libempathy-gtk/empathy-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
  37 #include <libempathy/empathy-contact-manager.h>
  38 #include <libempathy/empathy-log-manager.h>
  39 #include <libempathy/empathy-debug.h>
  40 #include <libempathy/empathy-utils.h>
  41 #include <libempathy/empathy-conf.h>
  42 #include <libempathy/empathy-marshal.h>
  43
  44 #include "empathy-chat.h"
  45 #include "empathy-chat-window.h"
  46 #include "empathy-geometry.h"
  47 #include "empathy-preferences.h"
  48 #include "empathy-spell.h"
  49 #include "empathy-spell-dialog.h"
  50 #include "empathy-ui-utils.h"
  51
  52 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT, EmpathyChatPriv))
  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 _EmpathyChatPriv {
  66         EmpathyLogManager     *log_manager;
  67         EmpathyTpChat         *tp_chat;
  68         EmpathyChatWindow      *window;
  69         guint                  composing_stop_timeout_id;
  70         gboolean               sensitive;
  71         gchar                 *id;
  72         GSList                *sent_messages;
  73         gint                   sent_messages_index;
  74         GList                 *compositors;
  75         guint                  scroll_idle_id;
  76         gboolean               first_tp_chat;
  77         time_t                 last_log_timestamp;
  78         /* Used to automatically shrink a window that has temporarily
  79          * grown due to long input.
  80          */
  81         gint                   padding_height;
  82         gint                   default_window_height;
  83         gint                   last_input_height;
  84         gboolean               vscroll_visible;
  85 };
  86
  87 typedef struct {
  88         EmpathyChat  *chat;
  89         gchar       *word;
  90
  91         GtkTextIter  start;
  92         GtkTextIter  end;
  93 } EmpathyChatSpell;
  94
  95 static void             empathy_chat_class_init           (EmpathyChatClass       *klass);
  96 static void             empathy_chat_init                 (EmpathyChat            *chat);
  97 static void             chat_finalize                     (GObject                *object);
  98 static void             chat_destroy_cb                   (EmpathyTpChat          *tp_chat,
  99                                                            EmpathyChat            *chat);
 100 static void             chat_send                         (EmpathyChat            *chat,
 101                                                            const gchar            *msg);
 102 static void             chat_input_text_view_send         (EmpathyChat            *chat);
 103 static void             chat_message_received_cb          (EmpathyTpChat          *tp_chat,
 104                                                            EmpathyMessage         *message,
 105                                                            EmpathyChat            *chat);
 106 static void             chat_send_error_cb                (EmpathyTpChat          *tp_chat,
 107                                                            EmpathyMessage         *message,
 108                                                            TpChannelTextSendError  error_code,
 109                                                            EmpathyChat            *chat);
 110 void                    chat_sent_message_add             (EmpathyChat            *chat,
 111                                                            const gchar            *str);
 112 const gchar *           chat_sent_message_get_next        (EmpathyChat            *chat);
 113 const gchar *           chat_sent_message_get_last        (EmpathyChat            *chat);
 114 static gboolean         chat_input_key_press_event_cb     (GtkWidget              *widget,
 115                                                            GdkEventKey            *event,
 116                                                            EmpathyChat            *chat);
 117 static void             chat_input_text_buffer_changed_cb (GtkTextBuffer          *buffer,
 118                                                            EmpathyChat            *chat);
 119 static gboolean         chat_text_view_focus_in_event_cb  (GtkWidget              *widget,
 120                                                            GdkEvent               *event,
 121                                                            EmpathyChat            *chat);
 122 static void             chat_text_view_scroll_hide_cb     (GtkWidget              *widget,
 123                                                            EmpathyChat            *chat);
 124 static void             chat_text_view_size_allocate_cb   (GtkWidget              *widget,
 125                                                            GtkAllocation          *allocation,
 126                                                            EmpathyChat            *chat);
 127 static void             chat_text_view_realize_cb         (GtkWidget              *widget,
 128                                                            EmpathyChat            *chat);
 129 static void             chat_text_populate_popup_cb       (GtkTextView            *view,
 130                                                            GtkMenu                *menu,
 131                                                            EmpathyChat            *chat);
 132 static void             chat_text_check_word_spelling_cb  (GtkMenuItem            *menuitem,
 133                                                            EmpathyChatSpell       *chat_spell);
 134 static EmpathyChatSpell *chat_spell_new                   (EmpathyChat            *chat,
 135                                                            const gchar            *word,
 136                                                            GtkTextIter             start,
 137                                                            GtkTextIter             end);
 138 static void             chat_spell_free                   (EmpathyChatSpell       *chat_spell);
 139 static void             chat_composing_start              (EmpathyChat            *chat);
 140 static void             chat_composing_stop               (EmpathyChat            *chat);
 141 static void             chat_composing_remove_timeout     (EmpathyChat            *chat);
 142 static gboolean         chat_composing_stop_timeout_cb    (EmpathyChat            *chat);
 143 static void             chat_state_changed_cb             (EmpathyTpChat          *tp_chat,
 144                                                            EmpathyContact         *contact,
 145                                                            TpChannelChatState      state,
 146                                                            EmpathyChat            *chat);
 147 static void             chat_add_logs                     (EmpathyChat            *chat);
 148 static gboolean         chat_scroll_down_idle_func        (EmpathyChat            *chat);
 149
 150 enum {
 151         COMPOSING,
 152         NEW_MESSAGE,
 153         NAME_CHANGED,
 154         STATUS_CHANGED,
 155         LAST_SIGNAL
 156 };
 157
 158 static guint signals[LAST_SIGNAL] = { 0 };
 159
 160 G_DEFINE_TYPE (EmpathyChat, empathy_chat, G_TYPE_OBJECT);
 161
 162 static void
 163 empathy_chat_class_init (EmpathyChatClass *klass)
 164 {
 165         GObjectClass *object_class;
 166
 167         object_class = G_OBJECT_CLASS (klass);
 168
