Python pulsingicon.PulsingIcon类代码示例

 def do_draw(self, cr):
     PulsingIcon.do_draw(self, cr)
     if self._badge:
         cr.set_source_surface(self._badge,
                               self.props.position,
                               self.props.position)
         cr.paint()

class NotificationIcon(gtk.EventBox):
    __gtype_name__ = 'SugarNotificationIcon'

    __gproperties__ = {
        'xo-color': (object, None, None, gobject.PARAM_READWRITE),
        'icon-name': (str, None, None, None, gobject.PARAM_READWRITE),
        'icon-filename': (str, None, None, None, gobject.PARAM_READWRITE),
    }

    _PULSE_TIMEOUT = 3

    def __init__(self, **kwargs):
        self._icon = PulsingIcon(pixel_size=style.STANDARD_ICON_SIZE)
        gobject.GObject.__init__(self, **kwargs)
        self.props.visible_window = False

        self._icon.props.pulse_color = \
                XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                                   style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulsing = True
        self.add(self._icon)
        self._icon.show()

        gobject.timeout_add_seconds(self._PULSE_TIMEOUT,
                                    self.__stop_pulsing_cb)

        self.set_size_request(style.GRID_CELL_SIZE, style.GRID_CELL_SIZE)

    def __stop_pulsing_cb(self):
        self._icon.props.pulsing = False
        return False

    def do_set_property(self, pspec, value):
        if pspec.name == 'xo-color':
            if self._icon.props.base_color != value:
                self._icon.props.base_color = value
        elif pspec.name == 'icon-name':
            if self._icon.props.icon_name != value:
                self._icon.props.icon_name = value
        elif pspec.name == 'icon-filename':
            if self._icon.props.file != value:
                self._icon.props.file = value

    def do_get_property(self, pspec):
        if pspec.name == 'xo-color':
            return self._icon.props.base_color
        elif pspec.name == 'icon-name':
            return self._icon.props.icon_name
        elif pspec.name == 'icon-filename':
            return self._icon.props.file

    def _set_palette(self, palette):
        self._icon.palette = palette

    def _get_palette(self):
        return self._icon.palette

    palette = property(_get_palette, _set_palette)

class ActivityButton(RadioToolButton):
    def __init__(self, home_activity, group):
        RadioToolButton.__init__(self, group=group)

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.palette_invoker.cache_palette = False

        self._home_activity = home_activity
        self._notify_launch_hid = None

        self._icon = PulsingIcon()
        self._icon.props.base_color = home_activity.get_icon_color()
        self._icon.props.pulse_color = \
            XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                               style.COLOR_TOOLBAR_GREY.get_svg()))
        if home_activity.get_icon_path():
            self._icon.props.file = home_activity.get_icon_path()
        else:
            self._icon.props.icon_name = 'image-missing'
        self.set_icon_widget(self._icon)
        self._icon.show()

        if home_activity.props.launch_status == shell.Activity.LAUNCHING:
            self._icon.props.pulsing = True
            self._notify_launch_hid = home_activity.connect(
                'notify::launch-status', self.__notify_launch_status_cb)
        elif home_activity.props.launch_status == shell.Activity.LAUNCH_FAILED:
            self._on_failed_launch()

    def create_palette(self):
        if self._home_activity.is_journal():
            palette = JournalPalette(self._home_activity)
        else:
            palette = CurrentActivityPalette(self._home_activity)
            palette.connect('done', self.__palette_item_selected_cb)
        palette.set_group_id('frame')
        self.set_palette(palette)

    def __palette_item_selected_cb(self, widget):
        frame = jarabe.frame.get_view()
        frame.hide()

    def _on_failed_launch(self):
        # TODO http://bugs.sugarlabs.org/ticket/2007
        pass

    def __notify_launch_status_cb(self, home_activity, pspec):
        home_activity.disconnect(self._notify_launch_hid)
        self._notify_launch_hid = None
        if home_activity.props.launch_status == shell.Activity.LAUNCH_FAILED:
            self._on_failed_launch()
        else:
            self._icon.props.pulsing = False

    def do_draw(self, cr):
        PulsingIcon.do_draw(self, cr)
        if self._badge:
            allocation = self.get_allocation()

            # XXX assume icon is centered in its container
            offset = int(self.props.pixel_size / 2) - self.get_badge_size()
            x = int(allocation.width / 2) + offset
            y = int(allocation.height / 2) + offset

            cr.set_source_surface(self._badge, x, y)
            cr.paint()

    def __init__(self, home_activity, group):
        RadioToolButton.__init__(self, group=group)

