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) 2007-2008 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 <libmissioncontrol/mission-control.h>
  38
  39 #include <telepathy-glib/util.h>
  40
  41 #include <libempathy/empathy-contact-manager.h>
  42 #include <libempathy/empathy-log-manager.h>
  43 #include <libempathy/empathy-debug.h>
  44 #include <libempathy/empathy-utils.h>
  45
  46 #include "empathy-chat.h"
  47 #include "empathy-geometry.h"
  48 #include "empathy-conf.h"
  49 #include "empathy-spell.h"
  50 #include "empathy-spell-dialog.h"
  51 #include "empathy-ui-utils.h"
  52 #include "empathy-gtk-marshal.h"
  53
  54 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT, EmpathyChatPriv))
  55
  56 #define DEBUG_DOMAIN "Chat"
  57
  58 #define CHAT_DIR_CREATE_MODE  (S_IRUSR | S_IWUSR | S_IXUSR)
  59 #define CHAT_FILE_CREATE_MODE (S_IRUSR | S_IWUSR)
  60
  61 #define IS_ENTER(v) (v == GDK_Return || v == GDK_ISO_Enter || v == GDK_KP_Enter)
  62
  63 #define MAX_INPUT_HEIGHT 150
  64
  65 #define COMPOSING_STOP_TIMEOUT 5
  66
  67 struct _EmpathyChatPriv {
  68         EmpathyLogManager     *log_manager;
  69         EmpathyTpChat         *tp_chat;
  70         McAccount             *account;
  71         MissionControl        *mc;
  72         GtkWidget             *widget;
  73         guint                  composing_stop_timeout_id;
  74         gboolean               sensitive;
  75         gchar                 *id;
  76         GSList                *sent_messages;
  77         gint                   sent_messages_index;
  78         GList                 *compositors;
  79         guint                  scroll_idle_id;
  80         gboolean               first_tp_chat;
  81         GList                 *backlog_messages;
  82         gboolean               is_first_char;
  83         guint                  block_events_timeout_id;
  84         /* Used to automatically shrink a window that has temporarily
  85          * grown due to long input.
  86          */
  87         gint                   padding_height;
  88         gint                   default_window_height;
  89         gint                   last_input_height;
  90         gboolean               vscroll_visible;
  91 };
  92
  93 typedef struct {
  94         EmpathyChat  *chat;
  95         gchar       *word;
  96
  97         GtkTextIter  start;
  98         GtkTextIter  end;
  99 } EmpathyChatSpell;
 100
 101 static void             empathy_chat_class_init           (EmpathyChatClass       *klass);
 102 static void             empathy_chat_init                 (EmpathyChat            *chat);
 103 static void             chat_finalize                     (GObject                *object);
 104 static void             chat_destroy_cb                   (EmpathyTpChat          *tp_chat,
 105                                                            EmpathyChat            *chat);
 106 static void             chat_send                         (EmpathyChat            *chat,
 107                                                            const gchar            *msg);
 108 static void             chat_input_text_view_send         (EmpathyChat            *chat);
 109 static void             chat_message_received_cb          (EmpathyTpChat          *tp_chat,
 110                                                            EmpathyMessage         *message,
 111                                                            EmpathyChat            *chat);
 112 static void             chat_send_error_cb                (EmpathyTpChat          *tp_chat,
 113                                                            EmpathyMessage         *message,
 114                                                            TpChannelTextSendError  error_code,
 115                                                            EmpathyChat            *chat);
 116 static void             chat_sent_message_add             (EmpathyChat            *chat,
 117                                                            const gchar            *str);
 118 static const gchar *    chat_sent_message_get_next        (EmpathyChat            *chat);
 119 static const gchar *    chat_sent_message_get_last        (EmpathyChat            *chat);
 120 static gboolean         chat_input_key_press_event_cb     (GtkWidget              *widget,
 121                                                            GdkEventKey            *event,
 122                                                            EmpathyChat            *chat);
 123 static void             chat_input_text_buffer_changed_cb (GtkTextBuffer          *buffer,
 124                                                            EmpathyChat            *chat);
 125 static gboolean         chat_text_view_focus_in_event_cb  (GtkWidget              *widget,
 126                                                            GdkEvent               *event,
 127                                                            EmpathyChat            *chat);
 128 static void             chat_text_view_scroll_hide_cb     (GtkWidget              *widget,
 129                                                            EmpathyChat            *chat);
 130 static void             chat_text_view_size_allocate_cb   (GtkWidget              *widget,
 131                                                            GtkAllocation          *allocation,
 132                                                            EmpathyChat            *chat);
 133 static void             chat_text_view_realize_cb         (GtkWidget              *widget,
 134                                                            EmpathyChat            *chat);
 135 static void             chat_text_populate_popup_cb       (GtkTextView            *view,
 136                                                            GtkMenu                *menu,
 137                                                            EmpathyChat            *chat);
 138 static void             chat_text_check_word_spelling_cb  (GtkMenuItem            *menuitem,
 139                                                            EmpathyChatSpell       *chat_spell);
 140 static EmpathyChatSpell *chat_spell_new                   (EmpathyChat            *chat,
 141                                                            const gchar            *word,
 142                                                            GtkTextIter             start,
 143                                                            GtkTextIter             end);
 144 static void             chat_spell_free                   (EmpathyChatSpell       *chat_spell);
 145 static void             chat_composing_start              (EmpathyChat            *chat);
 146 static void             chat_composing_stop               (EmpathyChat            *chat);
 147 static void             chat_composing_remove_timeout     (EmpathyChat            *chat);
 148 static gboolean         chat_composing_stop_timeout_cb    (EmpathyChat            *chat);
 149 static void             chat_state_changed_cb             (EmpathyTpChat          *tp_chat,
 150                                                            EmpathyContact         *contact,
 151                                                            TpChannelChatState      state,
 152                                                            EmpathyChat            *chat);
 153 static void             chat_add_logs                     (EmpathyChat            *chat);
 154 static gboolean         chat_scroll_down_idle_func        (EmpathyChat            *chat);
 155
 156 enum {
 157         COMPOSING,
 158         NEW_MESSAGE,
 159         NAME_CHANGED,
 160         STATUS_CHANGED,
 161         LAST_SIGNAL
 162 };
 163
 164 enum {
 165         PROP_0,
 166         PROP_TP_CHAT
 167 };
 168
 169 static guint signals[LAST_SIGNAL] = { 0 };
 170
 171 G_DEFINE_TYPE (EmpathyChat, empathy_chat, G_TYPE_OBJECT);
 172
 173 static void
 174 chat_get_property (GObject    *object,
 175                    guint       param_id,
 176                    GValue     *value,
 177                    GParamSpec *pspec)
 178 {
 179         EmpathyChatPriv *priv = GET_PRIV (object);
 180
 181         switch (param_id) {
 182         case PROP_TP_CHAT:
 183                 g_value_set_object (value, priv->tp_chat);
 184                 break;
 185         default:
 186                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 187                 break;
 188         };
 189 }
 190
 191 static void
 192 chat_set_property (GObject      *object,