 169         object_class->finalize = chat_finalize;
 170
 171         signals[COMPOSING] =
 172                 g_signal_new ("composing",
 173                               G_OBJECT_CLASS_TYPE (object_class),
 174                               G_SIGNAL_RUN_LAST,
 175                               0,
 176                               NULL, NULL,
 177                               g_cclosure_marshal_VOID__BOOLEAN,
 178                               G_TYPE_NONE,
 179                               1, G_TYPE_BOOLEAN);
 180
 181         signals[NEW_MESSAGE] =
 182                 g_signal_new ("new-message",
 183                               G_OBJECT_CLASS_TYPE (object_class),
 184                               G_SIGNAL_RUN_LAST,
 185                               0,
 186                               NULL, NULL,
 187                               empathy_marshal_VOID__OBJECT_BOOLEAN,
 188                               G_TYPE_NONE,
 189                               2, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN);
 190
 191         signals[NAME_CHANGED] =
 192                 g_signal_new ("name-changed",
 193                               G_OBJECT_CLASS_TYPE (object_class),
 194                               G_SIGNAL_RUN_LAST,
 195                               0,
 196                               NULL, NULL,
 197                               g_cclosure_marshal_VOID__POINTER,
 198                               G_TYPE_NONE,
 199                               1, G_TYPE_POINTER);
 200
 201         signals[STATUS_CHANGED] =
 202                 g_signal_new ("status-changed",
 203                               G_OBJECT_CLASS_TYPE (object_class),
 204                               G_SIGNAL_RUN_LAST,
 205                               0,
 206                               NULL, NULL,
 207                               g_cclosure_marshal_VOID__VOID,
 208                               G_TYPE_NONE,
 209                               0);
 210
 211         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
 212 }
 213
 214 static void
 215 empathy_chat_init (EmpathyChat *chat)
 216 {
 217         EmpathyChatPriv *priv;
 218         GtkTextBuffer  *buffer;
 219
 220         chat->view = empathy_chat_view_new ();
 221         chat->input_text_view = gtk_text_view_new ();
 222
 223         chat->is_first_char = TRUE;
 224
 225         g_object_set (chat->input_text_view,
 226                       "pixels-above-lines", 2,
 227                       "pixels-below-lines", 2,
 228                       "pixels-inside-wrap", 1,
 229                       "right-margin", 2,
 230                       "left-margin", 2,
 231                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 232                       NULL);
 233
 234         priv = GET_PRIV (chat);
 235
 236         priv->log_manager = empathy_log_manager_new ();
 237         priv->default_window_height = -1;
 238         priv->vscroll_visible = FALSE;
 239         priv->sensitive = TRUE;
 240         priv->sent_messages = NULL;
 241         priv->sent_messages_index = -1;
 242         priv->first_tp_chat = TRUE;
 243
 244         g_signal_connect (chat->input_text_view,
 245                           "key_press_event",
 246                           G_CALLBACK (chat_input_key_press_event_cb),
 247                           chat);
 248
 249         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 250         g_signal_connect (buffer,
 251                           "changed",
 252                           G_CALLBACK (chat_input_text_buffer_changed_cb),
 253                           chat);
 254         g_signal_connect (chat->view,
 255                           "focus_in_event",
 256                           G_CALLBACK (chat_text_view_focus_in_event_cb),
 257                           chat);
 258
 259         g_signal_connect (chat->input_text_view,
 260                           "size_allocate",
 261                           G_CALLBACK (chat_text_view_size_allocate_cb),
 262                           chat);
 263
 264         g_signal_connect (chat->input_text_view,
 265                           "realize",
 266                           G_CALLBACK (chat_text_view_realize_cb),
 267                           chat);
 268
 269         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
 270                           "populate_popup",
 271                           G_CALLBACK (chat_text_populate_popup_cb),
 272                           chat);
 273
 274         /* create misspelt words identification tag */
 275         gtk_text_buffer_create_tag (buffer,
 276                                     "misspelled",
 277                                     "underline", PANGO_UNDERLINE_ERROR,
 278                                     NULL);
 279 }
 280
 281 static void
 282 chat_finalize (GObject *object)
 283 {
 284         EmpathyChat     *chat;
 285         EmpathyChatPriv *priv;
 286
 287         chat = EMPATHY_CHAT (object);
 288         priv = GET_PRIV (chat);
 289
 290         empathy_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 291
 292         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 293         g_slist_free (priv->sent_messages);
 294
 295         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
 296         g_list_free (priv->compositors);
 297
 298         chat_composing_remove_timeout (chat);
 299         g_object_unref (chat->account);
 300         g_object_unref (priv->log_manager);
 301
 302         if (priv->tp_chat) {
 303                 g_object_unref (priv->tp_chat);
 304         }
 305
 306         if (priv->scroll_idle_id) {
 307                 g_source_remove (priv->scroll_idle_id);
 308         }
 309
 310         g_free (priv->id);
 311
 312         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
 313 }
 314
 315 static void
 316 chat_destroy_cb (EmpathyTpChat *tp_chat,
 317                  EmpathyChat    *chat)
 318 {
 319         EmpathyChatPriv *priv;
 320
 321         priv = GET_PRIV (chat);
 322
 323         if (priv->tp_chat) {
 324                 g_object_unref (priv->tp_chat);
 325                 priv->tp_chat = NULL;
 326         }
 327         priv->sensitive = FALSE;
 328
 329         empathy_chat_view_append_event (chat->view, _("Disconnected"));
 330         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
 331
 332         if (EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat) {
 333                 EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat (chat, NULL);
 334         }
 335 }
 336
 337 static void
 338 chat_send (EmpathyChat  *chat,
 339            const gchar *msg)
 340 {
 341         EmpathyChatPriv *priv;
 342         EmpathyMessage  *message;
 343
 344         priv = GET_PRIV (chat);
 345
 346         if (G_STR_EMPTY (msg)) {
 347                 return;
 348         }
 349
 350         chat_sent_message_add (chat, msg);
 351
 352         if (g_str_has_prefix (msg, "/clear")) {
 353                 empathy_chat_view_clear (chat->view);
 354                 return;
 355         }
 356
 357         /* FIXME: add here something to let group/privrate chat handle
 358          *        some special messages */
 359
 360         message = empathy_message_new (msg);
 361
 362         empathy_tp_chat_send (priv->tp_chat, message);
 363
 364         g_object_unref (message);
 365 }
 366
 367 static void
 368 chat_input_text_view_send (EmpathyChat *chat)
 369 {
 370         EmpathyChatPriv *priv;
 371         GtkTextBuffer  *buffer;
 372         GtkTextIter     start, end;
