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 = g_object_ref_sink (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         g_object_unref (priv->tooltips);
 341
 342         if (priv->tp_chat) {
 343                 g_object_unref (priv->tp_chat);
 344         }
 345
 346         if (priv->scroll_idle_id) {
 347                 g_source_remove (priv->scroll_idle_id);
 348         }
 349
 350         g_free (priv->id);
 351
 352         G_OBJECT_CLASS (gossip_chat_parent_class)->finalize (object);
 353 }
 354
 355 static void
 356 chat_destroy_cb (EmpathyTpChat *tp_chat,
 357                  GossipChat    *chat)
 358 {
 359         GossipChatPriv *priv;
 360         GtkWidget      *widget;
 361
 362         priv = GET_PRIV (chat);
 363
 364         if (priv->tp_chat) {
 365                 g_object_unref (priv->tp_chat);
 366                 priv->tp_chat = NULL;
 367         }
 368
 369         gossip_chat_view_append_event (chat->view, _("Disconnected"));
 370
 371         widget = gossip_chat_get_widget (chat);
 372         gtk_widget_set_sensitive (widget, FALSE);
 373         priv->sensitive = FALSE;
 374 }
 375
 376 static void
 377 chat_send (GossipChat  *chat,
 378            const gchar *msg)
 379 {
 380         GossipChatPriv   *priv;
 381         //GossipLogManager *log_manager;
 382         GossipMessage    *message;
 383         GossipContact    *own_contact;
 384
 385         priv = GET_PRIV (chat);
 386
 387         if (G_STR_EMPTY (msg)) {
 388                 return;
 389         }
 390
 391         chat_sent_message_add (chat, msg);
 392
 393         if (g_str_has_prefix (msg, "/clear")) {
 394                 gossip_chat_view_clear (chat->view);
 395                 return;
 396         }
 397
 398         /* FIXME: add here something to let group/privrate chat handle
 399          *        some special messages */
 400
 401         /* FIXME: gossip_app_set_not_away ();*/
 402
 403         own_contact = empathy_contact_manager_get_user (priv->manager, chat->account);
 404         message = gossip_message_new (msg);
 405         gossip_message_set_sender (message, own_contact);
 406
 407         //FIXME: log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 408         //gossip_log_message_for_contact (log_manager, message, FALSE);
 409
 410         empathy_tp_chat_send (priv->tp_chat, message);
 411
 412         g_object_unref (message);
 413 }
 414
 415 static void
 416 chat_input_text_view_send (GossipChat *chat)
 417 {
 418         GossipChatPriv *priv;
 419         GtkTextBuffer  *buffer;
 420         GtkTextIter     start, end;
 421         gchar          *msg;
 422
 423         priv = GET_PRIV (chat);
 424
 425         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 426
 427         gtk_text_buffer_get_bounds (buffer, &start, &end);
 428         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 429
 430         /* clear the input field */
 431         gtk_text_buffer_set_text (buffer, "", -1);
 432
 433         chat_send (chat, msg);
 434
 435         g_free (msg);
 436
 437         chat->is_first_char = TRUE;
 438 }
 439
 440 static void
 441 chat_message_received_cb (EmpathyTpChat *tp_chat,
 442                           GossipMessage *message,
 443                           GossipChat    *chat)
 444 {
 445         GossipChatPriv *priv;
 446         //GossipLogManager      *log_manager;
 447         GossipContact         *sender;
 448
 449         priv = GET_PRIV (chat);
 450
 451         sender = gossip_message_get_sender (message);
 452         gossip_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 453                       gossip_contact_get_name (sender));
 454
 455 /*FIXME:
 456         log_manager = gossip_session_get_log_manager (gossip_app_get_session ());
 457         gossip_log_message_for_contact (log_manager, message, TRUE);
 458 */
 459         gossip_chat_view_append_message (chat->view, message);
 460
 461         if (gossip_chat_should_play_sound (chat)) {
 462                 // FIXME: gossip_sound_play (GOSSIP_SOUND_CHAT);
 463         }
 464
 465         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 466 }
 467
 468 void
 469 chat_sent_message_add (GossipChat  *chat,
 470                        const gchar *str)
 471 {
 472         GossipChatPriv *priv;
 473         GSList         *list;
 474         GSList         *item;
 475
 476         priv = GET_PRIV (chat);
 477
 478         /* Save the sent message in our repeat buffer */
 479         list = priv->sent_messages;
 480
 481         /* Remove any other occurances of this msg */
 482         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 483                 list = g_slist_remove_link (list, item);
 484                 g_free (item->data);
 485                 g_slist_free1 (item);
 486         }
 487
 488         /* Trim the list to the last 10 items */
 489         while (g_slist_length (list) > 10) {
 490                 item = g_slist_last (list);
 491                 if (item) {
 492                         list = g_slist_remove_link (list, item);
 493                         g_free (item->data);