 193                    guint         param_id,
 194                    const GValue *value,
 195                    GParamSpec   *pspec)
 196 {
 197         EmpathyChat *chat = EMPATHY_CHAT (object);
 198
 199         switch (param_id) {
 200         case PROP_TP_CHAT:
 201                 empathy_chat_set_tp_chat (chat,
 202                                           EMPATHY_TP_CHAT (g_value_get_object (value)));
 203                 break;
 204         default:
 205                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 206                 break;
 207         };
 208 }
 209
 210 static void
 211 chat_status_changed_cb (MissionControl           *mc,
 212                         TpConnectionStatus        status,
 213                         McPresence                presence,
 214                         TpConnectionStatusReason  reason,
 215                         const gchar              *unique_name,
 216                         EmpathyChat              *chat)
 217 {
 218         EmpathyChatPriv *priv = GET_PRIV (chat);
 219         McAccount       *account;
 220
 221         account = mc_account_lookup (unique_name);
 222
 223         if (status == TP_CONNECTION_STATUS_CONNECTED && !priv->tp_chat &&
 224             empathy_account_equal (account, priv->account)) {
 225                 TpHandleType handle_type;
 226
 227                 empathy_debug (DEBUG_DOMAIN,
 228                                "Account reconnected, request a new Text channel");
 229
 230                 if (empathy_chat_is_group_chat (chat)) {
 231                         handle_type = TP_HANDLE_TYPE_ROOM;
 232                 } else {
 233                         handle_type = TP_HANDLE_TYPE_CONTACT;
 234                 }
 235
 236                 mission_control_request_channel_with_string_handle (mc,
 237                                                                     priv->account,
 238                                                                     TP_IFACE_CHANNEL_TYPE_TEXT,
 239                                                                     priv->id,
 240                                                                     handle_type,
 241                                                                     NULL, NULL);
 242         }
 243
 244         g_object_unref (account);
 245 }
 246
 247 static void
 248 empathy_chat_class_init (EmpathyChatClass *klass)
 249 {
 250         GObjectClass *object_class;
 251
 252         object_class = G_OBJECT_CLASS (klass);
 253
 254         object_class->finalize = chat_finalize;
 255         object_class->get_property = chat_get_property;
 256         object_class->set_property = chat_set_property;
 257
 258         g_object_class_install_property (object_class,
 259                                          PROP_TP_CHAT,
 260                                          g_param_spec_object ("tp-chat",
 261                                                               "Empathy tp chat",
 262                                                               "The tp chat object",
 263                                                               EMPATHY_TYPE_TP_CHAT,
 264                                                               G_PARAM_CONSTRUCT |
 265                                                               G_PARAM_READWRITE));
 266
 267         signals[COMPOSING] =
 268                 g_signal_new ("composing",
 269                               G_OBJECT_CLASS_TYPE (object_class),
 270                               G_SIGNAL_RUN_LAST,
 271                               0,
 272                               NULL, NULL,
 273                               g_cclosure_marshal_VOID__BOOLEAN,
 274                               G_TYPE_NONE,
 275                               1, G_TYPE_BOOLEAN);
 276
 277         signals[NEW_MESSAGE] =
 278                 g_signal_new ("new-message",
 279                               G_OBJECT_CLASS_TYPE (object_class),
 280                               G_SIGNAL_RUN_LAST,
 281                               0,
 282                               NULL, NULL,
 283                               _empathy_gtk_marshal_VOID__OBJECT_BOOLEAN,
 284                               G_TYPE_NONE,
 285                               2, EMPATHY_TYPE_MESSAGE, G_TYPE_BOOLEAN);
 286
 287         signals[NAME_CHANGED] =
 288                 g_signal_new ("name-changed",
 289                               G_OBJECT_CLASS_TYPE (object_class),
 290                               G_SIGNAL_RUN_LAST,
 291                               0,
 292                               NULL, NULL,
 293                               g_cclosure_marshal_VOID__POINTER,
 294                               G_TYPE_NONE,
 295                               1, G_TYPE_POINTER);
 296
 297         signals[STATUS_CHANGED] =
 298                 g_signal_new ("status-changed",
 299                               G_OBJECT_CLASS_TYPE (object_class),
 300                               G_SIGNAL_RUN_LAST,
 301                               0,
 302                               NULL, NULL,
 303                               g_cclosure_marshal_VOID__VOID,
 304                               G_TYPE_NONE,
 305                               0);
 306
 307         g_type_class_add_private (object_class, sizeof (EmpathyChatPriv));
 308 }
 309
 310 static void
 311 empathy_chat_init (EmpathyChat *chat)
 312 {
 313         EmpathyChatPriv *priv = GET_PRIV (chat);
 314         GtkTextBuffer  *buffer;
 315
 316         chat->view = empathy_chat_view_new ();
 317         chat->input_text_view = gtk_text_view_new ();
 318
 319         priv->is_first_char = TRUE;
 320
 321         g_object_set (chat->input_text_view,
 322                       "pixels-above-lines", 2,
 323                       "pixels-below-lines", 2,
 324                       "pixels-inside-wrap", 1,
 325                       "right-margin", 2,
 326                       "left-margin", 2,
 327                       "wrap-mode", GTK_WRAP_WORD_CHAR,
 328                       NULL);
 329
 330         priv->log_manager = empathy_log_manager_new ();
 331         priv->default_window_height = -1;
 332         priv->vscroll_visible = FALSE;
 333         priv->sensitive = TRUE;
 334         priv->sent_messages = NULL;
 335         priv->sent_messages_index = -1;
 336         priv->first_tp_chat = TRUE;
 337         priv->mc = empathy_mission_control_new ();
 338
 339         dbus_g_proxy_connect_signal (DBUS_G_PROXY (priv->mc), "AccountStatusChanged",
 340                                      G_CALLBACK (chat_status_changed_cb),
 341                                      chat, NULL);
 342
 343         g_signal_connect (chat->input_text_view,
 344                           "key_press_event",
 345                           G_CALLBACK (chat_input_key_press_event_cb),
 346                           chat);
 347
 348         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 349         g_signal_connect (buffer,
 350                           "changed",
 351                           G_CALLBACK (chat_input_text_buffer_changed_cb),
 352                           chat);
 353         g_signal_connect (chat->view,
 354                           "focus_in_event",
 355                           G_CALLBACK (chat_text_view_focus_in_event_cb),
 356                           chat);
 357
 358         g_signal_connect (chat->input_text_view,
 359                           "size_allocate",
 360                           G_CALLBACK (chat_text_view_size_allocate_cb),
 361                           chat);
 362
 363         g_signal_connect (chat->input_text_view,
 364                           "realize",
 365                           G_CALLBACK (chat_text_view_realize_cb),
 366                           chat);
 367
 368         g_signal_connect (GTK_TEXT_VIEW (chat->input_text_view),
 369                           "populate_popup",
 370                           G_CALLBACK (chat_text_populate_popup_cb),
 371                           chat);
 372
 373         /* create misspelt words identification tag */
 374         gtk_text_buffer_create_tag (buffer,
 375                                     "misspelled",
 376                                     "underline", PANGO_UNDERLINE_ERROR,
 377                                     NULL);
 378 }
 379
 380 static void
 381 chat_finalize (GObject *object)
 382 {
 383         EmpathyChat     *chat;
 384         EmpathyChatPriv *priv;
 385
 386         chat = EMPATHY_CHAT (object);
 387         priv = GET_PRIV (chat);
 388
 389         empathy_debug (DEBUG_DOMAIN, "Finalized: %p", object);
