]> git.0d.be Git - empathy.git/blobdiff - libempathy-gtk/empathy-chat-view.c
add myself to AUTHORS
[empathy.git] / libempathy-gtk / empathy-chat-view.c
index fda268676d6701c2279b5a3dc1b352203601fcdd..ed5740a8e2b38087167c2ad64bdffb437df456dc 100644 (file)
@@ -1,6 +1,6 @@
 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
 /*
- * Copyright (C) 2002-2007 Imendio AB
+ * Copyright (C) 2008 Collabora Ltd.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  *
  * You should have received a copy of the GNU General Public
  * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- * 
- * Authors: Mikael Hallendal <micke@imendio.com>
- *          Richard Hult <richard@imendio.com>
- *          Martyn Russell <martyn@imendio.com>
- */
-
-#include "config.h"
-
-#include <sys/types.h>
-#include <string.h>
-#include <time.h>
-
-#include <glib/gi18n.h>
-#include <gtk/gtkbutton.h>
-#include <gtk/gtkimage.h>
-#include <gtk/gtkmenu.h>
-#include <gtk/gtkmenuitem.h>
-#include <gtk/gtkimagemenuitem.h>
-#include <gtk/gtkstock.h>
-#include <gtk/gtkscrolledwindow.h>
-#include <gtk/gtksizegroup.h>
-#include <glade/glade.h>
-
-#include <libmissioncontrol/mc-account.h>
-
-#include <libempathy/empathy-utils.h>
-#include <libempathy/empathy-debug.h>
-#include <libempathy/empathy-conf.h>
-
-#include "empathy-chat-view.h"
-#include "empathy-chat.h"
-#include "empathy-preferences.h"
-#include "empathy-theme-manager.h"
-#include "empathy-ui-utils.h"
-
-#define DEBUG_DOMAIN "ChatView"
-
-/* Number of seconds between timestamps when using normal mode, 5 minutes. */
-#define TIMESTAMP_INTERVAL 300
-
-#define MAX_LINES 800
-#define MAX_SCROLL_TIME 0.4 /* seconds */
-#define SCROLL_DELAY 33     /* milliseconds */
-
-#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv))
-
-typedef enum {
-       BLOCK_TYPE_NONE,
-       BLOCK_TYPE_SELF,
-       BLOCK_TYPE_OTHER,
-       BLOCK_TYPE_EVENT,
-       BLOCK_TYPE_TIME,
-       BLOCK_TYPE_INVITE
-} BlockType;
-
-struct _EmpathyChatViewPriv {
-       GtkTextBuffer *buffer;
-
-       gboolean       irc_style;
-       time_t         last_timestamp;
-       BlockType      last_block_type;
-
-       gboolean       allow_scrolling;
-       guint          scroll_timeout;
-       GTimer        *scroll_time;
-       gboolean       is_group_chat;
-
-       GtkTextMark   *find_mark_previous;
-       GtkTextMark   *find_mark_next;
-       gboolean       find_wrapped;
-       gboolean       find_last_direction;
-
-       /* This is for the group chat so we know if the "other" last contact
-        * changed, so we know whether to insert a header or not.
-        */
-       EmpathyContact *last_contact;
-
-       guint          notify_system_fonts_id;
-       guint          notify_show_avatars_id;
-};
-
-typedef struct {
-       EmpathySmiley  smiley;
-       const gchar  *pattern;
-} EmpathySmileyPattern;
-
-static const EmpathySmileyPattern smileys[] = {
-       /* Forward smileys. */
-       { EMPATHY_SMILEY_NORMAL,       ":)"  },
-       { EMPATHY_SMILEY_WINK,         ";)"  },
-       { EMPATHY_SMILEY_WINK,         ";-)" },
-       { EMPATHY_SMILEY_BIGEYE,       "=)"  },
-       { EMPATHY_SMILEY_NOSE,         ":-)" },
-       { EMPATHY_SMILEY_CRY,          ":'(" },
-       { EMPATHY_SMILEY_SAD,          ":("  },
-       { EMPATHY_SMILEY_SAD,          ":-(" },
-       { EMPATHY_SMILEY_SCEPTICAL,    ":/"  },
-       { EMPATHY_SMILEY_SCEPTICAL,    ":\\" },
-       { EMPATHY_SMILEY_BIGSMILE,     ":D"  },
-       { EMPATHY_SMILEY_BIGSMILE,     ":-D" },
-       { EMPATHY_SMILEY_INDIFFERENT,  ":|"  },
-       { EMPATHY_SMILEY_TOUNGE,       ":p"  },
-       { EMPATHY_SMILEY_TOUNGE,       ":-p" },
-       { EMPATHY_SMILEY_TOUNGE,       ":P"  },
-       { EMPATHY_SMILEY_TOUNGE,       ":-P" },
-       { EMPATHY_SMILEY_TOUNGE,       ";p"  },
-       { EMPATHY_SMILEY_TOUNGE,       ";-p" },
-       { EMPATHY_SMILEY_TOUNGE,       ";P"  },
-       { EMPATHY_SMILEY_TOUNGE,       ";-P" },
-       { EMPATHY_SMILEY_SHOCKED,      ":o"  },
-       { EMPATHY_SMILEY_SHOCKED,      ":-o" },
-       { EMPATHY_SMILEY_SHOCKED,      ":O"  },
-       { EMPATHY_SMILEY_SHOCKED,      ":-O" },
-       { EMPATHY_SMILEY_COOL,         "8)"  },
-       { EMPATHY_SMILEY_COOL,         "B)"  },
-       { EMPATHY_SMILEY_SORRY,        "*|"  },
-       { EMPATHY_SMILEY_KISS,         ":*"  },
-       { EMPATHY_SMILEY_SHUTUP,       ":#"  },
-       { EMPATHY_SMILEY_SHUTUP,       ":-#" },
-       { EMPATHY_SMILEY_YAWN,         "|O"  },
-       { EMPATHY_SMILEY_CONFUSED,     ":S"  },
-       { EMPATHY_SMILEY_CONFUSED,     ":s"  },
-       { EMPATHY_SMILEY_ANGEL,        "<)"  },
-       { EMPATHY_SMILEY_OOOH,         ":x"  },
-       { EMPATHY_SMILEY_LOOKAWAY,     "*)"  },
-       { EMPATHY_SMILEY_LOOKAWAY,     "*-)" },
-       { EMPATHY_SMILEY_BLUSH,        "*S"  },
-       { EMPATHY_SMILEY_BLUSH,        "*s"  },
-       { EMPATHY_SMILEY_BLUSH,        "*$"  },
-       { EMPATHY_SMILEY_COOLBIGSMILE, "8D"  },
-       { EMPATHY_SMILEY_ANGRY,        ":@"  },
-       { EMPATHY_SMILEY_BOSS,         "@)"  },
-       { EMPATHY_SMILEY_MONKEY,       "#)"  },
-       { EMPATHY_SMILEY_SILLY,        "O)"  },
-       { EMPATHY_SMILEY_SICK,         "+o(" },
-
-       /* Backward smileys. */
-       { EMPATHY_SMILEY_NORMAL,       "(:"  },
-       { EMPATHY_SMILEY_WINK,         "(;"  },
-       { EMPATHY_SMILEY_WINK,         "(-;" },
-       { EMPATHY_SMILEY_BIGEYE,       "(="  },
-       { EMPATHY_SMILEY_NOSE,         "(-:" },
-       { EMPATHY_SMILEY_CRY,          ")':" },
-       { EMPATHY_SMILEY_SAD,          "):"  },
-       { EMPATHY_SMILEY_SAD,          ")-:" },
-       { EMPATHY_SMILEY_SCEPTICAL,    "/:"  },
-       { EMPATHY_SMILEY_SCEPTICAL,    "//:" },
-       { EMPATHY_SMILEY_INDIFFERENT,  "|:"  },
-       { EMPATHY_SMILEY_TOUNGE,       "d:"  },
-       { EMPATHY_SMILEY_TOUNGE,       "d-:" },
-       { EMPATHY_SMILEY_TOUNGE,       "d;"  },
-       { EMPATHY_SMILEY_TOUNGE,       "d-;" },
-       { EMPATHY_SMILEY_SHOCKED,      "o:"  },
-       { EMPATHY_SMILEY_SHOCKED,      "O:"  },
-       { EMPATHY_SMILEY_COOL,         "(8"  },
-       { EMPATHY_SMILEY_COOL,         "(B"  },
-       { EMPATHY_SMILEY_SORRY,        "|*"  },
-       { EMPATHY_SMILEY_KISS,         "*:"  },
-       { EMPATHY_SMILEY_SHUTUP,       "#:"  },
-       { EMPATHY_SMILEY_SHUTUP,       "#-:" },
-       { EMPATHY_SMILEY_YAWN,         "O|"  },
-       { EMPATHY_SMILEY_CONFUSED,     "S:"  },
-       { EMPATHY_SMILEY_CONFUSED,     "s:"  },
-       { EMPATHY_SMILEY_ANGEL,        "(>"  },
-       { EMPATHY_SMILEY_OOOH,         "x:"  },
-       { EMPATHY_SMILEY_LOOKAWAY,     "(*"  },
-       { EMPATHY_SMILEY_LOOKAWAY,     "(-*" },
-       { EMPATHY_SMILEY_BLUSH,        "S*"  },
-       { EMPATHY_SMILEY_BLUSH,        "s*"  },
-       { EMPATHY_SMILEY_BLUSH,        "$*"  },
-       { EMPATHY_SMILEY_ANGRY,        "@:"  },
-       { EMPATHY_SMILEY_BOSS,         "(@"  },
-       { EMPATHY_SMILEY_MONKEY,       "#)"  },
-       { EMPATHY_SMILEY_SILLY,        "(O"  },
-       { EMPATHY_SMILEY_SICK,         ")o+" }
-};
-
-static void     empathy_chat_view_class_init          (EmpathyChatViewClass      *klass);
-static void     empathy_chat_view_init                (EmpathyChatView           *view);
-static void     chat_view_finalize                   (GObject                  *object);
-static gboolean chat_view_drag_motion                (GtkWidget                *widget,
-                                                     GdkDragContext           *context,
-                                                     gint                      x,
-                                                     gint                      y,
-                                                     guint                     time);
-static void     chat_view_size_allocate              (GtkWidget                *widget,
-                                                     GtkAllocation            *alloc);
-static void     chat_view_setup_tags                 (EmpathyChatView           *view);
-static void     chat_view_system_font_update         (EmpathyChatView           *view);
-static void     chat_view_notify_system_font_cb      (EmpathyConf               *conf,
-                                                     const gchar              *key,
-                                                     gpointer                  user_data);
-static void     chat_view_notify_show_avatars_cb     (EmpathyConf               *conf,
-                                                     const gchar              *key,
-                                                     gpointer                  user_data);
-static void     chat_view_populate_popup             (EmpathyChatView           *view,
-                                                     GtkMenu                  *menu,
-                                                     gpointer                  user_data);
-static gboolean chat_view_event_cb                   (EmpathyChatView           *view,
-                                                     GdkEventMotion           *event,
-                                                     GtkTextTag               *tag);
-static gboolean chat_view_url_event_cb               (GtkTextTag               *tag,
-                                                     GObject                  *object,
-                                                     GdkEvent                 *event,
