libempathy-gtk/gossip-chat.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2002-2007 Imendio AB
   4  * Copyright (C) 2007 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  *
  21  * Authors: Mikael Hallendal <micke@imendio.com>
  22  *          Richard Hult <richard@imendio.com>
  23  *          Martyn Russell <martyn@imendio.com>
  24  *          Geert-Jan Van den Bogaerde <geertjan@gnome.org>
  25  *          Xavier Claessens <xclaesse@gmail.com>
  26  */
  27
  28 #include "config.h"
  29
  30 #include <string.h>
  31 #include <stdlib.h>
  32
  33 #include <gdk/gdkkeysyms.h>
  34 #include <glib/gi18n.h>
  35 #include <gtk/gtk.h>
  36 #include <glade/glade.h>
  37
  38 #include <libempathy/empathy-contact-manager.h>
  39 #include <libempathy/gossip-debug.h>
  40 #include <libempathy/gossip-utils.h>
  41 #include <libempathy/gossip-conf.h>
  42 #include <libempathy/empathy-marshal.h>
  43
  44 #include "gossip-chat.h"
  45 #include "gossip-chat-window.h"
  46 #include "gossip-geometry.h"
  47 #include "gossip-preferences.h"
  48 #include "gossip-spell.h"
  49 //#include "gossip-spell-dialog.h"
  50 #include "gossip-ui-utils.h"
  51
  52 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GOSSIP_TYPE_CHAT, GossipChatPriv))
  53
  54 #define DEBUG_DOMAIN "Chat"
  55
  56 #define CHAT_DIR_CREATE_MODE  (S_IRUSR | S_IWUSR | S_IXUSR)
  57 #define CHAT_FILE_CREATE_MODE (S_IRUSR | S_IWUSR)
  58
  59 #define IS_ENTER(v) (v == GDK_Return || v == GDK_ISO_Enter || v == GDK_KP_Enter)
  60
  61 #define MAX_INPUT_HEIGHT 150
  62
  63 #define COMPOSING_STOP_TIMEOUT 5
  64
  65 struct _GossipChatPriv {
  66         EmpathyContactManager *manager;
  67         EmpathyTpChat         *tp_chat;
  68         GossipChatWindow      *window;
  69         GtkTooltips           *tooltips;
  70         guint                  composing_stop_timeout_id;
  71         gboolean               sensitive;
  72         gchar                 *id;
  73         GSList                *sent_messages;
  74         gint                   sent_messages_index;
  75         GList                 *compositors;
  76         guint                  scroll_idle_id;
  77         /* Used to automatically shrink a window that has temporarily
  78          * grown due to long input.
  79          */
  80         gint                   padding_height;
  81         gint                   default_window_height;
  82         gint                   last_input_height;
  83         gboolean               vscroll_visible;
  84 };
  85
  86 typedef struct {
  87         GossipChat  *chat;
  88         gchar       *word;
  89
  90         GtkTextIter  start;
  91         GtkTextIter  end;
  92 } GossipChatSpell;
  93
  94 static void             gossip_chat_class_init            (GossipChatClass *klass);
  95 static void             gossip_chat_init                  (GossipChat      *chat);
  96 static void             chat_finalize                     (GObject         *object);
  97 static void             chat_destroy_cb                   (EmpathyTpChat   *tp_chat,
  98                                                            GossipChat      *chat);
  99 static void             chat_send                         (GossipChat      *chat,
 100                                                            const gchar     *msg);
 101 static void             chat_input_text_view_send         (GossipChat      *chat);
 102 static void             chat_message_received_cb          (EmpathyTpChat   *tp_chat,
 103                                                            GossipMessage   *message,
 104                                                            GossipChat      *chat);
 105 void                    chat_sent_message_add             (GossipChat      *chat,
 106                                                            const gchar     *str);
 107 const gchar *           chat_sent_message_get_next        (GossipChat      *chat);
 108 const gchar *           chat_sent_message_get_last        (GossipChat      *chat);
 109 static gboolean         chat_input_key_press_event_cb     (GtkWidget       *widget,
 110                                                            GdkEventKey     *event,
 111                                                            GossipChat      *chat);
 112 static void             chat_input_text_buffer_changed_cb (GtkTextBuffer   *buffer,
 113                                                            GossipChat      *chat);
 114 static gboolean         chat_text_view_focus_in_event_cb  (GtkWidget       *widget,
 115                                                            GdkEvent        *event,
 116                                                            GossipChat      *chat);
 117 static void             chat_text_view_scroll_hide_cb     (GtkWidget       *widget,
 118                                                            GossipChat      *chat);
 119 static void             chat_text_view_size_allocate_cb   (GtkWidget       *widget,
 120                                                            GtkAllocation   *allocation,
 121                                                            GossipChat      *chat);
 122 static void             chat_text_view_realize_cb         (GtkWidget       *widget,
 123                                                            GossipChat      *chat);
 124 static void             chat_text_populate_popup_cb       (GtkTextView     *view,
 125                                                            GtkMenu         *menu,
 126                                                            GossipChat      *chat);
 127 static void             chat_text_check_word_spelling_cb  (GtkMenuItem     *menuitem,
 128                                                            GossipChatSpell *chat_spell);
 129 static GossipChatSpell *chat_spell_new                    (GossipChat      *chat,
 130                                                            const gchar     *word,
 131                                                            GtkTextIter      start,
 132                                                            GtkTextIter      end);
 133 static void             chat_spell_free                   (GossipChatSpell *chat_spell);
 134 static void             chat_composing_start              (GossipChat      *chat);
 135 static void             chat_composing_stop               (GossipChat      *chat);
 136 static void             chat_composing_remove_timeout     (GossipChat      *chat);
 137 static gboolean         chat_composing_stop_timeout_cb    (GossipChat      *chat);
 138 static void             chat_state_changed_cb             (EmpathyTpChat   *tp_chat,
 139                                                            GossipContact   *contact,
 140                                                            TelepathyChannelChatState  state,
 141                                                            GossipChat      *chat);
 142 static gboolean         chat_scroll_down_idle_func        (GossipChat      *chat);
 143
 144 enum {
 145         COMPOSING,
