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                                                            TelepathyChannelTextSendError  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                                                            TelepathyChannelChatState      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                     TelepathyChannelTextSendError  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         if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK)) {
 579                 return TRUE;
 580         }
 581
 582         /* Catch ctrl+up/down so we can traverse messages we sent */
 583         if ((event->state & GDK_CONTROL_MASK) &&
 584             (event->keyval == GDK_Up ||
 585              event->keyval == GDK_Down)) {
 586                 GtkTextBuffer *buffer;
 587                 const gchar   *str;
 588
 589                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 590
 591                 if (event->keyval == GDK_Up) {
 592                         str = chat_sent_message_get_next (chat);
 593                 } else {
 594                         str = chat_sent_message_get_last (chat);
 595                 }
 596
 597                 g_signal_handlers_block_by_func (buffer,
 598                                                  chat_input_text_buffer_changed_cb,
 599                                                  chat);
 600                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 601                 g_signal_handlers_unblock_by_func (buffer,
 602                                                    chat_input_text_buffer_changed_cb,
 603                                                    chat);
 604
 605                 return TRUE;
 606         }
 607
 608         /* Catch enter but not ctrl/shift-enter */
 609         if (IS_ENTER (event->keyval) && !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 610                 GtkTextView *view;
 611
 612                 /* This is to make sure that kinput2 gets the enter. And if
 613                  * it's handled there we shouldn't send on it. This is because
 614                  * kinput2 uses Enter to commit letters. See:
 615                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 616                  */
 617
 618                 view = GTK_TEXT_VIEW (chat->input_text_view);
 619                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 620                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 621                         return TRUE;
 622                 }
 623
 624                 chat_input_text_view_send (chat);
 625                 return TRUE;
 626         }
 627
 628         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 629
 630         if (IS_ENTER (event->keyval) && (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 631                 /* Newline for shift-enter. */
 632                 return FALSE;
 633         }
 634         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 635                  event->keyval == GDK_Page_Up) {
 636                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 637                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 638
 639                 return TRUE;
 640         }
 641         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 642                  event->keyval == GDK_Page_Down) {
 643                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 644                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 645                 gtk_adjustment_set_value (adj, val);
 646
 647                 return TRUE;
 648         }
 649
 650         return FALSE;
 651 }
 652
 653 static gboolean
 654 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 655                                   GdkEvent   *event,
 656                                   EmpathyChat *chat)
 657 {
 658         gtk_widget_grab_focus (chat->input_text_view);
 659
 660         return TRUE;
 661 }
 662
 663 static void
 664 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 665                                    EmpathyChat    *chat)
 666 {
 667         EmpathyChatPriv *priv;
 668         GtkTextIter     start, end;
 669         gchar          *str;
 670         gboolean        spell_checker = FALSE;
 671
 672         priv = GET_PRIV (chat);
 673
 674         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 675                 chat_composing_stop (chat);
 676         } else {
 677                 chat_composing_start (chat);
 678         }
 679
 680         empathy_conf_get_bool (empathy_conf_get (),
 681                               EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 682                               &spell_checker);
 683
 684         if (chat->is_first_char) {
 685                 GtkRequisition  req;
 686                 gint            window_height;
 687                 GtkWidget      *dialog;
 688                 GtkAllocation  *allocation;
 689
 690                 /* Save the window's size */
 691                 dialog = empathy_chat_window_get_dialog (priv->window);
 692                 gtk_window_get_size (GTK_WINDOW (dialog),
 693                                      NULL, &window_height);
 694
 695                 gtk_widget_size_request (chat->input_text_view, &req);
 696
 697                 allocation = &GTK_WIDGET (chat->view)->allocation;
 698
 699                 priv->default_window_height = window_height;
 700                 priv->last_input_height = req.height;
 701                 priv->padding_height = window_height - req.height - allocation->height;
 702
 703                 chat->is_first_char = FALSE;
 704         }
 705
 706         gtk_text_buffer_get_start_iter (buffer, &start);
 707