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.palette_invoker.cache_palette = False

        self._home_activity = home_activity
        self._notify_launch_hid = None

        self._icon = PulsingIcon()
        self._icon.props.base_color = home_activity.get_icon_color()
        self._icon.props.pulse_color = \
                XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                                   style.COLOR_TOOLBAR_GREY.get_svg()))
        if home_activity.get_icon_path():
            self._icon.props.file = home_activity.get_icon_path()
        else:
            self._icon.props.icon_name = 'image-missing'
        self.set_icon_widget(self._icon)
        self._icon.show()

        if home_activity.props.launch_status == shell.Activity.LAUNCHING:
            self._icon.props.pulsing = True
            self._notify_launch_hid = home_activity.connect( \
                    'notify::launch-status', self.__notify_launch_status_cb)
        elif home_activity.props.launch_status == shell.Activity.LAUNCH_FAILED:
            self._on_failed_launch()

    def __init__(self, filename=None, name=None, colors=None):
        PulsingIcon.__init__(self)
        self._badge = None

        if filename:
            self.props.file = filename
        elif name:
            self.props.icon_name = name
        else:
            self.props.icon_name = 'application-octet-stream'

        if not colors:
            colors = profile.get_color()
        self.props.base_color = colors
        self.props.pulse_color = \
            XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                               style.COLOR_TOOLBAR_GREY.get_svg()))

    def __init__(self, activity_id, icon_path, icon_color):
        gobject.GObject.__init__(self)

        self.props.type_hint = gtk.gdk.WINDOW_TYPE_HINT_NORMAL
        self.props.decorated = False
        self.modify_bg(gtk.STATE_NORMAL, style.COLOR_WHITE.get_gdk_color())

        canvas = gtk.VBox()
        canvas.show()
        self.add(canvas)

        bar_size = gtk.gdk.screen_height() / 5 * 2

        header = gtk.VBox()
        header.set_size_request(-1, bar_size)
        header.show()
        canvas.pack_start(header, expand=False)

        self._activity_id = activity_id

        self._activity_icon = PulsingIcon(file=icon_path,
                                          pixel_size=style.XLARGE_ICON_SIZE)
        self._activity_icon.set_base_color(icon_color)
        self._activity_icon.set_zooming(style.SMALL_ICON_SIZE,
                                        style.XLARGE_ICON_SIZE, 10)
        self._activity_icon.set_pulsing(True)
        self._activity_icon.show()
        canvas.pack_start(self._activity_icon)

        footer = gtk.VBox(spacing=style.DEFAULT_SPACING)
        footer.set_size_request(-1, bar_size)
        footer.show()
        canvas.pack_end(footer, expand=False)

        self.error_text = gtk.Label()
        self.error_text.props.use_markup = True
        footer.pack_start(self.error_text, expand=False)

        button_box = gtk.Alignment(xalign=0.5)
        button_box.show()
        footer.pack_start(button_box, expand=False)
        self.cancel_button = gtk.Button(stock=gtk.STOCK_STOP)
        button_box.add(self.cancel_button)

        self.connect('realize', self.__realize_cb)

        screen = gtk.gdk.screen_get_default()
        screen.connect('size-changed', self.__size_changed_cb)

        self._home = shell.get_model()
        self._home.connect('active-activity-changed',
                           self.__active_activity_changed_cb)

        self.connect('destroy', self.__destroy_cb)

        self._update_size()

    def __init__(self, activity_id, icon_path, icon_color):
        Gtk.Window.__init__(self)
        self.set_has_resize_grip(False)

        self.props.type_hint = Gdk.WindowTypeHint.SPLASHSCREEN
        self.modify_bg(Gtk.StateType.NORMAL, style.COLOR_WHITE.get_gdk_color())

        canvas = Gtk.VBox()
        canvas.show()
        self.add(canvas)

        bar_size = Gdk.Screen.height() / 5 * 2

        header = Gtk.VBox()
        header.set_size_request(-1, bar_size)
        header.show()
        canvas.pack_start(header, False, True, 0)

        self._activity_id = activity_id

        self._activity_icon = PulsingIcon(file=icon_path,
                                          pixel_size=style.XLARGE_ICON_SIZE)
        self._activity_icon.set_base_color(icon_color)
        self._activity_icon.set_zooming(style.SMALL_ICON_SIZE,
                                        style.XLARGE_ICON_SIZE, 10)
        self._activity_icon.set_pulsing(True)
        self._activity_icon.show()
        canvas.pack_start(self._activity_icon, True, True, 0)