 373         gchar          *msg;
 374
 375         priv = GET_PRIV (chat);
 376
 377         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 378
 379         gtk_text_buffer_get_bounds (buffer, &start, &end);
 380         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 381
 382         /* clear the input field */
 383         gtk_text_buffer_set_text (buffer, "", -1);
 384
 385         chat_send (chat, msg);
 386
 387         g_free (msg);
 388
 389         chat->is_first_char = TRUE;
 390 }
 391
 392 static void
 393 chat_message_received_cb (EmpathyTpChat  *tp_chat,
 394                           EmpathyMessage *message,
 395                           EmpathyChat    *chat)
 396 {
 397         EmpathyChatPriv *priv;
 398         EmpathyContact  *sender;
 399         time_t           timestamp;
 400
 401         priv = GET_PRIV (chat);
 402
 403         timestamp = empathy_message_get_timestamp (message);
 404         if (timestamp <= priv->last_log_timestamp) {
 405                 /* Do not take care of messages anterior of the last
 406                  * logged message. Some Jabber chatroom sends messages
 407                  * received before we joined the room, this avoid
 408                  * displaying those messages if we already logged them
 409                  * last time we joined that room. */
 410                 empathy_debug (DEBUG_DOMAIN, "Skipping message because it is "
 411                                "anterior of last logged message.");
 412                 return;
 413         }
 414
 415         sender = empathy_message_get_sender (message);
 416         empathy_debug (DEBUG_DOMAIN, "Appending message ('%s')",
 417                       empathy_contact_get_name (sender));
 418
 419         empathy_log_manager_add_message (priv->log_manager,
 420                                          empathy_chat_get_id (chat),
 421                                          empathy_chat_is_group_chat (chat),
 422                                          message);
 423
 424         empathy_chat_view_append_message (chat->view, message);
 425
 426         if (empathy_chat_should_play_sound (chat)) {
 427                 // FIXME: empathy_sound_play (EMPATHY_SOUND_CHAT);
 428         }
 429
 430         /* We received a message so the contact is no more composing */
 431         chat_state_changed_cb (tp_chat, sender,
 432                                TP_CHANNEL_CHAT_STATE_ACTIVE,
 433                                chat);
 434
 435         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 436 }
 437
 438 static void
 439 chat_send_error_cb (EmpathyTpChat          *tp_chat,
 440                     EmpathyMessage         *message,
 441                     TpChannelTextSendError  error_code,
 442                     EmpathyChat            *chat)
 443 {
 444         const gchar *error;
 445         gchar       *str;
 446
 447         switch (error_code) {
 448         case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
 449                 error = _("offline");
 450                 break;
 451         case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
 452                 error = _("invalid contact");
 453                 break;
 454         case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
 455                 error = _("permission denied");
 456                 break;
 457         case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
 458                 error = _("too long message");
 459                 break;
 460         case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
 461                 error = _("not implemented");
 462                 break;
 463         default:
 464                 error = _("unknown");
 465                 break;
 466         }
 467
 468         str = g_strdup_printf (_("Error sending message '%s': %s"),
 469                                empathy_message_get_body (message),
 470                                error);
 471         empathy_chat_view_append_event (chat->view, str);
 472         g_free (str);
 473 }
 474
 475 void
 476 chat_sent_message_add (EmpathyChat  *chat,
 477                        const gchar *str)
 478 {
 479         EmpathyChatPriv *priv;
 480         GSList         *list;
 481         GSList         *item;
 482
 483         priv = GET_PRIV (chat);
 484
 485         /* Save the sent message in our repeat buffer */
 486         list = priv->sent_messages;
 487
 488         /* Remove any other occurances of this msg */
 489         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 490                 list = g_slist_remove_link (list, item);
 491                 g_free (item->data);
 492                 g_slist_free1 (item);
 493         }
 494
 495         /* Trim the list to the last 10 items */
 496         while (g_slist_length (list) > 10) {
 497                 item = g_slist_last (list);
 498                 if (item) {
 499                         list = g_slist_remove_link (list, item);
 500                         g_free (item->data);
 501                         g_slist_free1 (item);
 502                 }
 503         }
 504
 505         /* Add new message */
 506         list = g_slist_prepend (list, g_strdup (str));
 507
 508         /* Set list and reset the index */
 509         priv->sent_messages = list;
 510         priv->sent_messages_index = -1;
 511 }
 512
 513 const gchar *
 514 chat_sent_message_get_next (EmpathyChat *chat)
 515 {
 516         EmpathyChatPriv *priv;
 517         gint            max;
 518
 519         priv = GET_PRIV (chat);
 520
 521         if (!priv->sent_messages) {
 522                 empathy_debug (DEBUG_DOMAIN,
 523                               "No sent messages, next message is NULL");
 524                 return NULL;
 525         }
 526
 527         max = g_slist_length (priv->sent_messages) - 1;
 528
 529         if (priv->sent_messages_index < max) {
 530                 priv->sent_messages_index++;
 531         }
 532
 533         empathy_debug (DEBUG_DOMAIN,
 534                       "Returning next message index:%d",
 535                       priv->sent_messages_index);
 536
 537         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 538 }
 539
 540 const gchar *
 541 chat_sent_message_get_last (EmpathyChat *chat)
 542 {
 543         EmpathyChatPriv *priv;
 544
 545         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 546
 547         priv = GET_PRIV (chat);
 548
 549         if (!priv->sent_messages) {
 550                 empathy_debug (DEBUG_DOMAIN,
 551                               "No sent messages, last message is NULL");
 552                 return NULL;
 553         }
 554
 555         if (priv->sent_messages_index >= 0) {
 556                 priv->sent_messages_index--;
 557         }
 558
 559         empathy_debug (DEBUG_DOMAIN,
 560                       "Returning last message index:%d",
 561                       priv->sent_messages_index);
 562
 563         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 564 }
 565
 566 static gboolean
 567 chat_input_key_press_event_cb (GtkWidget   *widget,
 568                                GdkEventKey *event,
 569                                EmpathyChat *chat)
 570 {
 571         EmpathyChatPriv *priv;
 572         GtkAdjustment  *adj;
 573         gdouble         val;
 574         GtkWidget      *text_view_sw;
 575
 576         priv = GET_PRIV (chat);
 577
 578         /* Catch ctrl+up/down so we can traverse messages we sent */