 390
 391         g_slist_foreach (priv->sent_messages, (GFunc) g_free, NULL);
 392         g_slist_free (priv->sent_messages);
 393
 394         g_list_foreach (priv->compositors, (GFunc) g_object_unref, NULL);
 395         g_list_free (priv->compositors);
 396
 397         chat_composing_remove_timeout (chat);
 398         g_object_unref (priv->log_manager);
 399
 400         dbus_g_proxy_disconnect_signal (DBUS_G_PROXY (priv->mc), "AccountStatusChanged",
 401                                         G_CALLBACK (chat_status_changed_cb),
 402                                         chat);
 403         g_object_unref (priv->mc);
 404
 405
 406         if (priv->tp_chat) {
 407                 g_object_unref (priv->tp_chat);
 408         }
 409
 410         if (priv->account) {
 411                 g_object_unref (priv->account);
 412         }
 413
 414         if (priv->scroll_idle_id) {
 415                 g_source_remove (priv->scroll_idle_id);
 416         }
 417
 418         if (priv->block_events_timeout_id) {
 419                 g_source_remove (priv->block_events_timeout_id);
 420         }
 421
 422         g_free (priv->id);
 423
 424         G_OBJECT_CLASS (empathy_chat_parent_class)->finalize (object);
 425 }
 426
 427 static void
 428 chat_destroy_cb (EmpathyTpChat *tp_chat,
 429                  EmpathyChat    *chat)
 430 {
 431         EmpathyChatPriv *priv;
 432
 433         priv = GET_PRIV (chat);
 434
 435         if (priv->tp_chat) {
 436                 g_object_unref (priv->tp_chat);
 437                 priv->tp_chat = NULL;
 438         }
 439         priv->sensitive = FALSE;
 440
 441         empathy_chat_view_append_event (chat->view, _("Disconnected"));
 442         gtk_widget_set_sensitive (chat->input_text_view, FALSE);
 443
 444         if (priv->block_events_timeout_id != 0) {
 445                 g_source_remove (priv->block_events_timeout_id);
 446         }
 447
 448         if (EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat) {
 449                 EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat (chat, NULL);
 450         }
 451 }
 452
 453 static void
 454 chat_send (EmpathyChat  *chat,
 455            const gchar *msg)
 456 {
 457         EmpathyChatPriv *priv;
 458         EmpathyMessage  *message;
 459
 460         priv = GET_PRIV (chat);
 461
 462         if (G_STR_EMPTY (msg)) {
 463                 return;
 464         }
 465
 466         chat_sent_message_add (chat, msg);
 467
 468         if (g_str_has_prefix (msg, "/clear")) {
 469                 empathy_chat_view_clear (chat->view);
 470                 return;
 471         }
 472
 473         /* FIXME: add here something to let group/privrate chat handle
 474          *        some special messages */
 475
 476         message = empathy_message_new (msg);
 477
 478         empathy_tp_chat_send (priv->tp_chat, message);
 479
 480         g_object_unref (message);
 481 }
 482
 483 static void
 484 chat_input_text_view_send (EmpathyChat *chat)
 485 {
 486         EmpathyChatPriv *priv;
 487         GtkTextBuffer  *buffer;
 488         GtkTextIter     start, end;
 489         gchar          *msg;
 490
 491         priv = GET_PRIV (chat);
 492
 493         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 494
 495         gtk_text_buffer_get_bounds (buffer, &start, &end);
 496         msg = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 497
 498         /* clear the input field */
 499         gtk_text_buffer_set_text (buffer, "", -1);
 500
 501         chat_send (chat, msg);
 502
 503         g_free (msg);
 504
 505         priv->is_first_char = TRUE;
 506 }
 507
 508 static void
 509 chat_message_received_cb (EmpathyTpChat  *tp_chat,
 510                           EmpathyMessage *message,
 511                           EmpathyChat    *chat)
 512 {
 513         EmpathyChatPriv *priv;
 514         EmpathyContact  *sender;
 515         const gchar     *body;
 516
 517         priv = GET_PRIV (chat);
 518
 519         sender = empathy_message_get_sender (message);
 520         body = empathy_message_get_body (message);
 521         while (priv->backlog_messages) {
 522                 EmpathyMessage *log_message;
 523                 EmpathyContact *log_sender;
 524                 const gchar    *log_body;
 525
 526                 log_message = priv->backlog_messages->data;
 527                 log_sender = empathy_message_get_sender (log_message);
 528                 log_body = empathy_message_get_body (log_message);
 529
 530                 priv->backlog_messages = g_list_remove (priv->backlog_messages,
 531                                                         log_message);
 532
 533                 if (empathy_contact_equal (sender, log_sender) &&
 534                     !tp_strdiff (body, log_body)) {
 535                         /* The message we received is already displayed because
 536                          * some jabber chatrooms sends us back logs and we
 537                          * already displayed it from localy logged messages. */
 538                         empathy_debug (DEBUG_DOMAIN, "Skipping message because "
 539                                        "it is already displayed from logged "
 540                                        "messages");
 541                         g_object_unref (log_message);
 542                         return;
 543                 }
 544                 g_object_unref (log_message);
 545         }
 546
 547         empathy_debug (DEBUG_DOMAIN, "Appending new message from %s (%d)",
 548                        empathy_contact_get_name (sender),
 549                        empathy_contact_get_handle (sender));
 550
 551         empathy_log_manager_add_message (priv->log_manager,
 552                                          empathy_chat_get_id (chat),
 553                                          empathy_chat_is_group_chat (chat),
 554                                          message);
 555
 556         empathy_chat_view_append_message (chat->view, message);
 557
 558         if (empathy_chat_should_play_sound (chat)) {
 559                 // FIXME: empathy_sound_play (EMPATHY_SOUND_CHAT);
 560         }
 561
 562         /* We received a message so the contact is no more composing */
 563         chat_state_changed_cb (tp_chat, sender,
 564                                TP_CHANNEL_CHAT_STATE_ACTIVE,
 565                                chat);
 566
 567         g_signal_emit (chat, signals[NEW_MESSAGE], 0, message, FALSE);
 568 }
 569
 570 static void
 571 chat_send_error_cb (EmpathyTpChat          *tp_chat,
 572                     EmpathyMessage         *message,
 573                     TpChannelTextSendError  error_code,
 574                     EmpathyChat            *chat)
 575 {
 576         const gchar *error;
 577         gchar       *str;
 578
 579         switch (error_code) {
 580         case TP_CHANNEL_TEXT_SEND_ERROR_OFFLINE:
 581                 error = _("offline");
 582                 break;
 583         case TP_CHANNEL_TEXT_SEND_ERROR_INVALID_CONTACT:
 584                 error = _("invalid contact");
 585                 break;
 586         case TP_CHANNEL_TEXT_SEND_ERROR_PERMISSION_DENIED:
 587                 error = _("permission denied");
 588                 break;
 589         case TP_CHANNEL_TEXT_SEND_ERROR_TOO_LONG:
 590                 error = _("too long message");
 591                 break;
 592         case TP_CHANNEL_TEXT_SEND_ERROR_NOT_IMPLEMENTED:
 593                 error = _("not implemented");
 594                 break;
 595         default:
 596                 error = _("unknown");
 597                 break;
 598         }
 599
 600         str = g_strdup_printf (_("Error sending message '%s': %s"),
 601                                empathy_message_get_body (message),
 602                                error);
 603         empathy_chat_view_append_event (chat->view, str);
 604         g_free (str);
 605 }
 606
 607 static void
 608 chat_sent_message_add (EmpathyChat  *chat,
 609                        const gchar *str)
 610 {
 611         EmpathyChatPriv *priv;
 612         GSList         *list;
 613         GSList         *item;
 614
 615         priv = GET_PRIV (chat);
 616
 617         /* Save the sent message in our repeat buffer */
 618         list = priv->sent_messages;
 619
 620         /* Remove any other occurances of this msg */
 621         while ((item = g_slist_find_custom (list, str, (GCompareFunc) strcmp)) != NULL) {
 622                 list = g_slist_remove_link (list, item);