 708         if (!spell_checker) {
 709                 gtk_text_buffer_get_end_iter (buffer, &end);
 710                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 711                 return;
 712         }
 713
 714         if (!empathy_spell_supported ()) {
 715                 return;
 716         }
 717
 718         /* NOTE: this is really inefficient, we shouldn't have to
 719            reiterate the whole buffer each time and check each work
 720            every time. */
 721         while (TRUE) {
 722                 gboolean correct = FALSE;
 723
 724                 /* if at start */
 725                 if (gtk_text_iter_is_start (&start)) {
 726                         end = start;
 727
 728                         if (!gtk_text_iter_forward_word_end (&end)) {
 729                                 /* no whole word yet */
 730                                 break;
 731                         }
 732                 } else {
 733                         if (!gtk_text_iter_forward_word_end (&end)) {
 734                                 /* must be the end of the buffer */
 735                                 break;
 736                         }
 737
 738                         start = end;
 739                         gtk_text_iter_backward_word_start (&start);
 740                 }
 741
 742                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 743
 744                 /* spell check string */
 745                 if (!empathy_chat_get_is_command (str)) {
 746                         correct = empathy_spell_check (str);
 747                 } else {
 748                         correct = TRUE;
 749                 }
 750
 751                 if (!correct) {
 752                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 753                 } else {
 754                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 755                 }
 756
 757                 g_free (str);
 758
 759                 /* set start iter to the end iters position */
 760                 start = end;
 761         }
 762 }
 763
 764 typedef struct {
 765         GtkWidget *window;
 766         gint       width;
 767         gint       height;
 768 } ChangeSizeData;
 769
 770 static gboolean
 771 chat_change_size_in_idle_cb (ChangeSizeData *data)
 772 {
 773         gtk_window_resize (GTK_WINDOW (data->window),
 774                            data->width, data->height);
 775
 776         return FALSE;
 777 }
 778
 779 static void
 780 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 781                                EmpathyChat *chat)
 782 {
 783         EmpathyChatPriv *priv;
 784         GtkWidget      *sw;
 785
 786         priv = GET_PRIV (chat);
 787
 788         priv->vscroll_visible = FALSE;
 789         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 790
 791         sw = gtk_widget_get_parent (chat->input_text_view);
 792         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 793                                         GTK_POLICY_NEVER,
 794                                         GTK_POLICY_NEVER);
 795         g_object_set (sw, "height-request", -1, NULL);
 796 }
 797
 798 static void
 799 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 800                                  GtkAllocation *allocation,
 801                                  EmpathyChat    *chat)
 802 {
 803         EmpathyChatPriv *priv;
 804         gint            width;
 805         GtkWidget      *dialog;
 806         ChangeSizeData *data;
 807         gint            window_height;
 808         gint            new_height;
 809         GtkAllocation  *view_allocation;
 810         gint            current_height;
 811         gint            diff;
 812         GtkWidget      *sw;
 813
 814         priv = GET_PRIV (chat);
 815
 816         if (priv->default_window_height <= 0) {
 817                 return;
 818         }
 819
 820         sw = gtk_widget_get_parent (widget);
 821         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 822                 GtkWidget *vscroll;
 823
 824                 priv->vscroll_visible = TRUE;
 825                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 826                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 827                                                 GTK_POLICY_NEVER,
 828                                                 GTK_POLICY_AUTOMATIC);
 829                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 830                 g_signal_connect (vscroll, "hide",
 831                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 832                                   chat);
 833         }
 834
 835         if (priv->last_input_height <= allocation->height) {
 836                 priv->last_input_height = allocation->height;
 837                 return;
 838         }
 839
 840         diff = priv->last_input_height - allocation->height;
 841         priv->last_input_height = allocation->height;
 842
 843         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 844
 845         dialog = empathy_chat_window_get_dialog (priv->window);
 846         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &current_height);
 847
 848         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 849
 850         if (new_height <= priv->default_window_height) {
 851                 window_height = priv->default_window_height;
 852         } else {
 853                 window_height = new_height;
 854         }
 855
 856         if (current_height <= window_height) {
 857                 return;
 858         }
 859
 860         /* Restore the window's size */
 861         gtk_window_get_size (GTK_WINDOW (dialog), &width, NULL);
 862
 863         data = g_new0 (ChangeSizeData, 1);