 579         if ((event->state & GDK_CONTROL_MASK) &&
 580             (event->keyval == GDK_Up ||
 581              event->keyval == GDK_Down)) {
 582                 GtkTextBuffer *buffer;
 583                 const gchar   *str;
 584
 585                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 586
 587                 if (event->keyval == GDK_Up) {
 588                         str = chat_sent_message_get_next (chat);
 589                 } else {
 590                         str = chat_sent_message_get_last (chat);
 591                 }
 592
 593                 g_signal_handlers_block_by_func (buffer,
 594                                                  chat_input_text_buffer_changed_cb,
 595                                                  chat);
 596                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 597                 g_signal_handlers_unblock_by_func (buffer,
 598                                                    chat_input_text_buffer_changed_cb,
 599                                                    chat);
 600
 601                 return TRUE;
 602         }
 603
 604         /* Catch enter but not ctrl/shift-enter */
 605         if (IS_ENTER (event->keyval) &&
 606             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 607                 GtkTextView *view;
 608
 609                 /* This is to make sure that kinput2 gets the enter. And if
 610                  * it's handled there we shouldn't send on it. This is because
 611                  * kinput2 uses Enter to commit letters. See:
 612                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 613                  */
 614
 615                 view = GTK_TEXT_VIEW (chat->input_text_view);
 616                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 617                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 618                         return TRUE;
 619                 }
 620
 621                 chat_input_text_view_send (chat);
 622                 return TRUE;
 623         }
 624
 625         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 626
 627         if (IS_ENTER (event->keyval) &&
 628             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 629                 /* Newline for shift/control-enter. */
 630                 return FALSE;
 631         }
 632         else if (!(event->state & GDK_CONTROL_MASK) &&
 633                  event->keyval == GDK_Page_Up) {
 634                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 635                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 636
 637                 return TRUE;
 638         }
 639         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 640                  event->keyval == GDK_Page_Down) {
 641                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 642                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 643                 gtk_adjustment_set_value (adj, val);
 644
 645                 return TRUE;
 646         }
 647
 648         if (EMPATHY_CHAT_GET_CLASS (chat)->key_press_event) {
 649                 return EMPATHY_CHAT_GET_CLASS (chat)->key_press_event (chat, event);
 650         }
 651
 652         return FALSE;
 653 }
 654
 655 static gboolean
 656 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 657                                   GdkEvent   *event,
 658                                   EmpathyChat *chat)
 659 {
 660         gtk_widget_grab_focus (chat->input_text_view);
 661
 662         return TRUE;
 663 }
 664
 665 static void
 666 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 667                                    EmpathyChat    *chat)
 668 {
 669         EmpathyChatPriv *priv;
 670         GtkTextIter     start, end;
 671         gchar          *str;
 672         gboolean        spell_checker = FALSE;
 673
 674         priv = GET_PRIV (chat);
 675
 676         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 677                 chat_composing_stop (chat);
 678         } else {
 679                 chat_composing_start (chat);
 680         }
 681
 682         empathy_conf_get_bool (empathy_conf_get (),
 683                               EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 684                               &spell_checker);
 685
 686         if (chat->is_first_char) {
 687                 GtkRequisition  req;
 688                 gint            window_height;
 689                 GtkWidget      *dialog;
 690                 GtkAllocation  *allocation;
 691
 692                 /* Save the window's size */
 693                 dialog = empathy_chat_window_get_dialog (priv->window);
 694                 gtk_window_get_size (GTK_WINDOW (dialog),
 695                                      NULL, &window_height);
 696
 697                 gtk_widget_size_request (chat->input_text_view, &req);
 698
 699                 allocation = &GTK_WIDGET (chat->view)->allocation;
 700
 701                 priv->default_window_height = window_height;
 702                 priv->last_input_height = req.height;
 703                 priv->padding_height = window_height - req.height - allocation->height;
 704
 705                 chat->is_first_char = FALSE;
 706         }
 707
 708         gtk_text_buffer_get_start_iter (buffer, &start);
 709
 710         if (!spell_checker) {
 711                 gtk_text_buffer_get_end_iter (buffer, &end);
 712                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 713                 return;
 714         }
 715
 716         if (!empathy_spell_supported ()) {
 717                 return;
 718         }
 719
 720         /* NOTE: this is really inefficient, we shouldn't have to
 721            reiterate the whole buffer each time and check each work
 722            every time. */
 723         while (TRUE) {
 724                 gboolean correct = FALSE;
 725
 726                 /* if at start */
 727                 if (gtk_text_iter_is_start (&start)) {
 728                         end = start;
 729
 730                         if (!gtk_text_iter_forward_word_end (&end)) {
 731                                 /* no whole word yet */
 732                                 break;
 733                         }
 734                 } else {
 735                         if (!gtk_text_iter_forward_word_end (&end)) {
 736                                 /* must be the end of the buffer */
 737                                 break;
 738                         }
 739
 740                         start = end;
 741                         gtk_text_iter_backward_word_start (&start);
 742                 }
 743
 744                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 745
 746                 /* spell check string */
 747                 if (!empathy_chat_get_is_command (str)) {
 748                         correct = empathy_spell_check (str);
 749                 } else {
 750                         correct = TRUE;
 751                 }
 752
 753                 if (!correct) {
 754                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 755                 } else {
 756                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 757                 }
 758
 759                 g_free (str);
 760
 761                 /* set start iter to the end iters position */
 762                 start = end;
 763         }
 764 }
 765
 766 typedef struct {
 767         GtkWidget *window;
 768         gint       width;
 769         gint       height;
