EmpathyChatView as GInterface

svn path=/trunk/; revision=1978

5 files changed, 1630 insertions, 1169 deletions

diff --git a/libempathy-gtk/Makefile.am b/libempathy-gtk/Makefile.am
index d2801762d..01ca09563 100644
--- a/libempathy-gtk/Makefile.am
+++ b/libempathy-gtk/Makefile.am
@@ -27,6 +27,7 @@ libempathy_gtk_la_SOURCES =             	\
 	empathy-cell-renderer-expander.c	\
 	empathy-cell-renderer-text.c		\
 	empathy-chat.c				\
+	empathy-chat-simple-view.c		\
 	empathy-chat-view.c			\
 	empathy-conf.c				\
 	empathy-contact-dialogs.c		\
@@ -74,6 +75,7 @@ libempathy_gtk_headers =			\
 	empathy-cell-renderer-expander.h	\
 	empathy-cell-renderer-text.h		\
 	empathy-chat.h				\
+	empathy-chat-simple-view.h		\
 	empathy-chat-view.h			\
 	empathy-conf.h				\
 	empathy-contact-dialogs.h		\
diff --git a/libempathy-gtk/empathy-chat-simple-view.c b/libempathy-gtk/empathy-chat-simple-view.c
new file mode 100644
index 000000000..999a21d06
--- /dev/null
+++ b/libempathy-gtk/empathy-chat-simple-view.c
@@ -0,0 +1,1393 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2002-2007 Imendio AB
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * 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-lib.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 <telepathy-glib/util.h>
+#include <libmissioncontrol/mc-account.h>
+
+#include <libempathy/empathy-utils.h>
+
+#include "empathy-chat-simple-view.h"
+#include "empathy-chat.h"
+#include "empathy-conf.h"
+#include "empathy-theme-manager.h"
+#include "empathy-ui-utils.h"
+#include "empathy-smiley-manager.h"
+
+#define DEBUG_FLAG EMPATHY_DEBUG_CHAT
+#include <libempathy/empathy-debug.h>
+
+/* 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) EMPATHY_GET_PRIV (obj, EmpathyChatView)
+
+typedef struct {
+	GtkTextBuffer *buffer;
+	
+	EmpathyTheme   *theme;
+	
+	time_t         last_timestamp;
+	
+	gboolean       allow_scrolling;
+	guint          scroll_timeout;
+	GTimer        *scroll_time;
+	
+	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;
+} EmpathyChatViewPriv;
+
+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                 (EmpathyChatSimpleView           *view);
+static void     chat_view_system_font_update         (EmpathyChatSimpleView           *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             (EmpathyChatSimpleView           *view,
+						      GtkMenu                  *menu,
+						      gpointer                  user_data);
+static gboolean chat_view_event_cb                   (EmpathyChatSimpleView           *view,
+						      GdkEventMotion           *event,
+						      GtkTextTag               *tag);
+static gboolean chat_view_url_event_cb               (GtkTextTag               *tag,
+						      GObject                  *object,
+						      GdkEvent                 *event,
+						      GtkTextIter              *iter,
+						      EmpathyChatView          *view);
+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,
+						      EmpathyChatSimpleView           *view);
+static gboolean chat_view_is_scrolled_down           (EmpathyChatSimpleView           *view);
+static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
+						      EmpathyChatSimpleView           *view);
+static void     chat_view_theme_notify_cb            (EmpathyTheme              *theme,
+						      GParamSpec                *param,
+						      EmpathyChatSimpleView           *view);
+
+void             empathy_chat_simple_view_append_message       (EmpathyChatView *view,
+								EmpathyMessage  *msg);
+void             empathy_chat_simple_view_append_event         (EmpathyChatView *view,
+								const gchar     *str);
+void             empathy_chat_simple_view_append_button        (EmpathyChatView *view,
+								const gchar     *message,
+								GtkWidget       *button1,
+								GtkWidget       *button2);
+void             empathy_chat_simple_view_set_margin           (EmpathyChatView *view,
+								gint             margin);
+void             empathy_chat_simple_view_scroll               (EmpathyChatView *view,
+								gboolean         allow_scrolling);
+void             empathy_chat_simple_view_scroll_down          (EmpathyChatView *view);
+gboolean         empathy_chat_simple_view_get_selection_bounds (EmpathyChatView *view,
+								GtkTextIter     *start,
+								GtkTextIter     *end);