 494                         g_slist_free1 (item);
 495                 }
 496         }
 497
 498         /* Add new message */
 499         list = g_slist_prepend (list, g_strdup (str));
 500
 501         /* Set list and reset the index */
 502         priv->sent_messages = list;
 503         priv->sent_messages_index = -1;
 504 }
 505
 506 const gchar *
 507 chat_sent_message_get_next (GossipChat *chat)
 508 {
 509         GossipChatPriv *priv;
 510         gint            max;
 511
 512         priv = GET_PRIV (chat);
 513
 514         if (!priv->sent_messages) {
 515                 gossip_debug (DEBUG_DOMAIN,
 516                               "No sent messages, next message is NULL");
 517                 return NULL;
 518         }
 519
 520         max = g_slist_length (priv->sent_messages) - 1;
 521
 522         if (priv->sent_messages_index < max) {
 523                 priv->sent_messages_index++;
 524         }
 525
 526         gossip_debug (DEBUG_DOMAIN,
 527                       "Returning next message index:%d",
 528                       priv->sent_messages_index);
 529
 530         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 531 }
 532
 533 const gchar *
 534 chat_sent_message_get_last (GossipChat *chat)
 535 {
 536         GossipChatPriv *priv;
 537
 538         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
 539
 540         priv = GET_PRIV (chat);
 541
 542         if (!priv->sent_messages) {
 543                 gossip_debug (DEBUG_DOMAIN,
 544                               "No sent messages, last message is NULL");
 545                 return NULL;
 546         }
 547
 548         if (priv->sent_messages_index >= 0) {
 549                 priv->sent_messages_index--;
 550         }
 551
 552         gossip_debug (DEBUG_DOMAIN,
 553                       "Returning last message index:%d",
 554                       priv->sent_messages_index);
 555
 556         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 557 }
 558
 559 static gboolean
 560 chat_input_key_press_event_cb (GtkWidget   *widget,
 561                                GdkEventKey *event,
 562                                GossipChat  *chat)
 563 {
 564         GossipChatPriv *priv;
 565         GtkAdjustment  *adj;
 566         gdouble         val;
 567         GtkWidget      *text_view_sw;
 568
 569         priv = GET_PRIV (chat);
 570
 571         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 572                 return TRUE;
 573         }
 574
 575         /* Catch ctrl+up/down so we can traverse messages we sent */
 576         if ((event->state & GDK_CONTROL_MASK) &&
 577             (event->keyval == GDK_Up ||
 578              event->keyval == GDK_Down)) {
 579                 GtkTextBuffer *buffer;
 580                 const gchar   *str;
 581
 582                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 583
 584                 if (event->keyval == GDK_Up) {
 585                         str = chat_sent_message_get_next (chat);
 586                 } else {
 587                         str = chat_sent_message_get_last (chat);
 588                 }
 589
 590                 g_signal_handlers_block_by_func (buffer,
 591                                                  chat_input_text_buffer_changed_cb,
 592                                                  chat);
 593                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 594                 g_signal_handlers_unblock_by_func (buffer,
 595                                                    chat_input_text_buffer_changed_cb,
 596                                                    chat);
 597
 598                 return TRUE;
 599         }
 600
 601         /* Catch enter but not ctrl/shift-enter */
 602         if (IS_ENTER (event->keyval) && !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 603                 GtkTextView *view;
 604
 605                 /* This is to make sure that kinput2 gets the enter. And if
 606                  * it's handled there we shouldn't send on it. This is because
 607                  * kinput2 uses Enter to commit letters. See:
 608                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 609                  */
 610
 611                 view = GTK_TEXT_VIEW (chat->input_text_view);
 612                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 613                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 614                         return TRUE;
 615                 }
 616
 617                 chat_input_text_view_send (chat);
 618                 return TRUE;
 619         }
 620
 621         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 622
 623         if (IS_ENTER (event->keyval) && (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 624                 /* Newline for shift-enter. */
 625                 return FALSE;
 626         }
 627         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 628                  event->keyval == GDK_Page_Up) {