 146         NEW_MESSAGE,
 147         NAME_CHANGED,
 148         STATUS_CHANGED,
 149         LAST_SIGNAL
 150 };
 151
 152 static guint signals[LAST_SIGNAL] = { 0 };
 153
 154 G_DEFINE_TYPE (GossipChat, gossip_chat, G_TYPE_OBJECT);
 155
 156 static void
 157 gossip_chat_class_init (GossipChatClass *klass)
 158 {
 159         GObjectClass *object_class;
 160
 161         object_class = G_OBJECT_CLASS (klass);
 162
 163         object_class->finalize = chat_finalize;
 164
 165         signals[COMPOSING] =
 166                 g_signal_new ("composing",
 167                               G_OBJECT_CLASS_TYPE (object_class),
 168                               G_SIGNAL_RUN_LAST,
 169                               0,
 170                               NULL, NULL,
 171                               g_cclosure_marshal_VOID__BOOLEAN,
 172                               G_TYPE_NONE,
 173                               1, G_TYPE_BOOLEAN);
 174
 175         signals[NEW_MESSAGE] =
 176                 g_signal_new ("new-message",
 177                               G_OBJECT_CLASS_TYPE (object_class),
 178                               G_SIGNAL_RUN_LAST,
 179                               0,
 180                               NULL, NULL,
 181                               empathy_marshal_VOID__OBJECT_BOOLEAN,
 182                               G_TYPE_NONE,
 183                               2, GOSSIP_TYPE_MESSAGE, G_TYPE_BOOLEAN);
 184
 185         signals[NAME_CHANGED] =
 186                 g_signal_new ("name-changed",
 187                               G_OBJECT_CLASS_TYPE (object_class),
 188                               G_SIGNAL_RUN_LAST,
 189                               0,
 190                               NULL, NULL,
 191                               g_cclosure_marshal_VOID__POINTER,
 192                               G_TYPE_NONE,
 193                               1, G_TYPE_POINTER);
 194
 195         signals[STATUS_CHANGED] =
 196                 g_signal_new ("status-changed",
 197                               G_OBJECT_CLASS_TYPE (object_class),
 198                               G_SIGNAL_RUN_LAST,
 199                               0,
 200                               NULL, NULL,
 201                               g_cclosure_marshal_VOID__VOID,
 202                               G_TYPE_NONE,
 203                               0);
 204
 205         g_type_class_add_private (object_class, sizeof (GossipChatPriv));
 206 }
 207
 208 static void
 209 gossip_chat_init (GossipChat *chat)
 210 {
 211         GossipChatPriv *priv;
 212         GtkTextBuffer  *buffer;
 213
 214         chat->view = gossip_chat_view_new ();
 215         chat->input_text_view = gtk_text_view_new ();
 216
 217         chat->is_first_char = TRUE;
 218
 219         g_object_set (chat->input_text_view,
 220                       "pixels-above-lines", 2,
 221                       "pixels-below-lines", 2,
 222                       "pixels-inside-wrap", 1,
 223                       "right-margin", 2,
 224                       "left-margin", 2,
 225                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 226                       NULL);
 227
 228         priv = GET_PRIV (chat);
 229
 230         priv->manager = empathy_contact_manager_new ();
 231         priv->tooltips = gtk_tooltips_new ();
 232         priv->default_window_height = -1;
 233         priv->vscroll_visible = FALSE;
 234         priv->sensitive = TRUE;
 235         priv->sent_messages = NULL;
 236         priv->sent_messages_index = -1;
 237
 238         g_signal_connect (chat->input_text_view,
 239                           "key_press_event",
 240                           G_CALLBACK (chat_input_key_press_event_cb),
 241                           chat);
 242
 243         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 244         g_signal_connect (buffer,
 245                           "changed",
 246                           G_CALLBACK (chat_input_text_buffer_changed_cb),
 247                           chat);
 248         g_signal_connect (chat->view,
 249                           "focus_in_event",
 250                           G_CALLBACK (chat_text_view_focus_in_event_cb),
 251                           chat);
 252
 253         g_signal_connect (chat->input_text_view,
 254                           "size_allocate",
 255                           G_CALLBACK (chat_text_view_size_allocate_cb),
 256                           chat);
 257
 258         g_signal_connect (chat->input_text_view,
 259                           "realize",
 260                           G_CALLBACK (chat_text_view_realize_cb),
 261                           chat);
 262
 263         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
 264                           "populate_popup",
 265                           G_CALLBACK (chat_text_populate_popup_cb),
 266                           chat);
 267
 268         /* create misspelt words identification tag */
 269         gtk_text_buffer_create_tag (buffer,
 270                                     "misspelled",
 271                                     "underline", PANGO_UNDERLINE_ERROR,
 272                                     NULL);
 273
 274
 275
 276         /* Turn off scrolling temporarily */
 277         gossip_chat_view_scroll (chat->view, FALSE);
 278 #if 0
 279 FIXME:
 280         /* Add messages from last conversation */
 281         log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 282         messages = gossip_log_get_last_for_contact (log_manager, priv->contact);
 283         num_messages  = g_list_length (messages);
 284
 285         for (l = messages, i = 0; l; l = l->next, i++) {
 286                 message = l->data;
 287
 288                 if (num_messages - i > 10) {
 289                         continue;
 290                 }
 291
 292                 sender = gossip_message_get_sender (message);
 293                 if (gossip_contact_equal (priv->own_contact, sender)) {
 294                         gossip_chat_view_append_message_from_self (view,
 295                                                                    message,
 296                                                                    priv->own_contact,
 297                                                                    priv->own_avatar);
 298                 } else {
 299                         gossip_chat_view_append_message_from_other (view,
 300                                                                     message,
 301                                                                     sender,
 302                                                                     priv->other_avatar);
 303                 }
 304         }
 305
 306         g_list_foreach (messages, (GFunc) g_object_unref, NULL);
 307         g_list_free (messages);
 308 #endif
 309         /* Turn back on scrolling */
 310         gossip_chat_view_scroll (chat->view, TRUE);
 311
 312         /* Scroll to the most recent messages, we reference the chat
 313          * for the duration of the scroll func.