-                                                     GtkTextIter              *iter,
-                                                     GtkTextBuffer            *buffer);
-static void     chat_view_open_address_cb            (GtkMenuItem              *menuitem,
-                                                     const gchar              *url);
-static void     chat_view_copy_address_cb            (GtkMenuItem              *menuitem,
-                                                     const gchar              *url);
-static void     chat_view_clear_view_cb              (GtkMenuItem              *menuitem,
-                                                     EmpathyChatView           *view);
-static void     chat_view_insert_text_with_emoticons (GtkTextBuffer            *buf,
-                                                     GtkTextIter              *iter,
-                                                     const gchar              *str);
-static gboolean chat_view_is_scrolled_down           (EmpathyChatView           *view);
-static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
-                                                     EmpathyChatView           *view);
-static void     chat_view_maybe_append_date_and_time (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static void     chat_view_append_spacing             (EmpathyChatView           *view);
-static void     chat_view_append_text                (EmpathyChatView           *view,
-                                                     const gchar              *body,
-                                                     const gchar              *tag);
-static void     chat_view_maybe_append_fancy_header  (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static void     chat_view_append_irc_action          (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static void     chat_view_append_fancy_action        (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static void     chat_view_append_irc_message         (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static void     chat_view_append_fancy_message       (EmpathyChatView           *view,
-                                                     EmpathyMessage            *msg);
-static GdkPixbuf *chat_view_pad_to_size              (GdkPixbuf                *pixbuf,
-                                                     gint                      width,
-                                                     gint                      height,
-                                                     gint                      extra_padding_right);
-
-G_DEFINE_TYPE (EmpathyChatView, empathy_chat_view, GTK_TYPE_TEXT_VIEW);
-
-static void
-empathy_chat_view_class_init (EmpathyChatViewClass *klass)
-{
-       GObjectClass   *object_class = G_OBJECT_CLASS (klass);
-       GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-
-       object_class->finalize = chat_view_finalize;
-       widget_class->size_allocate = chat_view_size_allocate;
-       widget_class->drag_motion = chat_view_drag_motion; 
-
-       g_type_class_add_private (object_class, sizeof (EmpathyChatViewPriv));
-}
-
-static void
-empathy_chat_view_init (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-       gboolean            show_avatars;
-
-       priv = GET_PRIV (view);
-
-       priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-
-       priv->last_block_type = BLOCK_TYPE_NONE;
-       priv->last_timestamp = 0;
-
-       priv->allow_scrolling = TRUE;
-
-       priv->is_group_chat = FALSE;
-
-       g_object_set (view,
-                     "wrap-mode", GTK_WRAP_WORD_CHAR,
-                     "editable", FALSE,
-                     "cursor-visible", FALSE,
-                     NULL);
-
-       priv->notify_system_fonts_id =
-               empathy_conf_notify_add (empathy_conf_get (),
-                                        "/desktop/gnome/interface/document_font_name",
-                                        chat_view_notify_system_font_cb,
-                                        view);
-       chat_view_system_font_update (view);
-
-       priv->notify_show_avatars_id =
-               empathy_conf_notify_add (empathy_conf_get (),
-                                        EMPATHY_PREFS_UI_SHOW_AVATARS,
-                                        chat_view_notify_show_avatars_cb,
-                                        view);
-
-       chat_view_setup_tags (view);
-
-       empathy_theme_manager_apply_saved (empathy_theme_manager_get (), view);
-
-       show_avatars = FALSE;
-       empathy_conf_get_bool (empathy_conf_get (),
-                              EMPATHY_PREFS_UI_SHOW_AVATARS,
-                              &show_avatars);
-
-       empathy_theme_manager_update_show_avatars (empathy_theme_manager_get (),
-                                                 view, show_avatars);
-
-       g_signal_connect (view,
-                         "populate-popup",
-                         G_CALLBACK (chat_view_populate_popup),
-                         NULL);
-
-       g_signal_connect_object (empathy_theme_manager_get (),
-                                "theme-changed",
-                                G_CALLBACK (chat_view_theme_changed_cb),
-                                view,
-                                0);
-}
-
-static void
-chat_view_finalize (GObject *object)
-{
-       EmpathyChatView     *view;
-       EmpathyChatViewPriv *priv;
-
-       view = EMPATHY_CHAT_VIEW (object);
-       priv = GET_PRIV (view);
-
-       empathy_debug (DEBUG_DOMAIN, "finalize: %p", object);
-
-       empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
-       empathy_conf_notify_remove (empathy_conf_get (), priv->notify_show_avatars_id);
-
-       if (priv->last_contact) {
-               g_object_unref (priv->last_contact);
-       }
-       if (priv->scroll_time) {
-               g_timer_destroy (priv->scroll_time);
-       }
-       if (priv->scroll_timeout) {
-               g_source_remove (priv->scroll_timeout);
-       }
-
-       G_OBJECT_CLASS (empathy_chat_view_parent_class)->finalize (object);
-}
-
-static gboolean
-chat_view_drag_motion (GtkWidget        *widget,
-                      GdkDragContext   *context,
-                      gint              x,
-                      gint              y,
-                      guint             time)
-{
-       /* Don't handle drag motion, since we don't want the view to scroll as
-        * the result of dragging something across it.
-        */
-
-       return FALSE;
-}
-
-static void
-chat_view_size_allocate (GtkWidget     *widget,
-                        GtkAllocation *alloc)
-{
-       gboolean down;
-
-       down = chat_view_is_scrolled_down (EMPATHY_CHAT_VIEW (widget));
-
-       GTK_WIDGET_CLASS (empathy_chat_view_parent_class)->size_allocate (widget, alloc);
-
-       if (down) {
-               GtkAdjustment *adj;
-
-               adj = GTK_TEXT_VIEW (widget)->vadjustment;
-               gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
-       }
-}
-
-static void
-chat_view_setup_tags (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-       GtkTextTag         *tag;
-
-       priv = GET_PRIV (view);
-
-       gtk_text_buffer_create_tag (priv->buffer,
-                                   "cut",
-                                   NULL);
-
-       /* FIXME: Move to the theme and come up with something that looks a bit
-        * nicer.
-        */
-       gtk_text_buffer_create_tag (priv->buffer,
-                                   "highlight",
-                                   "background", "yellow",
-                                   NULL);
-
-       tag = gtk_text_buffer_create_tag (priv->buffer,
-                                         "link",
-                                         NULL);
-
-       g_signal_connect (tag,
-                         "event",
-                         G_CALLBACK (chat_view_url_event_cb),
-                         priv->buffer);
-
-       g_signal_connect (view,
-                         "motion-notify-event",
-                         G_CALLBACK (chat_view_event_cb),
-                         tag);
-}
-
-static void
-chat_view_system_font_update (EmpathyChatView *view)
-{
-       PangoFontDescription *font_description = NULL;
-       gchar                *font_name;
-
-       if (empathy_conf_get_string (empathy_conf_get (),
-                                    "/desktop/gnome/interface/document_font_name",
-                                    &font_name) && font_name) {
-               font_description = pango_font_description_from_string (font_name);
-               g_free (font_name);
-       } else {
-               font_description = NULL;
-       }
-
-       gtk_widget_modify_font (GTK_WIDGET (view), font_description);
-
-       if (font_description) {
-               pango_font_description_free (font_description);
-       }
-}
-
-static void
-chat_view_notify_system_font_cb (EmpathyConf  *conf,
-                                const gchar *key,
-                                gpointer     user_data)
-{
-       EmpathyChatView *view;
-       gboolean        show_avatars = FALSE;
-
-       view = user_data;
-
-       chat_view_system_font_update (view);
-
-       /* Ugly, again, to adjust the vertical position of the nick... Will fix
-        * this when reworking the theme manager so that view register