 629                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 630                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 631
 632                 return TRUE;
 633         }
 634         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 635                  event->keyval == GDK_Page_Down) {
 636                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 637                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 638                 gtk_adjustment_set_value (adj, val);
 639
 640                 return TRUE;
 641         }
 642
 643         return FALSE;
 644 }
 645
 646 static gboolean
 647 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 648                                   GdkEvent   *event,
 649                                   GossipChat *chat)
 650 {
 651         gtk_widget_grab_focus (chat->input_text_view);
 652
 653         return TRUE;
 654 }
 655
 656 static void
 657 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 658                                    GossipChat    *chat)
 659 {
 660         GossipChatPriv *priv;
 661         GtkTextIter     start, end;
 662         gchar          *str;
 663         gboolean        spell_checker = FALSE;
 664
 665         priv = GET_PRIV (chat);
 666
 667         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 668                 chat_composing_stop (chat);
 669         } else {
 670                 chat_composing_start (chat);
 671         }
 672
 673         gossip_conf_get_bool (gossip_conf_get (),
 674                               GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 675                               &spell_checker);
 676
 677         if (chat->is_first_char) {
 678                 GtkRequisition  req;
 679                 gint            window_height;
 680                 GtkWidget      *dialog;
 681                 GtkAllocation  *allocation;
 682
 683                 /* Save the window's size */
 684                 dialog = gossip_chat_window_get_dialog (priv->window);
 685                 gtk_window_get_size (GTK_WINDOW (dialog),
 686                                      NULL, &window_height);
 687
 688                 gtk_widget_size_request (chat->input_text_view, &req);
 689
 690                 allocation = &GTK_WIDGET (chat->view)->allocation;
 691
 692                 priv->default_window_height = window_height;
 693                 priv->last_input_height = req.height;
 694                 priv->padding_height = window_height - req.height - allocation->height;
 695
 696                 chat->is_first_char = FALSE;
 697         }
 698
 699         gtk_text_buffer_get_start_iter (buffer, &start);
 700
 701         if (!spell_checker) {
 702                 gtk_text_buffer_get_end_iter (buffer, &end);
 703                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 704                 return;
 705         }
 706
 707         if (!gossip_spell_supported ()) {
 708                 return;
 709         }
 710
 711         /* NOTE: this is really inefficient, we shouldn't have to
 712            reiterate the whole buffer each time and check each work
 713            every time. */
 714         while (TRUE) {
 715                 gboolean correct = FALSE;
 716
 717                 /* if at start */
 718                 if (gtk_text_iter_is_start (&start)) {
 719                         end = start;
 720
 721                         if (!gtk_text_iter_forward_word_end (&end)) {
 722                                 /* no whole word yet */
 723                                 break;
 724                         }
 725                 } else {
 726                         if (!gtk_text_iter_forward_word_end (&end)) {
 727                                 /* must be the end of the buffer */
 728                                 break;
 729                         }
 730
 731                         start = end;
 732                         gtk_text_iter_backward_word_start (&start);
 733                 }
 734
 735                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 736
 737                 /* spell check string */
 738                 if (!gossip_chat_get_is_command (str)) {
 739                         correct = gossip_spell_check (str);
 740                 } else {
 741                         correct = TRUE;
 742                 }
 743
 744                 if (!correct) {
 745                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 746                 } else {
 747                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 748                 }
 749
 750                 g_free (str);
 751
 752                 /* set start iter to the end iters position */
 753                 start = end;
 754         }
 755 }
 756
 757 typedef struct {
 758         GtkWidget *window;
 759         gint       width;
 760         gint       height;
 761 } ChangeSizeData;
 762
 763 static gboolean
 764 chat_change_size_in_idle_cb (ChangeSizeData *data)
 765 {
 766         gtk_window_resize (GTK_WINDOW (data->window),
 767                            data->width, data->height);
 768
 769         return FALSE;
 770 }
 771