+void             empathy_chat_simple_view_clear                (EmpathyChatView *view);
+gboolean         empathy_chat_simple_view_find_previous        (EmpathyChatView *view,
+								const gchar     *search_criteria,
+								gboolean         new_search);
+gboolean         empathy_chat_simple_view_find_next            (EmpathyChatView *view,
+								const gchar     *search_criteria,
+								gboolean         new_search);
+void             empathy_chat_simple_view_find_abilities       (EmpathyChatView *view,
+								const gchar     *search_criteria,
+								gboolean        *can_do_previous,
+								gboolean        *can_do_next);
+void             empathy_chat_simple_view_highlight            (EmpathyChatView *view,
+								const gchar     *text);
+void             empathy_chat_simple_view_copy_clipboard       (EmpathyChatView *view);
+EmpathyTheme *   empathy_chat_simple_view_get_theme            (EmpathyChatView *view);
+void             empathy_chat_simple_view_set_theme            (EmpathyChatView *view,
+								EmpathyTheme    *theme);
+void             empathy_chat_simple_view_set_margin           (EmpathyChatView *view,
+								gint             margin);
+time_t           empathy_chat_simple_view_get_last_timestamp   (EmpathyChatView *view);
+void             empathy_chat_simple_view_set_last_timestamp   (EmpathyChatView *view,
+								time_t           timestamp);
+EmpathyContact * empathy_chat_simple_view_get_last_contact     (EmpathyChatView *view);
+
+static void chat_view_iface_init         (EmpathyChatViewIface    *iface);
+G_DEFINE_TYPE_WITH_CODE (EmpathyChatSimpleView, empathy_chat_simple_view, GTK_TYPE_TEXT_VIEW,
+			 G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW,
+						chat_view_iface_init));
+
+static void
+empathy_chat_simple_view_class_init (EmpathyChatSimpleViewClass *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 (EmpathyChatSimpleViewPriv));
+}
+
+static void
+empathy_chat_simple_view_init (EmpathyChatSimpleView *view)
+{
+	gboolean             show_avatars;
+	EmpathyChatViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
+		EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv);
+
+	view->priv = priv;	
+	priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+	priv->last_timestamp = 0;
+	priv->allow_scrolling = TRUE;
+	
+	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 (), EMPATHY_CHAT_VIEW(view));
+	
+	show_avatars = FALSE;
+	empathy_conf_get_bool (empathy_conf_get (),
+			       EMPATHY_PREFS_UI_SHOW_AVATARS,
+			       &show_avatars);
+	
+	empathy_theme_set_show_avatars (priv->theme, 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),
+				 EMPATHY_CHAT_VIEW(view),
+				 0);
+}
+
+static void
+chat_view_finalize (GObject *object)
+{
+	EmpathyChatSimpleView     *view;
+	EmpathyChatSimpleViewPriv *priv;
+	
+	view = EMPATHY_CHAT_SIMPLE_VIEW (object);
+	priv = GET_PRIV (view);
+	
+	DEBUG ("%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);
+	}
+	
+	if (priv->theme) {
+		g_signal_handlers_disconnect_by_func (priv->theme,
+						      chat_view_theme_notify_cb,
+						      view);
+		g_object_unref (priv->theme);
+	}
+	
+	G_OBJECT_CLASS (empathy_chat_simple_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_SIMPLE_VIEW (widget));
+	
+	GTK_WIDGET_CLASS (empathy_chat_simple_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 (EmpathyChatSimpleView *view)
+{
+	EmpathyChatSimpleViewPriv *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),
+			  view);
+	
+	g_signal_connect (view,
+			  "motion-notify-event",
+			  G_CALLBACK (chat_view_event_cb),
+			  tag);
+}
+
+static void
+chat_view_system_font_update (EmpathyChatSimpleView *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)
+{
+	EmpathyChatSimpleView *view;
+	EmpathyChatSimpleViewPriv *priv;
+	gboolean        show_avatars = FALSE;
+	
+	view = user_data;
+	priv = GET_PRIV (view);
+	
+	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_set_show_avatars (priv->theme, show_avatars);
+}
+
+static void
+chat_view_notify_show_avatars_cb (EmpathyConf  *conf,
+				  const gchar *key,
+				  gpointer     user_data)
+{
+	EmpathyChatSimpleView     *view;
+	EmpathyChatSimpleViewPriv *priv;
+	gboolean            show_avatars = FALSE;
+	
+	view = user_data;
+	priv = GET_PRIV (view);
+	
+	empathy_conf_get_bool (conf, key, &show_avatars);
+	
