/*
An indicator to show information that is in messaging applications
that the user is using.

Copyright 2009 Canonical Ltd.

Authors:
    Ted Gould <ted@canonical.com>

This program is free software: you can redistribute it and/or modify it 
under the terms of the GNU General Public License version 3, as published 
by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranties of 
MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <glib/gi18n.h>
#include <gio/gdesktopappinfo.h>
#include "launcher-menu-item.h"

enum {
	NAME_CHANGED,
	LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

typedef struct _LauncherMenuItemPrivate LauncherMenuItemPrivate;
struct _LauncherMenuItemPrivate
{
	GAppInfo * appinfo;
};

#define LAUNCHER_MENU_ITEM_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), LAUNCHER_MENU_ITEM_TYPE, LauncherMenuItemPrivate))

/* Prototypes */
static void launcher_menu_item_class_init (LauncherMenuItemClass *klass);
static void launcher_menu_item_init       (LauncherMenuItem *self);
static void launcher_menu_item_dispose    (GObject *object);
static void launcher_menu_item_finalize   (GObject *object);
void activate_cb (LauncherMenuItem * self, gpointer data);


G_DEFINE_TYPE (LauncherMenuItem, launcher_menu_item, DBUSMENU_TYPE_MENUITEM);

static void
launcher_menu_item_class_init (LauncherMenuItemClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	g_type_class_add_private (klass, sizeof (LauncherMenuItemPrivate));

	object_class->dispose = launcher_menu_item_dispose;
	object_class->finalize = launcher_menu_item_finalize;

	signals[NAME_CHANGED] =  g_signal_new(LAUNCHER_MENU_ITEM_SIGNAL_NAME_CHANGED,
	                                      G_TYPE_FROM_CLASS(klass),
	                                      G_SIGNAL_RUN_LAST,
	                                      G_STRUCT_OFFSET (LauncherMenuItemClass, name_changed),
	                                      NULL, NULL,
	                                      g_cclosure_marshal_VOID__STRING,
	                                      G_TYPE_NONE, 1, G_TYPE_STRING);

	return;
}

static void
launcher_menu_item_init (LauncherMenuItem *self)
{
	g_debug("Building new Launcher Menu Item");
	LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(self);

	priv->appinfo = NULL;

	return;
}

static void
launcher_menu_item_dispose (GObject *object)
{
	// LauncherMenuItem * self = LAUNCHER_MENU_ITEM(object);
	// LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(self);

	G_OBJECT_CLASS (launcher_menu_item_parent_class)->dispose (object);
}

static void
launcher_menu_item_finalize (GObject *object)
{
	LauncherMenuItem * self = LAUNCHER_MENU_ITEM(object);
	LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(self);

	if (priv->appinfo != NULL) {
		g_object_unref(priv->appinfo);
	}

	G_OBJECT_CLASS (launcher_menu_item_parent_class)->finalize (object);

	return;
}

LauncherMenuItem *
launcher_menu_item_new (const gchar * desktop_file)
{
	LauncherMenuItem * self = g_object_new(LAUNCHER_MENU_ITEM_TYPE, NULL);
	g_debug("\tDesktop file: %s", desktop_file);

	LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(self);

	priv->appinfo = G_APP_INFO(g_desktop_app_info_new_from_filename(desktop_file));

	g_debug("\tName: %s", launcher_menu_item_get_name(self));
	dbusmenu_menuitem_property_set(DBUSMENU_MENUITEM(self), "label", launcher_menu_item_get_name(self));

	g_signal_connect(G_OBJECT(self), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(activate_cb), NULL);

	return self;
}

const gchar *
launcher_menu_item_get_name (LauncherMenuItem * appitem)
{
	LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(appitem);

	if (priv->appinfo == NULL) {
		return NULL;
	} else {
		return g_app_info_get_name(priv->appinfo);
	}
}

void
activate_cb (LauncherMenuItem * self, gpointer data)
{
	LauncherMenuItemPrivate * priv = LAUNCHER_MENU_ITEM_GET_PRIVATE(self);
	g_return_if_fail(priv->appinfo != NULL);

	GError * error = NULL;
	if (!g_app_info_launch(priv->appinfo, NULL, NULL, &error)) {
		g_warning("Application failed to launch '%s' because: %s", launcher_menu_item_get_name(self), error->message);
		g_error_free(error);
	}

	return;
}