        footer = Gtk.VBox(spacing=style.DEFAULT_SPACING)
        footer.set_size_request(-1, bar_size)
        footer.show()
        canvas.pack_end(footer, False, True, 0)

        self.error_text = Gtk.Label()
        self.error_text.props.use_markup = True
        footer.pack_start(self.error_text, False, True, 0)

        button_box = Gtk.Alignment.new(0.5, 0, 0, 0)
        button_box.show()
        footer.pack_start(button_box, False, True, 0)
        self.cancel_button = Gtk.Button(stock=Gtk.STOCK_STOP)
        button_box.add(self.cancel_button)

        self.connect('realize', self.__realize_cb)

        screen = Gdk.Screen.get_default()
        screen.connect('size-changed', self.__size_changed_cb)

        self._home = shell.get_model()
        self._home.connect('active-activity-changed',
                           self.__active_activity_changed_cb)

        self.connect('destroy', self.__destroy_cb)

        self._update_size()

    def __init__(self, device):
        ToolButton.__init__(self)

        self._bus = dbus.SystemBus()
        self._device = device
        self._device_props = None
        self._flags = 0
        self._ssid = ''
        self._display_name = ''
        self._mode = network.NM_802_11_MODE_UNKNOWN
        self._strength = 0
        self._frequency = 0
        self._device_state = None
        self._color = None
        self._active_ap_op = None

        self._icon = PulsingIcon()
        self._icon.props.icon_name = get_icon_state('network-wireless', 0)
        self._inactive_color = xocolor.XoColor(
            '%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                       style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulse_color = self._inactive_color
        self._icon.props.base_color = self._inactive_color

        self.set_icon_widget(self._icon)
        self._icon.show()

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.props.hide_tooltip_on_click = False
        self.palette_invoker.props.toggle_palette = True

        self._palette = WirelessPalette(self._display_name)
        self._palette.connect('deactivate-connection',
                              self.__deactivate_connection_cb)
        self.set_palette(self._palette)
        self._palette.set_group_id('frame')

        self._device_props = dbus.Interface(self._device,
                                            dbus.PROPERTIES_IFACE)
        self._device_props.GetAll(
            network.NM_DEVICE_IFACE, byte_arrays=True,
            reply_handler=self.__get_device_props_reply_cb,
            error_handler=self.__get_device_props_error_cb)

        self._device_props.Get(
            network.NM_WIRELESS_IFACE, 'ActiveAccessPoint',
            reply_handler=self.__get_active_ap_reply_cb,
            error_handler=self.__get_active_ap_error_cb)

        self._bus.add_signal_receiver(
            self.__state_changed_cb,
            signal_name='StateChanged',
            path=self._device.object_path,
            dbus_interface=network.NM_DEVICE_IFACE)

    def __init__(self, **kwargs):
        self._icon = PulsingIcon(pixel_size=style.STANDARD_ICON_SIZE)
        gobject.GObject.__init__(self, **kwargs)
        self.props.visible_window = False

        self._icon.props.pulse_color = \
                XoColor('%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                                   style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulsing = True
        self.add(self._icon)
        self._icon.show()

        gobject.timeout_add_seconds(self._PULSE_TIMEOUT,
                                    self.__stop_pulsing_cb)

        self.set_size_request(style.GRID_CELL_SIZE, style.GRID_CELL_SIZE)

    def __init__(self, device, state):
        ToolButton.__init__(self)

        self._bus = dbus.SystemBus()
        self._device = device
        self._device_props = None
        self._device_state = None
        self._channel = 0

        self._icon = PulsingIcon(icon_name=self._ICON_NAME)
        self._inactive_color = xocolor.XoColor(
            '%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                       style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulse_color = profile.get_color()
        self._icon.props.base_color = self._inactive_color

        self.set_icon_widget(self._icon)
        self._icon.show()