 314          */
 315         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
 316                                            g_object_ref (chat));
 317
 318 }
 319
 320 static void
 321 chat_finalize (GObject *object)
 322 {
 323         GossipChat     *chat;
 324         GossipChatPriv *priv;
 325
 326         chat = GOSSIP_CHAT (object);
 327         priv = GET_PRIV (chat);
 328
 329         gossip_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 330
 331         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 332         g_slist_free (priv->sent_messages);
 333
 334         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
 335         g_list_free (priv->compositors);
 336
 337         chat_composing_remove_timeout (chat);
 338         g_object_unref (chat->account);
 339         g_object_unref (priv->manager);
 340
 341         if (priv->tp_chat) {
 342                 g_object_unref (priv->tp_chat);
 343         }
 344
 345         if (priv->scroll_idle_id) {
 346                 g_source_remove (priv->scroll_idle_id);
 347         }
 348
 349         g_free (priv->id);
 350
 351         G_OBJECT_CLASS (gossip_chat_parent_class)->finalize (object);
 352 }
 353
 354 static void
 355 chat_destroy_cb (EmpathyTpChat *tp_chat,
 356                  GossipChat    *chat)
 357 {
 358         GossipChatPriv *priv;
 359         GtkWidget      *widget;
 360
 361         priv = GET_PRIV (chat);
 362
 363         if (priv->tp_chat) {
 364                 g_object_unref (priv->tp_chat);
 365                 priv->tp_chat = NULL;
 366         }
 367
 368         gossip_chat_view_append_event (chat->view, _("Disconnected"));
 369
 370         widget = gossip_chat_get_widget (chat);
 371         gtk_widget_set_sensitive (widget, FALSE);
 372         priv->sensitive = FALSE;
 373 }
 374
 375 static void
 376 chat_send (GossipChat  *chat,
 377            const gchar *msg)
 378 {
 379         GossipChatPriv   *priv;
 380         //GossipLogManager *log_manager;
 381         GossipMessage    *message;
 382         GossipContact    *own_contact;
 383
 384         priv = GET_PRIV (chat);
 385
 386         if (G_STR_EMPTY (msg)) {
 387                 return;
 388         }
 389
 390         chat_sent_message_add (chat, msg);
 391
 392         if (g_str_has_prefix (msg, "/clear")) {
 393                 gossip_chat_view_clear (chat->view);
 394                 return;
 395         }
 396
 397         /* FIXME: add here something to let group/privrate chat handle
 398          *        some special messages */
 399
 400         /* FIXME: gossip_app_set_not_away ();*/
 401
 402         own_contact = empathy_contact_manager_get_user (priv->manager, chat->account);
 403         message = gossip_message_new (msg);
 404         gossip_message_set_sender (message, own_contact);
 405
 406         //FIXME: log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 407         //gossip_log_message_for_contact (log_manager, message, FALSE);
 408
 409         empathy_tp_chat_send (priv->tp_chat, message);
 410
 411         g_object_unref (message);
 412 }
 413
 414 static void
 415 chat_input_text_view_send (GossipChat *chat)
 416 {
 417         GossipChatPriv *priv;
 418         GtkTextBuffer  *buffer;
 419         GtkTextIter     start, end;
 420         gchar          *msg;
 421
 422         priv = GET_PRIV (chat);
 423
 424         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 425
 426         gtk_text_buffer_get_bounds (buffer, &start, &end);
 427         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 428
 429         /* clear the input field */
 430         gtk_text_buffer_set_text (buffer, "", -1);
 431
 432         chat_send (chat, msg);
 433
 434         g_free (msg);
 435
 436         chat->is_first_char = TRUE;
 437 }
 438
 439 static void
 440 chat_message_received_cb (EmpathyTpChat *tp_chat,
 441                           GossipMessage *message,
 442                           GossipChat    *chat)
 443 {
 444         GossipChatPriv *priv;
 445         //GossipLogManager      *log_manager;
 446         GossipContact         *sender;
 447
 448         priv = GET_PRIV (chat);
 449
 450         sender = gossip_message_get_sender (message);
 451         gossip_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 452                       gossip_contact_get_name (sender));
 453
 454 /*FIXME:
 455         log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 456         gossip_log_message_for_contact (log_manager, message, TRUE);
 457 */
 458         gossip_chat_view_append_message (chat->view, message);
 459
 460         if (gossip_chat_should_play_sound (chat)) {
 461                 // FIXME: gossip_sound_play (GOSSIP_SOUND_CHAT);
 462         }
 463
 464         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 465 }
 466
 467 void
 468 chat_sent_message_add (GossipChat  *chat,
 469                        const gchar *str)
 470 {
 471         GossipChatPriv *priv;
 472         GSList         *list;
 473         GSList         *item;
 474
 475         priv = GET_PRIV (chat);
 476
 477         /* Save the sent message in our repeat buffer */
 478         list = priv->sent_messages;
 479
 480         /* Remove any other occurances of this msg */
 481         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 482                 list = g_slist_remove_link (list, item);
 483                 g_free (item->data);
 484                 g_slist_free1 (item);
 485         }
 486
 487         /* Trim the list to the last 10 items */
 488         while (g_slist_length (list) > 10) {
 489                 item = g_slist_last (list);
 490                 if (item) {
 491                         list = g_slist_remove_link (list, item);
 492                         g_free (item->data);
 493                         g_slist_free1 (item);
 494                 }
 495         }
 496
 497         /* Add new message */
 498         list = g_slist_prepend (list, g_strdup (str));
 499
 500         /* Set list and reset the index */
 501         priv->sent_messages = list;
 502         priv->sent_messages_index = -1;
 503 }
 504
 505 const gchar *
 506 chat_sent_message_get_next (GossipChat *chat)
 507 {
 508         GossipChatPriv *priv;
 509         gint            max;
 510
 511         priv = GET_PRIV (chat);
 512
 513         if (!priv->sent_messages) {
 514                 gossip_debug (DEBUG_DOMAIN,
 515                               "No sent messages, next message is NULL");
 516                 return NULL;
 517         }
 518
 519         max = g_slist_length (priv->sent_messages) - 1;
 520
 521         if (priv->sent_messages_index < max) {
 522                 priv->sent_messages_index++;
 523         }
 524
 525         gossip_debug (DEBUG_DOMAIN,
 526                       "Returning next message index:%d",
 527                       priv->sent_messages_index);
 528
