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/*
 * Copyright (C) 2000, 2001 Eazel Inc.
 * Copyright (C) 2003  Andrew Sobala <aes@gnome.org>
 * Copyright (C) 2005  Bastien Nocera <hadess@hadess.net>
 *
 * This library 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <config.h>
#include <string.h>
#include <glib/gi18n-lib.h>
#define GST_USE_UNSTABLE_API 1
#include <gst/gst.h>

#include "totem-properties-view.h"
#include "totem-gst-helpers.h"
#include <nautilus-extension.h>

#define WANT_MIME_TYPES 1
#include "totem-mime-types.h"

static GType tpp_type = 0;
static void property_page_provider_iface_init
	(NautilusPropertyPageProviderIface *iface);
static GList *totem_properties_get_pages
	(NautilusPropertyPageProvider *provider, GList *files);

static void
totem_properties_plugin_register_type (GTypeModule *module)
{
	const GTypeInfo info = {
		sizeof (GObjectClass),
		(GBaseInitFunc) NULL,
		(GBaseFinalizeFunc) NULL,
		(GClassInitFunc) NULL,
		NULL,
		NULL,
		sizeof (GObject),
		0,
		(GInstanceInitFunc) NULL
	};
	const GInterfaceInfo property_page_provider_iface_info = {
		(GInterfaceInitFunc)property_page_provider_iface_init,
		NULL,
		NULL
	};

	tpp_type = g_type_module_register_type (module, G_TYPE_OBJECT,
			"TotemPropertiesPlugin",
			&info, 0);
	g_type_module_add_interface (module,
			tpp_type,
			NAUTILUS_TYPE_PROPERTY_PAGE_PROVIDER,
			&property_page_provider_iface_info);
}

static void
property_page_provider_iface_init (NautilusPropertyPageProviderIface *iface)
{
	iface->get_pages = totem_properties_get_pages;
}

static gpointer
init_backend (gpointer data)
{
	gst_init (NULL, NULL);
	totem_gst_disable_display_decoders ();
	return NULL;
}

static GList *
totem_properties_get_pages (NautilusPropertyPageProvider *provider,
			     GList *files)
{
	static GOnce backend_inited = G_ONCE_INIT;
	NautilusFileInfo *file;
	char *uri;
	GtkWidget *page, *label;
	NautilusPropertyPage *property_page;
	guint i;
	gboolean found;

	/* only add properties page if a single file is selected */
	if (files == NULL || files->next != NULL)
		return NULL;
	file = files->data;

	/* only add the properties page to these mime types */
	found = FALSE;
	for (i = 0; mime_types[i] != NULL; i++) {
		if (nautilus_file_info_is_mime_type (file, mime_types[i])) {
			found = TRUE;
			break;
		}
	}
	if (found == FALSE)
		return NULL;

	/* okay, make the page, init'ing the backend first if necessary */
	g_once (&backend_inited, init_backend, NULL);

	uri = nautilus_file_info_get_uri (file);
	label = gtk_label_new (_("Audio/Video"));
	page = totem_properties_view_new (uri, label);
	g_free (uri);

	gtk_container_set_border_width (GTK_CONTAINER (page), 6);
	property_page = nautilus_property_page_new ("video-properties",
			label, page);

	return g_list_prepend (NULL, property_page);
}

/* --- extension interface --- */
void
nautilus_module_initialize (GTypeModule *module)
{
	/* set up translation catalog */
	bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");

	totem_properties_plugin_register_type (module);
	totem_properties_view_register_type (module);
}

void
nautilus_module_shutdown (void)
{
}

void
nautilus_module_list_types (const GType **types,
                            int          *num_types)
{
	static GType type_list[1];

	type_list[0] = tpp_type;
	*types = type_list;
	*num_types = G_N_ELEMENTS (type_list);
}