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.props.hide_tooltip_on_click = False
        self.palette_invoker.props.toggle_palette = True

        title = _('Mesh Network')
        self._palette = WirelessPalette(GLib.markup_escape_text(title))
        self._palette.connect('deactivate-connection',
                              self.__deactivate_connection)
        self.set_palette(self._palette)
        self._palette.set_group_id('frame')

        self.update_state(state)

        self._device_props = dbus.Interface(self._device,
                                            dbus.PROPERTIES_IFACE)
        self._device_props.Get(
            network.NM_OLPC_MESH_IFACE, 'ActiveChannel',
            reply_handler=self.__get_active_channel_reply_cb,
            error_handler=self.__get_active_channel_error_cb)

        self._bus.add_signal_receiver(
            self.__wireless_properties_changed_cb,
            signal_name='PropertiesChanged',
            path=device.object_path,
            dbus_interface=network.NM_OLPC_MESH_IFACE)

class OlpcMeshDeviceView(ToolButton):
    _ICON_NAME = 'network-mesh'
    FRAME_POSITION_RELATIVE = 302

    def __init__(self, device, state):
        ToolButton.__init__(self)

        self._bus = dbus.SystemBus()
        self._device = device
        self._device_props = None
        self._device_state = None
        self._channel = 0

        self._icon = PulsingIcon(icon_name=self._ICON_NAME)
        self._inactive_color = xocolor.XoColor(
            '%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                       style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulse_color = profile.get_color()
        self._icon.props.base_color = self._inactive_color

        self.set_icon_widget(self._icon)
        self._icon.show()

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.props.hide_tooltip_on_click = False
        self.palette_invoker.props.toggle_palette = True

        self._palette = WirelessPalette(_('Mesh Network'))
        self._palette.connect('deactivate-connection',
                              self.__deactivate_connection)
        self.set_palette(self._palette)
        self._palette.set_group_id('frame')

        self.update_state(state)

        self._device_props = dbus.Interface(self._device,
                                            dbus.PROPERTIES_IFACE)
        self._device_props.Get(
            network.NM_OLPC_MESH_IFACE, 'ActiveChannel',
            reply_handler=self.__get_active_channel_reply_cb,
            error_handler=self.__get_active_channel_error_cb)

        self._bus.add_signal_receiver(
            self.__wireless_properties_changed_cb,
            signal_name='PropertiesChanged',
            path=device.object_path,
            dbus_interface=network.NM_OLPC_MESH_IFACE)

    def disconnect(self):
        self._bus.remove_signal_receiver(
            self.__wireless_properties_changed_cb,
            signal_name='PropertiesChanged',
            path=self._device.object_path,
            dbus_interface=network.NM_OLPC_MESH_IFACE)

    def __get_active_channel_reply_cb(self, channel):
        self._channel = channel
        self._update_text()

    def __get_active_channel_error_cb(self, err):
        logging.error('Error getting the active channel: %s', err)

    def __state_changed_cb(self, new_state, old_state, reason):
        self._device_state = new_state
        self._update()

    def __wireless_properties_changed_cb(self, properties):
        if 'ActiveChannel' in properties:
            self._channel = properties['ActiveChannel']
            self._update_text()

    def _update_text(self):
        channel = str(self._channel)
        self._palette.props.primary_text = _('Mesh Network %s') % (channel, )

    def _update(self):
        state = self._device_state

        if (state >= network.NM_DEVICE_STATE_PREPARE) and \
           (state <= network.NM_DEVICE_STATE_IP_CONFIG):
            self._icon.props.base_color = self._inactive_color
            self._icon.props.pulse_color = profile.get_color()
            self._palette.set_connecting()
            self._icon.props.pulsing = True
        elif state == network.NM_DEVICE_STATE_ACTIVATED:

            def _ip_cb(ip):
                self._icon.props.pulsing = False
                self._palette.set_connected_with_channel(self._channel, ip)
                self._icon.props.base_color = profile.get_color()
                self._icon.props.pulsing = False

            _get_ip(self._bus, self._device_props, _ip_cb)
        self._update_text()

    def update_state(self, state):
        self._device_state = state
        self._update()

    def __deactivate_connection(self, palette, data=None):
#.........这里部分代码省略.........

class WirelessDeviceView(ToolButton):

    FRAME_POSITION_RELATIVE = 302

    def __init__(self, device):
        ToolButton.__init__(self)

        self._bus = dbus.SystemBus()
        self._device = device
        self._device_props = None
        self._flags = 0
        self._ssid = ''
        self._display_name = ''
        self._mode = network.NM_802_11_MODE_UNKNOWN
        self._strength = 0
        self._frequency = 0
        self._device_state = None
        self._color = None
        self._active_ap_op = None

        self._icon = PulsingIcon()
        self._icon.props.icon_name = get_icon_state('network-wireless', 0)
        self._inactive_color = xocolor.XoColor(
            '%s,%s' % (style.COLOR_BUTTON_GREY.get_svg(),
                       style.COLOR_TRANSPARENT.get_svg()))
        self._icon.props.pulse_color = self._inactive_color
        self._icon.props.base_color = self._inactive_color