 529         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 530 }
 531
 532 const gchar *
 533 chat_sent_message_get_last (GossipChat *chat)
 534 {
 535         GossipChatPriv *priv;
 536
 537         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
 538
 539         priv = GET_PRIV (chat);
 540
 541         if (!priv->sent_messages) {
 542                 gossip_debug (DEBUG_DOMAIN,
 543                               "No sent messages, last message is NULL");
 544                 return NULL;
 545         }
 546
 547         if (priv->sent_messages_index >= 0) {
 548                 priv->sent_messages_index--;
 549         }
 550
 551         gossip_debug (DEBUG_DOMAIN,
 552                       "Returning last message index:%d",
 553                       priv->sent_messages_index);
 554
 555         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 556 }
 557
 558 static gboolean
 559 chat_input_key_press_event_cb (GtkWidget   *widget,
 560                                GdkEventKey *event,
 561                                GossipChat  *chat)
 562 {
 563         GossipChatPriv *priv;
 564         GtkAdjustment  *adj;
 565         gdouble         val;
 566         GtkWidget      *text_view_sw;
 567
 568         priv = GET_PRIV (chat);
 569
 570         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 571                 return TRUE;
 572         }
 573
 574         /* Catch ctrl+up/down so we can traverse messages we sent */
 575         if ((event->state & GDK_CONTROL_MASK) &&
 576             (event->keyval == GDK_Up ||
 577              event->keyval == GDK_Down)) {
 578                 GtkTextBuffer *buffer;
 579                 const gchar   *str;
 580
 581                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 582
 583                 if (event->keyval == GDK_Up) {
 584                         str = chat_sent_message_get_next (chat);
 585                 } else {
 586                         str = chat_sent_message_get_last (chat);
 587                 }
 588
 589                 g_signal_handlers_block_by_func (buffer,
 590                                                  chat_input_text_buffer_changed_cb,
 591                                                  chat);
 592                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 593                 g_signal_handlers_unblock_by_func (buffer,
 594                                                    chat_input_text_buffer_changed_cb,
 595                                                    chat);
 596
 597                 return TRUE;
 598         }
 599
 600         /* Catch enter but not ctrl/shift-enter */
 601         if (IS_ENTER (event->keyval) && !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 602                 GtkTextView *view;
 603
 604                 /* This is to make sure that kinput2 gets the enter. And if
 605                  * it's handled there we shouldn't send on it. This is because
 606                  * kinput2 uses Enter to commit letters. See:
 607                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 608                  */
 609
 610                 view = GTK_TEXT_VIEW (chat->input_text_view);
 611                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 612                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 613                         return TRUE;
 614                 }
 615
 616                 chat_input_text_view_send (chat);
 617                 return TRUE;
 618         }
 619
 620         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 621
 622         if (IS_ENTER (event->keyval) && (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 623                 /* Newline for shift-enter. */
 624                 return FALSE;
 625         }
 626         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 627                  event->keyval == GDK_Page_Up) {
 628                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 629                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 630
 631                 return TRUE;
 632         }
 633         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 634                  event->keyval == GDK_Page_Down) {
 635                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 636                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 637                 gtk_adjustment_set_value (adj, val);
 638
 639                 return TRUE;
 640         }
 641
 642         return FALSE;
 643 }
 644
 645 static gboolean
 646 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 647                                   GdkEvent   *event,
 648                                   GossipChat *chat)
 649 {
 650         gtk_widget_grab_focus (chat->input_text_view);
 651
 652         return TRUE;
 653 }
 654
 655 static void
 656 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 657                                    GossipChat    *chat)
 658 {
 659         GossipChatPriv *priv;
 660         GtkTextIter     start, end;
 661         gchar          *str;
 662         gboolean        spell_checker = FALSE;
 663
 664         priv = GET_PRIV (chat);
 665
 666         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 667                 chat_composing_stop (chat);
 668         } else {
 669                 chat_composing_start (chat);
 670         }
 671
 672         gossip_conf_get_bool (gossip_conf_get (),
 673                               GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 674                               &spell_checker);
 675
 676         if (chat->is_first_char) {
 677                 GtkRequisition  req;
 678                 gint            window_height;
 679                 GtkWidget      *dialog;
 680                 GtkAllocation  *allocation;
 681
 682                 /* Save the window's size */
 683                 dialog = gossip_chat_window_get_dialog (priv->window);
 684                 gtk_window_get_size (GTK_WINDOW (dialog),
 685                                      NULL, &window_height);
 686
 687                 gtk_widget_size_request (chat->input_text_view, &req);
 688
 689                 allocation = &GTK_WIDGET (chat->view)->allocation;
 690
 691                 priv->default_window_height = window_height;
 692                 priv->last_input_height = req.height;
 693                 priv->padding_height = window_height - req.height - allocation->height;
 694
 695                 chat->is_first_char = FALSE;
 696         }
 697
 698         gtk_text_buffer_get_start_iter (buffer, &start);
 699
 700         if (!spell_checker) {
 701                 gtk_text_buffer_get_end_iter (buffer, &end);
 702                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 703                 return;
 704         }
 705
 706         if (!gossip_spell_supported ()) {
 707                 return;
 708         }
 709
