/*
*
* 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:
* Jeffrey Stedfast <fejj@ximian.com>
* 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 <gtk/gtk.h>
#include <gconf/gconf.h>
#include <gconf/gconf-client.h>
#include <glib/gi18n.h>
#include <libgnomeui/gnome-dialog.h>
#include <libgnomeui/gnome-dialog-util.h>
#include "filter-label.h"
#include <libedataserver/e-sexp.h>
#include "e-util/e-util.h"
#include "e-util/e-util-labels.h"
#define d(x)
static void xml_create (FilterElement *fe, xmlNodePtr node);
static void filter_label_class_init (FilterLabelClass *klass);
static void filter_label_init (FilterLabel *label);
static void filter_label_finalise (GObject *obj);
static FilterElementClass *parent_class;
GType
filter_label_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (FilterLabelClass),
NULL, /* base_class_init */
NULL, /* base_class_finalize */
(GClassInitFunc) filter_label_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (FilterLabel),
0, /* n_preallocs */
(GInstanceInitFunc) filter_label_init,
};
type = g_type_register_static (FILTER_TYPE_OPTION, "FilterLabel", &info, 0);
}
return type;
}
static GStaticRecMutex cache_lock = G_STATIC_REC_MUTEX_INIT;
static guint cache_notifier_id = 0;
static GSList *tracked_filters = NULL;
static GSList *labels_cache = NULL;
static GConfClient *gconf_client = NULL;
static void fill_cache (void);
static void clear_cache (void);
static void gconf_labels_changed (GConfClient *client, guint cnxn_id, GConfEntry *entry, gpointer user_data);
static void
filter_label_class_init (FilterLabelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
FilterElementClass *fe_class = FILTER_ELEMENT_CLASS (klass);
parent_class = g_type_class_ref (FILTER_TYPE_OPTION);
object_class->finalize = filter_label_finalise;
/* override methods */
fe_class->xml_create = xml_create;
}
static void
filter_label_init (FilterLabel *fl)
{
((FilterOption *) fl)->type = "label";
g_static_rec_mutex_lock (&cache_lock);
if (!tracked_filters) {
fill_cache ();
gconf_client = gconf_client_get_default ();
gconf_client_add_dir (gconf_client, E_UTIL_LABELS_GCONF_KEY, GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
cache_notifier_id = gconf_client_notify_add (gconf_client, E_UTIL_LABELS_GCONF_KEY, gconf_labels_changed, NULL, NULL, NULL);
}
tracked_filters = g_slist_prepend (tracked_filters, fl);
g_static_rec_mutex_unlock (&cache_lock);
}
static void
filter_label_finalise (GObject *obj)
{
G_OBJECT_CLASS (parent_class)->finalize (obj);
g_static_rec_mutex_lock (&cache_lock);
tracked_filters = g_slist_remove (tracked_filters, obj);
if (!tracked_filters) {
clear_cache ();
if (cache_notifier_id)
gconf_client_notify_remove (gconf_client, cache_notifier_id);
cache_notifier_id = 0;
g_object_unref (gconf_client);
gconf_client = NULL;
}
g_static_rec_mutex_unlock (&cache_lock);
}
/**
* filter_label_new:
*
* Create a new FilterLabel object.
*
* Return value: A new #FilterLabel object.
**/
FilterLabel *
filter_label_new (void)
{
return (FilterLabel *) g_object_new (FILTER_TYPE_LABEL, NULL, NULL);
}
/* ************************************************************************* */
/* should already hold the lock when calling this function */
static void
fill_cache (void)
{
labels_cache = e_util_labels_parse (NULL);
}
/* should already hold the lock when calling this function */
static void
clear_cache (void)
{
e_util_labels_free (labels_cache);
labels_cache = NULL;
}
static void
fill_options (FilterOption *fo)
{
GSList *l;
g_static_rec_mutex_lock (&cache_lock);
for (l = labels_cache; l; l = l->next) {
EUtilLabel *label = l->data;
const char *tag;
char *title;
if (!label)
continue;
title = e_str_without_underscores (label->name);
tag = label->tag;
if (tag && strncmp (tag, "$Label", 6) == 0)
tag += 6;
filter_option_add (fo, tag, title, NULL, FALSE);
g_free (title);
}
g_static_rec_mutex_unlock (&cache_lock);
}
static void
regen_label_options (FilterOption *fo)
{
char *current;
if (!fo)
return;
current = g_strdup (filter_option_get_current (fo));
filter_option_remove_all (fo);
fill_options (fo);
if (current)
filter_option_set_current (fo, current);
g_free (current);
}
static void
gconf_labels_changed (GConfClient *client, guint cnxn_id, GConfEntry *entry, gpointer user_data)
{
g_static_rec_mutex_lock (&cache_lock);
clear_cache ();
fill_cache ();
g_slist_foreach (tracked_filters, (GFunc)regen_label_options, NULL);
g_static_rec_mutex_unlock (&cache_lock);
}
/* ************************************************************************* */
int
filter_label_count (void)
{
int res;
g_static_rec_mutex_lock (&cache_lock);
res = g_slist_length (labels_cache);
g_static_rec_mutex_unlock (&cache_lock);
return res;
}
const char *
filter_label_label (int i)
{
const char *res = NULL;
GSList *l;
EUtilLabel *label;
g_static_rec_mutex_lock (&cache_lock);
l = g_slist_nth (labels_cache, i);
if (l)
label = l->data;
else
label = NULL;
if (label && label->tag) {
if (strncmp (label->tag, "$Label", 6) == 0)
res = label->tag + 6;
else
res = label->tag;
}
g_static_rec_mutex_unlock (&cache_lock);
return res;
}
int
filter_label_index (const char *label)
{
int i;
GSList *l;
g_static_rec_mutex_lock (&cache_lock);
for (i = 0, l = labels_cache; l; i++, l = l->next) {
EUtilLabel *lbl = l->data;
const char *tag = lbl->tag;
if (tag && strncmp (tag, "$Label", 6) == 0)
tag += 6;
if (tag && strcmp (tag, label) == 0)
break;
}
g_static_rec_mutex_unlock (&cache_lock);
if (l)
return i;
return -1;
}
static void
xml_create (FilterElement *fe, xmlNodePtr node)
{
FILTER_ELEMENT_CLASS (parent_class)->xml_create (fe, node);
fill_options ((FilterOption *) fe);
}