 770 } ChangeSizeData;
 771
 772 static gboolean
 773 chat_change_size_in_idle_cb (ChangeSizeData *data)
 774 {
 775         gtk_window_resize (GTK_WINDOW (data->window),
 776                            data->width, data->height);
 777
 778         return FALSE;
 779 }
 780
 781 static void
 782 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 783                                EmpathyChat *chat)
 784 {
 785         EmpathyChatPriv *priv;
 786         GtkWidget      *sw;
 787
 788         priv = GET_PRIV (chat);
 789
 790         priv->vscroll_visible = FALSE;
 791         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 792
 793         sw = gtk_widget_get_parent (chat->input_text_view);
 794         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 795                                         GTK_POLICY_NEVER,
 796                                         GTK_POLICY_NEVER);
 797         g_object_set (sw, "height-request", -1, NULL);
 798 }
 799
 800 static void
 801 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 802                                  GtkAllocation *allocation,
 803                                  EmpathyChat    *chat)
 804 {
 805         EmpathyChatPriv *priv;
 806         gint            width;
 807         GtkWidget      *dialog;
 808         ChangeSizeData *data;
 809         gint            window_height;
 810         gint            new_height;
 811         GtkAllocation  *view_allocation;
 812         gint            current_height;
 813         gint            diff;
 814         GtkWidget      *sw;
 815
 816         priv = GET_PRIV (chat);
 817
 818         if (priv->default_window_height <= 0) {
 819                 return;
 820         }
 821
 822         sw = gtk_widget_get_parent (widget);
 823         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 824                 GtkWidget *vscroll;
 825
 826                 priv->vscroll_visible = TRUE;
 827                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 828                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 829                                                 GTK_POLICY_NEVER,
 830                                                 GTK_POLICY_AUTOMATIC);
 831                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 832                 g_signal_connect (vscroll, "hide",
 833                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 834                                   chat);
 835         }
 836
 837         if (priv->last_input_height <= allocation->height) {
 838                 priv->last_input_height = allocation->height;
 839                 return;
 840         }
 841
 842         diff = priv->last_input_height - allocation->height;
 843         priv->last_input_height = allocation->height;
 844
 845         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 846
 847         dialog = empathy_chat_window_get_dialog (priv->window);
 848         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 849
 850         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 851
 852         if (new_height <= priv->default_window_height) {
 853                 window_height = priv->default_window_height;
 854         } else {
 855                 window_height = new_height;
 856         }
 857
 858         if (current_height <= window_height) {
 859                 return;
 860         }
 861
 862         /* Restore the window's size */
 863         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 864
 865         data = g_new0 (ChangeSizeData, 1);
 866         data->window = dialog;
 867         data->width  = width;
 868         data->height = window_height;
 869
 870         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 871                          (GSourceFunc) chat_change_size_in_idle_cb,
 872                          data, g_free);
 873 }
 874
 875 static void
 876 chat_text_view_realize_cb (GtkWidget  *widget,
 877                            EmpathyChat *chat)
 878 {
 879         empathy_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 880         gtk_widget_grab_focus (widget);
 881 }
 882
 883 static void
 884 chat_insert_smiley_activate_cb (GtkWidget   *menuitem,
 885                                 EmpathyChat *chat)
 886 {
 887         GtkTextBuffer *buffer;
 888         GtkTextIter    iter;
 889         const gchar   *smiley;
 890
 891         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 892
 893         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 894
 895         gtk_text_buffer_get_end_iter (buffer, &iter);
 896         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 897
 898         gtk_text_buffer_get_end_iter (buffer, &iter);
 899         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 900 }
 901
 902 static void
 903 chat_text_populate_popup_cb (GtkTextView *view,
 904                              GtkMenu     *menu,
 905                              EmpathyChat  *chat)
 906 {
 907         EmpathyChatPriv  *priv;
 908         GtkTextBuffer   *buffer;
 909         GtkTextTagTable *table;
 910         GtkTextTag      *tag;
 911         gint             x, y;
 912         GtkTextIter      iter, start, end;
 913         GtkWidget       *item;
 914         gchar           *str = NULL;
 915         EmpathyChatSpell *chat_spell;
 916         GtkWidget       *smiley_menu;
 917
 918         priv = GET_PRIV (chat);
 919
 920         /* Add the emoticon menu. */
 921         item = gtk_separator_menu_item_new ();
 922         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 923         gtk_widget_show (item);
 924
 925         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 926         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 927         gtk_widget_show (item);
 928
 929         smiley_menu = empathy_chat_view_get_smiley_menu (
 930                 G_CALLBACK (chat_insert_smiley_activate_cb),
 931                 chat);
 932         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 933
 934         /* Add the spell check menu item. */
 935         buffer = gtk_text_view_get_buffer (view);
 936         table = gtk_text_buffer_get_tag_table (buffer);
 937
 938         tag = gtk_text_tag_table_lookup (table, "misspelled");
 939
 940         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 941
 942         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 943                                                GTK_TEXT_WINDOW_WIDGET,
 944                                                x, y,
 945                                                &x, &y);
 946
 947         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 948
 949         start = end = iter;
 950
 951         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 952             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 953
 954                 str = gtk_text_buffer_get_text (buffer,
 955                                                 &start, &end, FALSE);
 956         }
 957
 958         if (G_STR_EMPTY (str)) {
 959                 return;
 960         }
 961
 962         chat_spell = chat_spell_new (chat, str, start, end);
 963
 964         g_object_set_data_full (G_OBJECT (menu),
 965                                 "chat_spell", chat_spell,
 966                                 (GDestroyNotify) chat_spell_free);
 967
 968         item = gtk_separator_menu_item_new ();
 969         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 970         gtk_widget_show (item);
 971
