/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/* nautilus-navigation-bar.c - Abstract navigation bar class

   Copyright (C) 2000 Eazel, Inc.

   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; see the file COPYING.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.

   Author: Maciej Stachowiak <mjs@eazel.com>
*/

#include <config.h>

#include "nautilus-navigation-bar.h"

#include <gtk/gtksignal.h>
#include <libnautilus-extensions/nautilus-gtk-macros.h>

enum {
	LOCATION_CHANGED,
	LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];

static void nautilus_navigation_bar_initialize_class (NautilusNavigationBarClass *class);
static void nautilus_navigation_bar_initialize       (NautilusNavigationBar      *bar);

NAUTILUS_DEFINE_CLASS_BOILERPLATE (NautilusNavigationBar, nautilus_navigation_bar, NAUTILUS_TYPE_GENEROUS_BIN)



NAUTILUS_IMPLEMENT_MUST_OVERRIDE_SIGNAL (nautilus_navigation_bar, set_location)

static void
destroy (GtkObject *object)
{
	NAUTILUS_CALL_PARENT_CLASS (GTK_OBJECT_CLASS, destroy, (object));
}

static void
nautilus_navigation_bar_initialize_class (NautilusNavigationBarClass *klass)
{
	GtkObjectClass *object_class;
	
	object_class = GTK_OBJECT_CLASS (klass);
	object_class->destroy = destroy;
	
	signals[LOCATION_CHANGED]
		= gtk_signal_new ("location_changed",
				  GTK_RUN_FIRST,
				  object_class->type,
				  GTK_SIGNAL_OFFSET (NautilusNavigationBarClass,
						     location_changed),
				  gtk_marshal_NONE__STRING,
				  GTK_TYPE_NONE, 1, GTK_TYPE_STRING);

	gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);

	NAUTILUS_ASSIGN_MUST_OVERRIDE_SIGNAL (klass, nautilus_navigation_bar, set_location);
}

static void
nautilus_navigation_bar_initialize (NautilusNavigationBar *bar)
{
}




/**
 * nautilus_navigation_bar_set_location
 * 
 * Change the location displayed in the navigation bar.
 * 
 * @bar: A NautilusNavigationBar.
 * @location: The uri that should be displayed.
 */
void
nautilus_navigation_bar_set_location (NautilusNavigationBar *bar,
				      const char *location)
{
	g_return_if_fail (NAUTILUS_IS_NAVIGATION_BAR (bar));

	(* NAUTILUS_NAVIGATION_BAR_CLASS (GTK_OBJECT (bar)->klass)->set_location) (bar, location);
}


void
nautilus_navigation_bar_location_changed (NautilusNavigationBar *bar,
					  const char *location)
{
	g_return_if_fail (NAUTILUS_IS_NAVIGATION_BAR (bar));

	gtk_signal_emit (GTK_OBJECT (bar),
			 signals[LOCATION_CHANGED],
			 location);
}