# 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 os
import sys
import traceback
import logging

from sugar.graphics import tray

from jarabe import config

class DevicesTray(tray.HTray):
    def __init__(self):
        tray.HTray.__init__(self, align=tray.ALIGN_TO_END)

        for f in os.listdir(os.path.join(config.ext_path, 'deviceicon')):
            if f.endswith('.py') and not f.startswith('__'):
                module_name = f[:-3]
                try:
                    mod = __import__('deviceicon.' + module_name, globals(),
                                     locals(), [module_name])
                    mod.setup(self)
                except Exception:
                    logging.error('Exception while loading extension:\n' + \
                        ''.join(traceback.format_exception(*sys.exc_info())))

    def add_device(self, view):
        index = 0
        relative_index = getattr(view, "FRAME_POSITION_RELATIVE", -1)
        for item in self.get_children():
            current_relative_index = getattr(item, "FRAME_POSITION_RELATIVE", 0)
            if current_relative_index >= relative_index:
                break
            index += 1
        self.add_item(view, index=index)
        view.show()

    def remove_device(self, view):
        self.remove_item(view)