path: root/widgets/misc/e-filter-bar.c

/*
 * 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:
 *      Michael Zucchi <notzed@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <string.h>

#include <libxml/tree.h>
#include <libxml/parser.h>

#include <glib/gi18n.h>

#include "e-dropdown-button.h"
#include "e-filter-bar.h"
#include "filter/rule-editor.h"

#define d(x)

enum {
    LAST_SIGNAL
};

/*static gint esb_signals [LAST_SIGNAL] = { 0, };*/

static ESearchBarClass *parent_class = NULL;

/* The arguments we take */
enum {
    PROP_0,
    PROP_QUERY,
    PROP_STATE
};


/* Callbacks.  */

static void rule_changed (FilterRule *rule, gpointer user_data);


/* rule editor thingy */
static void
rule_editor_destroyed (EFilterBar *efb, GObject *deadbeef)
{
    efb->save_dialog = NULL;
    e_search_bar_set_menu_sensitive (E_SEARCH_BAR (efb), E_FILTERBAR_SAVE_ID, TRUE);
}

/* FIXME: need to update the popup menu to match any edited rules, sigh */
static void
full_rule_editor_response (GtkWidget *dialog, gint response, gpointer data)
{
    EFilterBar *efb = data;

    if (response == GTK_RESPONSE_OK)
        rule_context_save (efb->context, efb->userrules);

    gtk_widget_destroy (dialog);
}

static void
rule_editor_response (GtkWidget *dialog, gint response, gpointer data)
{
    EFilterBar *efb = data;
    FilterRule *rule;

    if (response == GTK_RESPONSE_OK) {
        rule = g_object_get_data (G_OBJECT (dialog), "rule");
        if (rule) {
            if (!filter_rule_validate (rule))
                return;

            rule_context_add_rule (efb->context, rule);
            /* FIXME: check return */
            rule_context_save (efb->context, efb->userrules);
        }
    }

    gtk_widget_destroy (dialog);
}

static void
rule_advanced_response (GtkWidget *dialog, gint response, gpointer data)
{
    EFilterBar *efb = data;
    /* the below generates a compiler warning about incompatible pointer types */
    ESearchBar *esb = (ESearchBar *)efb;
    FilterRule *rule;

    if (response == GTK_RESPONSE_OK || response == GTK_RESPONSE_APPLY) {
        rule = g_object_get_data ((GObject *) dialog, "rule");
        if (rule) {
            GtkStyle *style = gtk_widget_get_default_style ();

            if (!filter_rule_validate (rule))
                return;

            efb->current_query = rule;
            g_object_ref (rule);

            gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
            gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
            gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
            gtk_widget_modify_base (esb->viewoption, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
            e_search_bar_set_text (esb,_("Advanced Search"));
            gtk_widget_set_sensitive (esb->clear_button, TRUE);

            g_signal_emit_by_name (efb, "search_activated");

            if (response == GTK_RESPONSE_APPLY) {
                if (!rule_context_find_rule (efb->context, rule->name, rule->source))
                    rule_context_add_rule (efb->context, rule);
                /* FIXME: check return */
                rule_context_save (efb->context, efb->userrules);
            }
        }
    } else {
        e_search_bar_set_item_id (esb, esb->last_search_option);
    }

    if (response != GTK_RESPONSE_APPLY)
        gtk_widget_destroy (dialog);
}

static void
dialog_rule_changed (FilterRule *fr, GtkWidget *dialog)
{
    gboolean sensitive;

    g_return_if_fail (dialog != NULL);

    sensitive = fr && fr->parts;
    gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_OK, sensitive);
    gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_APPLY, sensitive);
}

static void
do_advanced (ESearchBar *esb)
{
    EFilterBar *efb = (EFilterBar *)esb;

    d(printf("Advanced search!\n"));

    if (!efb->save_dialog && !efb->setquery) {
        GtkWidget *dialog, *w;
        FilterRule *rule;

        if (efb->current_query)
            rule = filter_rule_clone (efb->current_query);
        else {
            rule = filter_rule_new ();
            efb->current_query = rule;
        }

        w = filter_rule_get_widget (rule, efb->context);
        filter_rule_set_source (rule, FILTER_SOURCE_INCOMING);
        gtk_container_set_border_width (GTK_CONTAINER (w), 12);