+	empathy_theme_set_show_avatars (priv->theme, show_avatars);
+}
+
+static void
+chat_view_populate_popup (EmpathyChatSimpleView *view,
+			  GtkMenu        *menu,
+			  gpointer        user_data)
+{
+	EmpathyChatSimpleViewPriv *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 (EmpathyChatSimpleView *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,
+			EmpathyChatView *view)
+{
+	EmpathyChatViewPriv *priv;
+	GtkTextIter          start, end;
+	gchar               *str;
+
+	priv = GET_PRIV (view);
+
+	/* If the link is being selected, don't do anything. */
+	gtk_text_buffer_get_selection_bounds (priv->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 (priv->buffer,
+							    &start,
+							    &end,
+							    FALSE);
+			    
+			    empathy_url_show (GTK_WIDGET (view), str);
+			    g_free (str);
+		    }
+	}
+	
+	return FALSE;
+}
+
+static void
+chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
+{
+	empathy_url_show (GTK_WIDGET (menuitem), 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, EmpathyChatSimpleView *view)
+{
+	empathy_chat_simple_view_clear (EMPATHY_CHAT_VIEW(view));
+}
+
+static gboolean
+chat_view_is_scrolled_down (EmpathyChatSimpleView *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 (EmpathyChatSimpleView *view)
+{
+	EmpathyChatSimpleViewPriv *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_theme_changed_cb (EmpathyThemeManager *manager,
+			    EmpathyChatSimpleView     *view)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	gboolean            show_avatars = FALSE;
+	
+	priv = GET_PRIV (view);
+	
+	empathy_theme_manager_apply_saved (manager, view);	
+
+	/* 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_set_show_avatars (priv->theme, show_avatars);
+}
+
+EmpathyChatSimpleView *
+empathy_chat_simple_view_new (void)
+{
+	return g_object_new (EMPATHY_TYPE_CHAT_SIMPLE_VIEW, NULL);
+}
+
+/* Code stolen from pidgin/gtkimhtml.c */
+static gboolean
+chat_view_scroll_cb (EmpathyChatSimpleView *view)
+{
+	EmpathyChatSimpleViewPriv *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;
+	}
+	
+	/* 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_simple_view_scroll_down (EmpathyChatView *view)
+{
+	EmpathyChatSimpleViewPriv *priv = GET_PRIV (view);
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	
+	if (!priv->allow_scrolling) {
+		return;
+	}
+
+	DEBUG ("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);
+}
+
+void
+empathy_chat_simple_view_append_message (EmpathyChatView *view,
+					 EmpathyMessage  *msg)
+{
+	EmpathyChatSimpleViewPriv *priv = GET_PRIV (view);
+	gboolean             bottom;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
+	
+	if (!empathy_message_get_body (msg)) {
+		return;
+	}
+	
+	bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	chat_view_maybe_trim_buffer (EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	empathy_theme_append_message (priv->theme, EMPATHY_CHAT_VIEW(view), msg);
+	
+	if (bottom) {
+		empathy_chat_simple_view_scroll_down (view);
+	}
+	
+	if (priv->last_contact) {
+		g_object_unref (priv->last_contact);
+	}
+	priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
+}
+
+void
+empathy_chat_simple_view_append_event (EmpathyChatView *view,
+				       const gchar    *str)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	gboolean            bottom;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	g_return_if_fail (!G_STR_EMPTY (str));
+	
+	priv = GET_PRIV (view);
+	
+	bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	chat_view_maybe_trim_buffer (EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	empathy_theme_append_event (priv->theme, EMPATHY_CHAT_VIEW(view), str);
+	
+	if (bottom) {
+		empathy_chat_simple_view_scroll_down (view);
+	}
+	
+	if (priv->last_contact) {
+		g_object_unref (priv->last_contact);
+		priv->last_contact = NULL;
+	}
+}
+
+void
+empathy_chat_simple_view_append_button (EmpathyChatView *view,
+					const gchar    *message,
+					GtkWidget      *button1,
+					GtkWidget      *button2)
+{
+	EmpathyChatSimpleViewPriv   *priv;
+	GtkTextChildAnchor   *anchor;
+	GtkTextIter           iter;
+	gboolean              bottom;
+	const gchar          *tag;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	g_return_if_fail (button1 != NULL);
+	
+	priv = GET_PRIV (view);
+	
+	tag = "invite";
+	