 772 static void
 773 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 774                                GossipChat *chat)
 775 {
 776         GossipChatPriv *priv;
 777         GtkWidget      *sw;
 778
 779         priv = GET_PRIV (chat);
 780
 781         priv->vscroll_visible = FALSE;
 782         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 783
 784         sw = gtk_widget_get_parent (chat->input_text_view);
 785         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 786                                         GTK_POLICY_NEVER,
 787                                         GTK_POLICY_NEVER);
 788         g_object_set (sw, "height-request", -1, NULL);
 789 }
 790
 791 static void
 792 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 793                                  GtkAllocation *allocation,
 794                                  GossipChat    *chat)
 795 {
 796         GossipChatPriv *priv;
 797         gint            width;
 798         GtkWidget      *dialog;
 799         ChangeSizeData *data;
 800         gint            window_height;
 801         gint            new_height;
 802         GtkAllocation  *view_allocation;
 803         gint            current_height;
 804         gint            diff;
 805         GtkWidget      *sw;
 806
 807         priv = GET_PRIV (chat);
 808
 809         if (priv->default_window_height <= 0) {
 810                 return;
 811         }
 812
 813         sw = gtk_widget_get_parent (widget);
 814         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 815                 GtkWidget *vscroll;
 816
 817                 priv->vscroll_visible = TRUE;
 818                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 819                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 820                                                 GTK_POLICY_NEVER,
 821                                                 GTK_POLICY_AUTOMATIC);
 822                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 823                 g_signal_connect (vscroll, "hide",
 824                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 825                                   chat);
 826         }
 827
 828         if (priv->last_input_height <= allocation->height) {
 829                 priv->last_input_height = allocation->height;
 830                 return;
 831         }
 832
 833         diff = priv->last_input_height - allocation->height;
 834         priv->last_input_height = allocation->height;
 835
 836         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 837
 838         dialog = gossip_chat_window_get_dialog (priv->window);
 839         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 840
 841         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 842
 843         if (new_height <= priv->default_window_height) {
 844                 window_height = priv->default_window_height;
 845         } else {
 846                 window_height = new_height;
 847         }
 848
 849         if (current_height <= window_height) {
 850                 return;
 851         }
 852
 853         /* Restore the window's size */
 854         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 855
 856         data = g_new0 (ChangeSizeData, 1);
 857         data->window = dialog;
 858         data->width  = width;
 859         data->height = window_height;
 860
 861         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 862                          (GSourceFunc) chat_change_size_in_idle_cb,
 863                          data, g_free);
 864 }
 865
 866 static void
 867 chat_text_view_realize_cb (GtkWidget  *widget,
 868                            GossipChat *chat)
 869 {
 870         gossip_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 871         gtk_widget_grab_focus (widget);
 872 }
 873
 874 static void
 875 chat_insert_smiley_activate_cb (GtkWidget  *menuitem,
 876                                 GossipChat *chat)
 877 {
 878         GtkTextBuffer *buffer;
 879         GtkTextIter    iter;
 880         const gchar   *smiley;
 881
 882         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 883
 884         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 885
 886         gtk_text_buffer_get_end_iter (buffer, &iter);
 887         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 888
 889         gtk_text_buffer_get_end_iter (buffer, &iter);
 890         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 891 }
 892
 893 static void
 894 chat_text_populate_popup_cb (GtkTextView *view,
 895                              GtkMenu     *menu,
 896                              GossipChat  *chat)
 897 {
 898         GossipChatPriv  *priv;
 899         GtkTextBuffer   *buffer;
 900         GtkTextTagTable *table;
 901         GtkTextTag      *tag;
 902         gint             x, y;
 903         GtkTextIter      iter, start, end;
 904         GtkWidget       *item;
 905         gchar           *str = NULL;
 906         GossipChatSpell *chat_spell;
 907         GtkWidget       *smiley_menu;
 908
 909         priv = GET_PRIV (chat);