 623                 g_free (item->data);
 624                 g_slist_free1 (item);
 625         }
 626
 627         /* Trim the list to the last 10 items */
 628         while (g_slist_length (list) > 10) {
 629                 item = g_slist_last (list);
 630                 if (item) {
 631                         list = g_slist_remove_link (list, item);
 632                         g_free (item->data);
 633                         g_slist_free1 (item);
 634                 }
 635         }
 636
 637         /* Add new message */
 638         list = g_slist_prepend (list, g_strdup (str));
 639
 640         /* Set list and reset the index */
 641         priv->sent_messages = list;
 642         priv->sent_messages_index = -1;
 643 }
 644
 645 static const gchar *
 646 chat_sent_message_get_next (EmpathyChat *chat)
 647 {
 648         EmpathyChatPriv *priv;
 649         gint            max;
 650
 651         priv = GET_PRIV (chat);
 652
 653         if (!priv->sent_messages) {
 654                 empathy_debug (DEBUG_DOMAIN,
 655                               "No sent messages, next message is NULL");
 656                 return NULL;
 657         }
 658
 659         max = g_slist_length (priv->sent_messages) - 1;
 660
 661         if (priv->sent_messages_index < max) {
 662                 priv->sent_messages_index++;
 663         }
 664
 665         empathy_debug (DEBUG_DOMAIN,
 666                       "Returning next message index:%d",
 667                       priv->sent_messages_index);
 668
 669         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 670 }
 671
 672 static const gchar *
 673 chat_sent_message_get_last (EmpathyChat *chat)
 674 {
 675         EmpathyChatPriv *priv;
 676
 677         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
 678
 679         priv = GET_PRIV (chat);
 680
 681         if (!priv->sent_messages) {
 682                 empathy_debug (DEBUG_DOMAIN,
 683                               "No sent messages, last message is NULL");
 684                 return NULL;
 685         }
 686
 687         if (priv->sent_messages_index >= 0) {
 688                 priv->sent_messages_index--;
 689         }
 690
 691         empathy_debug (DEBUG_DOMAIN,
 692                       "Returning last message index:%d",
 693                       priv->sent_messages_index);
 694
 695         return g_slist_nth_data (priv->sent_messages, priv->sent_messages_index);
 696 }
 697
 698 static gboolean
 699 chat_input_key_press_event_cb (GtkWidget   *widget,
 700                                GdkEventKey *event,
 701                                EmpathyChat *chat)
 702 {
 703         EmpathyChatPriv *priv;
 704         GtkAdjustment  *adj;
 705         gdouble         val;
 706         GtkWidget      *text_view_sw;
 707
 708         priv = GET_PRIV (chat);
 709
 710         /* Catch ctrl+up/down so we can traverse messages we sent */
 711         if ((event->state & GDK_CONTROL_MASK) &&
 712             (event->keyval == GDK_Up ||
 713              event->keyval == GDK_Down)) {
 714                 GtkTextBuffer *buffer;
 715                 const gchar   *str;
 716
 717                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
 718
 719                 if (event->keyval == GDK_Up) {
 720                         str = chat_sent_message_get_next (chat);
 721                 } else {
 722                         str = chat_sent_message_get_last (chat);
 723                 }
 724
 725                 g_signal_handlers_block_by_func (buffer,
 726                                                  chat_input_text_buffer_changed_cb,
 727                                                  chat);
 728                 gtk_text_buffer_set_text (buffer, str ? str : "", -1);
 729                 g_signal_handlers_unblock_by_func (buffer,
 730                                                    chat_input_text_buffer_changed_cb,
 731                                                    chat);
 732
 733                 return TRUE;
 734         }
 735
 736         /* Catch enter but not ctrl/shift-enter */
 737         if (IS_ENTER (event->keyval) &&
 738             !(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 739                 GtkTextView *view;
 740
 741                 /* This is to make sure that kinput2 gets the enter. And if
 742                  * it's handled there we shouldn't send on it. This is because
 743                  * kinput2 uses Enter to commit letters. See:
 744                  * http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=104299
 745                  */
 746
 747                 view = GTK_TEXT_VIEW (chat->input_text_view);
 748                 if (gtk_im_context_filter_keypress (view->im_context, event)) {
 749                         GTK_TEXT_VIEW (chat->input_text_view)->need_im_reset = TRUE;
 750                         return TRUE;
 751                 }
 752
 753                 chat_input_text_view_send (chat);
 754                 return TRUE;
 755         }
 756
 757         text_view_sw = gtk_widget_get_parent (GTK_WIDGET (chat->view));
 758
 759         if (IS_ENTER (event->keyval) &&
 760             (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))) {
 761                 /* Newline for shift/control-enter. */
 762                 return FALSE;
 763         }
 764         else if (!(event->state & GDK_CONTROL_MASK) &&
 765                  event->keyval == GDK_Page_Up) {
 766                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 767                 gtk_adjustment_set_value (adj, adj->value - adj->page_size);
 768
 769                 return TRUE;
 770         }
 771         else if ((event->state & GDK_CONTROL_MASK) != GDK_CONTROL_MASK &&
 772                  event->keyval == GDK_Page_Down) {
 773                 adj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (text_view_sw));
 774                 val = MIN (adj->value + adj->page_size, adj->upper - adj->page_size);
 775                 gtk_adjustment_set_value (adj, val);
 776
 777                 return TRUE;
 778         }
 779
 780         if (EMPATHY_CHAT_GET_CLASS (chat)->key_press_event) {
 781                 return EMPATHY_CHAT_GET_CLASS (chat)->key_press_event (chat, event);
 782         }
 783
 784         return FALSE;
 785 }
 786
 787 static gboolean
 788 chat_text_view_focus_in_event_cb (GtkWidget  *widget,
 789                                   GdkEvent   *event,
 790                                   EmpathyChat *chat)
 791 {
 792         gtk_widget_grab_focus (chat->input_text_view);
 793
 794         return TRUE;
 795 }
 796
 797 static void
 798 chat_input_text_buffer_changed_cb (GtkTextBuffer *buffer,
 799                                    EmpathyChat    *chat)
 800 {
 801         EmpathyChatPriv *priv;
 802         GtkTextIter     start, end;
 803         gchar          *str;
 804         gboolean        spell_checker = FALSE;
 805
 806         priv = GET_PRIV (chat);
 807
 808         if (gtk_text_buffer_get_char_count (buffer) == 0) {
 809                 chat_composing_stop (chat);
 810         } else {
 811                 chat_composing_start (chat);
 812         }
 813
 814         empathy_conf_get_bool (empathy_conf_get (),
 815                               EMPATHY_PREFS_CHAT_SPELL_CHECKER_ENABLED,
 816                               &spell_checker);
 817
 818         if (priv->is_first_char) {
 819                 GtkRequisition  req;
 820                 gint            window_height;
 821                 GtkWindow      *dialog;
 822                 GtkAllocation  *allocation;
 823
 824                 /* Save the window's size */
 825                 dialog = empathy_get_toplevel_window (priv->widget);
 826                 if (dialog) {
 827                         gtk_window_get_size (GTK_WINDOW (dialog), NULL, &window_height);
 828                         gtk_widget_size_request (chat->input_text_view, &req);
 829                         allocation = &GTK_WIDGET (chat->view)->allocation;
 830
 831                         priv->default_window_height = window_height;
 832                         priv->last_input_height = req.height;
 833                         priv->padding_height = window_height - req.height - allocation->height;
 834                 }
 835
 836                 priv->is_first_char = FALSE;
 837         }
 838
 839         gtk_text_buffer_get_start_iter (buffer, &start);
 840
 841         if (!spell_checker) {
 842                 gtk_text_buffer_get_end_iter (buffer, &end);