 710         /* NOTE: this is really inefficient, we shouldn't have to
 711            reiterate the whole buffer each time and check each work
 712            every time. */
 713         while (TRUE) {
 714                 gboolean correct = FALSE;
 715
 716                 /* if at start */
 717                 if (gtk_text_iter_is_start (&start)) {
 718                         end = start;
 719
 720                         if (!gtk_text_iter_forward_word_end (&end)) {
 721                                 /* no whole word yet */
 722                                 break;
 723                         }
 724                 } else {
 725                         if (!gtk_text_iter_forward_word_end (&end)) {
 726                                 /* must be the end of the buffer */
 727                                 break;
 728                         }
 729
 730                         start = end;
 731                         gtk_text_iter_backward_word_start (&start);
 732                 }
 733
 734                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 735
 736                 /* spell check string */
 737                 if (!gossip_chat_get_is_command (str)) {
 738                         correct = gossip_spell_check (str);
 739                 } else {
 740                         correct = TRUE;
 741                 }
 742
 743                 if (!correct) {
 744                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 745                 } else {
 746                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 747                 }
 748
 749                 g_free (str);
 750
 751                 /* set start iter to the end iters position */
 752                 start = end;
 753         }
 754 }
 755
 756 typedef struct {
 757         GtkWidget *window;
 758         gint       width;
 759         gint       height;
 760 } ChangeSizeData;
 761
 762 static gboolean
 763 chat_change_size_in_idle_cb (ChangeSizeData *data)
 764 {
 765         gtk_window_resize (GTK_WINDOW (data->window),
 766                            data->width, data->height);
 767
 768         return FALSE;
 769 }
 770
 771 static void
 772 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 773                                GossipChat *chat)
 774 {
 775         GossipChatPriv *priv;
 776         GtkWidget      *sw;
 777
 778         priv = GET_PRIV (chat);
 779
 780         priv->vscroll_visible = FALSE;
 781         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 782
 783         sw = gtk_widget_get_parent (chat->input_text_view);
 784         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 785                                         GTK_POLICY_NEVER,
 786                                         GTK_POLICY_NEVER);
 787         g_object_set (sw, "height-request", -1, NULL);
 788 }
 789
 790 static void
 791 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 792                                  GtkAllocation *allocation,
 793                                  GossipChat    *chat)
 794 {
 795         GossipChatPriv *priv;
 796         gint            width;
 797         GtkWidget      *dialog;
 798         ChangeSizeData *data;
 799         gint            window_height;
 800         gint            new_height;
 801         GtkAllocation  *view_allocation;
 802         gint            current_height;
 803         gint            diff;
 804         GtkWidget      *sw;
 805
 806         priv = GET_PRIV (chat);
 807
 808         if (priv->default_window_height <= 0) {
 809                 return;
 810         }
 811
 812         sw = gtk_widget_get_parent (widget);
 813         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 814                 GtkWidget *vscroll;
 815
 816                 priv->vscroll_visible = TRUE;
 817                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 818                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 819                                                 GTK_POLICY_NEVER,
 820                                                 GTK_POLICY_AUTOMATIC);
 821                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 822                 g_signal_connect (vscroll, "hide",
 823                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 824                                   chat);
 825         }
 826
 827         if (priv->last_input_height <= allocation->height) {
 828                 priv->last_input_height = allocation->height;
 829                 return;
 830         }
 831
 832         diff = priv->last_input_height - allocation->height;
 833         priv->last_input_height = allocation->height;
 834
 835         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 836
 837         dialog = gossip_chat_window_get_dialog (priv->window);
 838         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 839
 840         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 841
 842         if (new_height <= priv->default_window_height) {
 843                 window_height = priv->default_window_height;
 844         } else {
 845                 window_height = new_height;
 846         }
 847
 848         if (current_height <= window_height) {
 849                 return;
 850         }
 851
 852         /* Restore the window's size */
 853         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 854
 855         data = g_new0 (ChangeSizeData, 1);
 856         data->window = dialog;
 857         data->width  = width;
 858         data->height = window_height;
 859
 860         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 861                          (GSourceFunc) chat_change_size_in_idle_cb,
 862                          data, g_free);
 863 }
 864
 865 static void
 866 chat_text_view_realize_cb (GtkWidget  *widget,
 867                            GossipChat *chat)
 868 {
 869         gossip_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 870         gtk_widget_grab_focus (widget);
 871 }
 872
 873 static void
 874 chat_insert_smiley_activate_cb (GtkWidget  *menuitem,
 875                                 GossipChat *chat)
 876 {
 877         GtkTextBuffer *buffer;
 878         GtkTextIter    iter;
 879         const gchar   *smiley;
 880
 881         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 882
 883         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 884
 885         gtk_text_buffer_get_end_iter (buffer, &iter);
 886         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 887
 888         gtk_text_buffer_get_end_iter (buffer, &iter);
 889         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 890 }
 891
 892 static void
 893 chat_text_populate_popup_cb (GtkTextView *view,
 894                              GtkMenu     *menu,
 895                              GossipChat  *chat)
 896 {
 897         GossipChatPriv  *priv;
 898         GtkTextBuffer   *buffer;
