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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
 *
 * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
 *
 * 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.
 *
 */

#include "config.h"

#include <stdlib.h>
#include <stdio.h>

#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>

#include "gdm-display-factory.h"
#include "gdm-display-store.h"

#define GDM_DISPLAY_FACTORY_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_DISPLAY_FACTORY, GdmDisplayFactoryPrivate))

struct GdmDisplayFactoryPrivate
{
	GdmDisplayStore *display_store;
};

enum {
	LAST_SIGNAL
};

enum {
	PROP_0,
	PROP_DISPLAY_STORE,
};

static guint signals [LAST_SIGNAL] = { 0, };

static void	gdm_display_factory_class_init	(GdmDisplayFactoryClass *klass);
static void	gdm_display_factory_init	(GdmDisplayFactory      *factory);
static void	gdm_display_factory_finalize	(GObject	        *object);

G_DEFINE_ABSTRACT_TYPE (GdmDisplayFactory, gdm_display_factory, G_TYPE_OBJECT)

GQuark
gdm_display_factory_error_quark (void)
{
	static GQuark ret = 0;
	if (ret == 0) {
		ret = g_quark_from_static_string ("gdm_display_factory_error");
	}

	return ret;
}

GdmDisplayStore *
gdm_display_factory_get_display_store (GdmDisplayFactory *factory)
{
	g_return_val_if_fail (GDM_IS_DISPLAY_FACTORY (factory), NULL);

	return factory->priv->display_store;
}

gboolean
gdm_display_factory_start (GdmDisplayFactory *factory,
			   GError           **error)
{
	gboolean ret;

	g_return_val_if_fail (GDM_IS_DISPLAY_FACTORY (factory), FALSE);

	g_object_ref (factory);
	ret = GDM_DISPLAY_FACTORY_GET_CLASS (factory)->start (factory);
	g_object_unref (factory);

	return ret;
}

gboolean
gdm_display_factory_stop (GdmDisplayFactory *factory,
			  GError           **error)
{
	gboolean ret;

	g_return_val_if_fail (GDM_IS_DISPLAY_FACTORY (factory), FALSE);

	g_object_ref (factory);
	ret = GDM_DISPLAY_FACTORY_GET_CLASS (factory)->stop (factory);
	g_object_unref (factory);

	return ret;
}

static void
gdm_display_factory_set_display_store (GdmDisplayFactory *factory,
				       GdmDisplayStore   *display_store)
{
	if (factory->priv->display_store != NULL) {
		g_object_unref (factory->priv->display_store);
		factory->priv->display_store = NULL;
	}

	if (display_store != NULL) {
		factory->priv->display_store = g_object_ref (display_store);
	}
}

static void
gdm_display_factory_set_property (GObject      *object,
				  guint	        prop_id,
				  const GValue *value,
				  GParamSpec   *pspec)
{
	GdmDisplayFactory *self;

	self = GDM_DISPLAY_FACTORY (object);

	switch (prop_id) {
	case PROP_DISPLAY_STORE:
		gdm_display_factory_set_display_store (self, g_value_get_object (value));
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
gdm_display_factory_get_property (GObject    *object,
				  guint       prop_id,
				  GValue     *value,
				  GParamSpec *pspec)
{
	GdmDisplayFactory *self;

	self = GDM_DISPLAY_FACTORY (object);

	switch (prop_id) {
	case PROP_DISPLAY_STORE:
		g_value_set_object (value, self->priv->display_store);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
gdm_display_factory_class_init (GdmDisplayFactoryClass *klass)
{
	GObjectClass   *object_class = G_OBJECT_CLASS (klass);

	object_class->get_property = gdm_display_factory_get_property;
	object_class->set_property = gdm_display_factory_set_property;
	object_class->finalize = gdm_display_factory_finalize;

        g_object_class_install_property (object_class,
                                         PROP_DISPLAY_STORE,
                                         g_param_spec_object ("display-store",
							      "display store",
							      "display store",
							      GDM_TYPE_DISPLAY_STORE,
							      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));

	g_type_class_add_private (klass, sizeof (GdmDisplayFactoryPrivate));
}

static void
gdm_display_factory_init (GdmDisplayFactory *factory)
{
	factory->priv = GDM_DISPLAY_FACTORY_GET_PRIVATE (factory);
}

static void
gdm_display_factory_finalize (GObject *object)
{
	GdmDisplayFactory *factory;

	g_return_if_fail (object != NULL);
	g_return_if_fail (GDM_IS_DISPLAY_FACTORY (object));

	factory = GDM_DISPLAY_FACTORY (object);

	g_return_if_fail (factory->priv != NULL);

	G_OBJECT_CLASS (gdm_display_factory_parent_class)->finalize (object);
}