-        * themselves with it instead of the other way around.
-        */
-       empathy_conf_get_bool (conf,
-                              EMPATHY_PREFS_UI_SHOW_AVATARS,
-                              &show_avatars);
-
-       empathy_theme_manager_update_show_avatars (empathy_theme_manager_get (),
-                                                 view, show_avatars);
-}
-
-static void
-chat_view_notify_show_avatars_cb (EmpathyConf  *conf,
-                                 const gchar *key,
-                                 gpointer     user_data)
-{
-       EmpathyChatView     *view;
-       EmpathyChatViewPriv *priv;
-       gboolean            show_avatars = FALSE;
-
-       view = user_data;
-       priv = GET_PRIV (view);
-
-       empathy_conf_get_bool (conf, key, &show_avatars);
-
-       empathy_theme_manager_update_show_avatars (empathy_theme_manager_get (),
-                                                 view, show_avatars);
-}
-
-static void
-chat_view_populate_popup (EmpathyChatView *view,
-                         GtkMenu        *menu,
-                         gpointer        user_data)
-{
-       EmpathyChatViewPriv *priv;
-       GtkTextTagTable    *table;
-       GtkTextTag         *tag;
-       gint                x, y;
-       GtkTextIter         iter, start, end;
-       GtkWidget          *item;
-       gchar              *str = NULL;
-
-       priv = GET_PRIV (view);
-
-       /* Clear menu item */
-       if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
-               item = gtk_menu_item_new ();
-               gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
-               gtk_widget_show (item);
-
-               item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
-               gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
-               gtk_widget_show (item);
-
-               g_signal_connect (item,
-                                 "activate",
-                                 G_CALLBACK (chat_view_clear_view_cb),
-                                 view);
-       }
-
-       /* Link context menu items */
-       table = gtk_text_buffer_get_tag_table (priv->buffer);
-       tag = gtk_text_tag_table_lookup (table, "link");
-
-       gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
-
-       gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
-                                              GTK_TEXT_WINDOW_WIDGET,
-                                              x, y,
-                                              &x, &y);
-
-       gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
-
-       start = end = iter;
-
-       if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
-           gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
-               str = gtk_text_buffer_get_text (priv->buffer,
-                                               &start, &end, FALSE);
-       }
-
-       if (G_STR_EMPTY (str)) {
-               g_free (str);
-               return;
-       }
-
-       /* NOTE: Set data just to get the string freed when not needed. */
-       g_object_set_data_full (G_OBJECT (menu),
-                               "url", str,
-                               (GDestroyNotify) g_free);
-
-       item = gtk_menu_item_new ();
-       gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
-       gtk_widget_show (item);
-
-       item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
-       g_signal_connect (item,
-                         "activate",
-                         G_CALLBACK (chat_view_copy_address_cb),
-                         str);
-       gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
-       gtk_widget_show (item);
-
-       item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
-       g_signal_connect (item,
-                         "activate",
-                         G_CALLBACK (chat_view_open_address_cb),
-                         str);
-       gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
-       gtk_widget_show (item);
-}
-
-static gboolean
-chat_view_event_cb (EmpathyChatView *view,
-                   GdkEventMotion *event,
-                   GtkTextTag     *tag)
-{
-       static GdkCursor  *hand = NULL;
-       static GdkCursor  *beam = NULL;
-       GtkTextWindowType  type;
-       GtkTextIter        iter;
-       GdkWindow         *win;
-       gint               x, y, buf_x, buf_y;
-
-       type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
-                                             event->window);
-
-       if (type != GTK_TEXT_WINDOW_TEXT) {
-               return FALSE;
-       }
-
-       /* Get where the pointer really is. */
-       win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
-       if (!win) {
-               return FALSE;
-       }
-
-       gdk_window_get_pointer (win, &x, &y, NULL);
-
-       /* Get the iter where the cursor is at */
-       gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
-                                              x, y,
-                                              &buf_x, &buf_y);
-
-       gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
-                                           &iter,
-                                           buf_x, buf_y);
-
-       if (gtk_text_iter_has_tag (&iter, tag)) {
-               if (!hand) {
-                       hand = gdk_cursor_new (GDK_HAND2);
-                       beam = gdk_cursor_new (GDK_XTERM);
-               }
-               gdk_window_set_cursor (win, hand);
-       } else {
-               if (!beam) {
-                       beam = gdk_cursor_new (GDK_XTERM);
-               }
-               gdk_window_set_cursor (win, beam);
-       }
-
-       return FALSE;
-}
-
-static gboolean
-chat_view_url_event_cb (GtkTextTag    *tag,
-                       GObject       *object,
-                       GdkEvent      *event,
-                       GtkTextIter   *iter,
-                       GtkTextBuffer *buffer)
-{
-       GtkTextIter  start, end;
-       gchar       *str;
-
-       /* If the link is being selected, don't do anything. */
-       gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
-       if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
-               return FALSE;
-       }
-
-       if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
-               start = end = *iter;
-
-               if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
-                   gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
-                       str = gtk_text_buffer_get_text (buffer,
-                                                       &start,
-                                                       &end,
-                                                       FALSE);
-
-                       empathy_url_show (str);
-                       g_free (str);
-               }
-       }
-
-       return FALSE;
-}
-
-static void
-chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
-{
-       empathy_url_show (url);
-}
-
-static void
-chat_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
-{
-       GtkClipboard *clipboard;
-
-       clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
-       gtk_clipboard_set_text (clipboard, url, -1);
-
-       clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
-       gtk_clipboard_set_text (clipboard, url, -1);
-}
-
-static void
-chat_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatView *view)
-{
-       empathy_chat_view_clear (view);
-}
-
-static void
-chat_view_insert_text_with_emoticons (GtkTextBuffer *buf,
-                                     GtkTextIter   *iter,
-                                     const gchar   *str)
-{
-       const gchar *p;
-       gunichar     c, prev_c;
-       gint         i;
-       gint         match;
-       gint         submatch;
-       gboolean     use_smileys = FALSE;
-
-       empathy_conf_get_bool (empathy_conf_get (),
-                              EMPATHY_PREFS_CHAT_SHOW_SMILEYS,
-                              &use_smileys);
-
-       if (!use_smileys) {
-               gtk_text_buffer_insert (buf, iter, str, -1);
-               return;
-       }
-
-       while (*str) {
-               gint         smileys_index[G_N_ELEMENTS (smileys)];
-               GdkPixbuf   *pixbuf;
-               gint         len;
-               const gchar *start;
-
-               memset (smileys_index, 0, sizeof (smileys_index));
-
-               match = -1;
-               submatch = -1;
-               p = str;
-               prev_c = 0;
-
-               while (*p) {
-                       c = g_utf8_get_char (p);
-
-                       if (match != -1 && g_unichar_isspace (c)) {
-                               break;
-                       } else {
-                               match = -1;
-                       }
-
-                       if (submatch != -1 || prev_c == 0 || g_unichar_isspace (prev_c)) {
-                               submatch = -1;
-
-                               for (i = 0; i < G_N_ELEMENTS (smileys); i++) {
-                                       /* Only try to match if we already have
-                                        * a beginning match for the pattern, or
-                                        * if it's the first character in the
-                                        * pattern, if it's not in the middle of
