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/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
/* Copyright (C) 2007 Carlos Garnacho
*
* 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) 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.
*
* Authors: Carlos Garnacho Parro <carlosg@gnome.org>
*/
#include <glib.h>
#include <gio/gio.h>
#include "file-monitor.h"
#define STB_FILE_MONITOR_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), STB_TYPE_FILE_MONITOR, StbFileMonitorPrivate))
enum {
OBJECT_CHANGED,
LAST_SIGNAL
};
typedef struct StbFileMonitorPrivate StbFileMonitorPrivate;
struct StbFileMonitorPrivate
{
GHashTable *monitors;
};
static GQuark file_monitor_qdata;
static guint signals [LAST_SIGNAL];
static void stb_file_monitor_finalize (GObject *object);
G_DEFINE_TYPE (StbFileMonitor, stb_file_monitor, G_TYPE_OBJECT);
static void
stb_file_monitor_class_init (StbFileMonitorClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = stb_file_monitor_finalize;
file_monitor_qdata = g_quark_from_static_string ("stb-file-monitor-data");
signals [OBJECT_CHANGED] =
g_signal_new ("object-changed",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (StbFileMonitorClass, object_changed),
NULL, NULL,
g_cclosure_marshal_VOID__STRING,
G_TYPE_NONE, 1, G_TYPE_STRING);
g_type_class_add_private (object_class,
sizeof (StbFileMonitorPrivate));
}
static void
destroy_monitor_list (gpointer data)
{
GList *list = (GList *) data;
g_list_foreach (list, (GFunc) g_object_unref, NULL);
g_list_free (list);
}
static void
stb_file_monitor_init (StbFileMonitor *file_monitor)
{
StbFileMonitorPrivate *priv;
priv = STB_FILE_MONITOR_GET_PRIVATE (file_monitor);
priv->monitors = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) destroy_monitor_list);
}
static void
stb_file_monitor_finalize (GObject *object)
{
StbFileMonitorPrivate *priv;
priv = STB_FILE_MONITOR_GET_PRIVATE (object);
g_hash_table_unref (priv->monitors);
G_OBJECT_CLASS (stb_file_monitor_parent_class)->finalize (object);
}
StbFileMonitor *
stb_file_monitor_new (void)
{
return g_object_new (STB_TYPE_FILE_MONITOR, NULL);
}
static void
monitor_changed (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event,
gpointer user_data)
{
StbFileMonitor *file_monitor;
const gchar *object;
if (event == G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT)
{
file_monitor = STB_FILE_MONITOR (user_data);
object = g_object_get_qdata (G_OBJECT (monitor), file_monitor_qdata);
g_signal_emit (file_monitor, signals [OBJECT_CHANGED], 0, object);
}
}
void
stb_file_monitor_add_files (StbFileMonitor *file_monitor,
const gchar *object,
const gchar **files)
{
StbFileMonitorPrivate *priv;
GList *object_monitors;
gchar *key;
gint f;
g_return_if_fail (STB_IS_FILE_MONITOR (file_monitor));
priv = STB_FILE_MONITOR_GET_PRIVATE (file_monitor);
if (stb_file_monitor_is_object_handled (file_monitor, object))
return;
key = g_strdup (object);
object_monitors = NULL;
for (f = 0; files[f]; f++)
{
GFileMonitor *monitor;
GFile *file;
file = g_file_new_for_path (files[f]);
monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, NULL);
g_object_set_qdata (G_OBJECT (monitor), file_monitor_qdata, key);
g_signal_connect (monitor, "changed",
G_CALLBACK (monitor_changed), file_monitor);
object_monitors = g_list_prepend (object_monitors, monitor);
}
g_hash_table_insert (priv->monitors, key, object_monitors);
}
gboolean
stb_file_monitor_is_object_handled (StbFileMonitor *file_monitor,
const gchar *object)
{
StbFileMonitorPrivate *priv;
g_return_val_if_fail (STB_IS_FILE_MONITOR (file_monitor), FALSE);
priv = STB_FILE_MONITOR_GET_PRIVATE (file_monitor);
return (g_hash_table_lookup (priv->monitors, object) != NULL);
}
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