claws-mail/src/prefs_filtering.c

/*
 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
 * Copyright (C) 1999-2001 Hiroyuki Yamamoto
 *
 * 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 of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

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

#include "defs.h"

#include <glib.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "intl.h"
#include "main.h"
#include "prefs.h"
#include "prefs_matcher.h"
#include "prefs_filtering.h"
#include "prefs_common.h"
#include "mainwindow.h"
#include "foldersel.h"
#include "manage_window.h"
#include "inc.h"
#include "utils.h"
#include "gtkutils.h"
#include "alertpanel.h"
#include "folder.h"
#include "filtering.h"

static struct Filtering {
	GtkWidget *window;

	GtkWidget *ok_btn;
	GtkWidget *cond_entry;
	GtkWidget *action_list;
	GtkWidget *action_combo;
	GtkWidget *account_list;
	GtkWidget *account_combo;
	GtkWidget *dest_entry;
	GtkWidget *dest_btn;

	GtkWidget *cond_clist;
} filtering;

#define VSPACING		12
#define VSPACING_NARROW		4
#define DEFAULT_ENTRY_WIDTH	80
#define PREFSBUFSIZE		1024

/* widget creating functions */
static void prefs_filtering_create		(void);

static void prefs_filtering_set_dialog	(void);
static void prefs_filtering_set_list	(void);

/* callback functions */
/* static void prefs_filtering_select_dest_cb	(void); */
static void prefs_filtering_register_cb	(void);
static void prefs_filtering_substitute_cb	(void);
static void prefs_filtering_delete_cb	(void);
static void prefs_filtering_up		(void);
static void prefs_filtering_down		(void);
static void prefs_filtering_select		(GtkCList	*clist,
					 gint		 row,
					 gint		 column,
					 GdkEvent	*event);

static gint prefs_filtering_deleted	(GtkWidget	*widget,
					 GdkEventAny	*event,
					 gpointer	 data);
static void prefs_filtering_key_pressed	(GtkWidget	*widget,
					 GdkEventKey	*event,
					 gpointer	 data);
static void prefs_filtering_cancel		(void);
static void prefs_filtering_ok		(void);

static void prefs_filtering_condition_define	(void);
static gint prefs_filtering_clist_set_row(gint row, FilteringProp * prop);
static void prefs_filtering_select_dest(void);
static void prefs_filtering_action_select(GtkList *list,
					  GtkWidget *widget,
					  gpointer user_data);
static void prefs_filtering_reset_dialog(void);

enum {
	ACTION_MOVE = 0,
	ACTION_COPY = 1,
	ACTION_DELETE = 2,
	ACTION_MARK = 3,
	ACTION_UNMARK = 4,
	ACTION_MARK_AS_READ = 5,
	ACTION_MARK_AS_UNREAD = 6,
	ACTION_FORWARD = 7,
	ACTION_FORWARD_AS_ATTACHMENT =8
};

static gint get_sel_from_list(GtkList * list)
{
	gint row = 0;
	void * sel;
	GList * child;

	sel = list->selection->data;
	for(child = list->children ; child != NULL ;
	    child = g_list_next(child)) {
		if (child->data == sel)
			return row;
		row ++;
	}
	
	return row;
}

static gint get_account_id_from_list_id(gint list_id)
{
	GList * accounts;

	for (accounts = account_get_list() ; accounts != NULL;
	     accounts = accounts->next) {
		PrefsAccount *ac = (PrefsAccount *)accounts->data;

		if (list_id == 0)
			return ac->account_id;
		list_id--;
	}
	return 0;
}

static gint get_list_id_from_account_id(gint account_id)
{
	GList * accounts;
	gint list_id = 0;

	for (accounts = account_get_list() ; accounts != NULL;
	     accounts = accounts->next) {
		PrefsAccount *ac = (PrefsAccount *)accounts->data;

		if (account_id == ac->account_id)
			return list_id;
		list_id++;
	}
	return 0;
}

