gistfile1.txt

class StopButton(ToolButton):

    def __init__(self, activity, **kwargs):
        ToolButton.__init__(self, 'activity-stop', **kwargs)
        self.props.tooltip = _('Stop')
        self.props.accelerator = '<Ctrl>Q'
        self.connect('clicked', self.__stop_button_clicked_cb, activity)

    def __stop_button_clicked_cb(self, button, activity):

        self._set_alert(activity)
        

    def _set_alert(self, activity):
        alert = SaveAsAlert()
        alert.props.title = _('Save As')
        message = _('Would you like to save the instance ?')
        alert.props.msg = message