text: # (c) Copyright 2015 Hewlett-Packard Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  from django.conf import settings
  
  from django_pyscss.compressor import DjangoScssFilter
  from django_pyscss import DjangoScssCompiler
  
  from scss.namespace import Namespace
  from scss.types import String
  
  import six
  
  
  class HorizonScssFilter(DjangoScssFilter):
      def __init__(self, *args, **kwargs):
          super(HorizonScssFilter, self).__init__(*args, **kwargs)
  
          self.namespace = Namespace()
  
          # Add variables to the SCSS Global Namespace Here
          self.namespace.set_variable(
              '$static_url',
              String(six.text_type(settings.STATIC_URL))
          )
  
      # Create a compiler with the right namespace
      @property
      def compiler(self):
          return DjangoScssCompiler(
              namespace=self.namespace
          )
  