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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 logging
from gettext import gettext as _
import gobject
import gtk
from sugar.datastore import datastore
from sugar.graphics.radiotoolbutton import RadioToolButton
from sugar.graphics.palette import Palette
from jarabe.model import 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)
self._volume_buttons = []
self._volume_added_hid = None
self._volume_removed_hid = None
self.connect('destroy', self.__destroy_cb)
# TODO: It's unclear now how removable devices will be handled in the
# Journal. Disable for now.
#gobject.idle_add(self._set_up_volumes)
def __destroy_cb(self, widget):
volumes_manager = volume.get_volumes_manager()
volumes_manager.disconnect(self._volume_added_hid)
volumes_manager.disconnect(self._volume_removed_hid)
def _set_up_volumes(self):
volumes_manager = volume.get_volumes_manager()
self._volume_added_hid = \
volumes_manager.connect('volume-added', self._volume_added_cb)
self._volume_removed_hid = \
volumes_manager.connect('volume-removed',
self._volume_removed_cb)
for vol in volumes_manager.get_volumes():
self._add_button(vol)
def _volume_added_cb(self, volumes_manager, vol):
self._add_button(vol)
def _volume_removed_cb(self, volumes_manager, vol):
self._remove_button(vol)
def _add_button(self, vol):
logging.debug('VolumeToolbar._add_button: %r' % vol.name)
if self._volume_buttons:
group = self._volume_buttons[0]
else:
group = None
palette = Palette(vol.name)
button = VolumeButton(vol, group)
button.set_palette(palette)
button.connect('toggled', self._button_toggled_cb, vol)
if self._volume_buttons:
position = self.get_item_index(self._volume_buttons[-1]) + 1
else:
position = 0
self.insert(button, position)
button.show()
self._volume_buttons.append(button)
if vol.can_unmount:
menu_item = gtk.MenuItem(_('Unmount'))
menu_item.connect('activate', self._unmount_activated_cb, vol)
palette.menu.append(menu_item)
menu_item.show()
if len(self.get_children()) > 1:
self.show()
def _button_toggled_cb(self, button, vol):
if button.props.active:
self.emit('volume-changed', vol.id)
def _unmount_activated_cb(self, menu_item, vol):
logging.debug('VolumesToolbar._unmount_activated_cb: %r', vol.udi)
vol.unmount()
def _remove_button(self, vol):
for button in self.get_children():
if button.volume.id == vol.id:
self._volume_buttons.remove(button)
self.remove(button)
self.get_children()[0].props.active = True
if len(self.get_children()) < 2:
self.hide()
return
class VolumeButton(RadioToolButton):
def __init__(self, vol, group):
RadioToolButton.__init__(self)
self.props.named_icon = vol.icon_name
self.props.xo_color = vol.icon_color
self.props.group = group
self.volume = vol
self.drag_dest_set(gtk.DEST_DEFAULT_ALL,
[('journal-object-id', 0, 0)],
gtk.gdk.ACTION_COPY)
self.connect('drag-data-received', self._drag_data_received_cb)
def _drag_data_received_cb(self, widget, drag_context, x, y, selection_data,
info, timestamp):
jobject = datastore.get(selection_data.data)
datastore.copy(jobject, self.volume.id)
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