)
1362 {
1363         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1364
1365         gossip_chat_view_clear (chat->view);
1366 }
1367
1368 void
1369 gossip_chat_set_window (GossipChat       *chat,
1370                         GossipChatWindow *window)
1371 {
1372         GossipChatPriv *priv;
1373
1374         priv = GET_PRIV (chat);
1375         priv->window = window;
1376 }
1377
1378 GossipChatWindow *
1379 gossip_chat_get_window (GossipChat *chat)
1380 {
1381         GossipChatPriv *priv;
1382
1383         priv = GET_PRIV (chat);
1384
1385         return priv->window;
1386 }
1387
1388 void
1389 gossip_chat_scroll_down (GossipChat *chat)
1390 {
1391         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1392
1393         gossip_chat_view_scroll_down (chat->view);
1394 }
1395
1396 void
1397 gossip_chat_cut (GossipChat *chat)
1398 {
1399         GtkTextBuffer *buffer;
1400
1401         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1402
1403         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1404         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1405                 GtkClipboard *clipboard;
1406
1407                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1408
1409                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1410         }
1411 }
1412
1413 void
1414 gossip_chat_copy (GossipChat *chat)
1415 {
1416         GtkTextBuffer *buffer;
1417
1418         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1419
1420         if (gossip_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1421                 gossip_chat_view_copy_clipboard (chat->view);
1422                 return;
1423         }
1424
1425         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1426         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1427                 GtkClipboard *clipboard;
1428
1429                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1430
1431                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1432         }
1433 }
1434
1435 void
1436 gossip_chat_paste (GossipChat *chat)
1437 {
1438         GtkTextBuffer *buffer;
1439         GtkClipboard  *clipboard;
1440
1441         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1442
1443         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1444         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1445
1446         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1447 }
1448
1449 void
1450 gossip_chat_present (GossipChat *chat)
1451 {
1452         GossipChatPriv *priv;
1453
1454         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1455
1456         priv = GET_PRIV (chat);
1457
1458         if (priv->window == NULL) {
1459                 GossipChatWindow *window;
1460
1461                 window = gossip_chat_window_get_default ();
1462                 if (!window) {
1463                         window = gossip_chat_window_new ();
1464                 }
1465
1466                 gossip_chat_window_add_chat (window, chat);
1467         }
1468
1469         gossip_chat_window_switch_to_chat (priv->window, chat);
1470         gossip_window_present (
1471                 GTK_WINDOW (gossip_chat_window_get_dialog (priv->window)),
1472                 TRUE);
1473
1474         gtk_widget_grab_focus (chat->input_text_view);
1475 }
1476
1477 gboolean
1478 gossip_chat_should_play_sound (GossipChat *chat)
1479 {
1480         GossipChatWindow *window;
1481         gboolean          play = TRUE;
1482
1483         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1484
1485         window = gossip_chat_get_window (chat);
1486         if (!window) {
1487                 return TRUE;
1488         }
1489
1490         play = !gossip_chat_window_has_focus (window);
1491
1492         return play;
1493 }
1494
1495 gboolean
1496 gossip_chat_should_highlight_nick (GossipMessage *message)
1497 {
1498         GossipContact *contact;
1499         const gchar   *msg, *to;
1500         gchar         *cf_msg, *cf_to;
1501         gchar         *ch;
1502         gboolean       ret_val;
1503
1504         g_return_val_if_fail (GOSSIP_IS_MESSAGE (message), FALSE);
1505
1506         gossip_debug (DEBUG_DOMAIN, "Highlighting nickname");
1507
1508         ret_val = FALSE;
1509
1510         msg = gossip_message_get_body (message);
1511         if (!msg) {
1512                 return FALSE;
1513         }
1514
1515         contact = gossip_message_get_receiver (message);
1516         if (!contact || !gossip_contact_is_user (contact)) {
1517                 return FALSE;
1518         }
1519
1520         to = gossip_contact_get_name (contact);
1521         if (!to) {
1522                 return FALSE;
1523         }
1524
1525         cf_msg = g_utf8_casefold (msg, -1);
1526         cf_to = g_utf8_casefold (to, -1);
1527
1528         ch = strstr (cf_msg, cf_to);
1529         if (ch == NULL) {
1530                 goto finished;
1531         }
1532
1533         if (ch != cf_msg) {
1534                 /* Not first in the message */
1535                 if ((*(ch - 1) != ' ') &&
1536                     (*(ch - 1) != ',') &&
1537                     (*(ch - 1) != '.')) {
1538                         goto finished;
1539                 }
1540         }
1541
1542         ch = ch + strlen (cf_to);
1543         if (ch >= cf_msg + strlen (cf_msg)) {
1544                 ret_val = TRUE;
1545                 goto finished;
1546         }
1547
1548         if ((*ch == ' ') ||
1549             (*ch == ',') ||
1550             (*ch == '.') ||
1551             (*ch == ':')) {
1552                 ret_val = TRUE;
1553                 goto finished;
1554         }
1555
1556 finished:
1557         g_free (cf_msg);
1558         g_free (cf_to);
1559
1560         return ret_val;
1561 }
1562