 864         data->window = dialog;
 865         data->width  = width;
 866         data->height = window_height;
 867
 868         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
 869                          (GSourceFunc) chat_change_size_in_idle_cb,
 870                          data, g_free);
 871 }
 872
 873 static void
 874 chat_text_view_realize_cb (GtkWidget  *widget,
 875                            EmpathyChat *chat)
 876 {
 877         empathy_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
 878         gtk_widget_grab_focus (widget);
 879 }
 880
 881 static void
 882 chat_insert_smiley_activate_cb (GtkWidget   *menuitem,
 883                                 EmpathyChat *chat)
 884 {
 885         GtkTextBuffer *buffer;
 886         GtkTextIter    iter;
 887         const gchar   *smiley;
 888
 889         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
 890
 891         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 892
 893         gtk_text_buffer_get_end_iter (buffer, &iter);
 894         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
 895
 896         gtk_text_buffer_get_end_iter (buffer, &iter);
 897         gtk_text_buffer_insert (buffer, &iter, " ", -1);
 898 }
 899
 900 static void
 901 chat_text_populate_popup_cb (GtkTextView *view,
 902                              GtkMenu     *menu,
 903                              EmpathyChat  *chat)
 904 {
 905         EmpathyChatPriv  *priv;
 906         GtkTextBuffer   *buffer;
 907         GtkTextTagTable *table;
 908         GtkTextTag      *tag;
 909         gint             x, y;
 910         GtkTextIter      iter, start, end;
 911         GtkWidget       *item;
 912         gchar           *str = NULL;
 913         EmpathyChatSpell *chat_spell;
 914         GtkWidget       *smiley_menu;
 915
 916         priv = GET_PRIV (chat);
 917
 918         /* Add the emoticon menu. */
 919         item = gtk_separator_menu_item_new ();
 920         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 921         gtk_widget_show (item);
 922
 923         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
 924         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 925         gtk_widget_show (item);
 926
 927         smiley_menu = empathy_chat_view_get_smiley_menu (
 928                 G_CALLBACK (chat_insert_smiley_activate_cb),
 929                 chat);
 930         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
 931
 932         /* Add the spell check menu item. */
 933         buffer = gtk_text_view_get_buffer (view);
 934         table = gtk_text_buffer_get_tag_table (buffer);
 935
 936         tag = gtk_text_tag_table_lookup (table, "misspelled");
 937
 938         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
 939
 940         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
 941                                                GTK_TEXT_WINDOW_WIDGET,
 942                                                x, y,
 943                                                &x, &y);
 944
 945         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
 946
 947         start = end = iter;
 948
 949         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
 950             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
 951
 952                 str = gtk_text_buffer_get_text (buffer,
 953                                                 &start, &end, FALSE);
 954         }
 955
 956         if (G_STR_EMPTY (str)) {
 957                 return;
 958         }
 959
 960         chat_spell = chat_spell_new (chat, str, start, end);
 961
 962         g_object_set_data_full (G_OBJECT (menu),
 963                                 "chat_spell", chat_spell,
 964                                 (GDestroyNotify) chat_spell_free);
 965
 966         item = gtk_separator_menu_item_new ();
 967         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 968         gtk_widget_show (item);
 969
 970         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
 971         g_signal_connect (item,
 972                           "activate",
 973                           G_CALLBACK (chat_text_check_word_spelling_cb),
 974                           chat_spell);
 975         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
 976         gtk_widget_show (item);
 977 }
 978
 979 static void
 980 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
 981                                   EmpathyChatSpell *chat_spell)
 982 {
 983         empathy_spell_dialog_show (chat_spell->chat,
 984                                   chat_spell->start,
 985                                   chat_spell->end,
 986                                   chat_spell->word);
 987 }
 988
 989 static EmpathyChatSpell *
 990 chat_spell_new (EmpathyChat  *chat,
 991                 const gchar *word,
 992                 GtkTextIter  start,
 993                 GtkTextIter  end)
 994 {
 995         EmpathyChatSpell *chat_spell;
 996
 997         chat_spell = g_new0 (EmpathyChatSpell, 1);
 998
 999         chat_spell->chat = g_object_ref (chat);
1000         chat_spell->word = g_strdup (word);
1001         chat_spell->start = start;
1002         chat_spell->end = end;
1003
1004         return chat_spell;
1005 }
1006
1007 static void
1008 chat_spell_free (EmpathyChatSpell *chat_spell)
1009 {
1010         g_object_unref (chat_spell->chat);
1011         g_free (chat_spell->word);
1012         g_free (chat_spell);
1013 }
1014
1015 static void
1016 chat_composing_start (EmpathyChat *chat)
1017 {
1018         EmpathyChatPriv *priv;
1019
1020         priv = GET_PRIV (chat);
1021
1022         if (priv->composing_stop_timeout_id) {
1023                 /* Just restart the timeout */
