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/*
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *      Not Zed <notzed@lostzed.mmc.com.au>
 *      Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>

#include "em-search-context.h"
#include "filter/filter-rule.h"
#include "filter/filter-option.h"
#include "filter/filter-int.h"

static FilterElement *em_search_new_element(RuleContext *rc, const char *type);

static RuleContextClass *parent_class = NULL;

static void
em_search_context_finalise (GObject *obj)
{
        G_OBJECT_CLASS (parent_class)->finalize (obj);
}

static void
em_search_context_class_init (EMSearchContextClass *klass)
{
    parent_class = g_type_class_ref (RULE_TYPE_CONTEXT);

    ((GObjectClass *)klass)->finalize = em_search_context_finalise;
    ((RuleContextClass *)klass)->new_element = em_search_new_element;
}

static void
em_search_context_init (EMSearchContext *vc)
{
    rule_context_add_part_set ((RuleContext *)vc, "partset", filter_part_get_type (),
                   rule_context_add_part, rule_context_next_part);

    rule_context_add_rule_set ((RuleContext *)vc, "ruleset", filter_rule_get_type (),
                   rule_context_add_rule, rule_context_next_rule);

    ((RuleContext *)vc)->flags = RULE_CONTEXT_THREADING | RULE_CONTEXT_GROUPING;
}

GType
em_search_context_get_type (void)
{
    static GType type = 0;

    if (!type) {
        static const GTypeInfo info = {
            sizeof (EMSearchContextClass),
            NULL, /* base_class_init */
            NULL, /* base_class_finalize */
            (GClassInitFunc) em_search_context_class_init,
            NULL, /* class_finalize */
            NULL, /* class_data */
            sizeof (EMSearchContext),
            0,    /* n_preallocs */
            (GInstanceInitFunc) em_search_context_init,
        };

        type = g_type_register_static (RULE_TYPE_CONTEXT, "EMSearchContext", &info, 0);
    }

    return type;
}

/**
 * em_search_context_new:
 *
 * Create a new EMSearchContext object.
 *
 * Return value: A new #EMSearchContext object.
 **/
EMSearchContext *
em_search_context_new (void)
{
    return (EMSearchContext *) g_object_new (EM_SEARCH_TYPE_CONTEXT, NULL, NULL);
}

static FilterElement *
em_search_new_element(RuleContext *rc, const char *type)
{
    if (!strcmp (type, "system-flag")) {
        return (FilterElement *) filter_option_new ();
    } else if (!strcmp (type, "score")) {
        return (FilterElement *) filter_int_new_type("score", -3, 3);
    } else {
        return parent_class->new_element(rc, type);
    }
}