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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2009 Sayamindu Dasgupta <sayamindu@laptop.org>
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import logging
from gi.repository import GObject
from gi.repository import Gio
class DeviceManager(GObject.GObject):
__gsignals__ = {
'device-changed': (GObject.SignalFlags.RUN_FIRST,
None,
([])),
}
def __init__(self):
GObject.GObject.__init__(self)
self._devices = {}
self.volume_monitor = Gio.VolumeMonitor.get()
self.volume_monitor.connect('mount-added', self._mount_added_cb)
self.volume_monitor.connect('mount-removed', self._mount_removed_cb)
self._populate_devices()
def _populate_devices(self):
for mount in self.volume_monitor.get_mounts():
props = self._get_props_from_device(mount)
if mount.can_eject() and props['have_catalog']:
self._devices[mount] = props
def _get_props_from_device(self, mount):
props = {}
props['removable'] = True
props['mounted'] = True
props['mount_path'] = mount.get_default_location().get_path()
props['label'] = mount.get_name()
# FIXME: get the proper size here
props['size'] = 0
props['have_catalog'] = os.path.exists(\
os.path.join(props['mount_path'], 'catalog.xml'))
return props
def _mount_added_cb(self, volume_monitor, device):
props = self._get_props_from_device(device)
self._devices[device] = props
logging.debug('Device added: %s', props)
if props['have_catalog']:
self.emit('device-changed')
def _mount_removed_cb(self, volume_monitor, device):
del self._devices[device]
self.emit('device-changed')
def get_devices(self):
return self._devices
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