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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-monitor.c: file and directory change monitoring for nautilus
Copyright (C) 2000, 2001 Eazel, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU 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: Seth Nickell <seth@eazel.com>
Darin Adler <darin@bentspoon.com>
Alex Graveley <alex@ximian.com>
*/
#include <config.h>
#include "nautilus-monitor.h"
#include "nautilus-file-changes-queue.h"
#include "nautilus-file-utilities.h"
#include <libgnome/gnome-util.h>
#include <libgnomevfs/gnome-vfs-utils.h>
#include <libgnomevfs/gnome-vfs-ops.h>
#include <libgnomevfs/gnome-vfs-volume-monitor.h>
struct NautilusMonitor {
GnomeVFSMonitorHandle *handle;
};
gboolean
nautilus_monitor_active (void)
{
static gboolean tried_monitor = FALSE;
static gboolean monitor_success;
char *desktop_directory, *uri;
NautilusMonitor *monitor;
if (tried_monitor == FALSE) {
desktop_directory = nautilus_get_desktop_directory ();
uri = gnome_vfs_get_uri_from_local_path (desktop_directory);
monitor = nautilus_monitor_directory (uri);
monitor_success = (monitor != NULL);
if (monitor != NULL) {
nautilus_monitor_cancel (monitor);
}
g_free (desktop_directory);
g_free (uri);
tried_monitor = TRUE;
}
return monitor_success;
}
static gboolean
path_is_on_readonly_volume (const char *path)
{
GnomeVFSVolumeMonitor *volume_monitor;
GnomeVFSVolume *volume;
gboolean res;
volume_monitor = gnome_vfs_get_volume_monitor ();
volume = gnome_vfs_volume_monitor_get_volume_for_path (volume_monitor,
path);
res = FALSE;
if (volume != NULL) {
res = gnome_vfs_volume_is_read_only (volume);
gnome_vfs_volume_unref (volume);
}
return res;
}
static gboolean call_consume_changes_idle_id = 0;
static gboolean
call_consume_changes_idle_cb (gpointer not_used)
{
nautilus_file_changes_consume_changes (TRUE);
call_consume_changes_idle_id = 0;
return FALSE;
}
static void
monitor_notify_cb (GnomeVFSMonitorHandle *handle,
const gchar *monitor_uri,
const gchar *info_uri,
GnomeVFSMonitorEventType event_type,
gpointer user_data)
{
switch (event_type) {
case GNOME_VFS_MONITOR_EVENT_CHANGED:
nautilus_file_changes_queue_file_changed (info_uri);
break;
case GNOME_VFS_MONITOR_EVENT_DELETED:
nautilus_file_changes_queue_file_removed (info_uri);
break;
case GNOME_VFS_MONITOR_EVENT_CREATED:
nautilus_file_changes_queue_file_added (info_uri);
break;
/* None of the following are supported yet */
case GNOME_VFS_MONITOR_EVENT_STARTEXECUTING:
case GNOME_VFS_MONITOR_EVENT_STOPEXECUTING:
case GNOME_VFS_MONITOR_EVENT_METADATA_CHANGED:
break;
}
if (call_consume_changes_idle_id == 0) {
call_consume_changes_idle_id =
g_idle_add (call_consume_changes_idle_cb, NULL);
}
}
static NautilusMonitor *
monitor_add_internal (const char *uri, gboolean is_directory)
{
gchar *path;
NautilusMonitor *ret;
GnomeVFSResult result;
path = gnome_vfs_get_local_path_from_uri (uri);
/*
* Don't monitor URIs on a read-only volume.
* This is a hack to avoid FAM keeping open fds to CD-ROMs,
* causing unmount/eject to fail.
*/
if (path != NULL && path_is_on_readonly_volume (path) == TRUE) {
g_free (path);
return NULL;
}
g_free (path);
ret = g_new0 (NautilusMonitor, 1);
result = gnome_vfs_monitor_add (&ret->handle,
uri,
is_directory == TRUE ?
GNOME_VFS_MONITOR_DIRECTORY :
GNOME_VFS_MONITOR_FILE,
monitor_notify_cb,
NULL);
if (result != GNOME_VFS_OK) {
g_free (ret);
return NULL;
}
return ret;
}
NautilusMonitor *
nautilus_monitor_directory (const char *uri)
{
return monitor_add_internal (uri, TRUE);
}
NautilusMonitor *
nautilus_monitor_file (const char *uri)
{
return monitor_add_internal (uri, FALSE);
}
void
nautilus_monitor_cancel (NautilusMonitor *monitor)
{
if (monitor->handle != NULL) {
gnome_vfs_monitor_cancel (monitor->handle);
}
g_free (monitor);
}
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