 843                 gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 844                 return;
 845         }
 846
 847         if (!empathy_spell_supported ()) {
 848                 return;
 849         }
 850
 851         /* NOTE: this is really inefficient, we shouldn't have to
 852            reiterate the whole buffer each time and check each work
 853            every time. */
 854         while (TRUE) {
 855                 gboolean correct = FALSE;
 856
 857                 /* if at start */
 858                 if (gtk_text_iter_is_start (&start)) {
 859                         end = start;
 860
 861                         if (!gtk_text_iter_forward_word_end (&end)) {
 862                                 /* no whole word yet */
 863                                 break;
 864                         }
 865                 } else {
 866                         if (!gtk_text_iter_forward_word_end (&end)) {
 867                                 /* must be the end of the buffer */
 868                                 break;
 869                         }
 870
 871                         start = end;
 872                         gtk_text_iter_backward_word_start (&start);
 873                 }
 874
 875                 str = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 876
 877                 /* spell check string */
 878                 if (!empathy_chat_get_is_command (str)) {
 879                         correct = empathy_spell_check (str);
 880                 } else {
 881                         correct = TRUE;
 882                 }
 883
 884                 if (!correct) {
 885                         gtk_text_buffer_apply_tag_by_name (buffer, "misspelled", &start, &end);
 886                 } else {
 887                         gtk_text_buffer_remove_tag_by_name (buffer, "misspelled", &start, &end);
 888                 }
 889
 890                 g_free (str);
 891
 892                 /* set start iter to the end iters position */
 893                 start = end;
 894         }
 895 }
 896
 897 typedef struct {
 898         GtkWindow *window;
 899         gint       width;
 900         gint       height;
 901 } ChangeSizeData;
 902
 903 static gboolean
 904 chat_change_size_in_idle_cb (ChangeSizeData *data)
 905 {
 906         gtk_window_resize (data->window, data->width, data->height);
 907
 908         return FALSE;
 909 }
 910
 911 static void
 912 chat_text_view_scroll_hide_cb (GtkWidget  *widget,
 913                                EmpathyChat *chat)
 914 {
 915         EmpathyChatPriv *priv;
 916         GtkWidget      *sw;
 917
 918         priv = GET_PRIV (chat);
 919
 920         priv->vscroll_visible = FALSE;
 921         g_signal_handlers_disconnect_by_func (widget, chat_text_view_scroll_hide_cb, chat);
 922
 923         sw = gtk_widget_get_parent (chat->input_text_view);
 924         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 925                                         GTK_POLICY_NEVER,
 926                                         GTK_POLICY_NEVER);
 927         g_object_set (sw, "height-request", -1, NULL);
 928 }
 929
 930 static void
 931 chat_text_view_size_allocate_cb (GtkWidget     *widget,
 932                                  GtkAllocation *allocation,
 933                                  EmpathyChat    *chat)
 934 {
 935         EmpathyChatPriv *priv;
 936         gint            width;
 937         GtkWindow      *dialog;
 938         ChangeSizeData *data;
 939         gint            window_height;
 940         gint            new_height;
 941         GtkAllocation  *view_allocation;
 942         gint            current_height;
 943         gint            diff;
 944         GtkWidget      *sw;
 945
 946         priv = GET_PRIV (chat);
 947
 948         if (priv->default_window_height <= 0) {
 949                 return;
 950         }
 951
 952         sw = gtk_widget_get_parent (widget);
 953         if (sw->allocation.height >= MAX_INPUT_HEIGHT && !priv->vscroll_visible) {
 954                 GtkWidget *vscroll;
 955
 956                 priv->vscroll_visible = TRUE;
 957                 gtk_widget_set_size_request (sw, sw->allocation.width, MAX_INPUT_HEIGHT);
 958                 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 959                                                 GTK_POLICY_NEVER,
 960                                                 GTK_POLICY_AUTOMATIC);
 961                 vscroll = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
 962                 g_signal_connect (vscroll, "hide",
 963                                   G_CALLBACK (chat_text_view_scroll_hide_cb),
 964                                   chat);
 965         }
 966
 967         if (priv->last_input_height <= allocation->height) {
 968                 priv->last_input_height = allocation->height;
 969                 return;
 970         }
 971
 972         diff = priv->last_input_height - allocation->height;
 973         priv->last_input_height = allocation->height;
 974
 975         view_allocation = &GTK_WIDGET (chat->view)->allocation;
 976
 977         dialog = empathy_get_toplevel_window (priv->widget);
 978         gtk_window_get_size (dialog, NULL, &current_height);
 979
 980         new_height = view_allocation->height + priv->padding_height + allocation->height - diff;
 981
 982         if (new_height <= priv->default_window_height) {
 983                 window_height = priv->default_window_height;
 984         } else {
 985                 window_height = new_height;
 986         }
 987
 988         if (current_height <= window_height) {
 989                 return;
 990         }
 991
 992         /* Restore the window's size */
 993         gtk_window_get_size (dialog, &width, NULL);
 994
 995         data = g_new0 (ChangeSizeData, 1);
 996         data->window = dialog;
 997         data->width  = width;
 998         data->height = window_height;
 999
1000         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE,
1001                          (GSourceFunc) chat_change_size_in_idle_cb,
1002                          data, g_free);
1003 }
1004
1005 static void
1006 chat_text_view_realize_cb (GtkWidget  *widget,
1007                            EmpathyChat *chat)
1008 {
1009         empathy_debug (DEBUG_DOMAIN, "Setting focus to the input text view");
1010         gtk_widget_grab_focus (widget);
1011 }
1012
1013 static void
1014 chat_insert_smiley_activate_cb (GtkWidget   *menuitem,
1015                                 EmpathyChat *chat)
1016 {
1017         GtkTextBuffer *buffer;
1018         GtkTextIter    iter;
1019         const gchar   *smiley;
1020
1021         smiley = g_object_get_data (G_OBJECT (menuitem), "smiley_text");
1022
1023         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1024
1025         gtk_text_buffer_get_end_iter (buffer, &iter);
1026         gtk_text_buffer_insert (buffer, &iter, smiley, -1);
1027
1028         gtk_text_buffer_get_end_iter (buffer, &iter);
1029         gtk_text_buffer_insert (buffer, &iter, " ", -1);
1030 }
1031
1032 static void
1033 chat_text_populate_popup_cb (GtkTextView *view,
1034                              GtkMenu     *menu,
1035                              EmpathyChat  *chat)
1036 {
1037         EmpathyChatPriv  *priv;
1038         GtkTextBuffer   *buffer;
1039         GtkTextTagTable *table;
1040         GtkTextTag      *tag;
1041         gint             x, y;
1042         GtkTextIter      iter, start, end;
1043         GtkWidget       *item;
1044         gchar           *str = NULL;
1045         EmpathyChatSpell *chat_spell;
1046         GtkWidget       *smiley_menu;
1047
1048         priv = GET_PRIV (chat);
1049
1050         /* Add the emoticon menu. */
1051         item = gtk_separator_menu_item_new ();
1052         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1053         gtk_widget_show (item);
1054
1055         item = gtk_menu_item_new_with_mnemonic (_("Insert Smiley"));
1056         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1057         gtk_widget_show (item);
1058
1059         smiley_menu = empathy_chat_view_get_smiley_menu (
1060                 G_CALLBACK (chat_insert_smiley_activate_cb),
1061                 chat);
1062         gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), smiley_menu);
1063
1064         /* Add the spell check menu item. */
1065         buffer = gtk_text_view_get_buffer (view);
1066         table = gtk_text_buffer_get_tag_table (buffer);
1067
1068         tag = gtk_text_tag_table_lookup (table, "misspelled");
1069
1070         gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
1071