 910
 911         /* Add the emoticon menu. */
 912         item = gtk_separator_menu_item_new ();
 913         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 914         gtk_widget_show (item);
 915
 916         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 917         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 918         gtk_widget_show (item);
 919
 920         smiley_menu = gossip_chat_view_get_smiley_menu (
 921                 G_CALLBACK (chat_insert_smiley_activate_cb),
 922                 chat,
 923                 priv->tooltips);
 924         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 925
 926         /* Add the spell check menu item. */
 927         buffer = gtk_text_view_get_buffer (view);
 928         table = gtk_text_buffer_get_tag_table (buffer);
 929
 930         tag = gtk_text_tag_table_lookup (table, "misspelled");
 931
 932         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 933
 934         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 935                                                GTK_TEXT_WINDOW_WIDGET,
 936                                                x, y,
 937                                                &x, &y);
 938
 939         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 940
 941         start = end = iter;
 942
 943         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 944             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 945
 946                 str = gtk_text_buffer_get_text (buffer,
 947                                                 &start, &end, FALSE);
 948         }
 949
 950         if (G_STR_EMPTY (str)) {
 951                 return;
 952         }
 953
 954         chat_spell = chat_spell_new (chat, str, start, end);
 955
 956         g_object_set_data_full (G_OBJECT (menu),
 957                                 "chat_spell", chat_spell,
 958                                 (GDestroyNotify) chat_spell_free);
 959
 960         item = gtk_separator_menu_item_new ();
 961         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 962         gtk_widget_show (item);
 963
 964         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 965         g_signal_connect (item,
 966                           "activate",
 967                           G_CALLBACK (chat_text_check_word_spelling_cb),
 968                           chat_spell);
 969         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 970         gtk_widget_show (item);
 971 }
 972
 973 static void
 974 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 975                                   GossipChatSpell *chat_spell)
 976 {
 977 /*FIXME:        gossip_spell_dialog_show (chat_spell->chat,
 978                                   chat_spell->start,
 979                                   chat_spell->end,
 980                                   chat_spell->word);*/
 981 }
 982
 983 static GossipChatSpell *
 984 chat_spell_new (GossipChat  *chat,
 985                 const gchar *word,
 986                 GtkTextIter  start,
 987                 GtkTextIter  end)
 988 {
 989         GossipChatSpell *chat_spell;
 990
 991         chat_spell = g_new0 (GossipChatSpell, 1);
 992
 993         chat_spell->chat = g_object_ref (chat);
 994         chat_spell->word = g_strdup (word);
 995         chat_spell->start = start;
 996         chat_spell->end = end;
 997
 998         return chat_spell;
 999 }
1000
1001 static void
1002 chat_spell_free (GossipChatSpell *chat_spell)
1003 {
1004         g_object_unref (chat_spell->chat);
1005         g_free (chat_spell->word);
1006         g_free (chat_spell);
1007 }
1008
1009 static void
1010 chat_composing_start (GossipChat *chat)
1011 {
1012         GossipChatPriv *priv;
1013
1014         priv = GET_PRIV (chat);
1015
1016         if (priv->composing_stop_timeout_id) {
1017                 /* Just restart the timeout */
1018                 chat_composing_remove_timeout (chat);
1019         } else {
1020                 empathy_tp_chat_set_state (priv->tp_chat,
1021                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
1022         }
1023
1024         priv->composing_stop_timeout_id = g_timeout_add (
1025                 1000 * COMPOSING_STOP_TIMEOUT,
1026                 (GSourceFunc) chat_composing_stop_timeout_cb,
1027                 chat);
1028 }
1029
1030 static void
1031 chat_composing_stop (GossipChat *chat)
1032 {
1033         GossipChatPriv *priv;
1034
1035         priv = GET_PRIV (chat);
1036
1037         chat_composing_remove_timeout (chat);
1038         empathy_tp_chat_set_state (priv->tp_chat,
1039                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1040 }
1041
1042 static void
1043 chat_composing_remove_timeout (GossipChat *chat)
1044 {
1045         GossipChatPriv *priv;
1046
1047         priv = GET_PRIV (chat);
1048
1049         if (priv->composing_stop_timeout_id) {
1050                 g_source_remove (priv->composing_stop_timeout_id);
1051                 priv->composing_stop_timeout_id = 0;
1052         }
1053 }
1054
1055 static gboolean