 899         GtkTextTagTable *table;
 900         GtkTextTag      *tag;
 901         gint             x, y;
 902         GtkTextIter      iter, start, end;
 903         GtkWidget       *item;
 904         gchar           *str = NULL;
 905         GossipChatSpell *chat_spell;
 906         GtkWidget       *smiley_menu;
 907
 908         priv = GET_PRIV (chat);
 909
 910         /* Add the emoticon menu. */
 911         item = gtk_separator_menu_item_new ();
 912         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 913         gtk_widget_show (item);
 914
 915         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 916         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 917         gtk_widget_show (item);
 918
 919         smiley_menu = gossip_chat_view_get_smiley_menu (
 920                 G_CALLBACK (chat_insert_smiley_activate_cb),
 921                 chat,
 922                 priv->tooltips);
 923         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 924
 925         /* Add the spell check menu item. */
 926         buffer = gtk_text_view_get_buffer (view);
 927         table = gtk_text_buffer_get_tag_table (buffer);
 928
 929         tag = gtk_text_tag_table_lookup (table, "misspelled");
 930
 931         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 932
 933         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 934                                                GTK_TEXT_WINDOW_WIDGET,
 935                                                x, y,
 936                                                &x, &y);
 937
 938         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 939
 940         start = end = iter;
 941
 942         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 943             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 944
 945                 str = gtk_text_buffer_get_text (buffer,
 946                                                 &start, &end, FALSE);
 947         }
 948
 949         if (G_STR_EMPTY (str)) {
 950                 return;
 951         }
 952
 953         chat_spell = chat_spell_new (chat, str, start, end);
 954
 955         g_object_set_data_full (G_OBJECT (menu),
 956                                 "chat_spell", chat_spell,
 957                                 (GDestroyNotify) chat_spell_free);
 958
 959         item = gtk_separator_menu_item_new ();
 960         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 961         gtk_widget_show (item);
 962
 963         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 964         g_signal_connect (item,
 965                           "activate",
 966                           G_CALLBACK (chat_text_check_word_spelling_cb),
 967                           chat_spell);
 968         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 969         gtk_widget_show (item);
 970 }
 971
 972 static void
 973 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 974                                   GossipChatSpell *chat_spell)
 975 {
 976 /*FIXME:        gossip_spell_dialog_show (chat_spell->chat,
 977                                   chat_spell->start,
 978                                   chat_spell->end,
 979                                   chat_spell->word);*/
 980 }
 981
 982 static GossipChatSpell *
 983 chat_spell_new (GossipChat  *chat,
 984                 const gchar *word,
 985                 GtkTextIter  start,
 986                 GtkTextIter  end)
 987 {
 988         GossipChatSpell *chat_spell;
 989
 990         chat_spell = g_new0 (GossipChatSpell, 1);
 991
 992         chat_spell->chat = g_object_ref (chat);
 993         chat_spell->word = g_strdup (word);
 994         chat_spell->start = start;
 995         chat_spell->end = end;
 996
 997         return chat_spell;
 998 }
 999
1000 static void
1001 chat_spell_free (GossipChatSpell *chat_spell)
1002 {
1003         g_object_unref (chat_spell->chat);
1004         g_free (chat_spell->word);
1005         g_free (chat_spell);
1006 }
1007
1008 static void
1009 chat_composing_start (GossipChat *chat)
1010 {
1011         GossipChatPriv *priv;
1012
1013         priv = GET_PRIV (chat);
1014
1015         if (priv->composing_stop_timeout_id) {
1016                 /* Just restart the timeout */
1017                 chat_composing_remove_timeout (chat);
1018         } else {
1019                 empathy_tp_chat_set_state (priv->tp_chat,
1020                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
1021         }
1022
1023         priv->composing_stop_timeout_id = g_timeout_add (
1024                 1000 * COMPOSING_STOP_TIMEOUT,
1025                 (GSourceFunc) chat_composing_stop_timeout_cb,
1026                 chat);
1027 }
1028
1029 static void
1030 chat_composing_stop (GossipChat *chat)
1031 {
1032         GossipChatPriv *priv;
1033
1034         priv = GET_PRIV (chat);
1035
1036         chat_composing_remove_timeout (chat);
1037         empathy_tp_chat_set_state (priv->tp_chat,
1038                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1039 }
1040
1041 static void
1042 chat_composing_remove_timeout (GossipChat *chat)
1043 {
1044         GossipChatPriv *priv;
1045
1046         priv = GET_PRIV (chat);
1047
1048         if (priv->composing_stop_timeout_id) {
1049                 g_source_remove (priv->composing_stop_timeout_id);
1050                 priv->composing_stop_timeout_id = 0;
1051         }
1052 }
1053
1054 static gboolean
1055 chat_composing_stop_timeout_cb (GossipChat *chat)
1056 {
1057         GossipChatPriv *priv;
1058
1059         priv = GET_PRIV (chat);
1060
1061         priv->composing_stop_timeout_id = 0;
1062         empathy_tp_chat_set_state (priv->tp_chat,
1063                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1064
1065         return FALSE;
1066 }
1067
1068 static void
1069 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1070                        GossipContact             *contact,
1071                        TelepathyChannelChatState  state,
1072                        GossipChat                *chat)
1073 {
1074         GossipChatPriv *priv;
1075         GossipContact  *own_contact;
1076         GList          *l;
1077         gboolean        was_composing;
1078
1079         priv = GET_PRIV (chat);
1080
1081         own_contact = gossip_contact_get_user (contact);
1082         if (gossip_contact_equal (own_contact, contact)) {
1083                 /* We don't care about our own chat state */
1084                 return;
1085         }
1086
1087         was_composing = (priv->compositors != NULL);
1088
1089         /* Find the contact in the list. After that l is the list elem or NULL */
1090         for (l = priv->compositors; l; l = l->next) {
1091                 if (gossip_contact_equal (contact, l->data)) {
1092                         break;
1093                 }
1094         }
1095
1096         switch (state) {