        self.set_icon_widget(self._icon)
        self._icon.show()

        self.set_palette_invoker(FrameWidgetInvoker(self))
        self.props.hide_tooltip_on_click = False
        self.palette_invoker.props.toggle_palette = True

        self._palette = WirelessPalette(self._display_name)
        self._palette.connect('deactivate-connection',
                              self.__deactivate_connection_cb)
        self.set_palette(self._palette)
        self._palette.set_group_id('frame')

        self._device_props = dbus.Interface(self._device,
                                            dbus.PROPERTIES_IFACE)
        self._device_props.GetAll(
            network.NM_DEVICE_IFACE, byte_arrays=True,
            reply_handler=self.__get_device_props_reply_cb,
            error_handler=self.__get_device_props_error_cb)

        self._device_props.Get(
            network.NM_WIRELESS_IFACE, 'ActiveAccessPoint',
            reply_handler=self.__get_active_ap_reply_cb,
            error_handler=self.__get_active_ap_error_cb)

        self._bus.add_signal_receiver(
            self.__state_changed_cb,
            signal_name='StateChanged',
            path=self._device.object_path,
            dbus_interface=network.NM_DEVICE_IFACE)

    def disconnect(self):
        self._bus.remove_signal_receiver(
            self.__state_changed_cb,
            signal_name='StateChanged',
            path=self._device.object_path,
            dbus_interface=network.NM_DEVICE_IFACE)

    def __get_device_props_reply_cb(self, properties):
        if 'State' in properties:
            self._device_state = properties['State']
            self._update_state()

    def __get_device_props_error_cb(self, err):
        logging.error('Error getting the device properties: %s', err)

    def __get_active_ap_reply_cb(self, active_ap_op):
        if self._active_ap_op != active_ap_op:
            if self._active_ap_op is not None:
                self._bus.remove_signal_receiver(
                    self.__ap_properties_changed_cb,
                    signal_name='PropertiesChanged',
                    path=self._active_ap_op,
                    dbus_interface=network.NM_ACCESSPOINT_IFACE)
            if active_ap_op == '/':
                self._active_ap_op = None
                return
            self._active_ap_op = active_ap_op
            active_ap = self._bus.get_object(network.NM_SERVICE, active_ap_op)
            props = dbus.Interface(active_ap, dbus.PROPERTIES_IFACE)

            props.GetAll(network.NM_ACCESSPOINT_IFACE, byte_arrays=True,
                         reply_handler=self.__get_all_ap_props_reply_cb,
                         error_handler=self.__get_all_ap_props_error_cb)

            self._bus.add_signal_receiver(
                self.__ap_properties_changed_cb,
                signal_name='PropertiesChanged',
                path=self._active_ap_op,
                dbus_interface=network.NM_ACCESSPOINT_IFACE,
                byte_arrays=True)

#.........这里部分代码省略.........

class LaunchWindow(gtk.Window):

    def __init__(self, activity_id, icon_path, icon_color):
        gobject.GObject.__init__(self)

        self.props.type_hint = gtk.gdk.WINDOW_TYPE_HINT_NORMAL
        self.props.decorated = False
        self.modify_bg(gtk.STATE_NORMAL, style.COLOR_WHITE.get_gdk_color())

        canvas = gtk.VBox()
        canvas.show()
        self.add(canvas)

        bar_size = gtk.gdk.screen_height() / 5 * 2

        header = gtk.VBox()
        header.set_size_request(-1, bar_size)
        header.show()
        canvas.pack_start(header, expand=False)

        self._activity_id = activity_id

        self._activity_icon = PulsingIcon(file=icon_path,
                                          pixel_size=style.XLARGE_ICON_SIZE)
        self._activity_icon.set_base_color(icon_color)
        self._activity_icon.set_zooming(style.SMALL_ICON_SIZE,
                                        style.XLARGE_ICON_SIZE, 10)
        self._activity_icon.set_pulsing(True)
        self._activity_icon.show()
        canvas.pack_start(self._activity_icon)

        footer = gtk.VBox(spacing=style.DEFAULT_SPACING)
        footer.set_size_request(-1, bar_size)
        footer.show()
        canvas.pack_end(footer, expand=False)

        self.error_text = gtk.Label()
        self.error_text.props.use_markup = True
        footer.pack_start(self.error_text, expand=False)