+	bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	empathy_theme_append_timestamp (priv->theme, EMPATHY_CHAT_VIEW(view), NULL, TRUE, TRUE);
+	
+	if (message) {
+		empathy_theme_append_text (priv->theme, EMPATHY_CHAT_VIEW(view), message, tag, NULL);
+	}
+	
+	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);
+	}
+	
+	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_simple_view_scroll_down (EMPATHY_CHAT_VIEW(view));
+	}
+	
+	if (priv->last_contact) {
+		g_object_unref (priv->last_contact);
+		priv->last_contact = NULL;
+	}
+}
+
+void
+empathy_chat_simple_view_scroll (EmpathyChatView *view,
+				 gboolean        allow_scrolling)
+{
+	EmpathyChatSimpleViewPriv *priv = GET_PRIV (view);
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	
+	DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
+
+	priv->allow_scrolling = allow_scrolling;
+	if (allow_scrolling) {
+		empathy_chat_view_scroll_down (view);
+	}
+}
+
+gboolean
+empathy_chat_simple_view_get_selection_bounds (EmpathyChatView *view,
+					       GtkTextIter    *start,
+					       GtkTextIter    *end)
+{
+	GtkTextBuffer *buffer;
+	
+	g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), FALSE);
+	
+	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+	
+	return gtk_text_buffer_get_selection_bounds (buffer, start, end);
+}
+
+void
+empathy_chat_simple_view_clear (EmpathyChatView *view)
+{
+	GtkTextBuffer      *buffer;
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_timestamp = 0;
+}
+
+gboolean
+empathy_chat_simple_view_find_previous (EmpathyChatView *view,
+					const gchar    *search_criteria,
+					gboolean        new_search)
+{
+	EmpathyChatSimpleViewPriv *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_SIMPLE_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_simple_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);
+	}
+	
+	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;
+}
+
+gboolean
+empathy_chat_simple_view_find_next (EmpathyChatView *view,
+				    const gchar    *search_criteria,
+				    gboolean        new_search)
+{
+	EmpathyChatSimpleViewPriv *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_SIMPLE_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_simple_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);
+	}
+	
+	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;
+}
+
+
+void
+empathy_chat_simple_view_find_abilities (EmpathyChatView *view,
+					 const gchar    *search_criteria,
+					 gboolean       *can_do_previous,
+					 gboolean       *can_do_next)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	GtkTextBuffer      *buffer;
+	GtkTextIter         iter_at_mark;
+	GtkTextIter         iter_match_start;
+	GtkTextIter         iter_match_end;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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);
+	}
+}
+
+void
+empathy_chat_simple_view_highlight (EmpathyChatView *view,
+				    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_SIMPLE_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);
+	}
+}
+
+void
+empathy_chat_simple_view_copy_clipboard (EmpathyChatView *view)
+{
+	GtkTextBuffer *buffer;
+	GtkClipboard  *clipboard;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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);
+}
+
+EmpathyTheme *
+empathy_chat_simple_view_get_theme (EmpathyChatView *view)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), NULL);
+	
+	priv = GET_PRIV (view);
+	
+	return priv->theme;
+}
+
+static void
+chat_view_theme_notify_cb (EmpathyTheme    *theme,
+			   GParamSpec      *param,
+			   EmpathyChatSimpleView *view)
+{
+	empathy_theme_update_view (theme, EMPATHY_CHAT_VIEW(view));
+}
+
+void
+empathy_chat_simple_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	g_return_if_fail (EMPATHY_IS_THEME (theme));
+	
+	priv = GET_PRIV (view);
+	
+	if (priv->theme) {
+		g_signal_handlers_disconnect_by_func (priv->theme,
+						      chat_view_theme_notify_cb,
+						      EMPATHY_CHAT_SIMPLE_VIEW (view));
+		g_object_unref (priv->theme);
+	}
+	
+	priv->theme = g_object_ref (theme);
+	
+	empathy_theme_update_view (theme, view);
+	g_signal_connect (priv->theme, "notify",
+			  G_CALLBACK (chat_view_theme_notify_cb),
+			  EMPATHY_CHAT_SIMPLE_VIEW (view));
+	
+	/* FIXME: Redraw all messages using the new theme */
+}
+
+void
+empathy_chat_simple_view_set_margin (EmpathyChatView *view,