        /* FIXME: get the toplevel window... */
        dialog = gtk_dialog_new_with_buttons (_("Advanced Search"), NULL, GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                              GTK_STOCK_SAVE, GTK_RESPONSE_APPLY,
                              GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                              GTK_STOCK_OK, GTK_RESPONSE_OK, NULL);

        efb->save_dialog = dialog;
        gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);

        gtk_window_set_resizable (GTK_WINDOW (dialog), TRUE);
        gtk_window_set_default_size (GTK_WINDOW (dialog), 600, 300);
        gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), 0);
        gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (dialog)->action_area), 12);

        gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), w, TRUE, TRUE, 0);

        g_object_ref (rule);
        g_object_set_data_full ((GObject *) dialog, "rule", rule, (GDestroyNotify) g_object_unref);

        g_signal_connect (rule, "changed", G_CALLBACK (dialog_rule_changed), dialog);
        dialog_rule_changed (rule, dialog);

        g_signal_connect (dialog, "response", G_CALLBACK (rule_advanced_response), efb);
        g_object_weak_ref ((GObject *) dialog, (GWeakNotify) rule_editor_destroyed, efb);

        e_search_bar_set_menu_sensitive (esb, E_FILTERBAR_SAVE_ID, FALSE);

        gtk_widget_show (dialog);
    }
}

static void
save_search_dialog (ESearchBar *esb)
{
    FilterRule *rule;
    gchar *name, *text;
    GtkWidget *dialog, *w;

    EFilterBar *efb = (EFilterBar *)esb;

    rule = filter_rule_clone (efb->current_query);
    text = e_search_bar_get_text (esb);
    name = g_strdup_printf ("%s %s", rule->name, text && text[0] ? text : "''");
    filter_rule_set_name (rule, name);
    g_free (text);
    g_free (name);

    w = filter_rule_get_widget (rule, efb->context);
    filter_rule_set_source (rule, FILTER_SOURCE_INCOMING);
    gtk_container_set_border_width (GTK_CONTAINER (w), 12);

    /* FIXME: get the toplevel window... */
    dialog = gtk_dialog_new_with_buttons (_("Save Search"), NULL, GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                          GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                          GTK_STOCK_OK, GTK_RESPONSE_OK, NULL);
    efb->save_dialog = dialog;
    gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), 0);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (dialog)->action_area), 12);

    gtk_window_set_default_size (GTK_WINDOW (dialog), 500, 300);

    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), w, TRUE, TRUE, 0);

    g_object_ref (rule);
    g_object_set_data_full ((GObject *) dialog, "rule", rule, (GDestroyNotify) g_object_unref);
    g_signal_connect (dialog, "response", G_CALLBACK (rule_editor_response), efb);
    g_object_weak_ref ((GObject *) dialog, (GWeakNotify) rule_editor_destroyed, efb);

    g_signal_connect (rule, "changed", G_CALLBACK (dialog_rule_changed), dialog);
    dialog_rule_changed (rule, dialog);

    e_search_bar_set_menu_sensitive (esb, E_FILTERBAR_SAVE_ID, FALSE);

    gtk_widget_show (dialog);
}

static void
menubar_activated (ESearchBar *esb, gint id, gpointer data)
{
    EFilterBar *efb = (EFilterBar *)esb;
    GtkWidget *dialog;
    GtkStyle *style;

    d(printf ("menubar activated!\n"));

    switch (id) {
    case E_FILTERBAR_EDIT_ID:
        if (!efb->save_dialog) {
            efb->save_dialog = dialog = (GtkWidget *) rule_editor_new (efb->context, FILTER_SOURCE_INCOMING, _("_Searches"));

            gtk_window_set_title (GTK_WINDOW (dialog), _("Searches"));
            g_signal_connect (dialog, "response", G_CALLBACK (full_rule_editor_response), efb);
            g_object_weak_ref ((GObject *) dialog, (GWeakNotify) rule_editor_destroyed, efb);
            gtk_widget_show (dialog);
        }
        break;
    case E_FILTERBAR_SAVE_ID:
        if (efb->current_query && !efb->save_dialog)
            save_search_dialog (esb);

