#------------------------------------------------------------------------------
# Copyright (c) 2009, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license.  The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Evan Patterson
# Date: 06/29/09
#------------------------------------------------------------------------------

# ETS imports
from traits.api import implements
from pyface.i_clipboard import IClipboard, BaseClipboard


class Clipboard(BaseClipboard):
    """ A dummy clipboard implementationf for the null backend.
    """

    implements(IClipboard)

    #---------------------------------------------------------------------------
    #  'data' property methods:
    #---------------------------------------------------------------------------

    def _get_has_data(self):
        return False

    #---------------------------------------------------------------------------
    #  'object_data' property methods:
    #---------------------------------------------------------------------------

    def _get_object_data(self):
        pass

    def _set_object_data(self, data):
        pass

    def _get_has_object_data(self):
        return False

    def _get_object_type(self):
        return ''

    #---------------------------------------------------------------------------
    #  'text_data' property methods:
    #---------------------------------------------------------------------------

    def _get_text_data(self):
        return False

    def _set_text_data(self, data):
        pass

    def _get_has_text_data(self):
        pass

    #---------------------------------------------------------------------------
    #  'file_data' property methods:
    #---------------------------------------------------------------------------

    def _get_file_data(self):
        pass

    def _set_file_data(self, data):
        pass

    def _get_has_file_data (self):
        return False