+				     gint            margin)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	
+	priv = GET_PRIV (view);
+	
+	g_object_set (view,
+		      "left-margin", margin,
+		      "right-margin", margin,
+		      NULL);
+}
+
+time_t
+empathy_chat_simple_view_get_last_timestamp (EmpathyChatView *view)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), 0);
+	
+	priv = GET_PRIV (view);
+	
+	return priv->last_timestamp;
+}
+
+void
+empathy_chat_simple_view_set_last_timestamp (EmpathyChatView *view,
+					     time_t          timestamp)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view));
+	
+	priv = GET_PRIV (view);
+	
+	priv->last_timestamp = timestamp;
+}
+
+EmpathyContact *
+empathy_chat_simple_view_get_last_contact (EmpathyChatView *view)
+{
+	EmpathyChatSimpleViewPriv *priv;
+	
+	g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), NULL);
+	
+	priv = GET_PRIV (view);
+	
+	return priv->last_contact;
+}
+
+static void
+chat_view_iface_init (EmpathyChatViewIface *iface)
+{
+	iface->append_message = empathy_chat_simple_view_append_message;
+	iface->append_event = empathy_chat_simple_view_append_event;
+	iface->append_button = empathy_chat_simple_view_append_button;
+	iface->set_margin = empathy_chat_simple_view_set_margin;
+	iface->scroll = empathy_chat_simple_view_scroll;
+	iface->scroll_down = empathy_chat_simple_view_scroll_down;
+	iface->get_selection_bounds = empathy_chat_simple_view_get_selection_bounds;
+	iface->clear = empathy_chat_simple_view_clear;
+	iface->find_previous = empathy_chat_simple_view_find_previous;
+	iface->find_next = empathy_chat_simple_view_find_next;
+	iface->find_abilities = empathy_chat_simple_view_find_abilities;
+	iface->highlight = empathy_chat_simple_view_highlight;
+	iface->copy_clipboard = empathy_chat_simple_view_copy_clipboard;
+	iface->get_theme = empathy_chat_simple_view_get_theme;
+	iface->set_theme = empathy_chat_simple_view_set_theme;
+	iface->get_last_timestamp = empathy_chat_simple_view_get_last_timestamp;
+	iface->set_last_timestamp = empathy_chat_simple_view_set_last_timestamp;
+	iface->get_last_contact = empathy_chat_simple_view_get_last_contact;
+}
+
diff --git a/libempathy-gtk/empathy-chat-simple-view.h b/libempathy-gtk/empathy-chat-simple-view.h
new file mode 100644
index 000000000..f633440ac
--- /dev/null
+++ b/libempathy-gtk/empathy-chat-simple-view.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2002-2007 Imendio AB
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * 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>
+ */
+
+#ifndef __EMPATHY_CHAT_SIMPLE_VIEW_H__
+#define __EMPATHY_CHAT_SIMPLE_VIEW_H__
+
+#include <gtk/gtktextview.h>
+
+#include <libempathy/empathy-contact.h>
+#include <libempathy/empathy-message.h>
+
+#include "empathy-chat-view.h"
+
+G_BEGIN_DECLS
+
+#define EMPATHY_TYPE_CHAT_SIMPLE_VIEW         (empathy_chat_simple_view_get_type ())
+#define EMPATHY_CHAT_SIMPLE_VIEW(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), EMPATHY_TYPE_CHAT_SIMPLE_VIEW, EmpathyChatSimpleView))
+#define EMPATHY_CHAT_SIMPLE_VIEW_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), EMPATHY_TYPE_CHAT_SIMPLE_VIEW, EmpathyChatViewClass))
+#define EMPATHY_IS_CHAT_SIMPLE_VIEW(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), EMPATHY_TYPE_CHAT_SIMPLE_VIEW))
+#define EMPATHY_IS_CHAT_SIMPLE_VIEW_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), EMPATHY_TYPE_CHAT_SIMPLE_VIEW))
+#define EMPATHY_CHAT_SIMPLE_VIEW_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), EMPATHY_TYPE_CHAT_SIMPLE_VIEW, EmpathyChatViewClass))
+
+typedef struct _EmpathyChatSimpleView      EmpathyChatSimpleView;
+typedef struct _EmpathyChatSimpleViewClass EmpathyChatSimpleViewClass;
+
+#include "empathy-theme.h"
+
+struct _EmpathyChatSimpleView {
+	GtkTextView parent;
+	gpointer priv;
+};
+
+struct _EmpathyChatSimpleViewClass {
+	GtkTextViewClass parent_class;
+};
+
+GType            empathy_chat_simple_view_get_type             (void) G_GNUC_CONST;
+EmpathyChatSimpleView *empathy_chat_simple_view_new                  (void);
+
+G_END_DECLS
+
+#endif /* __EMPATHY_CHAT_SIMPLE_VIEW_H__ */
diff --git a/libempathy-gtk/empathy-chat-view.c b/libempathy-gtk/empathy-chat-view.c
index 5adccaff0..4fccfb2ff 100644
--- a/libempathy-gtk/empathy-chat-view.c
+++ b/libempathy-gtk/empathy-chat-view.c
@@ -24,622 +24,56 @@
 