-                                        * a word.
-                                        */
-                                       if (((smileys_index[i] == 0 && (prev_c == 0 || g_unichar_isspace (prev_c))) ||
-                                            smileys_index[i] > 0) &&
-                                           smileys[i].pattern[smileys_index[i]] == c) {
-                                               submatch = i;
-
-                                               smileys_index[i]++;
-                                               if (!smileys[i].pattern[smileys_index[i]]) {
-                                                       match = i;
-                                               }
-                                       } else {
-                                               smileys_index[i] = 0;
-                                       }
-                               }
-                       }
-
-                       prev_c = c;
-                       p = g_utf8_next_char (p);
-               }
-
-               if (match == -1) {
-                       gtk_text_buffer_insert (buf, iter, str, -1);
-                       return;
-               }
-
-               start = p - strlen (smileys[match].pattern);
-
-               if (start > str) {
-                       len = start - str;
-                       gtk_text_buffer_insert (buf, iter, str, len);
-               }
-
-               pixbuf = empathy_chat_view_get_smiley_image (smileys[match].smiley);
-               gtk_text_buffer_insert_pixbuf (buf, iter, pixbuf);
-
-               gtk_text_buffer_insert (buf, iter, " ", 1);
-
-               str = g_utf8_find_next_char (p, NULL);
-       }
-}
-
-static gboolean
-chat_view_is_scrolled_down (EmpathyChatView *view)
-{
-       GtkWidget *sw;
-
-       sw = gtk_widget_get_parent (GTK_WIDGET (view));
-       if (GTK_IS_SCROLLED_WINDOW (sw)) {
-               GtkAdjustment *vadj;
-
-               vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
-
-               if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
-                       return FALSE;
-               }
-       }
-
-       return TRUE;
-}
-
-static void
-chat_view_maybe_trim_buffer (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-       GtkTextIter         top, bottom;
-       gint                line;
-       gint                remove;
-       GtkTextTagTable    *table;
-       GtkTextTag         *tag;
-
-       priv = GET_PRIV (view);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
-       line = gtk_text_iter_get_line (&bottom);
-       if (line < MAX_LINES) {
-               return;
-       }
-
-       remove = line - MAX_LINES;
-       gtk_text_buffer_get_start_iter (priv->buffer, &top);
-
-       bottom = top;
-       if (!gtk_text_iter_forward_lines (&bottom, remove)) {
-               return;
-       }
-
-       /* Track backwords to a place where we can safely cut, we don't do it in
-        * the middle of a tag.
-        */
-       table = gtk_text_buffer_get_tag_table (priv->buffer);
-       tag = gtk_text_tag_table_lookup (table, "cut");
-       if (!tag) {
-               return;
-       }
-
-       if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
-               return;
-       }
-
-       if (!gtk_text_iter_equal (&top, &bottom)) {
-               gtk_text_buffer_delete (priv->buffer, &top, &bottom);
-       }
-}
-
-static void
-chat_view_maybe_append_date_and_time (EmpathyChatView *view,
-                                     EmpathyMessage  *msg)
-{
-       EmpathyChatViewPriv *priv;
-       const gchar        *tag;
-       time_t              timestamp;
-       GDate              *date, *last_date;
-       GtkTextIter         iter;
-       gboolean            append_date, append_time;
-       GString            *str;
-
-       priv = GET_PRIV (view);
-
-       if (priv->irc_style) {
-               tag = "irc-time";
-       } else {
-               tag = "fancy-time";
-       }
-
-       if (priv->last_block_type == BLOCK_TYPE_TIME) {
-               return;
-       }
-
-       str = g_string_new (NULL);
-
-       timestamp = 0;
-       if (msg) {
-               timestamp = empathy_message_get_timestamp (msg);
-       }
-
-       if (timestamp <= 0) {
-               timestamp = empathy_time_get_current ();
-       }
-
-       date = g_date_new ();
-       g_date_set_time (date, timestamp);
-
-       last_date = g_date_new ();
-       g_date_set_time (last_date, priv->last_timestamp);
-
-       append_date = FALSE;
-       append_time = FALSE;
-
-       if (g_date_compare (date, last_date) > 0) {
-               append_date = TRUE;
-               append_time = TRUE;
-       }
-
-       if (priv->last_timestamp + TIMESTAMP_INTERVAL < timestamp) {
-               append_time = TRUE;
-       }
-
-       if (append_time || append_date) {
-               chat_view_append_spacing (view);
-
-               g_string_append (str, "- ");
-       }
-
-       if (append_date) {
-               gchar buf[256];
-
-               g_date_strftime (buf, 256, _("%A %d %B %Y"), date);
-               g_string_append (str, buf);
-
-               if (append_time) {
-                       g_string_append (str, ", ");
-               }
-       }
-
-       g_date_free (date);
-       g_date_free (last_date);
-
-       if (append_time) {
-               gchar *tmp;
-
-               tmp = empathy_time_to_string_local (timestamp, EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
-               g_string_append (str, tmp);
-               g_free (tmp);
-       }
-
-       if (append_time || append_date) {
-               g_string_append (str, " -\n");
-
-               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-               gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                         &iter,
-                                                         str->str, -1,
-                                                         tag,
-                                                         NULL);
-
-               priv->last_block_type = BLOCK_TYPE_TIME;
-               priv->last_timestamp = timestamp;
-       }
-
-       g_string_free (str, TRUE);
-}
-
-static void
-chat_view_append_spacing (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-       const gchar        *tag;
-       GtkTextIter         iter;
-
-       priv = GET_PRIV (view);
-
-       if (priv->irc_style) {
-               tag = "irc-spacing";
-       } else {
-               tag = "fancy-spacing";
-       }
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 "\n",
-                                                 -1,
-                                                 "cut",
-                                                 tag,
-                                                 NULL);
-}
-
-static void
-chat_view_append_text (EmpathyChatView *view,
-                      const gchar    *body,
-                      const gchar    *tag)
-{
-       EmpathyChatViewPriv *priv;
-       GtkTextIter         start_iter, end_iter;
-       GtkTextMark        *mark;
-       GtkTextIter         iter;
-       gint                num_matches, i;
-       GArray             *start, *end;
-       const gchar        *link_tag;
-
-       priv = GET_PRIV (view);
-
-       if (priv->irc_style) {
-               link_tag = "irc-link";
-       } else {
-               link_tag = "fancy-link";
-       }
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &start_iter);
-       mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start_iter, TRUE);
-
-       start = g_array_new (FALSE, FALSE, sizeof (gint));
-       end = g_array_new (FALSE, FALSE, sizeof (gint));
-
-       num_matches = empathy_regex_match (EMPATHY_REGEX_ALL, body, start, end);
-
-       if (num_matches == 0) {
-               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-               chat_view_insert_text_with_emoticons (priv->buffer, &iter, body);
-       } else {
-               gint   last = 0;
-               gint   s = 0, e = 0;
-               gchar *tmp;
-
-               for (i = 0; i < num_matches; i++) {
-                       s = g_array_index (start, gint, i);
-                       e = g_array_index (end, gint, i);
-
-                       if (s > last) {
-                               tmp = empathy_substring (body, last, s);
-
-                               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-                               chat_view_insert_text_with_emoticons (priv->buffer,
-                                                                     &iter,
-                                                                     tmp);
-                               g_free (tmp);
-                       }
-
-                       tmp = empathy_substring (body, s, e);
-
-                       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-                       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                                 &iter,
-                                                                 tmp,
-                                                                 -1,
-                                                                 link_tag,
-                                                                 "link",
-                                                                 NULL);