        d(printf("Save menu\n"));
        break;
    case E_FILTERBAR_ADVANCED_ID:
        e_search_bar_set_item_id (esb, E_FILTERBAR_ADVANCED_ID);
        break;
    default:
        if (id >= efb->menu_base && id < efb->menu_base + efb->menu_rules->len) {
#if d(!)0
            GString *out = g_string_new ("");

            printf("Selected rule: %s\n", ((FilterRule *)efb->menu_rules->pdata[id - efb->menu_base])->name);
            filter_rule_build_code (efb->menu_rules->pdata[id - efb->menu_base], out);
            printf("query: '%s'\n", out->str);
            g_string_free (out, TRUE);
#endif
            efb->current_query = (FilterRule *)efb->menu_rules->pdata[id - efb->menu_base];

            efb->setquery = TRUE;
            e_search_bar_set_item_id (esb, E_FILTERBAR_ADVANCED_ID);
            efb->setquery = FALSE;

            /* saved searches activated */
            style = gtk_widget_get_default_style ();
            efb->setquery = TRUE;
            gtk_widget_modify_base (esb->entry , GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED] ));
            gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, &(style->text [GTK_STATE_SELECTED] ));
            gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, &(style->base [GTK_STATE_SELECTED] ));
            gtk_widget_modify_base (esb->viewoption, GTK_STATE_NORMAL, &(style->base [GTK_STATE_SELECTED] ));
            e_search_bar_set_text (esb,_("Advanced Search"));
            g_signal_emit_by_name (efb, "search_activated", NULL);
            efb->setquery = FALSE;
        } else {
            return;
        }
    }

    g_signal_stop_emission_by_name (esb, "menu_activated");
}

static void
option_changed (ESearchBar *esb, gpointer data)
{
    EFilterBar *efb = (EFilterBar *)esb;
    gint id = e_search_bar_get_item_id (esb);
    gchar *query;

    d(printf("option changed, id = %d, setquery = %s %d\n", id, efb->setquery ? "true" : "false", esb->block_search));

    if (efb->setquery)
        return;

    switch (id) {
    case E_FILTERBAR_SAVE_ID:
        /* Fixme */
        /* save_search_dialog (esb); */
        break;
    case E_FILTERBAR_ADVANCED_ID:
        d(printf ("do_advanced\n"));
        if (!esb->block_search)
            do_advanced (esb);
        break;
    default:
        if (id >= efb->option_base && id < efb->option_base + efb->option_rules->len) {
            efb->current_query = (FilterRule *)efb->option_rules->pdata[id - efb->option_base];
            if (efb->config && efb->current_query) {
                query = e_search_bar_get_text (esb);
                efb->config (efb, efb->current_query, id, query, efb->config_data);
                g_free (query);
            }
        } else {
            gtk_widget_modify_base (esb->entry, GTK_STATE_NORMAL, NULL);
            gtk_widget_modify_text (esb->entry, GTK_STATE_NORMAL, NULL);
            gtk_widget_modify_base (esb->icon_entry, GTK_STATE_NORMAL, NULL);
            efb->current_query = NULL;
            gtk_entry_set_text ((GtkEntry *)esb->entry, "");
        }
    }
}

static void
dup_item_no_subitems (ESearchBarItem *dest,
              const ESearchBarItem *src)
{
    dest->id = src->id;
    dest->text = g_strdup (src->text);
    dest->type = src->type;
}

static GArray *
build_items (ESearchBar *esb, ESearchBarItem *items, gint type, gint *start, GPtrArray *rules)
{
    FilterRule *rule = NULL;
    EFilterBar *efb = (EFilterBar *)esb;
    gint id = 0, i;
    GArray *menu = g_array_new (FALSE, FALSE, sizeof (ESearchBarItem));
    ESearchBarItem item = { NULL, -1, 2 };
    const gchar *source;
    GSList *gtksux = NULL;
    gint num;

    for (i=0;i<rules->len;i++)
        gtksux = g_slist_prepend(gtksux, rules->pdata[i]);

    g_ptr_array_set_size(rules, 0);

    /* find a unique starting point for the id's of our items */
    for (i = 0; items[i].id != -1; i++) {
        ESearchBarItem dup_item = { NULL, -1, 2 };

        if (items[i].id >= id)
            id = items[i].id + 1;

        dup_item_no_subitems (&dup_item, items + i);
        g_array_append_vals (menu, &dup_item, 1);
    }

