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# Copyright (C) 2007, One Laptop Per Child
#
# 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 gettext import gettext as _
import gobject
import gtk
import dbus
from sugar.activity import activity
from sugar.datastore import datastore
from sugar.graphics import color
from sugar.graphics import units
from sugar.graphics.radiotoolbutton import RadioToolButton
from sugar.graphics.palette import Palette
HAL_SERVICE_NAME = 'org.freedesktop.Hal'
HAL_MANAGER_PATH = '/org/freedesktop/Hal/Manager'
HAL_MANAGER_IFACE = 'org.freedesktop.Hal.Manager'
HAL_DEVICE_IFACE = 'org.freedesktop.Hal.Device'
HAL_VOLUME_IFACE = 'org.freedesktop.Hal.Device.Volume'
class VolumesToolbar(gtk.Toolbar):
__gtype_name__ = 'VolumesToolbar'
__gsignals__ = {
'volume-changed': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
([str]))
}
def __init__(self):
gtk.Toolbar.__init__(self)
# Internal flash is not in HAL
internal_flash = datastore.mounts()[0]
self._add_button(internal_flash['id'], _('Journal'), 'activity-journal', None)
bus = dbus.SystemBus()
proxy = bus.get_object(HAL_SERVICE_NAME, HAL_MANAGER_PATH)
hal_manager = dbus.Interface(proxy, HAL_MANAGER_IFACE)
hal_manager.connect_to_signal('DeviceAdded', self._hal_device_added_cb)
gobject.idle_add(self._add_current_hal_devices)
def _add_current_hal_devices(self):
bus = dbus.SystemBus()
proxy = bus.get_object(HAL_SERVICE_NAME, HAL_MANAGER_PATH)
hal_manager = dbus.Interface(proxy, HAL_MANAGER_IFACE)
for udi in hal_manager.FindDeviceByCapability('volume'):
self._add_hal_device(udi)
def _hal_device_added_cb(self, udi):
bus = dbus.SystemBus()
device_object = bus.get_object(HAL_SERVICE_NAME, udi)
device = dbus.Interface(device_object, HAL_DEVICE_IFACE)
if device.QueryCapability('volume'):
self._add_hal_device(udi)
def _add_hal_device(self, udi):
bus = dbus.SystemBus()
device_object = bus.get_object(HAL_SERVICE_NAME, udi)
device = dbus.Interface(device_object, HAL_DEVICE_IFACE)
# Only mount volumes with a filesystem.
if device.GetProperty('volume.fsusage') != 'filesystem':
return
# Don't mount root.
if device.GetProperty('volume.mount_point') == '/':
return
label = device.GetProperty('volume.label')
if device.GetProperty('volume.is_mounted'):
mount_point = device.GetProperty('volume.mount_point')
else:
fs_type = device.GetProperty('volume.fstype')
valid_options = device.GetProperty('volume.mount.valid_options')
options = []
if 'uid=' in valid_options:
options.append('uid=%i' % os.getuid())
mount_point = label
if not mount_point:
mount_point = device.GetProperty('volume.uuid')
volume = dbus.Interface(device_object, HAL_VOLUME_IFACE)
volume.Mount(mount_point, fs_type, options)
mount_point = os.path.join('/media', mount_point)
mount_id = None
ds_mounts = datastore.mounts()
for ds_mount in ds_mounts:
if ds_mount['uri'] == mount_point:
mount_id = ds_mount['id']
if mount_id is None:
mount_id = datastore.mount('inplace:' + mount_point,
dict(title=mount_point))
if not mount_id:
self._unmount_device(uid)
raise RuntimeError('datastore.mount(%r, %r) failed.' % (
'inplace:' + mount_point,
dict(title=mount_point)))
storage_udi = device.GetProperty('block.storage_device')
obj = bus.get_object(HAL_SERVICE_NAME, storage_udi)
storage_device = dbus.Interface(obj, HAL_DEVICE_IFACE)
storage_bus = storage_device.GetProperty('storage.bus')
storage_drive_type = storage_device.GetProperty('storage.drive_type')
if storage_drive_type == 'sd_mmc':
icon_name = 'media-flash-sd-mmc'
else:
icon_name = 'media-flash-usb'
logging.debug('mounted volume %s' % mount_point)
self._add_button(mount_id, label, icon_name, udi)
def _add_button(self, volume_id, volume_name, icon_name, udi):
if self.get_children():
group = self.get_children()[0]
else:
group = None
palette = Palette(volume_name)
palette.props.position = Palette.TOP
button = RadioToolButton(icon_name, group=group)
button.set_palette(palette)
button.connect('toggled', self._button_toggled_cb, volume_id)
self.insert(button, -1)
button.show()
if udi and volume_id:
menu_item = gtk.MenuItem(_('Unmount'))
menu_item.connect('activate', self._unmount_activated_cb, udi, volume_id, button)
palette.append_menu_item(menu_item)
menu_item.show()
if len(self.get_children()) > 1:
self.show()
def _button_toggled_cb(self, button, volume_id):
if button.props.active:
self.emit('volume-changed', volume_id)
def _unmount_activated_cb(self, menu_item, udi, volume_id, button):
datastore.unmount(volume_id)
self._unmount_device(udi)
self.remove(button)
self.get_children()[0].props.active = True
if len(self.get_children()) < 2:
self.hide()
def _unmount_device(self, udi):
bus = dbus.SystemBus()
device_object = bus.get_object(HAL_SERVICE_NAME, udi)
volume = dbus.Interface(device_object, HAL_VOLUME_IFACE)
volume.Unmount([])
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