-
-                       g_free (tmp);
-
-                       last = e;
-               }
-
-               if (e < strlen (body)) {
-                       tmp = empathy_substring (body, e, strlen (body));
-
-                       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-                       chat_view_insert_text_with_emoticons (priv->buffer,
-                                                             &iter,
-                                                             tmp);
-                       g_free (tmp);
-               }
-       }
-
-       g_array_free (start, TRUE);
-       g_array_free (end, TRUE);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert (priv->buffer, &iter, "\n", 1);
-
-       /* Apply the style to the inserted text. */
-       gtk_text_buffer_get_iter_at_mark (priv->buffer, &start_iter, mark);
-       gtk_text_buffer_get_end_iter (priv->buffer, &end_iter);
-
-       gtk_text_buffer_apply_tag_by_name (priv->buffer,
-                                          tag,
-                                          &start_iter,
-                                          &end_iter);
-
-       gtk_text_buffer_delete_mark (priv->buffer, mark);
-}
-
-static void
-chat_view_maybe_append_fancy_header (EmpathyChatView *view,
-                                    EmpathyMessage  *msg)
-{
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *name;
-       gboolean            header;
-       GtkTextIter         iter;
-       gchar              *tmp;
-       const gchar        *tag;
-       const gchar        *avatar_tag;
-       const gchar        *line_top_tag;
-       const gchar        *line_bottom_tag;
-       gboolean            from_self;
-       GdkPixbuf          *pixbuf = NULL;
-       GdkPixbuf          *avatar = NULL;
-
-       priv = GET_PRIV (view);
-
-       sender = empathy_message_get_sender (msg);
-       name = empathy_contact_get_name (sender);
-       from_self = empathy_contact_is_user (sender);
-
-       empathy_debug (DEBUG_DOMAIN, "Maybe add fancy header");
-
-       if (from_self) {
-               tag = "fancy-header-self";
-               line_top_tag = "fancy-line-top-self";
-               line_bottom_tag = "fancy-line-bottom-self";
-       } else {
-               tag = "fancy-header-other";
-               line_top_tag = "fancy-line-top-other";
-               line_bottom_tag = "fancy-line-bottom-other";
-       }
-
-       header = FALSE;
-
-       /* Only insert a header if the previously inserted block is not the same
-        * as this one. This catches all the different cases:
-        */
-       if (priv->last_block_type != BLOCK_TYPE_SELF &&
-           priv->last_block_type != BLOCK_TYPE_OTHER) {
-               header = TRUE;
-       }
-       else if (from_self && priv->last_block_type == BLOCK_TYPE_OTHER) {
-               header = TRUE;
-       }
-       else if (!from_self && priv->last_block_type == BLOCK_TYPE_SELF) {
-               header = TRUE;
-       }
-       else if (!from_self &&
-                (!priv->last_contact ||
-                 !empathy_contact_equal (sender, priv->last_contact))) {
-               header = TRUE;
-       }
-
-       if (!header) {
-               return;
-       }
-
-       chat_view_append_spacing (view);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 "\n",
-                                                 -1,
-                                                 line_top_tag,
-                                                 NULL);
-
-       /* FIXME: we should have a cash of avatar pixbufs */
-       pixbuf = empathy_pixbuf_avatar_from_contact_scaled (sender, 32, 32);
-       if (pixbuf) {
-               avatar = chat_view_pad_to_size (pixbuf, 32, 32, 6);
-               g_object_unref (pixbuf);
-       }
-
-       if (avatar) {
-               GtkTextIter start;
-
-               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-               gtk_text_buffer_insert_pixbuf (priv->buffer, &iter, avatar);
-
-               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-               start = iter;
-               gtk_text_iter_backward_char (&start);
-
-               if (from_self) {
-                       gtk_text_buffer_apply_tag_by_name (priv->buffer,
-                                                          "fancy-avatar-self",
-                                                          &start, &iter);
-                       avatar_tag = "fancy-header-self-avatar";
-               } else {
-                       gtk_text_buffer_apply_tag_by_name (priv->buffer,
-                                                          "fancy-avatar-other",
-                                                          &start, &iter);
-                       avatar_tag = "fancy-header-other-avatar";
-               }
-
-               g_object_unref (avatar);
-       } else {
-               avatar_tag = NULL;
-       }
-
-       tmp = g_strdup_printf ("%s\n", name);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 tmp,
-                                                 -1,
-                                                 tag,
-                                                 avatar_tag,
-                                                 NULL);
-       g_free (tmp);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 "\n",
-                                                 -1,
-                                                 line_bottom_tag,
-                                                 NULL);
-}
-
-static void
-chat_view_append_irc_action (EmpathyChatView *view,
-                            EmpathyMessage  *msg)
-{
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *name;
-       GtkTextIter         iter;
-       const gchar        *body;
-       gchar              *tmp;
-       const gchar        *tag;
-
-       priv = GET_PRIV (view);
-
-       empathy_debug (DEBUG_DOMAIN, "Add IRC action");
-
-       sender = empathy_message_get_sender (msg);
-       name = empathy_contact_get_name (sender);
-
-       if (empathy_contact_is_user (sender)) {
-               tag = "irc-action-self";
-       } else {
-               tag = "irc-action-other";
-       }
-
-       if (priv->last_block_type != BLOCK_TYPE_SELF &&
-           priv->last_block_type != BLOCK_TYPE_OTHER) {
-               chat_view_append_spacing (view);
-       }
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-
-       tmp = g_strdup_printf (" * %s ", name);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 tmp,
-                                                 -1,
-                                                 "cut",
-                                                 tag,
-                                                 NULL);
-       g_free (tmp);
-
-       body = empathy_message_get_body (msg);
-       chat_view_append_text (view, body, tag);
-}
-
-static void
-chat_view_append_fancy_action (EmpathyChatView *view,
-                              EmpathyMessage  *msg)
-{
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *name;
-       const gchar        *body;
-       GtkTextIter         iter;
-       gchar              *tmp;
-       const gchar        *tag;
-       const gchar        *line_tag;
-
-       priv = GET_PRIV (view);
-
-       empathy_debug (DEBUG_DOMAIN, "Add fancy action");
-
-       sender = empathy_message_get_sender (msg);
-       name = empathy_contact_get_name (sender);
-
-       if (empathy_contact_is_user (sender)) {
-               tag = "fancy-action-self";
-               line_tag = "fancy-line-self";
-       } else {
-               tag = "fancy-action-other";
-               line_tag = "fancy-line-other";
-       }
-
-       tmp = g_strdup_printf (" * %s ", name);
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 tmp,
-                                                 -1,
-                                                 tag,
-                                                 NULL);
-       g_free (tmp);
-
-       body = empathy_message_get_body (msg);
-       chat_view_append_text (view, body, tag);
-}
-
-static void
-chat_view_append_irc_message (EmpathyChatView *view,
-                             EmpathyMessage  *msg)
-{
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *name;
-       const gchar        *body;
-       const gchar        *nick_tag;
-       const gchar        *body_tag;
-       GtkTextIter         iter;
-       gchar              *tmp;
-
-       priv = GET_PRIV (view);
-
-       empathy_debug (DEBUG_DOMAIN, "Add IRC message");
-
-       body = empathy_message_get_body (msg);
-       sender = empathy_message_get_sender (msg);
-       name = empathy_contact_get_name (sender);
-
-       if (empathy_contact_is_user (sender)) {
-               nick_tag = "irc-nick-self";
-               body_tag = "irc-body-self";
-       } else {
-               if (empathy_chat_should_highlight_nick (msg)) {
-                       nick_tag = "irc-nick-highlight";
-               } else {
-                       nick_tag = "irc-nick-other";
-               }
-
-               body_tag = "irc-body-other";
-       }
-
-       if (priv->last_block_type != BLOCK_TYPE_SELF &&
-           priv->last_block_type != BLOCK_TYPE_OTHER) {
-               chat_view_append_spacing (view);
-       }
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301  USA
+ *
+ * Authors: Xavier Claessens <xclaesse@gmail.com>
+ */
 