1024                 chat_composing_remove_timeout (chat);
1025         } else {
1026                 empathy_tp_chat_set_state (priv->tp_chat,
1027                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
1028         }
1029
1030         priv->composing_stop_timeout_id = g_timeout_add_seconds (
1031                 COMPOSING_STOP_TIMEOUT,
1032                 (GSourceFunc) chat_composing_stop_timeout_cb,
1033                 chat);
1034 }
1035
1036 static void
1037 chat_composing_stop (EmpathyChat *chat)
1038 {
1039         EmpathyChatPriv *priv;
1040
1041         priv = GET_PRIV (chat);
1042
1043         chat_composing_remove_timeout (chat);
1044         empathy_tp_chat_set_state (priv->tp_chat,
1045                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1046 }
1047
1048 static void
1049 chat_composing_remove_timeout (EmpathyChat *chat)
1050 {
1051         EmpathyChatPriv *priv;
1052
1053         priv = GET_PRIV (chat);
1054
1055         if (priv->composing_stop_timeout_id) {
1056                 g_source_remove (priv->composing_stop_timeout_id);
1057                 priv->composing_stop_timeout_id = 0;
1058         }
1059 }
1060
1061 static gboolean
1062 chat_composing_stop_timeout_cb (EmpathyChat *chat)
1063 {
1064         EmpathyChatPriv *priv;
1065
1066         priv = GET_PRIV (chat);
1067
1068         priv->composing_stop_timeout_id = 0;
1069         empathy_tp_chat_set_state (priv->tp_chat,
1070                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1071
1072         return FALSE;
1073 }
1074
1075 static void
1076 chat_state_changed_cb (EmpathyTpChat             *tp_chat,
1077                        EmpathyContact             *contact,
1078                        TelepathyChannelChatState  state,
1079                        EmpathyChat                *chat)
1080 {
1081         EmpathyChatPriv *priv;
1082         GList          *l;
1083         gboolean        was_composing;
1084
1085         priv = GET_PRIV (chat);
1086
1087         if (empathy_contact_is_user (contact)) {
1088                 /* We don't care about our own chat state */
1089                 return;
1090         }
1091
1092         was_composing = (priv->compositors != NULL);
1093
1094         /* Find the contact in the list. After that l is the list elem or NULL */
1095         for (l = priv->compositors; l; l = l->next) {
1096                 if (empathy_contact_equal (contact, l->data)) {
1097                         break;
1098                 }
1099         }
1100
1101         switch (state) {
1102         case TP_CHANNEL_CHAT_STATE_GONE:
1103         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1104         case TP_CHANNEL_CHAT_STATE_PAUSED:
1105         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1106                 /* Contact is not composing */
1107                 if (l) {
1108                         priv->compositors = g_list_remove_link (priv->compositors, l);
1109                         g_object_unref (l->data);
1110                         g_list_free1 (l);
1111                 }
1112                 break;
1113         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1114                 /* Contact is composing */
1115                 if (!l) {
1116                         priv->compositors = g_list_prepend (priv->compositors,
1117                                                             g_object_ref (contact));
1118                 }
1119                 break;
1120         default:
1121                 g_assert_not_reached ();
1122         }
1123
1124         empathy_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1125                       was_composing ? "yes" : "no",
1126                       priv->compositors ? "yes" : "no");
1127
1128         if ((was_composing && !priv->compositors) ||
1129             (!was_composing && priv->compositors)) {
1130                 /* Composing state changed */
1131                 g_signal_emit (chat, signals[COMPOSING], 0,
1132                                priv->compositors != NULL);
1133         }
1134 }
1135
1136 static void
1137 chat_add_logs (EmpathyChat *chat)
1138 {
1139         EmpathyChatPriv *priv;
1140         GList          *messages, *l;
1141         guint           num_messages;
1142         guint           i;
1143
1144         priv = GET_PRIV (chat);
1145
1146         /* Turn off scrolling temporarily */
1147         empathy_chat_view_scroll (chat->view, FALSE);
1148
1149         /* Add messages from last conversation */
1150         messages = empathy_log_manager_get_last_messages (priv->log_manager,
1151                                                           chat->account,
1152                                                           empathy_chat_get_id (chat),
1153                                                           empathy_chat_is_group_chat (chat));
1154         num_messages  = g_list_length (messages);
1155
1156         for (l = messages, i = 0; l; l = l->next, i++) {
1157                 EmpathyMessage *message;
1158
1159                 message = l->data;
1160
1161                 /* Only add 10 last messages */
1162                 if (num_messages - i > 10) {
1163                         g_object_unref (message);
1164                         continue;
1165                 }
1166
1167                 priv->last_log_timestamp = empathy_message_get_timestamp (message);
1168                 empathy_chat_view_append_message (chat->view, message);
1169
1170                 g_object_unref (message);
1171         }
1172         g_list_free (messages);
1173
1174         /* Turn back on scrolling */
1175         empathy_chat_view_scroll (chat->view, TRUE);
1176
1177         /* Scroll to the most recent messages, we reference the chat
1178          * for the duration of the scroll func.