static gint prefs_filtering_get_matching_from_action(gint action_id)
{
	switch(action_id) {
	case ACTION_MOVE:
		return MATCHING_ACTION_MOVE;
	case ACTION_COPY:
		return MATCHING_ACTION_COPY;
	case ACTION_DELETE:
		return MATCHING_ACTION_DELETE;
	case ACTION_MARK:
		return MATCHING_ACTION_MARK;
	case ACTION_UNMARK:
		return MATCHING_ACTION_UNMARK;
	case ACTION_MARK_AS_READ:
		return MATCHING_ACTION_MARK_AS_READ;
	case ACTION_MARK_AS_UNREAD:
		return MATCHING_ACTION_MARK_AS_UNREAD;
	case ACTION_FORWARD:
		return MATCHING_ACTION_FORWARD;
	case ACTION_FORWARD_AS_ATTACHMENT:
		return MATCHING_ACTION_FORWARD_AS_ATTACHMENT;
	default:
		return -1;
	}
}

gchar * action_text [] = {
	"Move",	"Copy", "Delete",
	"Mark", "Unmark", "Mark as read", "Mark as unread",
	"Forward", "Forward as attachment"
};

void prefs_filtering_open(void)
{
	inc_autocheck_timer_remove();

	if (!filtering.window) {
		prefs_filtering_create();
	}

	manage_window_set_transient(GTK_WINDOW(filtering.window));
	gtk_widget_grab_focus(filtering.ok_btn);

	prefs_filtering_set_dialog();

	gtk_widget_show(filtering.window);
}

static void prefs_filtering_create(void)
{
	GtkWidget *window;
	GtkWidget *vbox;
	GtkWidget *ok_btn;
	GtkWidget *cancel_btn;
	GtkWidget *confirm_area;

	GtkWidget *vbox1;
	GtkWidget *hbox1;
	GtkWidget *reg_hbox;
	GtkWidget *arrow;
	GtkWidget *btn_hbox;

	GtkWidget *cond_label;
	GtkWidget *cond_entry;
	GtkWidget *cond_btn;
	GtkWidget *action_label;
	GtkWidget *action_list;
	GtkWidget *action_combo;
	GtkWidget *account_label;
	GtkWidget *account_list;
	GtkWidget *account_combo;
	GtkWidget *dest_label;
	GtkWidget *dest_entry;
	GtkWidget *dest_btn;

	GtkWidget *reg_btn;
	GtkWidget *subst_btn;
	GtkWidget *del_btn;

	GtkWidget *cond_hbox;
	GtkWidget *cond_scrolledwin;
	GtkWidget *cond_clist;

	GtkWidget *btn_vbox;
	GtkWidget *up_btn;
	GtkWidget *down_btn;

	GList *combo_items;
	gint i;

	GList *accounts;
	GList * cur;

	gchar *title[] = {_("Registered rules")};

	debug_print(_("Creating filtering setting window...\n"));

	window = gtk_window_new (GTK_WINDOW_DIALOG);
	gtk_container_set_border_width (GTK_CONTAINER (window), 8);
	gtk_window_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
	gtk_window_set_modal (GTK_WINDOW (window), TRUE);
	gtk_window_set_policy (GTK_WINDOW (window), FALSE, TRUE, FALSE);

	vbox = gtk_vbox_new (FALSE, 6);
	gtk_widget_show (vbox);
	gtk_container_add (GTK_CONTAINER (window), vbox);

	gtkut_button_set_create(&confirm_area, &ok_btn, _("OK"),
				&cancel_btn, _("Cancel"), NULL, NULL);
	gtk_widget_show (confirm_area);
	gtk_box_pack_end (GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
	gtk_widget_grab_default (ok_btn);

	gtk_window_set_title (GTK_WINDOW(window),
			      _("Filtering setting"));
	gtk_signal_connect (GTK_OBJECT(window), "delete_event",
			    GTK_SIGNAL_FUNC(prefs_filtering_deleted), NULL);
	gtk_signal_connect (GTK_OBJECT(window), "key_press_event",
			    GTK_SIGNAL_FUNC(prefs_filtering_key_pressed), NULL);
	gtk_signal_connect (GTK_OBJECT(window), "focus_in_event",
			    GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
	gtk_signal_connect (GTK_OBJECT(window), "focus_out_event",
			    GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
	gtk_signal_connect (GTK_OBJECT(ok_btn), "clicked",
			    GTK_SIGNAL_FUNC(prefs_filtering_ok), NULL);
	gtk_signal_connect (GTK_OBJECT(cancel_btn), "clicked",
			    GTK_SIGNAL_FUNC(prefs_filtering_cancel), NULL);