1097         case TP_CHANNEL_CHAT_STATE_GONE:
1098         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1099         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1100                 /* Contact is not composing */
1101                 if (l) {
1102                         priv->compositors = g_list_remove_link (priv->compositors, l);
1103                         g_object_unref (l->data);
1104                         g_list_free1 (l);
1105                 }
1106                 break;
1107         case TP_CHANNEL_CHAT_STATE_PAUSED:
1108         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1109                 /* Contact is composing */
1110                 if (!l) {
1111                         priv->compositors = g_list_prepend (priv->compositors,
1112                                                             g_object_ref (contact));
1113                 }
1114                 break;
1115         default:
1116                 g_assert_not_reached ();
1117         }
1118
1119         gossip_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1120                       was_composing ? "yes" : "no",
1121                       priv->compositors ? "yes" : "no");
1122
1123         if ((was_composing && !priv->compositors) ||
1124             (!was_composing && priv->compositors)) {
1125                 /* Composing state changed */
1126                 g_signal_emit (chat, signals[COMPOSING], 0,
1127                                (gboolean) priv->compositors);
1128         }
1129 }
1130
1131 /* Scroll down after the back-log has been received. */
1132 static gboolean
1133 chat_scroll_down_idle_func (GossipChat *chat)
1134 {
1135         GossipChatPriv *priv;
1136
1137         priv = GET_PRIV (chat);
1138
1139         gossip_chat_scroll_down (chat);
1140         g_object_unref (chat);
1141
1142         priv->scroll_idle_id = 0;
1143
1144         return FALSE;
1145 }
1146
1147 gboolean
1148 gossip_chat_get_is_command (const gchar *str)
1149 {
1150         g_return_val_if_fail (str != NULL, FALSE);
1151
1152         if (str[0] != '/') {
1153                 return FALSE;
1154         }
1155
1156         if (g_str_has_prefix (str, "/me")) {
1157                 return TRUE;
1158         }
1159         else if (g_str_has_prefix (str, "/nick")) {
1160                 return TRUE;
1161         }
1162         else if (g_str_has_prefix (str, "/topic")) {
1163                 return TRUE;
1164         }
1165
1166         return FALSE;
1167 }
1168
1169 void
1170 gossip_chat_correct_word (GossipChat  *chat,
1171                           GtkTextIter  start,
1172                           GtkTextIter  end,
1173                           const gchar *new_word)
1174 {
1175         GtkTextBuffer *buffer;
1176
1177         g_return_if_fail (chat != NULL);
1178         g_return_if_fail (new_word != NULL);
1179
1180         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1181
1182         gtk_text_buffer_delete (buffer, &start, &end);
1183         gtk_text_buffer_insert (buffer, &start,
1184                                 new_word,
1185                                 -1);
1186 }
1187
1188 const gchar *
1189 gossip_chat_get_name (GossipChat *chat)
1190 {
1191         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1192
1193         if (GOSSIP_CHAT_GET_CLASS (chat)->get_name) {
1194                 return GOSSIP_CHAT_GET_CLASS (chat)->get_name (chat);
1195         }
1196
1197         return NULL;
1198 }
1199
1200 gchar *
1201 gossip_chat_get_tooltip (GossipChat *chat)
1202 {
1203         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1204
1205         if (GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip) {
1206                 return GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1207         }
1208
1209         return NULL;
1210 }
1211
1212 const gchar *
1213 gossip_chat_get_status_icon_name (GossipChat *chat)
1214 {
1215         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1216
1217         if (GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1218                 return GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1219         }
1220
1221         return NULL;
1222 }
1223
1224 GtkWidget *
1225 gossip_chat_get_widget (GossipChat *chat)
1226 {
1227         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1228
1229         if (GOSSIP_CHAT_GET_CLASS (chat)->get_widget) {
1230                 return GOSSIP_CHAT_GET_CLASS (chat)->get_widget (chat);
1231         }
1232
1233         return NULL;
1234 }
1235
1236 gboolean
1237 gossip_chat_is_group_chat (GossipChat *chat)
1238 {
1239         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1240
1241         if (GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat) {
1242                 return GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1243         }
1244
1245         return FALSE;
1246 }
1247
1248 gboolean
1249 gossip_chat_is_connected (GossipChat *chat)
1250 {
1251         GossipChatPriv *priv;
1252
1253         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1254
1255         priv = GET_PRIV (chat);
1256
1257         return (priv->tp_chat != NULL);
1258 }
1259
1260 void
1261 gossip_chat_save_geometry (GossipChat *chat,
1262                            gint        x,
1263                            gint        y,
1264                            gint        w,
1265                            gint        h)
1266 {
1267         gossip_geometry_save (gossip_chat_get_id (chat), x, y, w, h);
1268 }
1269
1270 void
1271 gossip_chat_load_geometry (GossipChat *chat,
1272                            gint       *x,
1273                            gint       *y,
1274                            gint       *w,
1275                            gint       *h)
1276 {
1277         gossip_geometry_load (gossip_chat_get_id (chat), x, y, w, h);
1278 }
1279
1280 void
1281 gossip_chat_set_tp_chat (GossipChat    *chat,
1282                          EmpathyTpChat *tp_chat)
1283 {
1284         GossipChatPriv *priv;
1285         GtkWidget      *widget;
1286
1287         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1288         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1289
1290         priv = GET_PRIV (chat);
1291
1292         if (tp_chat == priv->tp_chat) {
1293                 return;
1294         }
1295
1296         if (priv->tp_chat) {
1297                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1298                                                       chat_message_received_cb,
1299                                                       chat);
1300                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1301                                                       chat_destroy_cb,
1302                                                       chat);
1303                 g_object_unref (priv->tp_chat);
1304         }
1305
1306         g_free (priv->id);