1056 chat_composing_stop_timeout_cb (GossipChat *chat)
1057 {
1058         GossipChatPriv *priv;
1059
1060         priv = GET_PRIV (chat);
1061
1062         priv->composing_stop_timeout_id = 0;
1063         empathy_tp_chat_set_state (priv->tp_chat,
1064                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1065
1066         return FALSE;
1067 }
1068
1069 static void
1070 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1071                        GossipContact             *contact,
1072                        TelepathyChannelChatState  state,
1073                        GossipChat                *chat)
1074 {
1075         GossipChatPriv *priv;
1076         GossipContact  *own_contact;
1077         GList          *l;
1078         gboolean        was_composing;
1079
1080         priv = GET_PRIV (chat);
1081
1082         own_contact = gossip_contact_get_user (contact);
1083         if (gossip_contact_equal (own_contact, contact)) {
1084                 /* We don't care about our own chat state */
1085                 return;
1086         }
1087
1088         was_composing = (priv->compositors != NULL);
1089
1090         /* Find the contact in the list. After that l is the list elem or NULL */
1091         for (l = priv->compositors; l; l = l->next) {
1092                 if (gossip_contact_equal (contact, l->data)) {
1093                         break;
1094                 }
1095         }
1096
1097         switch (state) {
1098         case TP_CHANNEL_CHAT_STATE_GONE:
1099         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1100         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1101                 /* Contact is not composing */
1102                 if (l) {
1103                         priv->compositors = g_list_remove_link (priv->compositors, l);
1104                         g_object_unref (l->data);
1105                         g_list_free1 (l);
1106                 }
1107                 break;
1108         case TP_CHANNEL_CHAT_STATE_PAUSED:
1109         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1110                 /* Contact is composing */
1111                 if (!l) {
1112                         priv->compositors = g_list_prepend (priv->compositors,
1113                                                             g_object_ref (contact));
1114                 }
1115                 break;
1116         default:
1117                 g_assert_not_reached ();
1118         }
1119
1120         gossip_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1121                       was_composing ? "yes" : "no",
1122                       priv->compositors ? "yes" : "no");
1123
1124         if ((was_composing && !priv->compositors) ||
1125             (!was_composing && priv->compositors)) {
1126                 /* Composing state changed */
1127                 g_signal_emit (chat, signals[COMPOSING], 0,
1128                                (gboolean) priv->compositors);
1129         }
1130 }
1131
1132 /* Scroll down after the back-log has been received. */
1133 static gboolean
1134 chat_scroll_down_idle_func (GossipChat *chat)
1135 {
1136         GossipChatPriv *priv;
1137
1138         priv = GET_PRIV (chat);
1139
1140         gossip_chat_scroll_down (chat);
1141         g_object_unref (chat);
1142
1143         priv->scroll_idle_id = 0;
1144
1145         return FALSE;
1146 }
1147
1148 gboolean
1149 gossip_chat_get_is_command (const gchar *str)
1150 {
1151         g_return_val_if_fail (str != NULL, FALSE);
1152
1153         if (str[0] != '/') {
1154                 return FALSE;
1155         }
1156
1157         if (g_str_has_prefix (str, "/me")) {
1158                 return TRUE;
1159         }
1160         else if (g_str_has_prefix (str, "/nick")) {
1161                 return TRUE;
1162         }
1163         else if (g_str_has_prefix (str, "/topic")) {
1164                 return TRUE;
1165         }
1166
1167         return FALSE;
1168 }
1169
1170 void
1171 gossip_chat_correct_word (GossipChat  *chat,
1172                           GtkTextIter  start,
1173                           GtkTextIter  end,
1174                           const gchar *new_word)
1175 {
1176         GtkTextBuffer *buffer;
1177
1178         g_return_if_fail (chat != NULL);
1179         g_return_if_fail (new_word != NULL);
1180
1181         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1182
1183         gtk_text_buffer_delete (buffer, &start, &end);
1184         gtk_text_buffer_insert (buffer, &start,
1185                                 new_word,
1186                                 -1);
1187 }
1188
1189 const gchar *
1190 gossip_chat_get_name (GossipChat *chat)
1191 {
1192         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1193
1194         if (GOSSIP_CHAT_GET_CLASS (chat)->get_name) {
1195                 return GOSSIP_CHAT_GET_CLASS (chat)->get_name (chat);
1196         }
1197
1198         return NULL;
1199 }
1200
1201 gchar *
1202 gossip_chat_get_tooltip (GossipChat *chat)
1203 {
1204         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1205