 #include "config.h"
 
-#include <sys/types.h>
-#include <string.h>
-#include <time.h>
-
-#include <glib/gi18n-lib.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 <telepathy-glib/util.h>
 #include <libmissioncontrol/mc-account.h>
 
 #include <libempathy/empathy-utils.h>
 
 #include "empathy-chat-view.h"
+
 #include "empathy-chat.h"
 #include "empathy-conf.h"
-#include "empathy-theme-manager.h"
 #include "empathy-ui-utils.h"
+
 #include "empathy-smiley-manager.h"
 
 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
 #include <libempathy/empathy-debug.h>
 
-/* 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) EMPATHY_GET_PRIV (obj, EmpathyChatView)
-typedef struct {
-	GtkTextBuffer *buffer;
-
-	EmpathyTheme   *theme;
-
-	time_t         last_timestamp;
-
-	gboolean       allow_scrolling;
-	guint          scroll_timeout;
-	GTimer        *scroll_time;
-
-	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;
-} EmpathyChatViewPriv;
-
-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,
-						      EmpathyChatView          *view);
-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 gboolean chat_view_is_scrolled_down           (EmpathyChatView           *view);
-static void     chat_view_theme_changed_cb           (EmpathyThemeManager       *manager,
-						      EmpathyChatView           *view);
-static void     chat_view_theme_notify_cb            (EmpathyTheme              *theme,
-						      GParamSpec                *param,
-						      EmpathyChatView           *view);
-
-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)
-{
-	gboolean             show_avatars;
-	EmpathyChatViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
-		EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv);
-
-	view->priv = priv;
-	priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
-	priv->last_timestamp = 0;
-	priv->allow_scrolling = TRUE;
-
-	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_set_show_avatars (priv->theme, 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);
-
-	DEBUG ("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);
-	}
-
-	if (priv->theme) {
-		g_signal_handlers_disconnect_by_func (priv->theme,
-						      chat_view_theme_notify_cb,
-						      view);
-		g_object_unref (priv->theme);
-	}
-
-	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),
-			  view);
-
-	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;
-	EmpathyChatViewPriv *priv;
-	gboolean        show_avatars = FALSE;
-
-	view = user_data;
-	priv = GET_PRIV (view);
-
-	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_set_show_avatars (priv->theme, 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_set_show_avatars (priv->theme, 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;
+static void chat_view_base_init (gpointer klass);
 
-	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)
+GType
+empathy_chat_view_get_type (void)
 {
-	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,
-			EmpathyChatView *view)
-{
-	GtkTextIter          start, end;
-	gchar               *str;
-	EmpathyChatViewPriv *priv;
-
-	priv = GET_PRIV (view);
-
-	/* If the link is being selected, don't do anything. */
-	gtk_text_buffer_get_selection_bounds (priv->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 (priv->buffer,
-							&start,
-							&end,
-							FALSE);
-
-			empathy_url_show (GTK_WIDGET (view), str);
-			g_free (str);
-		}
-	}
-
-	return FALSE;
-}
-
-static void
-chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
-{
-	empathy_url_show (GTK_WIDGET (menuitem), 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 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;
-		}
+	static GType type = 0;
+	
+	if (!type) {
+		static const GTypeInfo type_info = {
+			sizeof (EmpathyChatViewIface),
+			chat_view_base_init,
+			NULL,
+		};
+		
+		type = g_type_register_static (G_TYPE_INTERFACE,
+					       "EmpathyChatView",
+					       &type_info, 0);
+		
+		g_type_interface_add_prerequisite (type, G_TYPE_OBJECT);
 	}
-
-	return TRUE;
+	
+	return type;
 }
 
 static void
-chat_view_maybe_trim_buffer (EmpathyChatView *view)
+chat_view_base_init (gpointer klass)
 {
-	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 gboolean initialized = FALSE;
+	
+	if (!initialized) {
+		initialized = TRUE;
 	}
 }
 
-static void
-chat_view_theme_changed_cb (EmpathyThemeManager *manager,
-			    EmpathyChatView     *view)
-{
-	EmpathyChatViewPriv *priv;
-	gboolean            show_avatars = FALSE;
-
-	priv = GET_PRIV (view);
-
-	empathy_theme_manager_apply_saved (manager, view);
-
-	/* 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_set_show_avatars (priv->theme, show_avatars);
-}
-
 /* Pads a pixbuf to the specified size, by centering it in a larger transparent
  * pixbuf. Returns a new ref.
  */
@@ -733,64 +167,13 @@ empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact *contact)
 	return data->pixbuf;
 }
 
-EmpathyChatView *
-empathy_chat_view_new (void)
-{
-	return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
-}
-
-/* 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;
-	}
-
-	/* 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;
-	}
-
-	DEBUG ("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);
 	}
 }
 
@@ -798,464 +181,123 @@ void
 empathy_chat_view_append_message (EmpathyChatView *view,
 				  EmpathyMessage  *msg)
 {
-	EmpathyChatViewPriv *priv = GET_PRIV (view);
-	gboolean             bottom;
-
 	g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-	g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
-
-	if (!empathy_message_get_body (msg)) {
-		return;
-	}
-
-	bottom = chat_view_is_scrolled_down (view);
 	