1072         gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
1073                                                GTK_TEXT_WINDOW_WIDGET,
1074                                                x, y,
1075                                                &x, &y);
1076
1077         gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
1078
1079         start = end = iter;
1080
1081         if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
1082             gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
1083
1084                 str = gtk_text_buffer_get_text (buffer,
1085                                                 &start, &end, FALSE);
1086         }
1087
1088         if (G_STR_EMPTY (str)) {
1089                 return;
1090         }
1091
1092         chat_spell = chat_spell_new (chat, str, start, end);
1093
1094         g_object_set_data_full (G_OBJECT (menu),
1095                                 "chat_spell", chat_spell,
1096                                 (GDestroyNotify) chat_spell_free);
1097
1098         item = gtk_separator_menu_item_new ();
1099         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1100         gtk_widget_show (item);
1101
1102         item = gtk_menu_item_new_with_mnemonic (_("_Check Word Spelling..."));
1103         g_signal_connect (item,
1104                           "activate",
1105                           G_CALLBACK (chat_text_check_word_spelling_cb),
1106                           chat_spell);
1107         gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
1108         gtk_widget_show (item);
1109 }
1110
1111 static void
1112 chat_text_check_word_spelling_cb (GtkMenuItem     *menuitem,
1113                                   EmpathyChatSpell *chat_spell)
1114 {
1115         empathy_spell_dialog_show (chat_spell->chat,
1116                                   chat_spell->start,
1117                                   chat_spell->end,
1118                                   chat_spell->word);
1119 }
1120
1121 static EmpathyChatSpell *
1122 chat_spell_new (EmpathyChat  *chat,
1123                 const gchar *word,
1124                 GtkTextIter  start,
1125                 GtkTextIter  end)
1126 {
1127         EmpathyChatSpell *chat_spell;
1128
1129         chat_spell = g_new0 (EmpathyChatSpell, 1);
1130
1131         chat_spell->chat = g_object_ref (chat);
1132         chat_spell->word = g_strdup (word);
1133         chat_spell->start = start;
1134         chat_spell->end = end;
1135
1136         return chat_spell;
1137 }
1138
1139 static void
1140 chat_spell_free (EmpathyChatSpell *chat_spell)
1141 {
1142         g_object_unref (chat_spell->chat);
1143         g_free (chat_spell->word);
1144         g_free (chat_spell);
1145 }
1146
1147 static void
1148 chat_composing_start (EmpathyChat *chat)
1149 {
1150         EmpathyChatPriv *priv;
1151
1152         priv = GET_PRIV (chat);
1153
1154         if (priv->composing_stop_timeout_id) {
1155                 /* Just restart the timeout */
1156                 chat_composing_remove_timeout (chat);
1157         } else {
1158                 empathy_tp_chat_set_state (priv->tp_chat,
1159                                            TP_CHANNEL_CHAT_STATE_COMPOSING);
1160         }
1161
1162         priv->composing_stop_timeout_id = g_timeout_add_seconds (
1163                 COMPOSING_STOP_TIMEOUT,
1164                 (GSourceFunc) chat_composing_stop_timeout_cb,
1165                 chat);
1166 }
1167
1168 static void
1169 chat_composing_stop (EmpathyChat *chat)
1170 {
1171         EmpathyChatPriv *priv;
1172
1173         priv = GET_PRIV (chat);
1174
1175         chat_composing_remove_timeout (chat);
1176         empathy_tp_chat_set_state (priv->tp_chat,
1177                                    TP_CHANNEL_CHAT_STATE_ACTIVE);
1178 }
1179
1180 static void
1181 chat_composing_remove_timeout (EmpathyChat *chat)
1182 {
1183         EmpathyChatPriv *priv;
1184
1185         priv = GET_PRIV (chat);
1186
1187         if (priv->composing_stop_timeout_id) {
1188                 g_source_remove (priv->composing_stop_timeout_id);
1189                 priv->composing_stop_timeout_id = 0;
1190         }
1191 }
1192
1193 static gboolean
1194 chat_composing_stop_timeout_cb (EmpathyChat *chat)
1195 {
1196         EmpathyChatPriv *priv;
1197
1198         priv = GET_PRIV (chat);
1199
1200         priv->composing_stop_timeout_id = 0;
1201         empathy_tp_chat_set_state (priv->tp_chat,
1202                                    TP_CHANNEL_CHAT_STATE_PAUSED);
1203
1204         return FALSE;
1205 }
1206
1207 static void
1208 chat_state_changed_cb (EmpathyTpChat      *tp_chat,
1209                        EmpathyContact     *contact,
1210                        TpChannelChatState  state,
1211                        EmpathyChat        *chat)
1212 {
1213         EmpathyChatPriv *priv;
1214         GList          *l;
1215         gboolean        was_composing;
1216
1217         priv = GET_PRIV (chat);
1218
1219         if (empathy_contact_is_user (contact)) {
1220                 /* We don't care about our own chat state */
1221                 return;
1222         }
1223
1224         was_composing = (priv->compositors != NULL);
1225
1226         /* Find the contact in the list. After that l is the list elem or NULL */
1227         for (l = priv->compositors; l; l = l->next) {
1228                 if (contact == l->data) {
1229                         break;
1230                 }
1231         }
1232
1233         switch (state) {
1234         case TP_CHANNEL_CHAT_STATE_GONE:
1235         case TP_CHANNEL_CHAT_STATE_INACTIVE:
1236         case TP_CHANNEL_CHAT_STATE_PAUSED:
1237         case TP_CHANNEL_CHAT_STATE_ACTIVE:
1238                 /* Contact is not composing */
1239                 if (l) {
1240                         priv->compositors = g_list_remove_link (priv->compositors, l);
1241                         g_object_unref (l->data);
1242                         g_list_free1 (l);
1243                 }
1244                 break;
1245         case TP_CHANNEL_CHAT_STATE_COMPOSING:
1246                 /* Contact is composing */
1247                 if (!l) {
1248                         priv->compositors = g_list_prepend (priv->compositors,
1249                                                             g_object_ref (contact));
1250                 }
1251                 break;
1252         default:
1253                 g_assert_not_reached ();
1254         }
1255
1256         empathy_debug (DEBUG_DOMAIN, "Was composing: %s now composing: %s",
1257                       was_composing ? "yes" : "no",
1258                       priv->compositors ? "yes" : "no");
1259
1260         if ((was_composing && !priv->compositors) ||
1261             (!was_composing && priv->compositors)) {
1262                 /* Composing state changed */
1263                 g_signal_emit (chat, signals[COMPOSING], 0,
1264                                priv->compositors != NULL);
1265         }
1266 }
1267
1268 static void
1269 chat_add_logs (EmpathyChat *chat)
1270 {
1271         EmpathyChatPriv *priv;
1272         GList          *messages, *l;
1273         guint           num_messages;
1274         guint           i;
1275
1276         priv = GET_PRIV (chat);
1277
1278         /* Turn off scrolling temporarily */
1279         empathy_chat_view_scroll (chat->view, FALSE);
1280
1281         /* Add messages from last conversation */
1282         messages = empathy_log_manager_get_last_messages (priv->log_manager,
1283                                                           priv->account,
1284                                                           empathy_chat_get_id (chat),
1285                                                           empathy_chat_is_group_chat (chat));
1286         num_messages  = g_list_length (messages);
1287
1288         /* Only keep the 10 last messages */
1289         for (i = 0; num_messages - i > 10; i++) {
1290                 EmpathyMessage *message;
1291
1292                 message = messages->data;
1293                 messages = g_list_remove (messages, message);
1294                 g_object_unref (message);
1295         }
1296
1297         for (l = messages; l; l = l->next) {
1298                 empathy_chat_view_append_message (chat->view, l->data);
1299         }
1300         priv->backlog_messages = messages;
1301
1302         /* Turn back on scrolling */
1303         empathy_chat_view_scroll (chat->view, TRUE);
1304
1305         /* Scroll to the most recent messages, we reference the chat
1306          * for the duration of the scroll func.
