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# Copyright (C) 2006-2007, Red Hat, Inc.
#
# 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 _
from gi.repository import GConf
import glib
from gi.repository import GObject
from gi.repository import Gtk
import dbus
from sugar3.graphics import style
from sugar3.graphics.icon import get_icon_state
from sugar3.graphics.tray import TrayIcon
from sugar3.graphics.palette import Palette
from sugar3.graphics.palettemenu import PaletteMenuBox
from sugar3.graphics.xocolor import XoColor
from jarabe.frame.frameinvoker import FrameWidgetInvoker
_ICON_NAME = 'battery'
_STATUS_CHARGING = 0
_STATUS_DISCHARGING = 1
_STATUS_FULLY_CHARGED = 2
_STATUS_NOT_PRESENT = 3
_UP_DEVICE_IFACE = 'org.freedesktop.UPower.Device'
_UP_TYPE_BATTERY = 2
_UP_STATE_UNKNOWN = 0
_UP_STATE_CHARGING = 1
_UP_STATE_DISCHARGING = 2
_UP_STATE_EMPTY = 3
_UP_STATE_FULL = 4
_UP_STATE_CHARGE_PENDING = 5
_UP_STATE_DISCHARGE_PENDING = 6
_WARN_MIN_PERCENTAGE = 15
class DeviceView(TrayIcon):
FRAME_POSITION_RELATIVE = 102
def __init__(self, battery):
client = GConf.Client.get_default()
self._color = XoColor(client.get_string('/desktop/sugar/user/color'))
TrayIcon.__init__(self, icon_name=_ICON_NAME, xo_color=self._color)
self.set_palette_invoker(FrameWidgetInvoker(self))
self._model = DeviceModel(battery)
self.palette = BatteryPalette(glib.markup_escape_text(_('My Battery')))
self.palette.set_group_id('frame')
self.palette_invoker.props.toggle_palette = True
self._model.connect('updated',
self.__battery_status_changed_cb)
self._update_info()
def _update_info(self):
name = _ICON_NAME
current_level = self._model.props.level
xo_color = self._color
badge_name = None
if not self._model.props.present:
status = _STATUS_NOT_PRESENT
badge_name = None
xo_color = XoColor('%s,%s' % (style.COLOR_WHITE.get_svg(),
style.COLOR_WHITE.get_svg()))
elif self._model.props.charging:
status = _STATUS_CHARGING
name += '-charging'
xo_color = XoColor('%s,%s' % (style.COLOR_WHITE.get_svg(),
style.COLOR_WHITE.get_svg()))
elif self._model.props.discharging:
status = _STATUS_DISCHARGING
if current_level <= _WARN_MIN_PERCENTAGE:
badge_name = 'emblem-warning'
else:
status = _STATUS_FULLY_CHARGED
self.icon.props.icon_name = get_icon_state(name, current_level,
step=-5)
self.icon.props.xo_color = xo_color
self.icon.props.badge_name = badge_name
self.palette.set_info(current_level, self._model.props.time_remaining,
status)
def __battery_status_changed_cb(self, model):
self._update_info()
class BatteryPalette(Palette):
def __init__(self, primary_text):
Palette.__init__(self, primary_text)
self._level = 0
self._time = 0
self._status = _STATUS_NOT_PRESENT
self._progress_widget = PaletteMenuBox()
self.set_content(self._progress_widget)
self._progress_widget.show()
inner_box = Gtk.VBox()
inner_box.set_spacing(style.DEFAULT_PADDING)
self._progress_widget.append_item(inner_box, vertical_padding=0)
inner_box.show()
self._progress_bar = Gtk.ProgressBar()
self._progress_bar.set_size_request(
style.zoom(style.GRID_CELL_SIZE * 4), -1)
inner_box.pack_start(self._progress_bar, True, True, 0)
self._progress_bar.show()
self._status_label = Gtk.Label()
inner_box.pack_start(self._status_label, True, True, 0)
self._status_label.show()
def set_info(self, percentage, seconds, status):
self._level = percentage
self._time = seconds
self._status = status
self._progress_bar.set_fraction(percentage / 100.0)
self._update_secondary()
def _update_secondary(self):
secondary_text = ''
status_text = '%s%%' % (self._level, )
progress_widget = self._progress_widget
if self._status == _STATUS_NOT_PRESENT:
secondary_text = _('Removed')