1179          */
1180         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
1181                                            g_object_ref (chat));
1182 }
1183
1184 /* Scroll down after the back-log has been received. */
1185 static gboolean
1186 chat_scroll_down_idle_func (EmpathyChat *chat)
1187 {
1188         EmpathyChatPriv *priv;
1189
1190         priv = GET_PRIV (chat);
1191
1192         empathy_chat_scroll_down (chat);
1193         g_object_unref (chat);
1194
1195         priv->scroll_idle_id = 0;
1196
1197         return FALSE;
1198 }
1199
1200 gboolean
1201 empathy_chat_get_is_command (const gchar *str)
1202 {
1203         g_return_val_if_fail (str != NULL, FALSE);
1204
1205         if (str[0] != '/') {
1206                 return FALSE;
1207         }
1208
1209         if (g_str_has_prefix (str, "/me")) {
1210                 return TRUE;
1211         }
1212         else if (g_str_has_prefix (str, "/nick")) {
1213                 return TRUE;
1214         }
1215         else if (g_str_has_prefix (str, "/topic")) {
1216                 return TRUE;
1217         }
1218
1219         return FALSE;
1220 }
1221
1222 void
1223 empathy_chat_correct_word (EmpathyChat  *chat,
1224                           GtkTextIter  start,
1225                           GtkTextIter  end,
1226                           const gchar *new_word)
1227 {
1228         GtkTextBuffer *buffer;
1229
1230         g_return_if_fail (chat != NULL);
1231         g_return_if_fail (new_word != NULL);
1232
1233         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1234
1235         gtk_text_buffer_delete (buffer, &start, &end);
1236         gtk_text_buffer_insert (buffer, &start,
1237                                 new_word,
1238                                 -1);
1239 }
1240
1241 const gchar *
1242 empathy_chat_get_name (EmpathyChat *chat)
1243 {
1244         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1245
1246         if (EMPATHY_CHAT_GET_CLASS (chat)->get_name) {
1247                 return EMPATHY_CHAT_GET_CLASS (chat)->get_name (chat);
1248         }
1249
1250         return NULL;
1251 }
1252
1253 gchar *
1254 empathy_chat_get_tooltip (EmpathyChat *chat)
1255 {
1256         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1257
1258         if (EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip) {
1259                 return EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1260         }
1261
1262         return NULL;
1263 }
1264
1265 const gchar *
1266 empathy_chat_get_status_icon_name (EmpathyChat *chat)
1267 {
1268         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1269
1270         if (EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1271                 return EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1272         }
1273
1274         return NULL;
1275 }
1276
1277 GtkWidget *
1278 empathy_chat_get_widget (EmpathyChat *chat)
1279 {
1280         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1281
1282         if (EMPATHY_CHAT_GET_CLASS (chat)->get_widget) {
1283                 return EMPATHY_CHAT_GET_CLASS (chat)->get_widget (chat);
1284         }
1285
1286         return NULL;
1287 }
1288
1289 gboolean
1290 empathy_chat_is_group_chat (EmpathyChat *chat)
1291 {
1292         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1293
1294         if (EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat) {
1295                 return EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1296         }
1297
1298         return FALSE;
1299 }
1300
1301 gboolean
1302 empathy_chat_is_connected (EmpathyChat *chat)
1303 {
1304         EmpathyChatPriv *priv;
1305
1306         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1307
1308         priv = GET_PRIV (chat);
1309
1310         return (priv->tp_chat != NULL);
1311 }
1312
1313 void
1314 empathy_chat_save_geometry (EmpathyChat *chat,
1315                            gint        x,
1316                            gint        y,
1317                            gint        w,
1318                            gint        h)
1319 {
1320         empathy_geometry_save (empathy_chat_get_id (chat), x, y, w, h);
1321 }
1322
1323 void
1324 empathy_chat_load_geometry (EmpathyChat *chat,
1325                            gint       *x,
1326                            gint       *y,
1327                            gint       *w,
1328                            gint       *h)
1329 {
1330         empathy_geometry_load (empathy_chat_get_id (chat), x, y, w, h);
1331 }
1332
1333 void
