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# UnitySupport.py
# -*- Mode: Python; indent-tabs-mode: nil; tab-width: 4; coding: utf-8 -*-
#
# Copyright (c) 2011 Canonical
#
# Author: Michael Vogt <mvo@ubuntu.com>
# Bilal Akhtar <bilalakhtar@ubuntu.com>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
import logging
from gettext import gettext as _
HAVE_UNITY_SUPPORT = False
try:
from gi.repository import Dbusmenu, Unity
HAVE_UNITY_SUPPORT = True
except ImportError as e:
logging.warning("can not import unity GI %s" % e)
class IUnitySupport(object):
""" interface for unity support """
def __init__(self, parent=None):
pass
def set_urgency(self, urgent):
pass
def set_install_menuitem_visible(self, visible):
pass
def set_progress(self, progress):
pass
class UnitySupportImpl(IUnitySupport):
""" implementation of unity support (if unity is available) """
def __init__(self, parent=None):
# create launcher and quicklist
um_launcher_entry = Unity.LauncherEntry.get_for_desktop_id(
"update-manager.desktop")
self._unity = um_launcher_entry
if parent:
self._add_quicklist(parent)
def _add_quicklist(self, parent):
quicklist = Dbusmenu.Menuitem.new()
# install
self.install_dbusmenuitem = Dbusmenu.Menuitem.new()
self.install_dbusmenuitem.property_set(
Dbusmenu.MENUITEM_PROP_LABEL,
_("Install All Available Updates"))
self.install_dbusmenuitem.property_set_bool(
Dbusmenu.MENUITEM_PROP_VISIBLE, True)
self.install_dbusmenuitem.connect(
"item-activated", parent.install_all_updates, None)
quicklist.child_append(self.install_dbusmenuitem)
# add it
self._unity.set_property("quicklist", quicklist)
def set_progress(self, progress):
""" set the progress [0,100] """
self._unity.set_property("progress", progress / 100.0)
# hide progress when out of bounds
if progress < 0 or progress > 100:
self._unity.set_property("progress_visible", False)
else:
self._unity.set_property("progress_visible", True)
def set_urgency(self, urgent):
self._unity.set_property("urgent", urgent)
def set_install_menuitem_visible(self, visible):
self.install_dbusmenuitem.property_set_bool(
Dbusmenu.MENUITEM_PROP_VISIBLE, visible)
# check what to export to the clients
if HAVE_UNITY_SUPPORT:
UnitySupport = UnitySupportImpl
else:
# we just provide the empty interface
UnitySupport = IUnitySupport