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# Copyright (C) 2008 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 sugar.graphics import tray
from view.devices import deviceview
from model import shellmodel
_logger = logging.getLogger('DevicesTray')
class DevicesTray(tray.HTray):
def __init__(self):
tray.HTray.__init__(self, align=tray.ALIGN_TO_END)
self._device_icons = {}
devices_model = shellmodel.get_instance().get_devices()
for device in devices_model:
self._add_device(device)
devices_model.connect('device-appeared',
self.__device_appeared_cb)
devices_model.connect('device-disappeared',
self.__device_disappeared_cb)
def _add_device(self, device):
try:
view = deviceview.create(device)
index = 0
for item in self.get_children():
index = self.get_item_index(item)
view_pos = getattr(view, "FRAME_POSITION_RELATIVE", -1)
item_pos = getattr(item, "FRAME_POSITION_RELATIVE", 0)
if view_pos < item_pos:
break
self.add_item(view, index=index)
view.show()
self._device_icons[device.get_id()] = view
except Exception, message:
_logger.warn("Not able to add icon for device [%r], because of "
"an error (%s). Continuing." % (device, message))
def _remove_device(self, device):
self.remove_item(self._device_icons[device.get_id()])
del self._device_icons[device.get_id()]
def __device_appeared_cb(self, model, device):
self._add_device(device)
def __device_disappeared_cb(self, model, device):
self._remove_device(device)
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