    *start = id;

    if (type == 0) {
        source = FILTER_SOURCE_INCOMING;

        /* Add a separator if there is at least one custom rule.  */
        if (rule_context_next_rule (efb->context, rule, source) != NULL) {
            item.id = 0;
            item.text = NULL;
            item.type = 0;
            g_array_append_vals (menu, &item, 1);
        }
    } else {
        source = FILTER_SOURCE_DEMAND;
    }

    num = 1;
    while ((rule = rule_context_next_rule (efb->context, rule, source))) {
        item.id = id++;

        if (type == 0 && num <= 10) {
            item.text = g_strdup_printf ("_%d. %s", num % 10, rule->name);
            num ++;
        } else {
            item.text = g_strdup (rule->name);
        }
        g_array_append_vals (menu, &item, 1);

        if (g_slist_find(gtksux, rule) == NULL) {
            g_object_ref (rule);
            g_signal_connect (rule, "changed", G_CALLBACK (rule_changed), efb);
        } else {
            gtksux = g_slist_remove(gtksux, rule);
        }
        g_ptr_array_add (rules, rule);
    }

    /* anything elft in gtksux has gone away, and we need to unref/disconnect from it */
    while (gtksux) {
        GSList *next;

        next = gtksux->next;
        rule = gtksux->data;

        g_signal_handlers_disconnect_by_func (rule, G_CALLBACK (rule_changed), efb);
        g_object_unref (rule);

        g_slist_free_1(gtksux);
        gtksux = next;
    }

    /* always add on the advanced menu */
    if (type == 1) {
        ESearchBarItem sb_items[2] = { E_FILTERBAR_SEPARATOR, E_FILTERBAR_ADVANCED,
                           /* E_FILTERBAR_SEPARATOR, E_FILTERBAR_SAVE */ };
        ESearchBarItem dup_items[2];

        dup_item_no_subitems (&dup_items[0], &sb_items[0]);
        dup_item_no_subitems (&dup_items[1], &sb_items[1]);
        /* dup_item_no_subitems (&dup_items[2], &sb_items[2]); */
        /* dup_item_no_subitems (&dup_items[3], &sb_items[3]); */
        g_array_append_vals (menu, &dup_items, 2);
    }

    item.id = -1;
    item.text = NULL;
    g_array_append_vals (menu, &item, 1);

    return menu;
}

static void
free_built_items (GArray *menu)
{
    gint i;

    for (i = 0; i < menu->len; i ++) {
        ESearchBarItem *item;

        item = & g_array_index (menu, ESearchBarItem, i);
        g_free (item->text);
    }

    g_array_free (menu, TRUE);
}

static void
generate_menu (ESearchBar *esb, ESearchBarItem *items)
{
    EFilterBar *efb = (EFilterBar *)esb;
    GArray *menu;

    menu = build_items (esb, items, 0, &efb->menu_base, efb->menu_rules);
    ((ESearchBarClass *)parent_class)->set_menu (esb, (ESearchBarItem *)menu->data);
    free_built_items (menu);
}

static void
free_items (ESearchBarItem *items)
{
    gint i;

    for (i = 0; items[i].id != -1; i++)
        g_free (items[i].text);


    g_free (items);
}

/* Virtual methods */
static void
set_menu (ESearchBar *esb, ESearchBarItem *items)
{
    EFilterBar *efb = E_FILTER_BAR (esb);
    ESearchBarItem *default_items;
    gint i, num;

    if (efb->default_items)
        free_items (efb->default_items);

    for (num = 0; items[num].id != -1; num++)
        ;

    default_items = g_new (ESearchBarItem, num + 1);
    for (i = 0; i < num + 1; i++) {
        default_items[i].text = g_strdup (items[i].text);
        default_items[i].id = items[i].id;
        default_items[i].type = items[i].type;
    }

    efb->default_items = default_items;

    generate_menu (esb, default_items);
}

static void
set_option (ESearchBar *esb, ESearchBarItem *items)
{
    GArray *menu;
    EFilterBar *efb = (EFilterBar *)esb;

    menu = build_items (esb, items, 1, &efb->option_base, efb->option_rules);
    ((ESearchBarClass *)parent_class)->set_option (esb, (ESearchBarItem *)menu->data);
    free_built_items (menu);

    e_search_bar_set_item_id (esb, efb->option_base);
}

static void
context_changed (RuleContext *context, gpointer user_data)
{
    EFilterBar *efb = E_FILTER_BAR (user_data);
    ESearchBar *esb = E_SEARCH_BAR (user_data);

