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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2011 Perberos <perberos@gmail.com>
 *
 * 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, 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., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#ifndef __MATE_ABOUT_C__
#define __MATE_ABOUT_C__

#include "mate-about.h"

/* get text macro, this should be on the common macros. or not?
 */
#ifndef mate_gettext
#define mate_gettext(package, locale, codeset) \
	bindtextdomain(package, locale); \
	bind_textdomain_codeset(package, codeset); \
	textdomain(package);
#endif

	#if GTK_CHECK_VERSION(3, 0, 0) && !defined(UNIQUE)

	static void mate_about_on_activate(GtkApplication* app)
	{
		GList* list;
		GtkWidget* window;

		list = gtk_application_get_windows(app);

		if (list)
		{
			gtk_window_present(GTK_WINDOW(list->data));
		}
		else
		{
			mate_about_run();
		}
	}

	#elif GLIB_CHECK_VERSION(2, 26, 0) && !defined(UNIQUE)

	// callback
	static void mate_about_on_activate(GApplication* app)
	{
		if (!mate_about_dialog)
		{
			mate_about_run();
		}
		else
		{
			gtk_window_present(GTK_WINDOW(mate_about_dialog));
		}
	}

	#endif

	void mate_about_run(void)
	{
		mate_about_dialog = (MateAboutDialog*) mate_about_dialog_new();

		gtk_window_set_default_icon_name(desktop_icon);

		GtkIconTheme* icon_theme = gtk_icon_theme_get_default();

		if (gtk_icon_theme_has_icon(icon_theme, icon))
		{
			mate_about_dialog_set_logo_icon_name(mate_about_dialog, icon);
		}
		else
		{
			mate_about_dialog_set_logo_icon_name(mate_about_dialog, desktop_icon);
		}

		// name
		mate_about_dialog_set_program_name(mate_about_dialog, gettext(program_name));

		// version
		mate_about_dialog_set_version(mate_about_dialog, version);

		// credits and website
		mate_about_dialog_set_copyright(mate_about_dialog, copyright);
		mate_about_dialog_set_website(mate_about_dialog, website);

		/**
		 * This generate a random message.
		 * The comments index must not be more than comments_count - 1
		 */
		mate_about_dialog_set_comments(mate_about_dialog, gettext(comments_array[g_random_int_range(0, comments_count - 1)]));

		mate_about_dialog_set_authors(mate_about_dialog, authors);
		mate_about_dialog_set_artists(mate_about_dialog, artists);
		mate_about_dialog_set_documenters(mate_about_dialog, documenters);
		/* Translators should localize the following string which will be
		 * displayed in the about box to give credit to the translator(s). */
		mate_about_dialog_set_translator_credits(mate_about_dialog, _("translator-credits"));

		#ifdef USE_UNIQUE
			unique_app_watch_window(mate_about_application, (GtkWindow*) mate_about_dialog);
		#elif GTK_CHECK_VERSION(3, 0, 0) && !defined(UNIQUE)
			gtk_window_set_application(GTK_WINDOW(mate_about_dialog), mate_about_application);
		#endif

		// start and destroy
		gtk_dialog_run((GtkDialog*) mate_about_dialog);
		gtk_widget_destroy((GtkWidget*) mate_about_dialog);
	}

	int main(int argc, char** argv)
	{
		int status = 0;

		mate_gettext(GETTEXT_PACKAGE, LOCALE_DIR, "UTF-8");

		#if !GLIB_CHECK_VERSION (2, 36, 0)
		g_type_init();
		#endif

		/* http://www.gtk.org/api/2.6/glib/glib-Commandline-option-parser.html */
		GOptionContext* context = g_option_context_new(NULL);
		g_option_context_add_main_entries(context, command_entries, GETTEXT_PACKAGE);
		g_option_context_add_group(context, gtk_get_option_group(TRUE));
		g_option_context_parse(context, &argc, &argv, NULL);

		/* Not necesary at all, program just run and die.
		 * But it free a little memory. */
		g_option_context_free(context);

		if (mate_about_nogui == TRUE)
		{
			printf("%s %s\n", gettext(program_name), version);
		}
		else
		{
			gtk_init(&argc, &argv);

			/**
			 * Examples taken from:
			 * http://developer.gnome.org/gtk3/3.0/gtk-migrating-GtkApplication.html
			 */
			#ifdef USE_UNIQUE

				mate_about_application = unique_app_new("org.mate.about", NULL);

				if (unique_app_is_running(mate_about_application))
				{
					UniqueResponse response = unique_app_send_message(mate_about_application, UNIQUE_ACTIVATE, NULL);

					if (response != UNIQUE_RESPONSE_OK)
					{
						status = 1;
					}
				}
				else
				{
					mate_about_run();
				}

			#elif GTK_CHECK_VERSION(3, 0, 0) && !defined(USE_UNIQUE)

				mate_about_application = gtk_application_new("org.mate.about", 0);
				g_signal_connect(mate_about_application, "activate", G_CALLBACK(mate_about_on_activate), NULL);

				status = g_application_run(G_APPLICATION(mate_about_application), argc, argv);

				g_object_unref(mate_about_application);

			#elif GLIB_CHECK_VERSION(2, 26, 0) && !defined(USE_UNIQUE)

				mate_about_application = g_application_new("org.mate.about", G_APPLICATION_FLAGS_NONE);
				g_signal_connect(mate_about_application, "activate", G_CALLBACK(mate_about_on_activate), NULL);

				status = g_application_run(G_APPLICATION(mate_about_application), argc, argv);

				g_object_unref(mate_about_application);

			#else

				mate_about_run();

			#endif
		}

		return status;
	}

#endif