 972         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 973         g_signal_connect (item,
 974                           "activate",
 975                           G_CALLBACK (chat_text_check_word_spelling_cb),
 976                           chat_spell);
 977         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 978         gtk_widget_show (item);
 979 }
 980
 981 static void
 982 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 983                                   EmpathyChatSpell *chat_spell)
 984 {
 985         empathy_spell_dialog_show (chat_spell->chat,
 986                                   chat_spell->start,
 987                                   chat_spell->end,
 988                                   chat_spell->word);
 989 }
 990
 991 static EmpathyChatSpell *
 992 chat_spell_new (EmpathyChat  *chat,
 993                 const gchar *word,
 994                 GtkTextIter  start,
 995                 GtkTextIter  end)
 996 {
 997         EmpathyChatSpell *chat_spell;
 998
 999         chat_spell = g_new0 (EmpathyChatSpell, 1);
1000
1001         chat_spell->chat = g_object_ref (chat);
1002         chat_spell->word = g_strdup (word);
1003         chat_spell->start = start;
1004         chat_spell->end = end;
1005
1006         return chat_spell;
1007 }
1008
1009 static void
1010 chat_spell_free (EmpathyChatSpell *chat_spell)
1011 {
1012         g_object_unref (chat_spell->chat);
1013         g_free (chat_spell->word);
1014         g_free (chat_spell);
1015 }
1016
1017 static void
1018 chat_composing_start (EmpathyChat *chat)
1019 {
1020         EmpathyChatPriv *priv;
1021
1022         priv = GET_PRIV (chat);
1023
1024         if (priv->composing_stop_timeout_id) {
1025                 /* Just restart the timeout */
1026                 chat_composing_remove_timeout (chat);
1027         } else {
1028                 empathy_tp_chat_set_state (priv->tp_chat,
1029                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
1030         }
1031
1032         priv->composing_stop_timeout_id = g_timeout_add_seconds (
1033                 COMPOSING_STOP_TIMEOUT,
1034                 (GSourceFunc) chat_composing_stop_timeout_cb,
1035                 chat);
1036 }
1037
1038 static void
1039 chat_composing_stop (EmpathyChat *chat)
1040 {
1041         EmpathyChatPriv *priv;
1042
1043         priv = GET_PRIV (chat);
1044
1045         chat_composing_remove_timeout (chat);
1046         empathy_tp_chat_set_state (priv->tp_chat,
1047                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1048 }
1049
1050 static void
1051 chat_composing_remove_timeout (EmpathyChat *chat)
1052 {
1053         EmpathyChatPriv *priv;
1054
1055         priv = GET_PRIV (chat);
1056
1057         if (priv->composing_stop_timeout_id) {
1058                 g_source_remove (priv->composing_stop_timeout_id);
1059                 priv->composing_stop_timeout_id = 0;
1060         }
1061 }
1062
1063 static gboolean
1064 chat_composing_stop_timeout_cb (EmpathyChat *chat)
1065 {
1066         EmpathyChatPriv *priv;
1067
1068         priv = GET_PRIV (chat);
1069
1070         priv->composing_stop_timeout_id = 0;
1071         empathy_tp_chat_set_state (priv->tp_chat,
1072                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1073
1074         return FALSE;
1075 }
1076
1077 static void
1078 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
1079                        EmpathyContact     *contact,
1080                        TpChannelChatState  state,
1081                        EmpathyChat        *chat)
1082 {
1083         EmpathyChatPriv *priv;
1084         GList          *l;
1085         gboolean        was_composing;
1086
1087         priv = GET_PRIV (chat);
1088
1089         if (empathy_contact_is_user (contact)) {
1090                 /* We don't care about our own chat state */
1091                 return;
1092         }
1093
1094         was_composing = (priv->compositors != NULL);
1095
1096         /* Find the contact in the list. After that l is the list elem or NULL */
1097         for (l = priv->compositors; l; l = l->next) {
1098                 if (empathy_contact_equal (contact, l->data)) {
1099                         break;
1100                 }
1101         }
1102
1103         switch (state) {
1104         case TP_CHANNEL_CHAT_STATE_GONE:
1105         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1106         case TP_CHANNEL_CHAT_STATE_PAUSED:
1107         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1108                 /* Contact is not composing */
1109                 if (l) {
1110                         priv->compositors = g_list_remove_link (priv->compositors, l);
1111                         g_object_unref (l->data);
1112                         g_list_free1 (l);
1113                 }
1114                 break;
1115         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1116                 /* Contact is composing */
1117                 if (!l) {
1118                         priv->compositors = g_list_prepend (priv->compositors,
1119                                                             g_object_ref (contact));
1120                 }
1121                 break;
1122         default:
1123                 g_assert_not_reached ();
1124         }
1125
1126         empathy_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1127                       was_composing ? "yes" : "no",
1128                       priv->compositors ? "yes" : "no");
1129
1130         if ((was_composing && !priv->compositors) ||
1131             (!was_composing && priv->compositors)) {
1132                 /* Composing state changed */
1133                 g_signal_emit (chat, signals[COMPOSING], 0,
1134                                priv->compositors != NULL);
1135         }
1136 }
1137
1138 static void
1139 chat_add_logs (EmpathyChat *chat)
1140 {
1141         EmpathyChatPriv *priv;
1142         GList          *messages, *l;
1143         guint           num_messages;
1144         guint           i;
1145
1146         priv = GET_PRIV (chat);
1147
1148         /* Turn off scrolling temporarily */
1149         empathy_chat_view_scroll (chat->view, FALSE);
1150
1151         /* Add messages from last conversation */
1152         messages = empathy_log_manager_get_last_messages (priv->log_manager,
1153                                                           chat->account,
1154                                                           empathy_chat_get_id (chat),
1155                                                           empathy_chat_is_group_chat (chat));
1156         num_messages  = g_list_length (messages);
1157
1158         for (l = messages, i = 0; l; l = l->next, i++) {
1159                 EmpathyMessage *message;
1160
1161                 message = l->data;
1162
1163                 /* Only add 10 last messages */
1164                 if (num_messages - i > 10) {
1165                         g_object_unref (message);
1166                         continue;
1167                 }
1168
1169                 priv->last_log_timestamp = empathy_message_get_timestamp (message);
1170                 empathy_chat_view_append_message (chat->view, message);
1171
1172                 g_object_unref (message);
1173         }
1174         g_list_free (messages);
1175
1176         /* Turn back on scrolling */
1177         empathy_chat_view_scroll (chat->view, TRUE);
1178
1179         /* Scroll to the most recent messages, we reference the chat
1180          * for the duration of the scroll func.