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
+#include "config.h"
 
-       /* The nickname. */
-       tmp = g_strdup_printf ("%s: ", name);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 tmp,
-                                                 -1,
-                                                 "cut",
-                                                 nick_tag,
-                                                 NULL);
-       g_free (tmp);
+#include "empathy-chat-view.h"
+#include "empathy-smiley-manager.h"
 
-       /* The text body. */
-       chat_view_append_text (view, body, body_tag);
-}
+static void chat_view_base_init (gpointer klass);
 
-static void
-chat_view_append_fancy_message (EmpathyChatView *view,
-                               EmpathyMessage  *msg)
+GType
+empathy_chat_view_get_type (void)
 {
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *body;
-       const gchar        *tag;
+       static GType type = 0;
 
-       priv = GET_PRIV (view);
+       if (!type) {
+               static const GTypeInfo type_info = {
+                       sizeof (EmpathyChatViewIface),
+                       chat_view_base_init,
+                       NULL,
+               };
 
-       sender = empathy_message_get_sender (msg);
+               type = g_type_register_static (G_TYPE_INTERFACE,
+                                              "EmpathyChatView",
+                                              &type_info, 0);
 
-       if (empathy_contact_is_user (sender)) {
-               tag = "fancy-body-self";
-       } else {
-               tag = "fancy-body-other";
-
-               /* FIXME: Might want to support nick highlighting here... */
+               g_type_interface_add_prerequisite (type, GTK_TYPE_WIDGET);
        }
 
-       body = empathy_message_get_body (msg);
-       chat_view_append_text (view, body, tag);
+       return type;
 }
 
 static void
-chat_view_theme_changed_cb (EmpathyThemeManager *manager,
-                           EmpathyChatView     *view)
+chat_view_base_init (gpointer klass)
 {
-       EmpathyChatViewPriv *priv;
-       gboolean            show_avatars = FALSE;
-       gboolean            theme_rooms = FALSE;
-
-       priv = GET_PRIV (view);
+       static gboolean initialized = FALSE;
 
-       priv->last_block_type = BLOCK_TYPE_NONE;
-
-       empathy_conf_get_bool (empathy_conf_get (),
-                             EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
-                             &theme_rooms);
-       if (!theme_rooms && priv->is_group_chat) {
-               empathy_theme_manager_apply (manager, view, NULL);
-       } else {
-               empathy_theme_manager_apply_saved (manager, view);
+       if (!initialized) {
+               initialized = TRUE;
        }
-
-       /* Needed for now to update the "rise" property of the names to get it
-        * vertically centered.
-        */
-       empathy_conf_get_bool (empathy_conf_get (),
-                              EMPATHY_PREFS_UI_SHOW_AVATARS,
-                              &show_avatars);
-       empathy_theme_manager_update_show_avatars (manager, view, show_avatars);
-}
-
-/* Pads a pixbuf to the specified size, by centering it in a larger transparent
- * pixbuf. Returns a new ref.
- */
-static GdkPixbuf *
-chat_view_pad_to_size (GdkPixbuf *pixbuf,
-                      gint       width,
-                      gint       height,
-                      gint       extra_padding_right)
-{
-       gint       src_width, src_height;
-       GdkPixbuf *padded;
-       gint       x_offset, y_offset;
-
-       src_width = gdk_pixbuf_get_width (pixbuf);
-       src_height = gdk_pixbuf_get_height (pixbuf);
-
-       x_offset = (width - src_width) / 2;
-       y_offset = (height - src_height) / 2;
-
-       padded = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
-                                TRUE, /* alpha */
-                                gdk_pixbuf_get_bits_per_sample (pixbuf),
-                                width + extra_padding_right,
-                                height);
-
-       gdk_pixbuf_fill (padded, 0);
-
-       gdk_pixbuf_copy_area (pixbuf,
-                             0, /* source coords */
-                             0,
-                             src_width,
-                             src_height,
-                             padded,
-                             x_offset, /* dest coords */
-                             y_offset);
-
-       return padded;
 }
 
-EmpathyChatView *
-empathy_chat_view_new (void)
-{
-       return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
-}
-
-/* The name is optional, if NULL, the sender for msg is used. */
 void
 empathy_chat_view_append_message (EmpathyChatView *view,
-                                EmpathyMessage  *msg)
+                                 EmpathyMessage  *msg)
 {
-       EmpathyChatViewPriv *priv;
-       EmpathyContact      *sender;
-       const gchar        *body;
-       gboolean            scroll_down;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-       g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
-
-       priv = GET_PRIV (view);
-
-       body = empathy_message_get_body (msg);
-       if (!body) {
-               return;
-       }
-
-       scroll_down = chat_view_is_scrolled_down (view);
-
-       chat_view_maybe_trim_buffer (view);
-       chat_view_maybe_append_date_and_time (view, msg);
-
-       sender = empathy_message_get_sender (msg);
-
-       if (!priv->irc_style) {
-               chat_view_maybe_append_fancy_header (view, msg);
-       }
-
-       if (empathy_message_get_type (msg) == EMPATHY_MESSAGE_TYPE_ACTION) {
-               if (priv->irc_style) {
-                       chat_view_append_irc_action (view, msg);
-               } else {
-                       chat_view_append_fancy_action (view, msg);
-               }
-       } else {
-               if (priv->irc_style) {
-                       chat_view_append_irc_message (view, msg);
-               } else {
-                       chat_view_append_fancy_message (view, msg);
-               }
-       }
-
-       /* Reset the last inserted contact. */
-       if (priv->last_contact) {
-               g_object_unref (priv->last_contact);
-       }
 
-       if (empathy_contact_is_user (sender)) {
-               priv->last_block_type = BLOCK_TYPE_SELF;
-               priv->last_contact = NULL;
-       } else {
-               priv->last_block_type = BLOCK_TYPE_OTHER;
-               priv->last_contact = g_object_ref (sender);
-       }
-
-       if (scroll_down) {
-               empathy_chat_view_scroll_down (view);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_message) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_message (view,
+                                                                        msg);
        }
 }
 
 void
 empathy_chat_view_append_event (EmpathyChatView *view,
-                              const gchar    *str)
-{
-       EmpathyChatViewPriv *priv;
-       gboolean            bottom;
-       GtkTextIter         iter;
-       gchar              *msg;
-       const gchar        *tag;
-
-       g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-       g_return_if_fail (!G_STR_EMPTY (str));
-
-       priv = GET_PRIV (view);
-
-       bottom = chat_view_is_scrolled_down (view);
-
-       chat_view_maybe_trim_buffer (view);
-
-       if (priv->irc_style) {
-               tag = "irc-event";
-               msg = g_strdup_printf (" - %s\n", str);
-       } else {
-               tag = "fancy-event";
-               msg = g_strdup_printf (" - %s\n", str);
-       }
-
-       if (priv->last_block_type != BLOCK_TYPE_EVENT) {
-               /* Comment out for now. */
-               /*chat_view_append_spacing (view);*/
-       }
-
-       chat_view_maybe_append_date_and_time (view, NULL);
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer, &iter,
-                                                 msg, -1,
-                                                 tag,
-                                                 NULL);
-       g_free (msg);
-
-       if (bottom) {
-               empathy_chat_view_scroll_down (view);
-       }
-
-       priv->last_block_type = BLOCK_TYPE_EVENT;
-}
-
-void
-empathy_chat_view_append_button (EmpathyChatView *view,
-                               const gchar    *message,
-                               GtkWidget      *button1,
-                               GtkWidget      *button2)
+                               const gchar    *str)
 {
-       EmpathyChatViewPriv   *priv;
-       GtkTextChildAnchor   *anchor;
-       GtkTextIter           iter;
-       gboolean              bottom;
-       const gchar          *tag;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-       g_return_if_fail (button1 != NULL);
-
-       priv = GET_PRIV (view);
-
-       if (priv->irc_style) {
-               tag = "irc-invite";
-       } else {
-               tag = "fancy-invite";
-       }
-
-       bottom = chat_view_is_scrolled_down (view);
-
-       chat_view_maybe_append_date_and_time (view, NULL);
-
-       if (message) {
-               chat_view_append_text (view, message, tag);
-       }
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-
-       anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
-       gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button1, anchor);
-       gtk_widget_show (button1);
-
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 " ",
-                                                 1,
-                                                 tag,
-                                                 NULL);
 