    /* just generate whole menu again */
    generate_menu (esb, efb->default_items);
}

static void
context_rule_removed (RuleContext *context, FilterRule *rule, gpointer user_data)
{
    EFilterBar *efb = E_FILTER_BAR (user_data);
    ESearchBar *esb = E_SEARCH_BAR (user_data);

    /* just generate whole menu again */
    generate_menu (esb, efb->default_items);
}

static void
rule_changed (FilterRule *rule, gpointer user_data)
{
    EFilterBar *efb = E_FILTER_BAR (user_data);
    ESearchBar *esb = E_SEARCH_BAR (user_data);

    /* just generate whole menu again */
    generate_menu (esb, efb->default_items);
}


/* GtkObject methods.  */

static void
get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
{
    EFilterBar *efb = (EFilterBar *) object;
    ESearchBar *esb = E_SEARCH_BAR (object);

    switch (property_id) {
    case PROP_QUERY: {
        gchar *text = e_search_bar_get_text (E_SEARCH_BAR (efb));

        /* empty search text means searching turned off */
        if (efb->current_query && text && *text) {
            GString *out = g_string_new ("");

            filter_rule_build_code (efb->current_query, out);
            g_value_take_string (value, out->str);
            g_string_free (out, FALSE);
        } else {
            g_value_set_string (value, NULL);
        }

        g_free (text);
        break; }
    case PROP_STATE: {
        /* FIXME: we should have ESearchBar save its own state to the xmlDocPtr */
        xmlChar *xmlbuf;
        gchar *text, buf[12];
        gint searchscope, item_id, n, view_id;
        xmlNodePtr root, node;
        xmlDocPtr doc;

        item_id = e_search_bar_get_item_id ((ESearchBar *) efb);

        doc = xmlNewDoc ((const guchar *)"1.0");
        root = xmlNewDocNode (doc, NULL, (const guchar *)"state", NULL);
        xmlDocSetRootElement (doc, root);
        searchscope = e_search_bar_get_search_scope ((ESearchBar *) efb);
        view_id = e_search_bar_get_viewitem_id ((ESearchBar *) efb);

        if (searchscope < E_FILTERBAR_CURRENT_FOLDER_ID)
            item_id = esb->last_search_option;

        if (item_id == E_FILTERBAR_ADVANCED_ID) {
            /* advanced query, save the filterbar state */
            node = xmlNewChild (root, NULL, (const guchar *)"filter-bar", NULL);

            sprintf (buf, "%d", esb->last_search_option);
            xmlSetProp (node, (const guchar *)"item_id", (guchar *)buf);
            sprintf (buf, "%d", searchscope);
            xmlSetProp (node, (const guchar *)"searchscope", (guchar *)buf);
            sprintf (buf, "%d", view_id);
            xmlSetProp (node, (const guchar *)"view_id", (guchar *)buf);

            xmlAddChild (node, filter_rule_xml_encode (efb->current_query));
        } else {
            /* simple query, save the searchbar state */
            text = e_search_bar_get_text ((ESearchBar *) efb);

            node = xmlNewChild (root, NULL, (const guchar *)"search-bar", NULL);
            xmlSetProp (node, (const guchar *)"text", (guchar *)(text ? text : ""));
            sprintf (buf, "%d", item_id);
            xmlSetProp (node, (const guchar *)"item_id", (guchar *)buf);
            sprintf (buf, "%d", searchscope);
            xmlSetProp (node, (const guchar *)"searchscope", (guchar *)buf);
            sprintf (buf, "%d", view_id);
            xmlSetProp (node, (const guchar *)"view_id", (guchar *)buf);
            g_free (text);
        }

        xmlDocDumpMemory (doc, &xmlbuf, &n);
        xmlFreeDoc (doc);