	vbox1 = gtk_vbox_new (FALSE, VSPACING);
	gtk_widget_show (vbox1);
	gtk_box_pack_start (GTK_BOX (vbox), vbox1, TRUE, TRUE, 0);
	gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);

	cond_label = gtk_label_new (_("Condition"));
	gtk_widget_show (cond_label);
	gtk_misc_set_alignment (GTK_MISC (cond_label), 0, 0.5);
	gtk_box_pack_start (GTK_BOX (vbox1), cond_label, FALSE, FALSE, 0);

	hbox1 = gtk_hbox_new (FALSE, VSPACING);
	gtk_widget_show (vbox1);
	gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, FALSE, 0);
	gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);

	cond_entry = gtk_entry_new ();
	gtk_widget_show (cond_entry);
	gtk_widget_set_usize (cond_entry, 300, -1);
	gtk_box_pack_start (GTK_BOX (hbox1), cond_entry, TRUE, TRUE, 0);

	cond_btn = gtk_button_new_with_label (_("Define ..."));
	gtk_widget_show (cond_btn);
	gtk_box_pack_start (GTK_BOX (hbox1), cond_btn, FALSE, FALSE, 0);
	gtk_signal_connect (GTK_OBJECT (cond_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_condition_define),
			    NULL);

	hbox1 = gtk_hbox_new (FALSE, VSPACING);
	gtk_widget_show (vbox1);
	gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, FALSE, 0);
	gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);

	action_label = gtk_label_new (_("Action"));
	gtk_widget_show (action_label);
	gtk_misc_set_alignment (GTK_MISC (action_label), 0, 0.5);
	gtk_box_pack_start (GTK_BOX (hbox1), action_label, FALSE, FALSE, 0);

	action_combo = gtk_combo_new ();
	gtk_widget_show (action_combo);
	gtk_widget_set_usize (action_combo, 200, -1);
	gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(action_combo)->entry),
			       FALSE);

	combo_items = NULL;

	for(i = 0 ; i < (gint) (sizeof(action_text) / sizeof(gchar *)) ;
	    i++) {
		combo_items = g_list_append(combo_items,
					    (gpointer) _(action_text[i]));
	}
	gtk_combo_set_popdown_strings(GTK_COMBO(action_combo), combo_items);

	g_list_free(combo_items);

	gtk_box_pack_start (GTK_BOX (hbox1), action_combo,
			    TRUE, TRUE, 0);
	action_list = GTK_COMBO(action_combo)->list;
	gtk_signal_connect (GTK_OBJECT (action_list), "select-child",
			    GTK_SIGNAL_FUNC (prefs_filtering_action_select),
			    NULL);

	/* accounts */

	hbox1 = gtk_hbox_new (FALSE, VSPACING);
	gtk_widget_show (vbox1);
	gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, FALSE, 0);
	gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);

	account_label = gtk_label_new (_("Account"));
	gtk_widget_show (account_label);
	gtk_misc_set_alignment (GTK_MISC (account_label), 0, 0.5);
	gtk_box_pack_start (GTK_BOX (hbox1), account_label, FALSE, FALSE, 0);

	account_combo = gtk_combo_new ();
	gtk_widget_show (account_combo);

	combo_items = NULL;
	for (accounts = account_get_list() ; accounts != NULL;
	     accounts = accounts->next) {
		PrefsAccount *ac = (PrefsAccount *)accounts->data;
		gchar *name;

		name = g_strdup_printf("%s <%s> (%s)",
				       ac->name, ac->address,
				       ac->account_name);
		combo_items = g_list_append(combo_items, (gpointer) name);
	}

	gtk_combo_set_popdown_strings(GTK_COMBO(account_combo), combo_items);

	for(cur = g_list_first(combo_items) ; cur != NULL ;
	    cur = g_list_next(cur))
		g_free(cur->data);
	g_list_free(combo_items);

	gtk_box_pack_start (GTK_BOX (hbox1), account_combo,
			    TRUE, TRUE, 0);
	account_list = GTK_COMBO(account_combo)->list;
	gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(account_combo)->entry),
			       FALSE);