-       if (button2) {
-               gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-               
-               anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
-               gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button2, anchor);
-               gtk_widget_show (button2);
-               
-               gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                         &iter,
-                                                         " ",
-                                                         1,
-                                                         tag,
-                                                         NULL);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_event) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_event (view,
+                                                                      str);
        }
-
-       gtk_text_buffer_get_end_iter (priv->buffer, &iter);
-       gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
-                                                 &iter,
-                                                 "\n\n",
-                                                 2,
-                                                 tag,
-                                                 NULL);
-
-       if (bottom) {
-               empathy_chat_view_scroll_down (view);
-       }
-
-       priv->last_block_type = BLOCK_TYPE_INVITE;
 }
 
 void
 empathy_chat_view_scroll (EmpathyChatView *view,
-                        gboolean        allow_scrolling)
+                         gboolean        allow_scrolling)
 {
-       EmpathyChatViewPriv *priv;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 
-       priv = GET_PRIV (view);
-
-       priv->allow_scrolling = allow_scrolling;
-
-       empathy_debug (DEBUG_DOMAIN, "Scrolling %s",
-                     allow_scrolling ? "enabled" : "disabled");
-}
-
-/* Code stolen from pidgin/gtkimhtml.c */
-static gboolean
-chat_view_scroll_cb (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-       GtkAdjustment      *adj;
-       gdouble             max_val;
-
-       priv = GET_PRIV (view);
-       adj = GTK_TEXT_VIEW (view)->vadjustment;
-       max_val = adj->upper - adj->page_size;
-
-       g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
-
-       if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
-               /* time's up. jump to the end and kill the timer */
-               gtk_adjustment_set_value (adj, max_val);
-               g_timer_destroy (priv->scroll_time);
-               priv->scroll_time = NULL;
-               priv->scroll_timeout = 0;
-               return FALSE;
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll (view,
+                                                                allow_scrolling);
        }
-
-       /* scroll by 1/3rd the remaining distance */
-       gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
-       return TRUE;
 }
 
 void
 empathy_chat_view_scroll_down (EmpathyChatView *view)
 {
-       EmpathyChatViewPriv *priv;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 
-       priv = GET_PRIV (view);
-
-       if (!priv->allow_scrolling) {
-               return;
-       }
-
-       empathy_debug (DEBUG_DOMAIN, "Scrolling down");
-
-       if (priv->scroll_time) {
-               g_timer_reset (priv->scroll_time);
-       } else {
-               priv->scroll_time = g_timer_new();
-       }
-       if (!priv->scroll_timeout) {
-               priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
-                                                     (GSourceFunc) chat_view_scroll_cb,
-                                                     view);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll_down) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll_down (view);
        }
 }
 
 gboolean
-empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
-                                      GtkTextIter    *start,
-                                      GtkTextIter    *end)
+empathy_chat_view_get_has_selection (EmpathyChatView *view)
 {
-       GtkTextBuffer *buffer;
-
        g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
 
-       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-
-       return gtk_text_buffer_get_selection_bounds (buffer, start, end);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_has_selection) {
+               return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_has_selection (view);
+       }
+       return FALSE;
 }
 
 void
 empathy_chat_view_clear (EmpathyChatView *view)
 {
-       GtkTextBuffer      *buffer;
-       EmpathyChatViewPriv *priv;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 
-       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-       gtk_text_buffer_set_text (buffer, "", -1);
-
-       /* We set these back to the initial values so we get
-        * timestamps when clearing the window to know when
-        * conversations start.
-        */
-       priv = GET_PRIV (view);
-
-       priv->last_block_type = BLOCK_TYPE_NONE;
-       priv->last_timestamp = 0;
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->clear) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->clear (view);
+       }
 }
 
 gboolean
 empathy_chat_view_find_previous (EmpathyChatView *view,
-                               const gchar    *search_criteria,
-                               gboolean        new_search)
+                                const gchar    *search_criteria,
+                                gboolean        new_search)
 {
-       EmpathyChatViewPriv *priv;
-       GtkTextBuffer      *buffer;
-       GtkTextIter         iter_at_mark;
-       GtkTextIter         iter_match_start;
-       GtkTextIter         iter_match_end;
-       gboolean            found;
-       gboolean            from_start = FALSE;
-
        g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
-       g_return_val_if_fail (search_criteria != NULL, FALSE);
-
-       priv = GET_PRIV (view);
-
-       buffer = priv->buffer;
 
-       if (G_STR_EMPTY (search_criteria)) {
-               if (priv->find_mark_previous) {
-                       gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
-
-                       gtk_text_buffer_move_mark (buffer,
-                                                  priv->find_mark_previous,
-                                                  &iter_at_mark);
-                       gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
-                                                     priv->find_mark_previous,
-                                                     0.0,
-                                                     TRUE,
-                                                     0.0,
-                                                     0.0);
-                       gtk_text_buffer_select_range (buffer,
-                                                     &iter_at_mark,
-                                                     &iter_at_mark);
-               }
-
-               return FALSE;
-       }
-
-       if (new_search) {
-               from_start = TRUE;
-       }
-
-       if (priv->find_mark_previous) {
-               gtk_text_buffer_get_iter_at_mark (buffer,
-                                                 &iter_at_mark,
-                                                 priv->find_mark_previous);
-       } else {
-               gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
-               from_start = TRUE;
-       }
-
-       priv->find_last_direction = FALSE;
-
-       found = empathy_text_iter_backward_search (&iter_at_mark,
-                                                 search_criteria,
-                                                 &iter_match_start,
-                                                 &iter_match_end,
-                                                 NULL);
-
-       if (!found) {
-               gboolean result = FALSE;
-
-               if (from_start) {
-                       return result;
-               }
-
-               /* Here we wrap around. */
-               if (!new_search && !priv->find_wrapped) {
-                       priv->find_wrapped = TRUE;
-                       result = empathy_chat_view_find_previous (view, 
-                                                                search_criteria, 
-                                                                FALSE);
-                       priv->find_wrapped = FALSE;
-               }
-
-               return result;
-       }
-
-       /* Set new mark and show on screen */
-       if (!priv->find_mark_previous) {
-               priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
-                                                                       &iter_match_start,
-                                                                       TRUE);
-       } else {
-               gtk_text_buffer_move_mark (buffer,
-                                          priv->find_mark_previous,
-                                          &iter_match_start);
-       }
-
-       if (!priv->find_mark_next) {
-               priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
-                                                                   &iter_match_end,
-                                                                   TRUE);
-       } else {
-               gtk_text_buffer_move_mark (buffer,
-                                          priv->find_mark_next,
-                                          &iter_match_end);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_previous) {
+               return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_previous (view,
+                                                                              search_criteria,
+                                                                              new_search);
        }
-
-       gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
-                                     priv->find_mark_previous,
-                                     0.0,
-                                     TRUE,
-                                     0.5,
-                                     0.5);
-
-       gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
-       gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
-
-       return TRUE;
+       return FALSE;
 }
 
 gboolean
 empathy_chat_view_find_next (EmpathyChatView *view,
-                           const gchar    *search_criteria,
-                           gboolean        new_search)
+                            const gchar    *search_criteria,
+                            gboolean        new_search)
 {
-       EmpathyChatViewPriv *priv;
-       GtkTextBuffer      *buffer;
-       GtkTextIter         iter_at_mark;
-       GtkTextIter         iter_match_start;
-       GtkTextIter         iter_match_end;
-       gboolean            found;
-       gboolean            from_start = FALSE;
-
        g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
-       g_return_val_if_fail (search_criteria != NULL, FALSE);
-
-       priv = GET_PRIV (view);
-
-       buffer = priv->buffer;
-
-       if (G_STR_EMPTY (search_criteria)) {
-               if (priv->find_mark_next) {
-                       gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
-
-                       gtk_text_buffer_move_mark (buffer,
-                                                  priv->find_mark_next,
-                                                  &iter_at_mark);
-                       gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
-                                                     priv->find_mark_next,
-                                                     0.0,
-                                                     TRUE,
-                                                     0.0,
-                                                     0.0);
-                       gtk_text_buffer_select_range (buffer,
-                                                     &iter_at_mark,
-                                                     &iter_at_mark);
-               }
-
-               return FALSE;
-       }
-
-       if (new_search) {
-               from_start = TRUE;
-       }
-
-       if (priv->find_mark_next) {
-               gtk_text_buffer_get_iter_at_mark (buffer,
-                                                 &iter_at_mark,
-                                                 priv->find_mark_next);
-       } else {
-               gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
-               from_start = TRUE;
-       }
 