        /* remap to glib memory */
        text = g_malloc (n + 1);
        memcpy (text, (gchar *)xmlbuf, n);
        text[n] = '\0';
        xmlFree (xmlbuf);

        g_value_take_string (value, text);

        break; }
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        break;
    }
}

static int
xml_get_prop_int (xmlNodePtr node, const gchar *prop)
{
    gchar *buf;
    gint ret;

    if ((buf = (gchar *)xmlGetProp (node, (guchar *)prop))) {
        ret = strtol (buf, NULL, 10);
        xmlFree (buf);
    } else {
        ret = -1;
    }

    return ret;
}

static void
set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
{
    EFilterBar *efb = (EFilterBar *) object;
    ESearchBar *esb = E_SEARCH_BAR (object);
    xmlNodePtr root, node;
    const gchar *state;
    xmlDocPtr doc;
    gboolean rule_set = FALSE, is_cur_folder=FALSE;
    gint view_id, scope, item_id;

    switch (property_id) {
    case PROP_STATE:
        if ((state = g_value_get_string (value))) {
            if (!(doc = xmlParseDoc ((guchar *) state)))
                return;

            root = doc->children;
            if (strcmp ((gchar *)root->name, "state") != 0) {
                xmlFreeDoc (doc);
                return;
            }

            node = root->children;
            while (node != NULL) {
                if (!strcmp ((gchar *)node->name, "filter-bar")) {
                    FilterRule *rule = NULL;


                    view_id = xml_get_prop_int (node, "view_id");
                    scope = xml_get_prop_int (node, "searchscope");
                    item_id = xml_get_prop_int (node, "item_id");
                    if (item_id == -1)
                        item_id = 0;

                    if (scope == E_FILTERBAR_CURRENT_FOLDER_ID)
                        is_cur_folder = TRUE;

                    if ((node = node->children)) {
                        GtkStyle *style = gtk_widget_get_default_style ();

                        rule = filter_rule_new ();
                        if (filter_rule_xml_decode (rule, node, efb->context) != 0) {
                            gtk_widget_modify_base (E_SEARCH_BAR (efb)->entry, GTK_STATE_NORMAL, NULL);
                            gtk_widget_modify_text (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, NULL);
                            gtk_widget_modify_base (((ESearchBar *)efb)->icon_entry, GTK_STATE_NORMAL, NULL);
                            g_object_unref (rule);
                            rule = NULL;
                        } else {
                            rule_set = TRUE;
                            gtk_widget_set_sensitive (esb->clear_button, TRUE);
                            gtk_widget_modify_base (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                            gtk_widget_modify_text (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
                            gtk_widget_modify_base (((ESearchBar *)efb)->icon_entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                            gtk_widget_modify_base (((ESearchBar *)efb)->viewoption, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                            g_object_set_data_full (object, "rule", rule, (GDestroyNotify) g_object_unref);
                        }
                    }


                    if (rule_set) {
                        esb->block_search = TRUE;
                        e_search_bar_set_text (esb, _("Advanced Search"));
                        e_search_bar_set_item_menu ((ESearchBar *) efb, item_id);
                        e_search_bar_set_search_scope ((ESearchBar *) efb, scope);
                        esb->block_search = FALSE;
                        efb->current_query = (FilterRule *)efb->option_rules->pdata[item_id - efb->option_base];
                        if (efb->config && efb->current_query) {
                            gchar *query = e_search_bar_get_text (esb);
                            efb->config (efb, efb->current_query, item_id, query, efb->config_data);
                            g_free (query);

                        }
                    }
                    e_search_bar_set_viewitem_id ((ESearchBar *) efb, view_id);
                    efb->current_query = rule;
                    efb->setquery = TRUE;
                    e_search_bar_set_item_id ((ESearchBar *) efb, E_FILTERBAR_ADVANCED_ID);
                    efb->setquery = FALSE;

                    break;
                } else if (!strcmp ((gchar *)node->name, "search-bar")) {
                    gint subitem_id, item_id, scope, view_id;
                    gchar *text;
                    GtkStyle *style = gtk_widget_get_default_style ();

