from zope.component import adapts
from zope.publisher.interfaces.browser import IBrowserRequest
from zope.publisher.browser import BrowserLanguages

from zope.interface import implements

class UILanguage(BrowserLanguages):
    adapts(IBrowserRequest)

    def getPreferredLanguages(self):
        #print BrowserLanguages.getPreferredLanguages(self)
        llang = self.request.get('mdlang', 'et')
        if llang in ['et', 'en']:
            return [llang]
        return [llang]