1334 empathy_chat_set_tp_chat (EmpathyChat   *chat,
1335                           EmpathyTpChat *tp_chat)
1336 {
1337         EmpathyChatPriv *priv;
1338         GList           *messages, *l;
1339
1340         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1341         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1342
1343         priv = GET_PRIV (chat);
1344
1345         if (tp_chat == priv->tp_chat) {
1346                 return;
1347         }
1348
1349         if (priv->tp_chat) {
1350                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1351                                                       chat_message_received_cb,
1352                                                       chat);
1353                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1354                                                       chat_send_error_cb,
1355                                                       chat);
1356                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1357                                                       chat_destroy_cb,
1358                                                       chat);
1359                 g_object_unref (priv->tp_chat);
1360         }
1361
1362         g_free (priv->id);
1363         priv->tp_chat = g_object_ref (tp_chat);
1364         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1365
1366         if (priv->first_tp_chat) {
1367                 chat_add_logs (chat);
1368                 priv->first_tp_chat = FALSE;
1369         }
1370
1371         g_signal_connect (tp_chat, "message-received",
1372                           G_CALLBACK (chat_message_received_cb),
1373                           chat);
1374         g_signal_connect (tp_chat, "send-error",
1375                           G_CALLBACK (chat_send_error_cb),
1376                           chat);
1377         g_signal_connect (tp_chat, "chat-state-changed",
1378                           G_CALLBACK (chat_state_changed_cb),
1379                           chat);
1380         g_signal_connect (tp_chat, "destroy",
1381                           G_CALLBACK (chat_destroy_cb),
1382                           chat);
1383
1384         /* Get pending messages */
1385         empathy_tp_chat_set_acknowledge (tp_chat, TRUE);
1386         messages = empathy_tp_chat_get_pendings (tp_chat);
1387         for (l = messages; l; l = l->next) {
1388                 chat_message_received_cb (tp_chat, l->data, chat);
1389                 g_object_unref (l->data);
1390         }
1391         g_list_free (messages);
1392
1393         if (!priv->sensitive) {
1394                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
1395                 empathy_chat_view_append_event (chat->view, _("Connected"));
1396                 priv->sensitive = TRUE;
1397         }
1398
1399         if (EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat) {
1400                 EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat (chat, tp_chat);
1401         }
1402
1403 }
1404
1405 const gchar *
1406 empathy_chat_get_id (EmpathyChat *chat)
1407 {
1408         EmpathyChatPriv *priv;
1409
1410         priv = GET_PRIV (chat);
1411
1412         return priv->id;
1413 }
1414
1415 void
1416 empathy_chat_clear (EmpathyChat *chat)
1417 {
1418         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1419
1420         empathy_chat_view_clear (chat->view);
1421 }
1422
1423 void
1424 empathy_chat_set_window (EmpathyChat       *chat,
1425                         EmpathyChatWindow *window)
1426 {
1427         EmpathyChatPriv *priv;
1428
1429         priv = GET_PRIV (chat);
1430         priv->window = window;
1431 }
1432
1433 EmpathyChatWindow *
1434 empathy_chat_get_window (EmpathyChat *chat)
1435 {
1436         EmpathyChatPriv *priv;
1437
1438         priv = GET_PRIV (chat);
1439
1440         return priv->window;
1441 }
1442
1443 void
1444 empathy_chat_scroll_down (EmpathyChat *chat)
1445 {
1446         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1447
1448         empathy_chat_view_scroll_down (chat->view);
1449 }
1450
1451 void
1452 empathy_chat_cut (EmpathyChat *chat)
1453 {
1454         GtkTextBuffer *buffer;
1455
1456         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1457
1458         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1459         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1460                 GtkClipboard *clipboard;
1461
1462                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1463