                    /* set the text first (it doesn't emit a signal) */


                    /* now set the item_id and subitem_id */
                    item_id = xml_get_prop_int (node, "item_id");
                    subitem_id = xml_get_prop_int (node, "subitem_id");

                    esb->block_search = TRUE;
                    if (subitem_id >= 0)
                        e_search_bar_set_ids (E_SEARCH_BAR (efb), item_id, subitem_id);
                    else
                        e_search_bar_set_item_menu (E_SEARCH_BAR (efb), item_id);
                    esb->block_search = FALSE;
                    view_id = xml_get_prop_int (node, "view_id");
                    e_search_bar_set_viewitem_id (E_SEARCH_BAR (efb), view_id);
                    scope = xml_get_prop_int (node, "searchscope");
                    e_search_bar_set_search_scope (E_SEARCH_BAR (efb), scope);

                    text = (gchar *)xmlGetProp (node, (const guchar *)"text");
                    e_search_bar_set_text (E_SEARCH_BAR (efb), text);
                    if (text && *text) {
                        efb->current_query = (FilterRule *)efb->option_rules->pdata[item_id - efb->option_base];
                        if (efb->config && efb->current_query)
                            efb->config (efb, efb->current_query, item_id, text, efb->config_data);
                        gtk_widget_set_sensitive (esb->clear_button, TRUE);
                        gtk_widget_modify_base (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                        gtk_widget_modify_text (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
                        gtk_widget_modify_base (((ESearchBar *)efb)->icon_entry, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                        gtk_widget_modify_base (((ESearchBar *)efb)->viewoption, GTK_STATE_NORMAL, &(style->base[GTK_STATE_SELECTED]));
                    } else {
                        gtk_widget_modify_base (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, NULL);
                        gtk_widget_modify_text (((ESearchBar *)efb)->entry, GTK_STATE_NORMAL, NULL);
                        gtk_widget_modify_base (((ESearchBar *)efb)->icon_entry, GTK_STATE_NORMAL, NULL);
                        e_search_bar_paint (esb);
                        efb->current_query = (FilterRule *)efb->option_rules->pdata[item_id - efb->option_base];
                        if (efb->config && efb->current_query)
                            efb->config (efb, efb->current_query, item_id, "", efb->config_data);
                    }

                    xmlFree (text);


                    break;
                }

                node = node->next;
            }

            xmlFreeDoc (doc);
        } else {
            /* set default state */
            e_search_bar_set_item_id ((ESearchBar *) efb, 0);
            e_search_bar_set_viewitem_id ((ESearchBar *) efb, 0);
            e_search_bar_set_search_scope ((ESearchBar *) efb, E_FILTERBAR_CURRENT_FOLDER_ID);
        }

        /* we don't want to run option_changed */
        efb->setquery = TRUE;
        g_signal_emit_by_name (efb, "search_activated", NULL);
        efb->setquery = FALSE;

        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        break;
    }
}

static void clear_rules(EFilterBar *efb, GPtrArray *rules)
{
    gint i;
    FilterRule *rule;

    /* clear out any data on old rules */
    for (i=0;i<rules->len;i++) {
        rule = rules->pdata[i];
        g_signal_handlers_disconnect_by_func (rule, G_CALLBACK (rule_changed), efb);
        g_object_unref(rule);
    }
    g_ptr_array_set_size (rules, 0);
}

static void
dispose (GObject *object)
{
    EFilterBar *bar;

    g_return_if_fail (object != NULL);
    g_return_if_fail (E_IS_FILTER_BAR (object));

    bar = E_FILTER_BAR (object);

    if (bar->context != NULL && bar->userrules != NULL)
        rule_context_save (bar->context, bar->userrules);

    if (bar->menu_rules != NULL) {
        clear_rules(bar, bar->menu_rules);
        clear_rules(bar, bar->option_rules);

        g_ptr_array_free (bar->menu_rules, TRUE);
        g_ptr_array_free (bar->option_rules, TRUE);

        g_free (bar->systemrules);
        g_free (bar->userrules);

        bar->menu_rules = NULL;
        bar->option_rules = NULL;
        bar->systemrules = NULL;
        bar->userrules = NULL;
    }

    if (bar->context != NULL) {
        g_signal_handlers_disconnect_by_func (bar->context, G_CALLBACK (context_changed), bar);
        g_signal_handlers_disconnect_by_func (bar->context, G_CALLBACK (context_rule_removed), bar);

        g_object_unref (bar->context);
        bar->context = NULL;
    }

    if (bar->default_items) {
        free_items (bar->default_items);
        bar->default_items = NULL;
    }

