Panel
/* $Id$ */
							/* Copyright (c) 2011-2020 Pierre Pronchery <khorben@defora.org> */
							/* This file is part of DeforaOS Desktop Panel */
							/* 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, version 3 of the License.
							 *
							 * 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, see <http://www.gnu.org/licenses/>. */
							#include <stdlib.h>
							#include <string.h>
							#include <errno.h>
							#include <libintl.h>
							#include <System.h>
							#include "Panel/applet.h"
							#define _(string) gettext(string)
							#define N_(string) string
							/* Lock */
							/* private */
							/* types */
							typedef struct _PanelApplet
							{
								PanelAppletHelper * helper;
								GtkWidget * widget;
							} Lock;
							/* prototypes */
							static Lock * _lock_init(PanelAppletHelper * helper, GtkWidget ** widget);
							static void _lock_destroy(Lock * lock);
							/* callbacks */
							static void _lock_on_clicked(gpointer data);
							/* public */
							/* variables */
							PanelAppletDefinition applet =
							{
								N_("Lock screen"),
								"gnome-lockscreen",
								NULL,
								_lock_init,
								_lock_destroy,
								NULL,
								FALSE,
								TRUE
							};
							/* private */
							/* functions */
							/* lock_init */
							static Lock * _lock_init(PanelAppletHelper * helper, GtkWidget ** widget)
							{
								Lock * lock;
								GtkIconSize iconsize;
								GtkWidget * image;
								if((lock = malloc(sizeof(*lock))) == NULL)
								{
									error_set("%s: %s", applet.name, strerror(errno));
									return NULL;
								}
								lock->helper = helper;
								if(helper->lock_dialog == NULL)
								{
									error_set("%s: %s", applet.name, _("Locking is not allowed"));
									return NULL;
								}
								lock->widget = gtk_button_new();
								iconsize = panel_window_get_icon_size(helper->window);
								image = gtk_image_new_from_icon_name(applet.icon, iconsize);
								gtk_button_set_image(GTK_BUTTON(lock->widget), image);
								gtk_button_set_relief(GTK_BUTTON(lock->widget), GTK_RELIEF_NONE);
							#if GTK_CHECK_VERSION(2, 12, 0)
								gtk_widget_set_tooltip_text(lock->widget, _("Lock screen"));
							#endif
								g_signal_connect_swapped(lock->widget, "clicked", G_CALLBACK(
											_lock_on_clicked), helper);
								gtk_widget_show_all(lock->widget);
								*widget = lock->widget;
								return lock;
							}
							/* lock_destroy */
							static void _lock_destroy(Lock * lock)
							{
								gtk_widget_destroy(lock->widget);
								free(lock);
							}
							/* callbacks */
							/* lock_on_clicked */
							static void _lock_on_clicked(gpointer data)
							{
								PanelAppletHelper * helper = data;
								helper->lock(helper->panel);
							}
							