	/* destination */

	hbox1 = gtk_hbox_new (FALSE, VSPACING);
	gtk_widget_show (vbox1);
	gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, FALSE, 0);
	gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);

	dest_label = gtk_label_new (_("Destination"));
	gtk_widget_show (dest_label);
	gtk_misc_set_alignment (GTK_MISC (dest_label), 0, 0.5);
	gtk_box_pack_start (GTK_BOX (hbox1), dest_label, FALSE, FALSE, 0);

	dest_entry = gtk_entry_new ();
	gtk_widget_show (dest_entry);
	gtk_widget_set_usize (dest_entry, 300, -1);
	gtk_box_pack_start (GTK_BOX (hbox1), dest_entry, TRUE, TRUE, 0);

	dest_btn = gtk_button_new_with_label (_("Select ..."));
	gtk_widget_show (dest_btn);
	gtk_box_pack_start (GTK_BOX (hbox1), dest_btn, FALSE, FALSE, 0);
	gtk_signal_connect (GTK_OBJECT (dest_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_select_dest),
			    NULL);

	/* register / substitute / delete */

	reg_hbox = gtk_hbox_new (FALSE, 4);
	gtk_widget_show (reg_hbox);
	gtk_box_pack_start (GTK_BOX (vbox1), reg_hbox, FALSE, FALSE, 0);

	arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
	gtk_widget_show (arrow);
	gtk_box_pack_start (GTK_BOX (reg_hbox), arrow, FALSE, FALSE, 0);
	gtk_widget_set_usize (arrow, -1, 16);

	btn_hbox = gtk_hbox_new (TRUE, 4);
	gtk_widget_show (btn_hbox);
	gtk_box_pack_start (GTK_BOX (reg_hbox), btn_hbox, FALSE, FALSE, 0);

	reg_btn = gtk_button_new_with_label (_("Register"));
	gtk_widget_show (reg_btn);
	gtk_box_pack_start (GTK_BOX (btn_hbox), reg_btn, FALSE, TRUE, 0);
	gtk_signal_connect (GTK_OBJECT (reg_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_register_cb), NULL);

	subst_btn = gtk_button_new_with_label (_(" Substitute "));
	gtk_widget_show (subst_btn);
	gtk_box_pack_start (GTK_BOX (btn_hbox), subst_btn, FALSE, TRUE, 0);
	gtk_signal_connect (GTK_OBJECT (subst_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_substitute_cb),
			    NULL);

	del_btn = gtk_button_new_with_label (_("Delete"));
	gtk_widget_show (del_btn);
	gtk_box_pack_start (GTK_BOX (btn_hbox), del_btn, FALSE, TRUE, 0);
	gtk_signal_connect (GTK_OBJECT (del_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_delete_cb), NULL);

	cond_hbox = gtk_hbox_new (FALSE, 8);
	gtk_widget_show (cond_hbox);
	gtk_box_pack_start (GTK_BOX (vbox1), cond_hbox, TRUE, TRUE, 0);

	cond_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
	gtk_widget_show (cond_scrolledwin);
	gtk_widget_set_usize (cond_scrolledwin, -1, 150);
	gtk_box_pack_start (GTK_BOX (cond_hbox), cond_scrolledwin,
			    TRUE, TRUE, 0);
	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (cond_scrolledwin),
					GTK_POLICY_AUTOMATIC,
					GTK_POLICY_AUTOMATIC);

	cond_clist = gtk_clist_new_with_titles(1, title);
	gtk_widget_show (cond_clist);
	gtk_container_add (GTK_CONTAINER (cond_scrolledwin), cond_clist);
	gtk_clist_set_column_width (GTK_CLIST (cond_clist), 0, 80);
	gtk_clist_set_selection_mode (GTK_CLIST (cond_clist),
				      GTK_SELECTION_BROWSE);
	GTK_WIDGET_UNSET_FLAGS (GTK_CLIST (cond_clist)->column[0].button,
				GTK_CAN_FOCUS);
	gtk_signal_connect (GTK_OBJECT (cond_clist), "select_row",
			    GTK_SIGNAL_FUNC (prefs_filtering_select), NULL);

	btn_vbox = gtk_vbox_new (FALSE, 8);
	gtk_widget_show (btn_vbox);
	gtk_box_pack_start (GTK_BOX (cond_hbox), btn_vbox, FALSE, FALSE, 0);