1181          */
1182         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
1183                                            g_object_ref (chat));
1184 }
1185
1186 /* Scroll down after the back-log has been received. */
1187 static gboolean
1188 chat_scroll_down_idle_func (EmpathyChat *chat)
1189 {
1190         EmpathyChatPriv *priv;
1191
1192         priv = GET_PRIV (chat);
1193
1194         empathy_chat_scroll_down (chat);
1195         g_object_unref (chat);
1196
1197         priv->scroll_idle_id = 0;
1198
1199         return FALSE;
1200 }
1201
1202 gboolean
1203 empathy_chat_get_is_command (const gchar *str)
1204 {
1205         g_return_val_if_fail (str != NULL, FALSE);
1206
1207         if (str[0] != '/') {
1208                 return FALSE;
1209         }
1210
1211         if (g_str_has_prefix (str, "/me")) {
1212                 return TRUE;
1213         }
1214         else if (g_str_has_prefix (str, "/nick")) {
1215                 return TRUE;
1216         }
1217         else if (g_str_has_prefix (str, "/topic")) {
1218                 return TRUE;
1219         }
1220
1221         return FALSE;
1222 }
1223
1224 void
1225 empathy_chat_correct_word (EmpathyChat  *chat,
1226                           GtkTextIter  start,
1227                           GtkTextIter  end,
1228                           const gchar *new_word)
1229 {
1230         GtkTextBuffer *buffer;
1231
1232         g_return_if_fail (chat != NULL);
1233         g_return_if_fail (new_word != NULL);
1234
1235         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1236
1237         gtk_text_buffer_delete (buffer, &start, &end);
1238         gtk_text_buffer_insert (buffer, &start,
1239                                 new_word,
1240                                 -1);
1241 }
1242
1243 const gchar *
1244 empathy_chat_get_name (EmpathyChat *chat)
1245 {
1246         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1247
1248         if (EMPATHY_CHAT_GET_CLASS (chat)->get_name) {
1249                 return EMPATHY_CHAT_GET_CLASS (chat)->get_name (chat);
1250         }
1251
1252         return NULL;
1253 }
1254
1255 gchar *
1256 empathy_chat_get_tooltip (EmpathyChat *chat)
1257 {
1258         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1259
1260         if (EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip) {
1261                 return EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1262         }
1263
1264         return NULL;
1265 }
1266
1267 const gchar *
1268 empathy_chat_get_status_icon_name (EmpathyChat *chat)
1269 {
1270         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1271
1272         if (EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1273                 return EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1274         }
1275
1276         return NULL;
1277 }
1278
1279 GtkWidget *
1280 empathy_chat_get_widget (EmpathyChat *chat)
1281 {
1282         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1283
1284         if (EMPATHY_CHAT_GET_CLASS (chat)->get_widget) {
1285                 return EMPATHY_CHAT_GET_CLASS (chat)->get_widget (chat);
1286         }
1287
1288         return NULL;
1289 }
1290
1291 gboolean
1292 empathy_chat_is_group_chat (EmpathyChat *chat)
1293 {
1294         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1295
1296         if (EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat) {
1297                 return EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1298         }
1299
1300         return FALSE;
1301 }
1302
1303 gboolean
1304 empathy_chat_is_connected (EmpathyChat *chat)
1305 {
1306         EmpathyChatPriv *priv;
1307
1308         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1309
1310         priv = GET_PRIV (chat);
1311
1312         return (priv->tp_chat != NULL);
1313 }
1314
1315 void
1316 empathy_chat_save_geometry (EmpathyChat *chat,
1317                            gint        x,
1318                            gint        y,
1319                            gint        w,
1320                            gint        h)
1321 {
1322         empathy_geometry_save (empathy_chat_get_id (chat), x, y, w, h);
1323 }
1324
1325 void
1326 empathy_chat_load_geometry (EmpathyChat *chat,
1327                            gint       *x,
1328                            gint       *y,
1329                            gint       *w,
1330                            gint       *h)
1331 {
1332         empathy_geometry_load (empathy_chat_get_id (chat), x, y, w, h);
1333 }
1334
1335 void
1336 empathy_chat_set_tp_chat (EmpathyChat   *chat,
1337                           EmpathyTpChat *tp_chat)
1338 {
1339         EmpathyChatPriv *priv;
1340         GList           *messages, *l;
1341
1342         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1343         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1344
1345         priv = GET_PRIV (chat);
1346
1347         if (tp_chat == priv->tp_chat) {
1348                 return;
1349         }
1350
1351         if (priv->tp_chat) {
1352                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1353                                                       chat_message_received_cb,
1354                                                       chat);
1355                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1356                                                       chat_send_error_cb,
1357                                                       chat);
1358                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1359                                                       chat_destroy_cb,
1360                                                       chat);
1361                 g_object_unref (priv->tp_chat);
1362         }
1363
1364         g_free (priv->id);
1365         priv->tp_chat = g_object_ref (tp_chat);
1366         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1367
1368         if (priv->first_tp_chat) {
1369                 chat_add_logs (chat);
1370                 priv->first_tp_chat = FALSE;
1371         }
1372
1373         g_signal_connect (tp_chat, "message-received",
1374                           G_CALLBACK (chat_message_received_cb),
1375                           chat);
1376         g_signal_connect (tp_chat, "send-error",
1377                           G_CALLBACK (chat_send_error_cb),
1378                           chat);
1379         g_signal_connect (tp_chat, "chat-state-changed",
1380                           G_CALLBACK (chat_state_changed_cb),
1381                           chat);
1382         g_signal_connect (tp_chat, "destroy",
1383                           G_CALLBACK (chat_destroy_cb),
1384                           chat);
1385
1386         /* Get pending messages */
1387         empathy_tp_chat_set_acknowledge (tp_chat, TRUE);