-       priv->find_last_direction = TRUE;
-
-       found = empathy_text_iter_forward_search (&iter_at_mark,
-                                                search_criteria,
-                                                &iter_match_start,
-                                                &iter_match_end,
-                                                NULL);
-
-       if (!found) {
-               gboolean result = FALSE;
-
-               if (from_start) {
-                       return result;
-               }
-
-               /* Here we wrap around. */
-               if (!new_search && !priv->find_wrapped) {
-                       priv->find_wrapped = TRUE;
-                       result = empathy_chat_view_find_next (view, 
-                                                            search_criteria, 
-                                                            FALSE);
-                       priv->find_wrapped = FALSE;
-               }
-
-               return result;
-       }
-
-       /* Set new mark and show on screen */
-       if (!priv->find_mark_next) {
-               priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
-                                                              &iter_match_end,
-                                                              TRUE);
-       } else {
-               gtk_text_buffer_move_mark (buffer,
-                                          priv->find_mark_next,
-                                          &iter_match_end);
-       }
-
-       if (!priv->find_mark_previous) {
-               priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
-                                                                       &iter_match_start,
-                                                                       TRUE);
-       } else {
-               gtk_text_buffer_move_mark (buffer,
-                                          priv->find_mark_previous,
-                                          &iter_match_start);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_next) {
+               return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_next (view,
+                                                                          search_criteria,
+                                                                          new_search);
        }
-
-       gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
-                                     priv->find_mark_next,
-                                     0.0,
-                                     TRUE,
-                                     0.5,
-                                     0.5);
-
-       gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
-       gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
-
-       return TRUE;
+       return FALSE;
 }
 
 
 void
 empathy_chat_view_find_abilities (EmpathyChatView *view,
-                                const gchar    *search_criteria,
-                                gboolean       *can_do_previous,
-                                gboolean       *can_do_next)
+                                 const gchar    *search_criteria,
+                                 gboolean       *can_do_previous,
+                                 gboolean       *can_do_next)
 {
-       EmpathyChatViewPriv *priv;
-       GtkTextBuffer      *buffer;
-       GtkTextIter         iter_at_mark;
-       GtkTextIter         iter_match_start;
-       GtkTextIter         iter_match_end;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-       g_return_if_fail (search_criteria != NULL);
-       g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
-
-       priv = GET_PRIV (view);
 
-       buffer = priv->buffer;
-
-       if (can_do_previous) {
-               if (priv->find_mark_previous) {
-                       gtk_text_buffer_get_iter_at_mark (buffer,
-                                                         &iter_at_mark,
-                                                         priv->find_mark_previous);
-               } else {
-                       gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
-               }
-               
-               *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
-                                                                    search_criteria,
-                                                                    &iter_match_start,
-                                                                    &iter_match_end,
-                                                                    NULL);
-       }
-
-       if (can_do_next) {
-               if (priv->find_mark_next) {
-                       gtk_text_buffer_get_iter_at_mark (buffer,
-                                                         &iter_at_mark,
-                                                         priv->find_mark_next);
-               } else {
-                       gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
-               }
-               
-               *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
-                                                               search_criteria,
-                                                               &iter_match_start,
-                                                               &iter_match_end,
-                                                               NULL);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_abilities) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->find_abilities (view,
+                                                                        search_criteria,
+                                                                        can_do_previous,
+                                                                        can_do_next);
        }
 }
 
 void
 empathy_chat_view_highlight (EmpathyChatView *view,
-                           const gchar    *text)
+                            const gchar     *text)
 {
-       GtkTextBuffer *buffer;
-       GtkTextIter    iter;
-       GtkTextIter    iter_start;
-       GtkTextIter    iter_end;
-       GtkTextIter    iter_match_start;
-       GtkTextIter    iter_match_end;
-       gboolean       found;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 
-       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-
-       gtk_text_buffer_get_start_iter (buffer, &iter);
-
-       gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
-       gtk_text_buffer_remove_tag_by_name (buffer, "highlight",
-                                           &iter_start,
-                                           &iter_end);
-
-       if (G_STR_EMPTY (text)) {
-               return;
-       }
-
-       while (1) {
-               found = empathy_text_iter_forward_search (&iter,
-                                                        text,
-                                                        &iter_match_start,
-                                                        &iter_match_end,
-                                                        NULL);
-
-               if (!found) {
-                       break;
-               }
-
-               gtk_text_buffer_apply_tag_by_name (buffer, "highlight",
-                                                  &iter_match_start,
-                                                  &iter_match_end);
-
-               iter = iter_match_end;
-               gtk_text_iter_forward_char (&iter);
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->highlight) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->highlight (view, text);
        }
 }
 
 void
 empathy_chat_view_copy_clipboard (EmpathyChatView *view)
 {
-       GtkTextBuffer *buffer;
-       GtkClipboard  *clipboard;
-
-       g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-
-       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-       clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
-
-       gtk_text_buffer_copy_clipboard (buffer, clipboard);
-}
-
-gboolean
-empathy_chat_view_get_irc_style (EmpathyChatView *view)
-{
-       EmpathyChatViewPriv *priv;
-
-       g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
-
-       priv = GET_PRIV (view);
-
-       return priv->irc_style;
-}
-
-void
-empathy_chat_view_set_irc_style (EmpathyChatView *view,
-                               gboolean        irc_style)
-{
-       EmpathyChatViewPriv *priv;
-
-       g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-
-       priv = GET_PRIV (view);
-
-       priv->irc_style = irc_style;
-}
-
-void
-empathy_chat_view_set_margin (EmpathyChatView *view,
-                            gint            margin)
-{
-       EmpathyChatViewPriv *priv;
-
        g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
 
-       priv = GET_PRIV (view);
-
-       g_object_set (view,
-                     "left-margin", margin,
-                     "right-margin", margin,
-                     NULL);
-}
-
-GdkPixbuf *
-empathy_chat_view_get_smiley_image (EmpathySmiley smiley)
-{
-       static GdkPixbuf *pixbufs[EMPATHY_SMILEY_COUNT];
-       static gboolean   inited = FALSE;
-
-       if (!inited) {
-               gint i;
-
-               for (i = 0; i < EMPATHY_SMILEY_COUNT; i++) {
-                       pixbufs[i] = empathy_pixbuf_from_smiley (i, GTK_ICON_SIZE_MENU);
-               }
-
-               inited = TRUE;
-       }
-
-       return pixbufs[smiley];
-}
-
-const gchar *
-empathy_chat_view_get_smiley_text (EmpathySmiley smiley)
-{
-       gint i;
-
-       for (i = 0; i < G_N_ELEMENTS (smileys); i++) {
-               if (smileys[i].smiley != smiley) {
-                       continue;
-               }
-
-               return smileys[i].pattern;
-       }
-
-       return NULL;
-}
-
-GtkWidget *
-empathy_chat_view_get_smiley_menu (GCallback    callback,
-                                 gpointer     user_data,
-                                 GtkTooltips *tooltips)
-{
-       GtkWidget *menu;
-       gint       x;
-       gint       y;
-       gint       i;
-
-       g_return_val_if_fail (callback != NULL, NULL);
-
-       menu = gtk_menu_new ();
-
-       for (i = 0, x = 0, y = 0; i < EMPATHY_SMILEY_COUNT; i++) {
-               GtkWidget   *item;
-               GtkWidget   *image;
-               GdkPixbuf   *pixbuf;
-               const gchar *smiley_text;
-
-               pixbuf = empathy_chat_view_get_smiley_image (i);
-               if (!pixbuf) {
-                       continue;
-               }
-
-               image = gtk_image_new_from_pixbuf (pixbuf);
-
-               item = gtk_image_menu_item_new_with_label ("");
-               gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
-
-               gtk_menu_attach (GTK_MENU (menu), item,
-                                x, x + 1, y, y + 1);
-
-               smiley_text = empathy_chat_view_get_smiley_text (i);
-
-               gtk_tooltips_set_tip (tooltips,
-                                     item,
-                                     smiley_text,
-                                     NULL);
-
-               g_object_set_data  (G_OBJECT (item), "smiley_text", (gpointer) smiley_text);
-               g_signal_connect (item, "activate", callback, user_data);
-
-               if (x > 3) {
-                       y++;
-                       x = 0;
-               } else {
-                       x++;
-               }
+       if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->copy_clipboard) {
+               EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->copy_clipboard (view);
        }
-
-       gtk_widget_show_all (menu);
-
-       return menu;
 }
 
-/* FIXME: Do we really need this? Better to do it internally only at setup time,
- * we will never change it on the fly.
- */
-void
-empathy_chat_view_set_is_group_chat (EmpathyChatView *view,
-                                   gboolean        is_group_chat)
-{
-       EmpathyChatViewPriv *priv;
-       gboolean            theme_rooms = FALSE;
-
-       g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-
-       priv = GET_PRIV (view);
-
-       priv->is_group_chat = is_group_chat;
-
-       empathy_conf_get_bool (empathy_conf_get (),
-                             EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
-                             &theme_rooms);
-
-       if (!theme_rooms && is_group_chat) {
-               empathy_theme_manager_apply (empathy_theme_manager_get (),
-                                           view,
-                                           NULL);
-       } else {
-               empathy_theme_manager_apply_saved (empathy_theme_manager_get (),
-                                                 view);
-       }
-}