1464                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1465         }
1466 }
1467
1468 void
1469 empathy_chat_copy (EmpathyChat *chat)
1470 {
1471         GtkTextBuffer *buffer;
1472
1473         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1474
1475         if (empathy_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1476                 empathy_chat_view_copy_clipboard (chat->view);
1477                 return;
1478         }
1479
1480         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1481         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1482                 GtkClipboard *clipboard;
1483
1484                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1485
1486                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1487         }
1488 }
1489
1490 void
1491 empathy_chat_paste (EmpathyChat *chat)
1492 {
1493         GtkTextBuffer *buffer;
1494         GtkClipboard  *clipboard;
1495
1496         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1497
1498         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1499         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1500
1501         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1502 }
1503
1504 void
1505 empathy_chat_present (EmpathyChat *chat)
1506 {
1507         EmpathyChatPriv *priv;
1508
1509         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1510
1511         priv = GET_PRIV (chat);
1512
1513         if (priv->window == NULL) {
1514                 EmpathyChatWindow *window;
1515
1516                 window = empathy_chat_window_get_default ();
1517                 if (!window) {
1518                         window = empathy_chat_window_new ();
1519                 }
1520
1521                 empathy_chat_window_add_chat (window, chat);
1522         }
1523
1524         empathy_chat_window_switch_to_chat (priv->window, chat);
1525         empathy_window_present (
1526                 GTK_WINDOW (empathy_chat_window_get_dialog (priv->window)),
1527                 TRUE);
1528
1529         gtk_widget_grab_focus (chat->input_text_view);
1530 }
1531
1532 gboolean
1533 empathy_chat_should_play_sound (EmpathyChat *chat)
1534 {
1535         EmpathyChatWindow *window;
1536         gboolean          play = TRUE;
1537
1538         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1539
1540         window = empathy_chat_get_window (chat);
1541         if (!window) {
1542                 return TRUE;
1543         }
1544
1545         play = !empathy_chat_window_has_focus (window);
1546
1547         return play;
1548 }
1549
1550 gboolean
1551 empathy_chat_should_highlight_nick (EmpathyMessage *message)
1552 {
1553         EmpathyContact *contact;
1554         const gchar   *msg, *to;
1555         gchar         *cf_msg, *cf_to;
1556         gchar         *ch;
1557         gboolean       ret_val;
1558
1559         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1560
1561         empathy_debug (DEBUG_DOMAIN, "Highlighting nickname");
1562
1563         ret_val = FALSE;
1564
1565         msg = empathy_message_get_body (message);
1566         if (!msg) {
1567                 return FALSE;
1568         }
1569
1570         contact = empathy_message_get_receiver (message);
1571         if (!contact || !empathy_contact_is_user (contact)) {
1572                 return FALSE;
1573         }
1574
1575         to = empathy_contact_get_name (contact);
1576         if (!to) {
1577                 return FALSE;
1578         }
1579
1580         cf_msg = g_utf8_casefold (msg, -1);
1581         cf_to = g_utf8_casefold (to, -1);
1582
1583         ch = strstr (cf_msg, cf_to);
1584         if (ch == NULL) {
1585                 goto finished;
1586         }
1587
1588         if (ch != cf_msg) {
1589                 /* Not first in the message */
1590                 if ((*(ch - 1) != ' ') &&
1591                     (*(ch - 1) != ',') &&
1592                     (*(ch - 1) != '.')) {
1593                         goto finished;
1594                 }
1595         }
1596
1597         ch = ch + strlen (cf_to);
1598         if (ch >= cf_msg + strlen (cf_msg)) {
1599                 ret_val = TRUE;
1600                 goto finished;
1601         }
1602
1603         if ((*ch == ' ') ||
1604             (*ch == ',') ||
1605             (*ch == '.') ||
1606             (*ch == ':')) {
1607                 ret_val = TRUE;
1608                 goto finished;
1609         }
1610
1611 finished:
1612         g_free (cf_msg);
1613         g_free (cf_to);
1614
1615         return ret_val;
1616 }
1617