-	chat_view_maybe_trim_buffer (view);
-
-	empathy_theme_append_message (priv->theme, view, msg);
-
-	if (bottom) {
-		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);
 	}
-
-	if (priv->last_contact) {
-		g_object_unref (priv->last_contact);
-	}
-	priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
 }
 
 void
 empathy_chat_view_append_event (EmpathyChatView *view,
-			       const gchar    *str)
+				const gchar    *str)
 {
-	EmpathyChatViewPriv *priv;
-	gboolean            bottom;
-
 	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);
-
-	empathy_theme_append_event (priv->theme, view, str);
-
-	if (bottom) {
-		empathy_chat_view_scroll_down (view);
-	}
-
-	if (priv->last_contact) {
-		g_object_unref (priv->last_contact);
-		priv->last_contact = NULL;
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_event) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_event (view,
+								       str);
 	}
 }
 
 void
 empathy_chat_view_append_button (EmpathyChatView *view,
-				const gchar    *message,
-				GtkWidget      *button1,
-				GtkWidget      *button2)
+				 const gchar    *message,
+				 GtkWidget      *button1,
+				 GtkWidget      *button2)
 {
-	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);
-
-	tag = "invite";
-
-	bottom = chat_view_is_scrolled_down (view);
-
-	empathy_theme_append_timestamp (priv->theme, view, NULL, TRUE, TRUE);
-
-	if (message) {
-		empathy_theme_append_text (priv->theme, view, message, tag, NULL);
-	}
-
-	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);
-	}
-
-	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);
-	}
-
-	if (priv->last_contact) {
-		g_object_unref (priv->last_contact);
-		priv->last_contact = NULL;
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_button) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->append_button (view, 
+									message,
+									button1,
+									button2);
 	}
 }
 
 void
 empathy_chat_view_scroll (EmpathyChatView *view,
-			 gboolean        allow_scrolling)
+			  gboolean        allow_scrolling)
 {
-	EmpathyChatViewPriv *priv = GET_PRIV (view);
-
 	g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-
-	DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
-
-	priv->allow_scrolling = allow_scrolling;
-	if (allow_scrolling) {
-		empathy_chat_view_scroll_down (view);
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->scroll (view, 
+								 allow_scrolling);
 	}
 }
 
 gboolean
 empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
-				       GtkTextIter    *start,
-				       GtkTextIter    *end)
+					GtkTextIter    *start,
+					GtkTextIter    *end)
 {
-	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_selection_bounds) {
+		return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_selection_bounds (view, 
+										      start, 
+										      end);
+	}
+	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_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);
 	}
 }
 
@@ -1263,124 +305,53 @@ void
 empathy_chat_view_highlight (EmpathyChatView *view,
 			     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);
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->copy_clipboard) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->copy_clipboard (view);
+	}
 }
 
 EmpathyTheme *
 empathy_chat_view_get_theme (EmpathyChatView *view)
 {
-	EmpathyChatViewPriv *priv;
-
 	g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
-
-	priv = GET_PRIV (view);
-
-	return priv->theme;
-}
-
-static void
-chat_view_theme_notify_cb (EmpathyTheme    *theme,
-			   GParamSpec      *param,
-			   EmpathyChatView *view)
-{
-	empathy_theme_update_view (theme, view);
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_theme) {
+		return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_theme (view);
+	}
+	return NULL;
 }
 
 void
 empathy_chat_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
 {
-	EmpathyChatViewPriv *priv;
-
 	g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-	g_return_if_fail (EMPATHY_IS_THEME (theme));
-
-	priv = GET_PRIV (view);
-
-	if (priv->theme) {
-		g_signal_handlers_disconnect_by_func (priv->theme,
-						      chat_view_theme_notify_cb,
-						      view);
-		g_object_unref (priv->theme);
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_theme) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_theme (view, theme);
 	}
-
-	priv->theme = g_object_ref (theme);
-
-	empathy_theme_update_view (theme, view);
-	g_signal_connect (priv->theme, "notify",
-			  G_CALLBACK (chat_view_theme_notify_cb),
-			  view);
-
-	/* FIXME: Redraw all messages using the new theme */
 }
 
 void
 empathy_chat_view_set_margin (EmpathyChatView *view,
-			     gint            margin)
+			      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);
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_margin) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_margin (view, margin);
+	}
 }
 
 GtkWidget *
@@ -1435,37 +406,33 @@ empathy_chat_view_get_smiley_menu (GCallback    callback,
 time_t
 empathy_chat_view_get_last_timestamp (EmpathyChatView *view)
 {
-	EmpathyChatViewPriv *priv;
-
 	g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
-
-	priv = GET_PRIV (view);
-
-	return priv->last_timestamp;
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_last_timestamp) {
+		return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_last_timestamp (view);
+	}
+	return 0;
 }
 
 void
 empathy_chat_view_set_last_timestamp (EmpathyChatView *view,
-				     time_t          timestamp)
+				      time_t          timestamp)
 {
-	EmpathyChatViewPriv *priv;
-
 	g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
-
-	priv = GET_PRIV (view);
-
-	priv->last_timestamp = timestamp;
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_last_timestamp) {
+		EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->set_last_timestamp (view, timestamp);
+	}
 }
 