1307         priv->tp_chat = g_object_ref (tp_chat);
1308         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1309
1310         g_signal_connect (tp_chat, "message-received",
1311                           G_CALLBACK (chat_message_received_cb),
1312                           chat);
1313         g_signal_connect (tp_chat, "chat-state-changed",
1314                           G_CALLBACK (chat_state_changed_cb),
1315                           chat);
1316         g_signal_connect (tp_chat, "destroy",
1317                           G_CALLBACK (chat_destroy_cb),
1318                           chat);
1319
1320         empathy_tp_chat_request_pending (tp_chat);
1321
1322         if (!priv->sensitive) {
1323                 widget = gossip_chat_get_widget (chat);
1324                 gtk_widget_set_sensitive (widget, TRUE);
1325                 gossip_chat_view_append_event (chat->view, _("Connected"));
1326                 priv->sensitive = TRUE;
1327         }
1328 }
1329
1330 const gchar *
1331 gossip_chat_get_id (GossipChat *chat)
1332 {
1333         GossipChatPriv *priv;
1334
1335         priv = GET_PRIV (chat);
1336
1337         return priv->id;
1338 }
1339
1340 void
1341 gossip_chat_clear (GossipChat *chat)
1342 {
1343         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1344
1345         gossip_chat_view_clear (chat->view);
1346 }
1347
1348 void
1349 gossip_chat_set_window (GossipChat       *chat,
1350                         GossipChatWindow *window)
1351 {
1352         GossipChatPriv *priv;
1353
1354         priv = GET_PRIV (chat);
1355         priv->window = window;
1356 }
1357
1358 GossipChatWindow *
1359 gossip_chat_get_window (GossipChat *chat)
1360 {
1361         GossipChatPriv *priv;
1362
1363         priv = GET_PRIV (chat);
1364
1365         return priv->window;
1366 }
1367
1368 void
1369 gossip_chat_scroll_down (GossipChat *chat)
1370 {
1371         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1372
1373         gossip_chat_view_scroll_down (chat->view);
1374 }
1375
1376 void
1377 gossip_chat_cut (GossipChat *chat)
1378 {
1379         GtkTextBuffer *buffer;
1380
1381         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1382
1383         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1384         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1385                 GtkClipboard *clipboard;
1386
1387                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1388
1389                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1390         }
1391 }
1392
1393 void
1394 gossip_chat_copy (GossipChat *chat)
1395 {
1396         GtkTextBuffer *buffer;
1397
1398         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1399
1400         if (gossip_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1401                 gossip_chat_view_copy_clipboard (chat->view);
1402                 return;
1403         }
1404
1405         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1406         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1407                 GtkClipboard *clipboard;
1408
1409                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1410
1411                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1412         }
1413 }
1414
1415 void
1416 gossip_chat_paste (GossipChat *chat)
1417 {
1418         GtkTextBuffer *buffer;
1419         GtkClipboard  *clipboard;
1420
1421         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1422
1423         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1424         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1425
1426         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1427 }
1428
1429 void
1430 gossip_chat_present (GossipChat *chat)
1431 {
1432         GossipChatPriv *priv;
1433
1434         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1435
1436         priv = GET_PRIV (chat);
1437
1438         if (priv->window == NULL) {
1439                 GossipChatWindow *window;
1440
1441                 window = gossip_chat_window_get_default ();
1442                 if (!window) {
1443                         window = gossip_chat_window_new ();
1444                 }
1445
1446                 gossip_chat_window_add_chat (window, chat);
1447         }
1448
1449         gossip_chat_window_switch_to_chat (priv->window, chat);
1450         gossip_window_present (
1451                 GTK_WINDOW (gossip_chat_window_get_dialog (priv->window)),
1452                 TRUE);
1453
1454         gtk_widget_grab_focus (chat->input_text_view);
1455 }
1456
1457 gboolean
1458 gossip_chat_should_play_sound (GossipChat *chat)
1459 {
1460         GossipChatWindow *window;
1461         gboolean          play = TRUE;
1462
1463         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1464
1465         window = gossip_chat_get_window (chat);
1466         if (!window) {
1467                 return TRUE;
1468         }
1469
1470         play = !gossip_chat_window_has_focus (window);
1471
1472         return play;
1473 }
1474
1475 gboolean
1476 gossip_chat_should_highlight_nick (GossipMessage *message)
1477 {
1478         GossipContact *my_contact;
1479         const gchar   *msg, *to;
1480         gchar         *cf_msg, *cf_to;
1481         gchar         *ch;
1482         gboolean       ret_val;
1483
1484         g_return_val_if_fail (GOSSIP_IS_MESSAGE (message), FALSE);
1485
1486         gossip_debug (DEBUG_DOMAIN, "Highlighting nickname");
1487
1488         ret_val = FALSE;
1489
1490         msg = gossip_message_get_body (message);
1491         if (!msg) {
1492                 return FALSE;
1493         }
1494
1495         my_contact = gossip_contact_get_user (gossip_message_get_sender (message));
1496         to = gossip_contact_get_name (my_contact);
1497         if (!to) {
1498                 return FALSE;
1499         }
1500
1501         cf_msg = g_utf8_casefold (msg, -1);
1502         cf_to = g_utf8_casefold (to, -1);
1503
1504         ch = strstr (cf_msg, cf_to);
1505         if (ch == NULL) {
1506                 goto finished;
1507         }
1508
1509         if (ch != cf_msg) {
1510                 /* Not first in the message */
1511                 if ((*(ch - 1) != ' ') &&
1512                     (*(ch - 1) != ',') &&
1513                     (*(ch - 1) != '.')) {
1514                         goto finished;
1515                 }
1516         }
1517
1518         ch = ch + strlen (cf_to);
1519         if (ch >= cf_msg + strlen (cf_msg)) {
1520                 ret_val = TRUE;
1521                 goto finished;
1522         }
1523
1524         if ((*ch == ' ') ||
1525             (*ch == ',') ||
1526             (*ch == '.') ||
1527             (*ch == ':')) {
1528                 ret_val = TRUE;
1529                 goto finished;
1530         }
1531
1532 finished:
1533         g_free (cf_msg);
1534         g_free (cf_to);
1535
1536         return ret_val;
1537 }
1538