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/*
* Copyright 2013 Canonical Ltd.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gio/gio.h> /* GFile, GFileMonitor */
#include "timezone-file.h"
enum
{
PROP_0,
PROP_FILENAME,
PROP_LAST
};
static GParamSpec * properties[PROP_LAST] = { 0 };
struct _IndicatorDatetimeTimezoneFilePriv
{
gchar * filename;
GFile * file;
GFileMonitor * monitor;
gchar * timezone;
};
typedef IndicatorDatetimeTimezoneFilePriv priv_t;
G_DEFINE_TYPE (IndicatorDatetimeTimezoneFile,
indicator_datetime_timezone_file,
INDICATOR_TYPE_DATETIME_TIMEZONE)
/***
****
***/
static void
reload (IndicatorDatetimeTimezoneFile * self)
{
priv_t * p = self->priv;
GError * err = NULL;
gchar * new_timezone = NULL;
if (!g_file_get_contents (p->filename, &new_timezone, NULL, &err))
{
g_warning ("%s Unable to read timezone file '%s': %s", G_STRLOC, p->filename, err->message);
g_error_free (err);
}
else
{
g_strstrip (new_timezone);
if (g_strcmp0 (p->timezone, new_timezone))
{
g_free (p->timezone);
p->timezone = g_strdup (new_timezone);
g_debug ("%s new timezone set: '%s'", G_STRLOC, p->timezone);
indicator_datetime_timezone_notify_timezone (INDICATOR_DATETIME_TIMEZONE(self));
}
g_free (new_timezone);
}
}
static void
set_filename (IndicatorDatetimeTimezoneFile * self, const char * filename)
{
GError * err;
priv_t * p = self->priv;
g_clear_object (&p->monitor);
g_clear_object (&p->file);
g_free (p->filename);
p->filename = g_strdup (filename);
p->file = g_file_new_for_path (p->filename);
err = NULL;
p->monitor = g_file_monitor_file (p->file, G_FILE_MONITOR_NONE, NULL, &err);
if (err != NULL)
{
g_warning ("%s Unable to monitor timezone file '%s': %s", G_STRLOC, TIMEZONE_FILE, err->message);
g_error_free (err);
}
else
{
g_signal_connect_swapped (p->monitor, "changed", G_CALLBACK(reload), self);
g_debug ("%s Monitoring timezone file '%s'", G_STRLOC, p->filename);
}
reload (self);
}
/***
**** IndicatorDatetimeTimezoneClass funcs
***/
static const char *
my_get_timezone (IndicatorDatetimeTimezone * self)
{
return INDICATOR_DATETIME_TIMEZONE_FILE(self)->priv->timezone;
}
/***
**** GObjectClass funcs
***/
static void
my_get_property (GObject * o,
guint property_id,
GValue * value,
GParamSpec * pspec)
{
IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
switch (property_id)
{
case PROP_FILENAME:
g_value_set_string (value, self->priv->filename);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
}
}
static void
my_set_property (GObject * o,
guint property_id,
const GValue * value,
GParamSpec * pspec)
{
IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
switch (property_id)
{
case PROP_FILENAME:
set_filename (self, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
}
}
static void
my_dispose (GObject * o)
{
IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
priv_t * p = self->priv;
g_clear_object (&p->monitor);
g_clear_object (&p->file);
G_OBJECT_CLASS (indicator_datetime_timezone_file_parent_class)->dispose (o);
}
static void
my_finalize (GObject * o)
{
IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
priv_t * p = self->priv;
g_free (p->filename);
g_free (p->timezone);
G_OBJECT_CLASS (indicator_datetime_timezone_file_parent_class)->finalize (o);
}
/***
****
***/
static void
indicator_datetime_timezone_file_class_init (IndicatorDatetimeTimezoneFileClass * klass)
{
GObjectClass * object_class;
IndicatorDatetimeTimezoneClass * location_class;
const GParamFlags flags = G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS;
object_class = G_OBJECT_CLASS (klass);
object_class->dispose = my_dispose;
object_class->finalize = my_finalize;
object_class->set_property = my_set_property;
object_class->get_property = my_get_property;
location_class = INDICATOR_DATETIME_TIMEZONE_CLASS (klass);
location_class->get_timezone = my_get_timezone;
g_type_class_add_private (klass, sizeof (IndicatorDatetimeTimezoneFilePriv));
/* install properties */
properties[PROP_0] = NULL;
properties[PROP_FILENAME] = g_param_spec_string ("filename",
"Filename",
"Filename to monitor for TZ changes",
"",
flags);
g_object_class_install_properties (object_class, PROP_LAST, properties);
}
static void
indicator_datetime_timezone_file_init (IndicatorDatetimeTimezoneFile * self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
INDICATOR_TYPE_DATETIME_TIMEZONE_FILE,
IndicatorDatetimeTimezoneFilePriv);
}
/***
**** Public
***/
IndicatorDatetimeTimezone *
indicator_datetime_timezone_file_new (const char * filename)
{
gpointer o = g_object_new (INDICATOR_TYPE_DATETIME_TIMEZONE_FILE, "filename", filename, NULL);
return INDICATOR_DATETIME_TIMEZONE (o);
}
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