1388         messages = empathy_tp_chat_get_pendings (tp_chat);
1389         for (l = messages; l; l = l->next) {
1390                 chat_message_received_cb (tp_chat, l->data, chat);
1391                 g_object_unref (l->data);
1392         }
1393         g_list_free (messages);
1394
1395         if (!priv->sensitive) {
1396                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
1397                 empathy_chat_view_append_event (chat->view, _("Connected"));
1398                 priv->sensitive = TRUE;
1399         }
1400
1401         if (EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat) {
1402                 EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat (chat, tp_chat);
1403         }
1404 }
1405
1406 const gchar *
1407 empathy_chat_get_id (EmpathyChat *chat)
1408 {
1409         EmpathyChatPriv *priv;
1410
1411         priv = GET_PRIV (chat);
1412
1413         return priv->id;
1414 }
1415
1416 void
1417 empathy_chat_clear (EmpathyChat *chat)
1418 {
1419         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1420
1421         empathy_chat_view_clear (chat->view);
1422 }
1423
1424 void
1425 empathy_chat_set_window (EmpathyChat       *chat,
1426                         EmpathyChatWindow *window)
1427 {
1428         EmpathyChatPriv *priv;
1429
1430         priv = GET_PRIV (chat);
1431         priv->window = window;
1432 }
1433
1434 EmpathyChatWindow *
1435 empathy_chat_get_window (EmpathyChat *chat)
1436 {
1437         EmpathyChatPriv *priv;
1438
1439         priv = GET_PRIV (chat);
1440
1441         return priv->window;
1442 }
1443
1444 void
1445 empathy_chat_scroll_down (EmpathyChat *chat)
1446 {
1447         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1448
1449         empathy_chat_view_scroll_down (chat->view);
1450 }
1451
1452 void
1453 empathy_chat_cut (EmpathyChat *chat)
1454 {
1455         GtkTextBuffer *buffer;
1456
1457         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1458
1459         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1460         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1461                 GtkClipboard *clipboard;
1462
1463                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1464
1465                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1466         }
1467 }
1468
1469 void
1470 empathy_chat_copy (EmpathyChat *chat)
1471 {
1472         GtkTextBuffer *buffer;
1473
1474         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1475
1476         if (empathy_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1477                 empathy_chat_view_copy_clipboard (chat->view);
1478                 return;
1479         }
1480
1481         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1482         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1483                 GtkClipboard *clipboard;
1484
1485                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1486
1487                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1488         }
1489 }
1490
1491 void
1492 empathy_chat_paste (EmpathyChat *chat)
1493 {
1494         GtkTextBuffer *buffer;
1495         GtkClipboard  *clipboard;
1496
1497         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1498
1499         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1500         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1501
1502         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1503 }
1504
1505 void
1506 empathy_chat_present (EmpathyChat *chat)
1507 {
1508         EmpathyChatPriv *priv;
1509
1510         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1511
1512         priv = GET_PRIV (chat);
1513
1514         if (priv->window == NULL) {
1515                 EmpathyChatWindow *window;
1516
1517                 window = empathy_chat_window_get_default ();
1518                 if (!window) {
1519                         window = empathy_chat_window_new ();
1520                 }
1521
1522                 empathy_chat_window_add_chat (window, chat);
1523         }
1524
1525         empathy_chat_window_switch_to_chat (priv->window, chat);
1526         empathy_window_present (
1527                 GTK_WINDOW (empathy_chat_window_get_dialog (priv->window)),
1528                 TRUE);
1529
1530         gtk_widget_grab_focus (chat->input_text_view);
1531 }
1532
1533 gboolean
1534 empathy_chat_should_play_sound (EmpathyChat *chat)
1535 {
1536         EmpathyChatWindow *window;
1537         gboolean          play = TRUE;
1538
1539         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1540
1541         window = empathy_chat_get_window (chat);
1542         if (!window) {
1543                 return TRUE;
1544         }
1545
1546         play = !empathy_chat_window_has_focus (window);
1547
1548         return play;
1549 }
1550
1551 gboolean
1552 empathy_chat_should_highlight_nick (EmpathyMessage *message)
1553 {
1554         EmpathyContact *contact;
1555         const gchar   *msg, *to;
1556         gchar         *cf_msg, *cf_to;
1557         gchar         *ch;
1558         gboolean       ret_val;
1559
1560         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1561
1562         empathy_debug (DEBUG_DOMAIN, "Highlighting nickname");
1563
1564         ret_val = FALSE;
1565
1566         msg = empathy_message_get_body (message);
1567         if (!msg) {
1568                 return FALSE;
1569         }
1570
1571         contact = empathy_message_get_receiver (message);
1572         if (!contact || !empathy_contact_is_user (contact)) {
1573                 return FALSE;
1574         }
1575
1576         to = empathy_contact_get_name (contact);
1577         if (!to) {
1578                 return FALSE;
1579         }
1580
1581         cf_msg = g_utf8_casefold (msg, -1);
1582         cf_to = g_utf8_casefold (to, -1);
1583
1584         ch = strstr (cf_msg, cf_to);
1585         if (ch == NULL) {
1586                 goto finished;
1587         }
1588
1589         if (ch != cf_msg) {
1590                 /* Not first in the message */
1591                 if ((*(ch - 1) != ' ') &&
1592                     (*(ch - 1) != ',') &&
1593                     (*(ch - 1) != '.')) {
1594                         goto finished;
1595                 }
1596         }
1597
1598         ch = ch + strlen (cf_to);
1599         if (ch >= cf_msg + strlen (cf_msg)) {
1600                 ret_val = TRUE;
1601                 goto finished;
1602         }
1603
1604         if ((*ch == ' ') ||
1605             (*ch == ',') ||
1606             (*ch == '.') ||
1607             (*ch == ':')) {
1608                 ret_val = TRUE;
1609                 goto finished;
1610         }
1611
1612 finished:
1613         g_free (cf_msg);
1614         g_free (cf_to);
1615
1616         return ret_val;
1617 }
1618