1206         if (GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip) {
1207                 return GOSSIP_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1208         }
1209
1210         return NULL;
1211 }
1212
1213 const gchar *
1214 gossip_chat_get_status_icon_name (GossipChat *chat)
1215 {
1216         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1217
1218         if (GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1219                 return GOSSIP_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1220         }
1221
1222         return NULL;
1223 }
1224
1225 GtkWidget *
1226 gossip_chat_get_widget (GossipChat *chat)
1227 {
1228         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), NULL);
1229
1230         if (GOSSIP_CHAT_GET_CLASS (chat)->get_widget) {
1231                 return GOSSIP_CHAT_GET_CLASS (chat)->get_widget (chat);
1232         }
1233
1234         return NULL;
1235 }
1236
1237 gboolean
1238 gossip_chat_is_group_chat (GossipChat *chat)
1239 {
1240         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1241
1242         if (GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat) {
1243                 return GOSSIP_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1244         }
1245
1246         return FALSE;
1247 }
1248
1249 gboolean
1250 gossip_chat_is_connected (GossipChat *chat)
1251 {
1252         GossipChatPriv *priv;
1253
1254         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1255
1256         priv = GET_PRIV (chat);
1257
1258         return (priv->tp_chat != NULL);
1259 }
1260
1261 void
1262 gossip_chat_save_geometry (GossipChat *chat,
1263                            gint        x,
1264                            gint        y,
1265                            gint        w,
1266                            gint        h)
1267 {
1268         gossip_geometry_save (gossip_chat_get_id (chat), x, y, w, h);
1269 }
1270
1271 void
1272 gossip_chat_load_geometry (GossipChat *chat,
1273                            gint       *x,
1274                            gint       *y,
1275                            gint       *w,
1276                            gint       *h)
1277 {
1278         gossip_geometry_load (gossip_chat_get_id (chat), x, y, w, h);
1279 }
1280
1281 void
1282 gossip_chat_set_tp_chat (GossipChat    *chat,
1283                          EmpathyTpChat *tp_chat)
1284 {
1285         GossipChatPriv *priv;
1286         GtkWidget      *widget;
1287
1288         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1289         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1290
1291         priv = GET_PRIV (chat);
1292
1293         if (tp_chat == priv->tp_chat) {
1294                 return;
1295         }
1296
1297         if (priv->tp_chat) {
1298                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1299                                                       chat_message_received_cb,
1300                                                       chat);
1301                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1302                                                       chat_destroy_cb,
1303                                                       chat);
1304                 g_object_unref (priv->tp_chat);
1305         }
1306
1307         g_free (priv->id);
1308         priv->tp_chat = g_object_ref (tp_chat);
1309         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1310
1311         g_signal_connect (tp_chat, "message-received",
1312                           G_CALLBACK (chat_message_received_cb),
1313                           chat);
1314         g_signal_connect (tp_chat, "chat-state-changed",
1315                           G_CALLBACK (chat_state_changed_cb),
1316                           chat);
1317         g_signal_connect (tp_chat, "destroy",
1318                           G_CALLBACK (chat_destroy_cb),
1319                           chat);
1320
1321         empathy_tp_chat_request_pending (tp_chat);
1322
1323         if (!priv->sensitive) {
1324                 widget = gossip_chat_get_widget (chat);
1325                 gtk_widget_set_sensitive (widget, TRUE);
1326                 gossip_chat_view_append_event (chat->view, _("Connected"));
1327                 priv->sensitive = TRUE;
1328         }
1329 }
1330
1331 const gchar *
1332 gossip_chat_get_id (GossipChat *chat)
1333 {
1334         GossipChatPriv *priv;
1335
1336         priv = GET_PRIV (chat);
1337
1338         return priv->id;
1339 }
1340
1341 void
1342 gossip_chat_clear (GossipChat *chat)
1343 {
1344         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1345
1346         gossip_chat_view_clear (chat->view);
1347 }
1348
1349 void
1350 gossip_chat_set_window (GossipChat       *chat,
1351                         GossipChatWindow *window)
1352 {
1353         GossipChatPriv *priv;
1354
1355         priv = GET_PRIV (chat);
1356         priv->window = window;
1357 }
1358
1359 GossipChatWindow *
1360 gossip_chat_get_window (GossipChat *chat)
1361 {
1362         GossipChatPriv *priv;
1363
1364         priv = GET_PRIV (chat);
1365
1366         return priv->window;
1367 }
