'We just need the popup interface here'

def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):

    context.update({'preview': ('no_preview' not in request.GET), 'is_popup': True, 'plugin': obj, 'CMS_MEDIA_URL': get_cms_setting('MEDIA_URL')})
    return super(CMSPluginBase, self).render_change_form(request, context, add, change, form_url, obj)