	up_btn = gtk_button_new_with_label (_("Up"));
	gtk_widget_show (up_btn);
	gtk_box_pack_start (GTK_BOX (btn_vbox), up_btn, FALSE, FALSE, 0);
	gtk_signal_connect (GTK_OBJECT (up_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_up), NULL);

	down_btn = gtk_button_new_with_label (_("Down"));
	gtk_widget_show (down_btn);
	gtk_box_pack_start (GTK_BOX (btn_vbox), down_btn, FALSE, FALSE, 0);
	gtk_signal_connect (GTK_OBJECT (down_btn), "clicked",
			    GTK_SIGNAL_FUNC (prefs_filtering_down), NULL);

	gtk_widget_show_all(window);

	filtering.window    = window;
	filtering.ok_btn = ok_btn;

	filtering.cond_entry = cond_entry;
	filtering.action_list = action_list;
	filtering.action_combo = action_combo;
	filtering.account_list = account_list;
	filtering.account_combo = account_combo;
	filtering.dest_entry = dest_entry;
	filtering.dest_btn = dest_btn;

	filtering.cond_clist   = cond_clist;
}

static void prefs_filtering_update_hscrollbar(void)
{
	gint optwidth = gtk_clist_optimal_column_width(GTK_CLIST(filtering.cond_clist), 0);
	gtk_clist_set_column_width(GTK_CLIST(filtering.cond_clist), 0, optwidth);
}

static void prefs_filtering_set_dialog(void)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	GSList *cur;
	
	gtk_clist_freeze(clist);
	gtk_clist_clear(clist);

	prefs_filtering_clist_set_row(-1, NULL);
	for(cur = prefs_filtering ; cur != NULL ; cur = g_slist_next(cur)) {
		FilteringProp * prop = (FilteringProp *) cur->data;

		prefs_filtering_clist_set_row(-1, prop);
	}

	prefs_filtering_update_hscrollbar();
	gtk_clist_thaw(clist);

	prefs_filtering_reset_dialog();
}

static void prefs_filtering_reset_dialog(void)
{
	gtk_list_select_item(GTK_LIST(filtering.action_list), 0);
	gtk_list_select_item(GTK_LIST(filtering.account_list), 0);
	gtk_entry_set_text(GTK_ENTRY(filtering.dest_entry), "");
	gtk_entry_set_text(GTK_ENTRY(filtering.cond_entry), "");
}

static void prefs_filtering_set_list(void)
{
	gint row = 1;
	FilteringProp *prop;
	GSList * cur;
	gchar * filtering_str;
	gchar * tmp;

	for(cur = prefs_filtering ; cur != NULL ; cur = g_slist_next(cur))
		filteringprop_free((FilteringProp *) cur->data);
	g_slist_free(prefs_filtering);
	prefs_filtering = NULL;

	while (gtk_clist_get_text(GTK_CLIST(filtering.cond_clist),
				  row, 0, &filtering_str)) {
		if (strcmp(filtering_str, _("(New)")) != 0) {
			tmp = filtering_str;
			prop = filteringprop_parse(&tmp);
			if (prop != NULL)
				prefs_filtering = g_slist_append(prefs_filtering,
							       prop);
		}
		row++;
	}
}

static gint prefs_filtering_clist_set_row(gint row, FilteringProp * prop)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	gchar * str;
	gchar *cond_str[1];

	if (prop == NULL) {
		cond_str[0] = _("(New)");
		return gtk_clist_append(clist, cond_str);
	}

	str = filteringprop_to_string(prop);
	if (str == NULL) {
		return -1;
	}
	cond_str[0] = str;

	if (row < 0)
		row = gtk_clist_append(clist, cond_str);
	else
		gtk_clist_set_text(clist, row, 0, cond_str[0]);
	g_free(str);

	return row;
}

static void prefs_filtering_condition_define_done(MatcherList * matchers)
{
	gchar * str;

	if (matchers == NULL)
		return;

	str = matcherlist_to_string(matchers);

	if (str != NULL) {
		gtk_entry_set_text(GTK_ENTRY(filtering.cond_entry), str);
		g_free(str);
	}
}

static void prefs_filtering_condition_define(void)
{
	gchar * cond_str;
	MatcherList * matchers = NULL;