1307          */
1308         priv->scroll_idle_id = g_idle_add ((GSourceFunc) chat_scroll_down_idle_func,
1309                                            g_object_ref (chat));
1310 }
1311
1312 /* Scroll down after the back-log has been received. */
1313 static gboolean
1314 chat_scroll_down_idle_func (EmpathyChat *chat)
1315 {
1316         EmpathyChatPriv *priv;
1317
1318         priv = GET_PRIV (chat);
1319
1320         empathy_chat_scroll_down (chat);
1321         g_object_unref (chat);
1322
1323         priv->scroll_idle_id = 0;
1324
1325         return FALSE;
1326 }
1327
1328 gboolean
1329 empathy_chat_get_is_command (const gchar *str)
1330 {
1331         g_return_val_if_fail (str != NULL, FALSE);
1332
1333         if (str[0] != '/') {
1334                 return FALSE;
1335         }
1336
1337         if (g_str_has_prefix (str, "/me")) {
1338                 return TRUE;
1339         }
1340         else if (g_str_has_prefix (str, "/nick")) {
1341                 return TRUE;
1342         }
1343         else if (g_str_has_prefix (str, "/topic")) {
1344                 return TRUE;
1345         }
1346
1347         return FALSE;
1348 }
1349
1350 void
1351 empathy_chat_correct_word (EmpathyChat  *chat,
1352                           GtkTextIter  start,
1353                           GtkTextIter  end,
1354                           const gchar *new_word)
1355 {
1356         GtkTextBuffer *buffer;
1357
1358         g_return_if_fail (chat != NULL);
1359         g_return_if_fail (new_word != NULL);
1360
1361         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1362
1363         gtk_text_buffer_delete (buffer, &start, &end);
1364         gtk_text_buffer_insert (buffer, &start,
1365                                 new_word,
1366                                 -1);
1367 }
1368
1369 const gchar *
1370 empathy_chat_get_name (EmpathyChat *chat)
1371 {
1372         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1373
1374         if (EMPATHY_CHAT_GET_CLASS (chat)->get_name) {
1375                 return EMPATHY_CHAT_GET_CLASS (chat)->get_name (chat);
1376         }
1377
1378         return NULL;
1379 }
1380
1381 gchar *
1382 empathy_chat_get_tooltip (EmpathyChat *chat)
1383 {
1384         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1385
1386         if (EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip) {
1387                 return EMPATHY_CHAT_GET_CLASS (chat)->get_tooltip (chat);
1388         }
1389
1390         return NULL;
1391 }
1392
1393 const gchar *
1394 empathy_chat_get_status_icon_name (EmpathyChat *chat)
1395 {
1396         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1397
1398         if (EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name) {
1399                 return EMPATHY_CHAT_GET_CLASS (chat)->get_status_icon_name (chat);
1400         }
1401
1402         return NULL;
1403 }
1404
1405 GtkWidget *
1406 empathy_chat_get_widget (EmpathyChat *chat)
1407 {
1408         EmpathyChatPriv *priv = GET_PRIV (chat);
1409
1410         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), NULL);
1411
1412         if (!priv->widget && EMPATHY_CHAT_GET_CLASS (chat)->get_widget) {
1413                 priv->widget = EMPATHY_CHAT_GET_CLASS (chat)->get_widget (chat);
1414         }
1415
1416         return priv->widget;
1417 }
1418
1419 gboolean
1420 empathy_chat_is_group_chat (EmpathyChat *chat)
1421 {
1422         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1423
1424         if (EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat) {
1425                 return EMPATHY_CHAT_GET_CLASS (chat)->is_group_chat (chat);
1426         }
1427
1428         return FALSE;
1429 }
1430
1431 gboolean
1432 empathy_chat_is_connected (EmpathyChat *chat)
1433 {
1434         EmpathyChatPriv *priv;
1435
1436         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1437
1438         priv = GET_PRIV (chat);
1439
1440         return (priv->tp_chat != NULL);
1441 }
1442
1443 static const gchar *
1444 chat_get_window_id_for_geometry (EmpathyChat *chat)
1445 {
1446         gboolean separate_windows;
1447
1448         empathy_conf_get_bool (empathy_conf_get (),
1449                                EMPATHY_PREFS_UI_SEPARATE_CHAT_WINDOWS,
1450                                &separate_windows);
1451
1452         if (separate_windows) {
1453                 return empathy_chat_get_id (chat);
1454         } else {
1455                 return "chat-window";
1456         }
1457 }
1458
1459 void
1460 empathy_chat_save_geometry (EmpathyChat *chat,
1461                            gint        x,
1462                            gint        y,
1463                            gint        w,
1464                            gint        h)
1465 {
1466         empathy_geometry_save (chat_get_window_id_for_geometry (chat), x, y, w, h);
1467 }
1468
1469 void
1470 empathy_chat_load_geometry (EmpathyChat *chat,
1471                            gint       *x,
1472                            gint       *y,
1473                            gint       *w,
1474                            gint       *h)
1475 {
1476         empathy_geometry_load (chat_get_window_id_for_geometry (chat), x, y, w, h);
1477 }
1478
1479 static gboolean
1480 chat_block_events_timeout_cb (gpointer data)
1481 {
1482         EmpathyChat     *chat = EMPATHY_CHAT (data);
1483         EmpathyChatPriv *priv = GET_PRIV (chat);
1484
1485         chat->block_events = FALSE;
1486         priv->block_events_timeout_id = 0;
1487
1488         return FALSE;
1489 }
1490
1491 void
1492 empathy_chat_set_tp_chat (EmpathyChat   *chat,
1493                           EmpathyTpChat *tp_chat)
1494 {
1495         EmpathyChatPriv *priv;
1496
1497         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1498         g_return_if_fail (EMPATHY_IS_TP_CHAT (tp_chat));
1499
1500         priv = GET_PRIV (chat);
1501
1502         if (tp_chat == priv->tp_chat) {
1503                 return;
1504         }
1505
1506         /* Block events for some time to avoid having "has come online" or
1507          * "joined" messages. */
1508         chat->block_events = TRUE;
1509         if (priv->block_events_timeout_id != 0) {
1510                 g_source_remove (priv->block_events_timeout_id);
1511         }
1512         priv->block_events_timeout_id =
1513                 g_timeout_add_seconds (1, chat_block_events_timeout_cb, chat);
1514
1515         if (priv->tp_chat) {
1516                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1517                                                       chat_message_received_cb,
1518                                                       chat);
1519                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1520                                                       chat_send_error_cb,
1521                                                       chat);
1522                 g_signal_handlers_disconnect_by_func (priv->tp_chat,