1368
1369 void
1370 gossip_chat_scroll_down (GossipChat *chat)
1371 {
1372         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1373
1374         gossip_chat_view_scroll_down (chat->view);
1375 }
1376
1377 void
1378 gossip_chat_cut (GossipChat *chat)
1379 {
1380         GtkTextBuffer *buffer;
1381
1382         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1383
1384         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1385         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1386                 GtkClipboard *clipboard;
1387
1388                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1389
1390                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1391         }
1392 }
1393
1394 void
1395 gossip_chat_copy (GossipChat *chat)
1396 {
1397         GtkTextBuffer *buffer;
1398
1399         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1400
1401         if (gossip_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1402                 gossip_chat_view_copy_clipboard (chat->view);
1403                 return;
1404         }
1405
1406         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1407         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1408                 GtkClipboard *clipboard;
1409
1410                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1411
1412                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1413         }
1414 }
1415
1416 void
1417 gossip_chat_paste (GossipChat *chat)
1418 {
1419         GtkTextBuffer *buffer;
1420         GtkClipboard  *clipboard;
1421
1422         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1423
1424         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1425         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1426
1427         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1428 }
1429
1430 void
1431 gossip_chat_present (GossipChat *chat)
1432 {
1433         GossipChatPriv *priv;
1434
1435         g_return_if_fail (GOSSIP_IS_CHAT (chat));
1436
1437         priv = GET_PRIV (chat);
1438
1439         if (priv->window == NULL) {
1440                 GossipChatWindow *window;
1441
1442                 window = gossip_chat_window_get_default ();
1443                 if (!window) {
1444                         window = gossip_chat_window_new ();
1445                 }
1446
1447                 gossip_chat_window_add_chat (window, chat);
1448         }
1449
1450         gossip_chat_window_switch_to_chat (priv->window, chat);
1451         gossip_window_present (
1452                 GTK_WINDOW (gossip_chat_window_get_dialog (priv->window)),
1453                 TRUE);
1454
1455         gtk_widget_grab_focus (chat->input_text_view);
1456 }
1457
1458 gboolean
1459 gossip_chat_should_play_sound (GossipChat *chat)
1460 {
1461         GossipChatWindow *window;
1462         gboolean          play = TRUE;
1463
1464         g_return_val_if_fail (GOSSIP_IS_CHAT (chat), FALSE);
1465
1466         window = gossip_chat_get_window (chat);
1467         if (!window) {
1468                 return TRUE;
1469         }
1470
1471         play = !gossip_chat_window_has_focus (window);
1472
1473         return play;
1474 }
1475
1476 gboolean
1477 gossip_chat_should_highlight_nick (GossipMessage *message)
1478 {
1479         GossipContact *my_contact;
1480         const gchar   *msg, *to;
1481         gchar         *cf_msg, *cf_to;
1482         gchar         *ch;
1483         gboolean       ret_val;
1484
1485         g_return_val_if_fail (GOSSIP_IS_MESSAGE (message), FALSE);
1486
1487         gossip_debug (DEBUG_DOMAIN, "Highlighting nickname");
1488
1489         ret_val = FALSE;
1490
1491         msg = gossip_message_get_body (message);
1492         if (!msg) {
1493                 return FALSE;
1494         }
1495
1496         my_contact = gossip_contact_get_user (gossip_message_get_sender (message));
1497         to = gossip_contact_get_name (my_contact);
1498         if (!to) {
1499                 return FALSE;
1500         }
1501
1502         cf_msg = g_utf8_casefold (msg, -1);
1503         cf_to = g_utf8_casefold (to, -1);
1504
1505         ch = strstr (cf_msg, cf_to);
1506         if (ch == NULL) {
1507                 goto finished;
1508         }
1509
1510         if (ch != cf_msg) {
1511                 /* Not first in the message */
1512                 if ((*(ch - 1) != ' ') &&
1513                     (*(ch - 1) != ',') &&
1514                     (*(ch - 1) != '.')) {
1515                         goto finished;
1516                 }
1517         }
1518
1519         ch = ch + strlen (cf_to);
1520         if (ch >= cf_msg + strlen (cf_msg)) {
1521                 ret_val = TRUE;
1522                 goto finished;
1523         }
1524
1525         if ((*ch == ' ') ||
1526             (*ch == ',') ||
1527             (*ch == '.') ||
1528             (*ch == ':')) {
1529                 ret_val = TRUE;
1530                 goto finished;
1531         }
1532
1533 finished:
1534         g_free (cf_msg);
1535         g_free (cf_to);
1536
1537         return ret_val;
1538 }
1539