	cond_str = gtk_entry_get_text(GTK_ENTRY(filtering.cond_entry));

	if (*cond_str != '\0') {
		gchar * tmp;
		
		tmp = cond_str;
		matchers = matcherlist_parse(&tmp);
		if (tmp == NULL)
			alertpanel_error(_("Match string is not valid."));
	}

	prefs_matcher_open(matchers, prefs_filtering_condition_define_done);

	if (matchers != NULL)
		matcherlist_free(matchers);
}


/* register / substitute delete buttons */


static FilteringProp * prefs_filtering_dialog_to_filtering(void)
{
	MatcherList * cond;
	gchar * cond_str;
	FilteringProp * prop;
	FilteringAction * action;
	gchar * tmp;
	gint list_id;
	gint action_id;
	gint action_type;
	gint account_id;
	gchar * destination;
	
	cond_str = gtk_entry_get_text(GTK_ENTRY(filtering.cond_entry));
	if (*cond_str == '\0') {
		alertpanel_error(_("Score is not set."));
		return NULL;
	}

	action_id = get_sel_from_list(GTK_LIST(filtering.action_list));
	action_type = prefs_filtering_get_matching_from_action(action_id);
	list_id = get_sel_from_list(GTK_LIST(filtering.account_list));
	account_id = get_account_id_from_list_id(list_id);

	switch (action_id) {
	case ACTION_MOVE:
	case ACTION_COPY:
	case ACTION_FORWARD:
	case ACTION_FORWARD_AS_ATTACHMENT:
		destination = gtk_entry_get_text(GTK_ENTRY(filtering.dest_entry));
		if (*destination == '\0') {
			alertpanel_error(_("Destination is not set."));
			return NULL;
		}
		break;
	default:
		destination = NULL;
		break;
	}
	
	action = filteringaction_new(action_type, account_id, destination);

	tmp = cond_str;
	cond = matcherlist_parse(&tmp);

	if (tmp == NULL) {
		alertpanel_error(_("Match string is not valid."));
		filteringaction_free(action);
		return NULL;
	}

	prop = filteringprop_new(cond, action);

	return prop;
}

static void prefs_filtering_register_cb(void)
{
	FilteringProp * prop;
	
	prop = prefs_filtering_dialog_to_filtering();
	if (prop == NULL)
		return;
	prefs_filtering_clist_set_row(-1, prop);

	filteringprop_free(prop);
	
	prefs_filtering_update_hscrollbar();
}

static void prefs_filtering_substitute_cb(void)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	gint row;
	FilteringProp * prop;
	
	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row == 0) return;

	prop = prefs_filtering_dialog_to_filtering();
	if (prop == NULL)
		return;
	prefs_filtering_clist_set_row(row, prop);

	filteringprop_free(prop);
	
	prefs_filtering_update_hscrollbar();
}

static void prefs_filtering_delete_cb(void)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	gint row;

	if (!clist->selection) return;
	row = GPOINTER_TO_INT(clist->selection->data);
	if (row == 0) return;

	if (alertpanel(_("Delete rule"),
		       _("Do you really want to delete this rule?"),
		       _("Yes"), _("No"), NULL) == G_ALERTALTERNATE)
		return;

	gtk_clist_remove(clist, row);

	prefs_filtering_update_hscrollbar();
}

static void prefs_filtering_up(void)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	gint row;

	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row > 1) {
		gtk_clist_row_move(clist, row, row - 1);
	}
}

static void prefs_filtering_down(void)
{
	GtkCList *clist = GTK_CLIST(filtering.cond_clist);
	gint row;

	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row > 0 && row < clist->rows - 1) {
		gtk_clist_row_move(clist, row, row + 1);
	}
}

static void prefs_filtering_select_set(FilteringProp * prop)
{
	FilteringAction * action;
	gchar * matcher_str;
	gint list_id;

	prefs_filtering_reset_dialog();

	action = prop->action;

	matcher_str = matcherlist_to_string(prop->matchers);
	if (matcher_str == NULL) {
		filteringprop_free(prop);
		return;
	}

	gtk_entry_set_text(GTK_ENTRY(filtering.cond_entry), matcher_str);