1523                                                       chat_destroy_cb,
1524                                                       chat);
1525                 g_object_unref (priv->tp_chat);
1526         }
1527         if (priv->account) {
1528                 g_object_unref (priv->account);
1529         }
1530
1531         g_free (priv->id);
1532         priv->tp_chat = g_object_ref (tp_chat);
1533         priv->id = g_strdup (empathy_tp_chat_get_id (tp_chat));
1534         priv->account = g_object_ref (empathy_tp_chat_get_account (tp_chat));
1535         empathy_tp_chat_set_acknowledge (tp_chat, TRUE);
1536
1537         if (priv->first_tp_chat) {
1538                 chat_add_logs (chat);
1539                 priv->first_tp_chat = FALSE;
1540         }
1541
1542         g_signal_connect (tp_chat, "message-received",
1543                           G_CALLBACK (chat_message_received_cb),
1544                           chat);
1545         g_signal_connect (tp_chat, "send-error",
1546                           G_CALLBACK (chat_send_error_cb),
1547                           chat);
1548         g_signal_connect (tp_chat, "chat-state-changed",
1549                           G_CALLBACK (chat_state_changed_cb),
1550                           chat);
1551         g_signal_connect (tp_chat, "destroy",
1552                           G_CALLBACK (chat_destroy_cb),
1553                           chat);
1554
1555         if (!priv->sensitive) {
1556                 gtk_widget_set_sensitive (chat->input_text_view, TRUE);
1557                 empathy_chat_view_append_event (chat->view, _("Connected"));
1558                 priv->sensitive = TRUE;
1559         }
1560
1561         if (EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat) {
1562                 EMPATHY_CHAT_GET_CLASS (chat)->set_tp_chat (chat, tp_chat);
1563         }
1564
1565         g_object_notify (G_OBJECT (chat), "tp-chat");
1566 }
1567
1568 const gchar *
1569 empathy_chat_get_id (EmpathyChat *chat)
1570 {
1571         EmpathyChatPriv *priv;
1572
1573         priv = GET_PRIV (chat);
1574
1575         return priv->id;
1576 }
1577
1578 McAccount *
1579 empathy_chat_get_account (EmpathyChat *chat)
1580 {
1581         EmpathyChatPriv *priv = GET_PRIV (chat);
1582
1583         return priv->account;
1584 }
1585
1586 void
1587 empathy_chat_clear (EmpathyChat *chat)
1588 {
1589         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1590
1591         empathy_chat_view_clear (chat->view);
1592 }
1593
1594 void
1595 empathy_chat_scroll_down (EmpathyChat *chat)
1596 {
1597         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1598
1599         empathy_chat_view_scroll_down (chat->view);
1600 }
1601
1602 void
1603 empathy_chat_cut (EmpathyChat *chat)
1604 {
1605         GtkTextBuffer *buffer;
1606
1607         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1608
1609         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1610         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1611                 GtkClipboard *clipboard;
1612
1613                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1614
1615                 gtk_text_buffer_cut_clipboard (buffer, clipboard, TRUE);
1616         }
1617 }
1618
1619 void
1620 empathy_chat_copy (EmpathyChat *chat)
1621 {
1622         GtkTextBuffer *buffer;
1623
1624         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1625
1626         if (empathy_chat_view_get_selection_bounds (chat->view, NULL, NULL)) {
1627                 empathy_chat_view_copy_clipboard (chat->view);
1628                 return;
1629         }
1630
1631         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1632         if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1633                 GtkClipboard *clipboard;
1634
1635                 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1636
1637                 gtk_text_buffer_copy_clipboard (buffer, clipboard);
1638         }
1639 }
1640
1641 void
1642 empathy_chat_paste (EmpathyChat *chat)
1643 {
1644         GtkTextBuffer *buffer;
1645         GtkClipboard  *clipboard;
1646
1647         g_return_if_fail (EMPATHY_IS_CHAT (chat));
1648
1649         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (chat->input_text_view));
1650         clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1651
1652         gtk_text_buffer_paste_clipboard (buffer, clipboard, NULL, TRUE);
1653 }
1654
1655 gboolean
1656 empathy_chat_should_play_sound (EmpathyChat *chat)
1657 {
1658         EmpathyChatPriv *priv = GET_PRIV (chat);
1659         GtkWindow       *window;
1660         gboolean         has_focus = FALSE;
1661
1662         g_return_val_if_fail (EMPATHY_IS_CHAT (chat), FALSE);
1663
1664         window = empathy_get_toplevel_window (priv->widget);
1665         if (window) {
1666                 g_object_get (window, "has-toplevel-focus", &has_focus, NULL);
1667         }
1668
1669         return !has_focus;
1670 }
1671
1672 gboolean
1673 empathy_chat_should_highlight_nick (EmpathyMessage *message)
1674 {
1675         EmpathyContact *contact;
1676         const gchar   *msg, *to;
1677         gchar         *cf_msg, *cf_to;
1678         gchar         *ch;
1679         gboolean       ret_val;
1680
1681         g_return_val_if_fail (EMPATHY_IS_MESSAGE (message), FALSE);
1682
1683         empathy_debug (DEBUG_DOMAIN, "Highlighting nickname");
1684
1685         ret_val = FALSE;
1686
1687         msg = empathy_message_get_body (message);
1688         if (!msg) {
1689                 return FALSE;
1690         }
1691
1692         contact = empathy_message_get_receiver (message);
1693         if (!contact || !empathy_contact_is_user (contact)) {
1694                 return FALSE;
1695         }
1696
1697         to = empathy_contact_get_name (contact);
1698         if (!to) {
1699                 return FALSE;
1700         }
1701
1702         cf_msg = g_utf8_casefold (msg, -1);
1703         cf_to = g_utf8_casefold (to, -1);
1704
1705         ch = strstr (cf_msg, cf_to);
1706         if (ch == NULL) {
1707                 goto finished;
1708         }
1709
1710         if (ch != cf_msg) {
1711                 /* Not first in the message */
1712                 if ((*(ch - 1) != ' ') &&
1713                     (*(ch - 1) != ',') &&
1714                     (*(ch - 1) != '.')) {
1715                         goto finished;
1716                 }
1717         }
1718
1719         ch = ch + strlen (cf_to);
1720         if (ch >= cf_msg + strlen (cf_msg)) {
1721                 ret_val = TRUE;
1722                 goto finished;
1723         }
1724
1725         if ((*ch == ' ') ||
1726             (*ch == ',') ||
1727             (*ch == '.') ||
1728             (*ch == ':')) {
1729                 ret_val = TRUE;
1730                 goto finished;
1731         }
1732
1733 finished:
1734         g_free (cf_msg);
1735         g_free (cf_to);
1736
1737         return ret_val;
1738 }
1739