progress_widget = None
elif self._status == _STATUS_CHARGING:
secondary_text = _('Charging')
elif self._status == _STATUS_DISCHARGING:
if self._level <= _WARN_MIN_PERCENTAGE:
secondary_text = _('Very little power remaining')
else:
minutes_remaining = self._time // 60
remaining_hourpart = minutes_remaining // 60
remaining_minpart = minutes_remaining % 60
# TRANS: do not translate %(hour)d:%(min).2d it is a variable,
# only translate the word "remaining"
secondary_text = _('%(hour)d:%(min).2d remaining') % \
{'hour': remaining_hourpart, 'min': remaining_minpart}
else:
secondary_text = _('Charged')
self.set_content(progress_widget)
self.props.secondary_text = glib.markup_escape_text(secondary_text)
self._status_label.set_text(status_text)
class DeviceModel(GObject.GObject):
__gproperties__ = {
'level': (int, None, None, 0, 100, 0, GObject.PARAM_READABLE),
'time-remaining': (int, None, None, 0, GObject.constants.G_MAXINT32, 0,
GObject.PARAM_READABLE), # unit: seconds
'charging': (bool, None, None, False, GObject.PARAM_READABLE),
'discharging': (bool, None, None, False, GObject.PARAM_READABLE),
'present': (bool, None, None, False, GObject.PARAM_READABLE),
}
__gsignals__ = {
'updated': (GObject.SignalFlags.RUN_FIRST, None, ([])),
}
def __init__(self, battery):
GObject.GObject.__init__(self)
self._battery = battery
self._battery_props_iface = dbus.Interface(self._battery,
dbus.PROPERTIES_IFACE)
self._battery.connect_to_signal('Changed',
self.__battery_properties_changed_cb,
dbus_interface=_UP_DEVICE_IFACE)
self._fetch_properties_from_upower()
def _fetch_properties_from_upower(self):
"""Get current values from UPower."""
# pylint: disable=W0201
try:
dbus_props = self._battery_props_iface.GetAll(_UP_DEVICE_IFACE)
except dbus.DBusException:
logging.error('Cannot access battery properties')
dbus_props = {}
self._level = dbus_props.get('Percentage', 0)
self._state = dbus_props.get('State', _UP_STATE_UNKNOWN)
self._present = dbus_props.get('IsPresent', False)
self._time_to_empty = dbus_props.get('TimeToEmpty', 0)
self._time_to_full = dbus_props.get('TimeToFull', 0)
def do_get_property(self, pspec):
"""Return current value of given GObject property."""
if pspec.name == 'level':
return self._level
if pspec.name == 'charging':
return self._state == _UP_STATE_CHARGING
if pspec.name == 'discharging':
return self._state == _UP_STATE_DISCHARGING
if pspec.name == 'present':
return self._present
if pspec.name == 'time-remaining':
if self._state == _UP_STATE_CHARGING:
return self._time_to_full
if self._state == _UP_STATE_DISCHARGING:
return self._time_to_empty
return 0
def get_type(self):
return 'battery'
def __battery_properties_changed_cb(self):
old_level = self._level
old_state = self._state
old_present = self._present
old_time = self.props.time_remaining
self._fetch_properties_from_upower()
if self._level != old_level:
self.notify('level')
if self._state != old_state:
self.notify('charging')
self.notify('discharging')
if self._present != old_present:
self.notify('present')
if self.props.time_remaining != old_time:
self.notify('time-remaining')
self.emit('updated')
def setup(tray):
bus = dbus.Bus(dbus.Bus.TYPE_SYSTEM)
up_proxy = bus.get_object('org.freedesktop.UPower',
'/org/freedesktop/UPower')
upower = dbus.Interface(up_proxy, 'org.freedesktop.UPower')
for device_path in upower.EnumerateDevices():
device = bus.get_object('org.freedesktop.UPower', device_path)
device_prop_iface = dbus.Interface(device, dbus.PROPERTIES_IFACE)
device_type = device_prop_iface.Get(_UP_DEVICE_IFACE, 'Type')
if device_type == _UP_TYPE_BATTERY:
tray.add_device(DeviceView(device))
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