 EmpathyContact *
 empathy_chat_view_get_last_contact (EmpathyChatView *view)
 {
-	EmpathyChatViewPriv *priv;
-
 	g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
-
-	priv = GET_PRIV (view);
-
-	return priv->last_contact;
+	
+	if (EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_last_contact) {
+		return EMPATHY_TYPE_CHAT_VIEW_GET_IFACE (view)->get_last_contact (view);
+	}
+	return NULL;
 }
 
diff --git a/libempathy-gtk/empathy-chat-view.h b/libempathy-gtk/empathy-chat-view.h
index 0c54abdc7..acbcc8bc5 100644
--- a/libempathy-gtk/empathy-chat-view.h
+++ b/libempathy-gtk/empathy-chat-view.h
@@ -34,27 +34,60 @@ G_BEGIN_DECLS
 
 #define EMPATHY_TYPE_CHAT_VIEW         (empathy_chat_view_get_type ())
 #define EMPATHY_CHAT_VIEW(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatView))
-#define EMPATHY_CHAT_VIEW_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewClass))
 #define EMPATHY_IS_CHAT_VIEW(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), EMPATHY_TYPE_CHAT_VIEW))
-#define EMPATHY_IS_CHAT_VIEW_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), EMPATHY_TYPE_CHAT_VIEW))
-#define EMPATHY_CHAT_VIEW_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewClass))
+#define EMPATHY_TYPE_CHAT_VIEW_GET_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewIface))
+#define empathy_chat_view_new(o)	EMPATHY_CHAT_VIEW(empathy_chat_simple_view_new(o))
 
 typedef struct _EmpathyChatView      EmpathyChatView;
-typedef struct _EmpathyChatViewClass EmpathyChatViewClass;
+typedef struct _EmpathyChatViewIface EmpathyChatViewIface;
 
 #include "empathy-theme.h"
 
-struct _EmpathyChatView {
-	GtkTextView parent;
-	gpointer priv;
-};
+struct _EmpathyChatViewIface {
+	GTypeInterface   base_iface;
+
+	/* VTabled */
+void             (*append_message)       (EmpathyChatView *view,
+							 EmpathyMessage  *msg);
+void             (*append_event)         (EmpathyChatView *view,
+							 const gchar     *str);
+void             (*append_button)        (EmpathyChatView *view,
+							 const gchar     *message,
+							 GtkWidget       *button1,
+							 GtkWidget       *button2);
+void             (*set_margin)           (EmpathyChatView *view,
+							 gint             margin);
+void             (*scroll)               (EmpathyChatView *view,
+							 gboolean         allow_scrolling);
+void             (*scroll_down)          (EmpathyChatView *view);
+gboolean         (*get_selection_bounds) (EmpathyChatView *view,
+							 GtkTextIter     *start,
+							 GtkTextIter     *end);
+void             (*clear)                (EmpathyChatView *view);
+gboolean         (*find_previous)        (EmpathyChatView *view,
+							 const gchar     *search_criteria,
+							 gboolean         new_search);
+gboolean         (*find_next)            (EmpathyChatView *view,
+							 const gchar     *search_criteria,
+							 gboolean         new_search);
+void             (*find_abilities)       (EmpathyChatView *view,
+							 const gchar     *search_criteria,
+							 gboolean        *can_do_previous,
+							 gboolean        *can_do_next);
+void             (*highlight)            (EmpathyChatView *view,
+							 const gchar     *text);
+void             (*copy_clipboard)       (EmpathyChatView *view);
+EmpathyTheme *   (*get_theme)            (EmpathyChatView *view);
+void             (*set_theme)            (EmpathyChatView *view,
+							 EmpathyTheme    *theme);
+time_t           (*get_last_timestamp)   (EmpathyChatView *view);
+void             (*set_last_timestamp)   (EmpathyChatView *view,
+							 time_t           timestamp);
+EmpathyContact * (*get_last_contact)     (EmpathyChatView *view);
 
-struct _EmpathyChatViewClass {
-	GtkTextViewClass parent_class;
 };
 
-GType            empathy_chat_view_get_type             (void) G_GNUC_CONST;
-EmpathyChatView *empathy_chat_view_new                  (void);
+GType    empathy_chat_view_get_type          (void) G_GNUC_CONST;
 void             empathy_chat_view_append_message       (EmpathyChatView *view,
 							 EmpathyMessage  *msg);
 void             empathy_chat_view_append_event         (EmpathyChatView *view,
@@ -98,4 +131,7 @@ GdkPixbuf *      empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact
 
 G_END_DECLS
 
+#include "empathy-chat-simple-view.h"
+
 #endif /* __EMPATHY_CHAT_VIEW_H__ */
+