    (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}


static void
class_init (EFilterBarClass *klass)
{
    GObjectClass *object_class = (GObjectClass *) klass;
    ESearchBarClass *esb_class = (ESearchBarClass *) klass;
    GParamSpec *pspec;

    parent_class = g_type_class_ref (e_search_bar_get_type ());

    object_class->dispose = dispose;
    object_class->get_property = get_property;
    object_class->set_property = set_property;

    esb_class->set_menu = set_menu;
    esb_class->set_option = set_option;

    pspec = g_param_spec_string ("query", NULL, NULL, NULL, G_PARAM_READABLE);
    g_object_class_install_property (object_class, PROP_QUERY, pspec);

    pspec = g_param_spec_string ("state", NULL, NULL, NULL, G_PARAM_READWRITE);
    g_object_class_install_property (object_class, PROP_STATE, pspec);

    /*gtk_object_add_arg_type ("EFilterBar::query", G_TYPE_STRING, GTK_ARG_READABLE, ARG_QUERY);*/

#if 0
    esb_signals [QUERY_CHANGED] =
        g_signal_new ("query_changed",
                G_SIGNAL_RUN_LAST,
                object_class->type,
                G_STRUCT_OFFSET (EFilterBarClass, query_changed),
                g_cclosure_marshal_VOID__VOID,
                G_TYPE_NONE, 0);

    esb_signals [MENU_ACTIVATED] =
        g_signal_new ("menu_activated",
                G_SIGNAL_RUN_LAST,
                object_class->type,
                G_STRUCT_OFFSET (EFilterBarClass, menu_activated),
                g_cclosure_marshal_VOID__INT,
                G_TYPE_NONE, 1, G_TYPE_INT);

    gtk_object_class_add_signals (object_class, esb_signals, LAST_SIGNAL);
#endif
}

static void
init (EFilterBar *efb)
{
    g_signal_connect (efb, "menu_activated", G_CALLBACK (menubar_activated), NULL);
    g_signal_connect (efb, "query_changed", G_CALLBACK (option_changed), NULL);
    g_signal_connect (efb, "search_activated", G_CALLBACK (option_changed), NULL);

    efb->menu_rules = g_ptr_array_new ();
    efb->option_rules = g_ptr_array_new ();
}


/* Object construction.  */

EFilterBar *
e_filter_bar_new (RuleContext *context,
          const gchar *systemrules,
          const gchar *userrules,
          EFilterBarConfigRule config,
          gpointer data)
{
    EFilterBar *bar;

    bar = g_object_new (e_filter_bar_get_type (), NULL);
    ((ESearchBar *)bar)->lite = FALSE;

    e_filter_bar_new_construct (context, systemrules, userrules, config, data, bar);

    return bar;
}

EFilterBar *
e_filter_bar_lite_new (RuleContext *context,
          const gchar *systemrules,
          const gchar *userrules,
          EFilterBarConfigRule config,
          gpointer data)
{
    EFilterBar *bar;

    bar = g_object_new (e_filter_bar_get_type (), NULL);
    ((ESearchBar *)bar)->lite = TRUE;
    e_filter_bar_new_construct (context, systemrules, userrules, config, data, bar);

    return bar;
}

void
e_filter_bar_new_construct (RuleContext *context,
          const gchar *systemrules,
          const gchar *userrules,
          EFilterBarConfigRule config,
          gpointer data ,EFilterBar *bar )
{
    ESearchBarItem item = { NULL, -1, 0 };

    bar->context = context;
    g_object_ref (context);

    bar->config = config;
    bar->config_data = data;

    bar->systemrules = g_strdup (systemrules);
    bar->userrules = g_strdup (userrules);

    bar->all_account_search_vf = NULL;
    bar->account_search_vf = NULL;
    bar->account_search_cancel = NULL;

    e_search_bar_construct ((ESearchBar *)bar, &item, &item);

    g_signal_connect (context, "changed", G_CALLBACK (context_changed), bar);
    g_signal_connect (context, "rule_removed", G_CALLBACK (context_rule_removed), bar);

}

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

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EFilterBarClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EFilterBar),
            0,     /* n_preallocs */
            (GInstanceInitFunc) init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            e_search_bar_get_type (), "EFilterBar", &type_info, 0);
    }

    return type;
}