	if (action->destination)
		gtk_entry_set_text(GTK_ENTRY(filtering.dest_entry),
				   action->destination);
	else
		gtk_entry_set_text(GTK_ENTRY(filtering.dest_entry), "");

	switch(action->type) {
	case MATCHING_ACTION_MOVE:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_MOVE);
		break;
	case MATCHING_ACTION_COPY:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_COPY);
		break;
	case MATCHING_ACTION_DELETE:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_DELETE);
		break;
	case MATCHING_ACTION_MARK:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_MARK);
		break;
	case MATCHING_ACTION_UNMARK:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_UNMARK);
		break;
	case MATCHING_ACTION_MARK_AS_READ:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_MARK_AS_READ);
		break;
	case MATCHING_ACTION_MARK_AS_UNREAD:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_MARK_AS_UNREAD);
		break;
	case MATCHING_ACTION_FORWARD:
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_FORWARD);
		list_id = get_list_id_from_account_id(action->account_id);
		gtk_list_select_item(GTK_LIST(filtering.account_list),
				     list_id);
		break;
	case MATCHING_ACTION_FORWARD_AS_ATTACHMENT:
		list_id = get_list_id_from_account_id(action->account_id);
		gtk_list_select_item(GTK_LIST(filtering.action_list),
				     ACTION_FORWARD_AS_ATTACHMENT);
		gtk_list_select_item(GTK_LIST(filtering.account_list),
				     list_id);
		break;
	}

	g_free(matcher_str);
}

static void prefs_filtering_select(GtkCList *clist, gint row, gint column,
				GdkEvent *event)
{
	FilteringProp * prop;
	gchar * tmp;
	gchar * filtering_str;

	if (row == 0) {
		prefs_filtering_reset_dialog();
		return;
	}

        if (!gtk_clist_get_text(GTK_CLIST(filtering.cond_clist),
				row, 0, &filtering_str))
		return;
	
	tmp = filtering_str;
	prop = filteringprop_parse(&tmp);
	if (tmp == NULL)
		return;

	prefs_filtering_select_set(prop);

	filteringprop_free(prop);
}

static void prefs_filtering_select_dest(void)
{
	FolderItem *dest;

	dest = foldersel_folder_sel(NULL);
	if (!dest) return;

	gtk_entry_set_text(GTK_ENTRY(filtering.dest_entry), dest->path);
}

static void prefs_filtering_action_select(GtkList *list,
					  GtkWidget *widget,
					  gpointer user_data)
{
	gint value;

	value = get_sel_from_list(GTK_LIST(filtering.action_list));

	switch (value) {
	case ACTION_MOVE:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, TRUE);
		gtk_widget_show(filtering.dest_btn);
		break;
	case ACTION_COPY:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, TRUE);
		gtk_widget_show(filtering.dest_btn);
		break;
	case ACTION_DELETE:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, FALSE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_MARK:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, FALSE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_UNMARK:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, FALSE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_MARK_AS_READ:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, FALSE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_MARK_AS_UNREAD:
		gtk_widget_set_sensitive(filtering.account_combo, FALSE);
		gtk_widget_set_sensitive(filtering.dest_entry, FALSE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_FORWARD:
		gtk_widget_set_sensitive(filtering.account_combo, TRUE);
		gtk_widget_set_sensitive(filtering.dest_entry, TRUE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	case ACTION_FORWARD_AS_ATTACHMENT:
		gtk_widget_set_sensitive(filtering.account_combo, TRUE);
		gtk_widget_set_sensitive(filtering.dest_entry, TRUE);
		gtk_widget_hide(filtering.dest_btn);
		break;
	}
}

static gint prefs_filtering_deleted(GtkWidget *widget, GdkEventAny *event,
				 gpointer data)
{
	prefs_filtering_cancel();
	return TRUE;
}

static void prefs_filtering_key_pressed(GtkWidget *widget, GdkEventKey *event,
				     gpointer data)
{
	if (event && event->keyval == GDK_Escape)
		prefs_filtering_cancel();
}

static void prefs_filtering_ok(void)
{
	prefs_filtering_set_list();
	prefs_filtering_write_config();
	gtk_widget_hide(filtering.window);
}

static void prefs_filtering_cancel(void)
{
	prefs_filtering_read_config();
	gtk_widget_hide(filtering.window);
}