        button_box = gtk.Alignment(xalign=0.5)
        button_box.show()
        footer.pack_start(button_box, expand=False)
        self.cancel_button = gtk.Button(stock=gtk.STOCK_STOP)
        button_box.add(self.cancel_button)

        self.connect('realize', self.__realize_cb)

        screen = gtk.gdk.screen_get_default()
        screen.connect('size-changed', self.__size_changed_cb)

        self._home = shell.get_model()
        self._home.connect('active-activity-changed',
                           self.__active_activity_changed_cb)

        self.connect('destroy', self.__destroy_cb)

        self._update_size()

    def show(self):
        self.present()

    def _update_size(self):
        self.resize(gtk.gdk.screen_width(), gtk.gdk.screen_height())

    def __realize_cb(self, widget):
        wm.set_activity_id(widget.window, str(self._activity_id))
        widget.window.property_change('_SUGAR_WINDOW_TYPE', 'STRING', 8,
                                      gtk.gdk.PROP_MODE_REPLACE, 'launcher')

    def __size_changed_cb(self, screen):
        self._update_size()

    def __active_activity_changed_cb(self, model, activity):
        if activity.get_activity_id() == self._activity_id:
            self._activity_icon.props.paused = False
        else:
            self._activity_icon.props.paused = True

    def __destroy_cb(self, box):
        self._activity_icon.props.pulsing = False
        self._home.disconnect_by_func(self.__active_activity_changed_cb)

class LaunchWindow(Gtk.Window):

    def __init__(self, activity_id, icon_path, icon_color):
        Gtk.Window.__init__(self)
        self.set_has_resize_grip(False)

        self.props.type_hint = Gdk.WindowTypeHint.SPLASHSCREEN
        self.modify_bg(Gtk.StateType.NORMAL, style.COLOR_WHITE.get_gdk_color())

        canvas = Gtk.VBox()
        canvas.show()
        self.add(canvas)

        bar_size = Gdk.Screen.height() / 5 * 2

        header = Gtk.VBox()
        header.set_size_request(-1, bar_size)
        header.show()
        canvas.pack_start(header, False, True, 0)

        box = Gtk.HBox()
        box.set_size_request(Gdk.Screen.width() / 5, -1)
        box.show()
        canvas.pack_start(box, True, True, 0)

        self._activity_id = activity_id

        self._activity_icon = PulsingIcon(file=icon_path,
                                          pixel_size=style.XLARGE_ICON_SIZE,
                                          interval=_INTERVAL)
        self._activity_icon.set_base_color(icon_color)
        self._activity_icon.set_zooming(style.SMALL_ICON_SIZE,
                                        style.XLARGE_ICON_SIZE, 10)
        self._activity_icon.set_pulsing(True)
        self._activity_icon.show()
        box.pack_start(self._activity_icon, True, False, 0)

        footer = Gtk.VBox(spacing=style.DEFAULT_SPACING)
        footer.set_size_request(-1, bar_size)
        footer.show()
        canvas.pack_end(footer, False, True, 0)

        self.error_text = Gtk.Label()
        self.error_text.props.use_markup = True
        footer.pack_start(self.error_text, False, True, 0)

        button_box = Gtk.Alignment.new(0.5, 0, 0, 0)
        button_box.show()
        footer.pack_start(button_box, False, True, 0)
        self.cancel_button = Gtk.Button(stock=Gtk.STOCK_STOP)
        button_box.add(self.cancel_button)

        self.connect('realize', self.__realize_cb)

        screen = Gdk.Screen.get_default()
        screen.connect('size-changed', self.__size_changed_cb)

        self._home = shell.get_model()
        self._home.connect('active-activity-changed',
                           self.__active_activity_changed_cb)

        self.connect('destroy', self.__destroy_cb)

        self._update_size()

    def show(self):
        self.present()

    def _update_size(self):
        self.resize(Gdk.Screen.width(), Gdk.Screen.height())

    def __realize_cb(self, widget):
        SugarExt.wm_set_activity_id(widget.get_window().get_xid(),
                                    str(self._activity_id))

    def __size_changed_cb(self, screen):
        self._update_size()

    def __active_activity_changed_cb(self, model, activity):
        if activity.get_activity_id() == self._activity_id:
            self._activity_icon.props.paused = False
        else:
            self._activity_icon.props.paused = True

    def __destroy_cb(self, box):
        self._activity_icon.props.pulsing = False
        self._home.disconnect_by_func(self.__active_activity_changed_cb)