/* Gnome panel: Initialization routines
 * (C) 1997,1998,1999,2000 the Free Software Foundation
 * (C) 2000 Eazel, Inc.
 *
 * Authors: Federico Mena
 *          Miguel de Icaza
 *          George Lebl
 */

#include <config.h>
#include <string.h>
#include <signal.h>
#include <sys/wait.h>

#include <libgnome/libgnome.h>
#include <libgnomeui/libgnomeui.h>

#include <libbonoboui.h>
#include <bonobo-activation/bonobo-activation.h>

#include "drawer-widget.h"
#include "menu-fentry.h"
#include "menu.h"
#include "multiscreen-stuff.h"
#include "panel.h"
#include "panel-util.h"
#include "panel-gconf.h"
#include "panel-config-global.h"
#include "panel-shell.h"
#include "session.h"
#include "status.h"
#include "xstuff.h"

extern int config_sync_timeout;

extern GSList *panels;

extern GSList *applets;

extern gboolean commie_mode;
extern GlobalConfig global_config;

/*list of all panel widgets created*/
extern GSList *panel_list;

GtkTooltips *panel_tooltips = NULL;

GnomeClient *client = NULL;

char *kde_menudir = NULL;
char *kde_icondir = NULL;
char *kde_mini_icondir = NULL;

static gchar *profile_name;

static gboolean
menu_age_timeout(gpointer data)
{
	GSList *li;
	for(li=applets;li!=NULL;li=g_slist_next(li)) {
		AppletInfo *info = li->data;
		if(info->menu && info->menu_age++>=6 &&
		   !GTK_WIDGET_VISIBLE(info->menu)) {
			gtk_widget_unref(info->menu);
			info->menu = NULL;
			info->menu_age = 0;
		}
		/*if we are allowed to, don't destroy applet menus*/
		if(!global_config.keep_menus_in_memory &&
		   info->type == APPLET_MENU) {
			Menu *menu = info->data;
			if(menu->menu && menu->age++>=6 &&
			   !GTK_WIDGET_VISIBLE(menu->menu)) {
				gtk_widget_unref(menu->menu);
				menu->menu = NULL;
				menu->age = 0;
			}
		}
	}
	
	/*skip panel menus if we are memory hungry*/
	if(global_config.keep_menus_in_memory)
		return TRUE;
	
	for(li = panel_list; li != NULL; li = g_slist_next(li)) {
		PanelData *pd = li->data;
		if(pd->menu && pd->menu_age++>=6 &&
		   !GTK_WIDGET_VISIBLE(pd->menu)) {
			gtk_widget_unref(pd->menu);
			pd->menu = NULL;
			pd->menu_age = 0;
		}
	}

	return TRUE;
}

/* Note: similar function is in gnome-desktop-item !!! */

static void
find_kde_directory (void)
{
	int i;
	const char *kdedir = g_getenv ("KDEDIR");
	char *try_prefixes[] = {
		"/usr",
		"/opt/kde",
		"/usr/local",
		"/kde",
		NULL
	};
	if (kdedir != NULL) {
		kde_menudir = g_build_filename (kdedir, "share", "applnk", NULL);
		kde_icondir = g_build_filename (kdedir, "share", "icons", NULL);
		kde_mini_icondir = g_build_filename (kdedir, "share", "icons", "mini", NULL);
		return;
	}

	/* if what configure gave us works use that */
	if (g_file_test (KDE_MENUDIR, G_FILE_TEST_IS_DIR)) {
		kde_menudir = g_strdup (KDE_MENUDIR);
		kde_icondir = g_strdup (KDE_ICONDIR);
		kde_mini_icondir = g_strdup (KDE_MINI_ICONDIR);
		return;
	}

	for (i = 0; try_prefixes[i] != NULL; i++) {
		char *try;
		try = g_build_filename (try_prefixes[i], "share", "applnk", NULL);
		if (g_file_test (try, G_FILE_TEST_IS_DIR)) {
			kde_menudir = try;
			kde_icondir = g_build_filename (try_prefixes[i], "share", "icons", NULL);
			kde_mini_icondir = g_build_filename (try_prefixes[i], "share", "icons", "mini", NULL);
			return;
		}
		g_free(try);
	}

	/* absolute fallback, these don't exist, but we're out of options
	   here */
	kde_menudir = g_strdup (KDE_MENUDIR);
	kde_icondir = g_strdup (KDE_ICONDIR);
	kde_mini_icondir = g_strdup (KDE_MINI_ICONDIR);
}

static void
kill_free_drawers (void)
{
	GSList *li;
	GSList *to_destroy = NULL;
	
	for (li = panel_list; li != NULL; li = li->next) {
		PanelData *pd = li->data;
		if (DRAWER_IS_WIDGET (pd->panel) &&
		    PANEL_WIDGET (BASEP_WIDGET (pd->panel)->panel)->master_widget == NULL) {
			status_unparent (pd->panel);
			to_destroy = g_slist_prepend (to_destroy, pd->panel);
		}
	}

	g_slist_foreach (to_destroy, (GFunc)gtk_widget_destroy, NULL);
	g_slist_free (to_destroy);
}

static void
session_notify_global_changes (GConfClient *client, guint cnxn_id, GConfEntry *entry, gpointer user_data) {
	panel_session_init_global_config ();
}

static const struct poptOption options[] = {
  {"profile", '\0', POPT_ARG_STRING, &profile_name, 0, N_("Specify a profile name to load"), NULL},
  {NULL, '\0', 0, NULL, 0}
};


int
main(int argc, char **argv)
{
	bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
	textdomain (GETTEXT_PACKAGE);

	/*
	 * Let applets spew.
	 */
	putenv ("BONOBO_ACTIVATION_DEBUG_OUTPUT=1");

	gnome_program_init ("panel", VERSION,
			    LIBGNOMEUI_MODULE,
			    argc, argv,
			    GNOME_PARAM_POPT_TABLE, options,
			    GNOME_PROGRAM_STANDARD_PROPERTIES,
			    NULL);

	bonobo_activate ();
	
	if (profile_name == NULL) {
		/* FIXME: Do this properly. just a temporary hack */
		session_set_current_profile ("default");
	} else {
		session_set_current_profile (profile_name);
	}

	if (!panel_shell_register ())
		return -1;
	find_kde_directory();

	client = gnome_master_client ();

	/* FIXME - get the session stuff working properly */

	g_signal_connect (G_OBJECT (client), "save_yourself",
			  G_CALLBACK (panel_session_save), argv[0]);
	g_signal_connect (G_OBJECT (client), "die",
			  G_CALLBACK (panel_session_die), NULL);

	panel_tooltips = gtk_tooltips_new ();

	xstuff_init ();
	multiscreen_init ();

	panel_gconf_add_dir ("/apps/panel/global");
	panel_gconf_add_dir ("/desktop/gnome/menus");
	panel_gconf_notify_add ("/apps/panel/global", session_notify_global_changes, NULL);

	session_load ();	

	kill_free_drawers ();
	
	/*add forbidden lists to ALL panels*/
	g_slist_foreach (panels,
			 (GFunc)panel_widget_add_forbidden,
			 NULL);

	/*this will make the drawers be hidden for closed panels etc ...*/
	send_state_change ();

	panel_session_setup_config_sync ();

	/* add some timeouts */
	gtk_timeout_add (10*1000, menu_age_timeout, NULL);

	status_applet_create_offscreen ();

	gtk_main ();

	return 0;
}