git.maemo.org Git - jamaendo/blob - jamaui/settings.py

   1 import cPickle, os
   2 import logging
   3
   4 VERSION = 1
   5 log = logging.getLogger(__name__)
   6
   7 class Settings(object):
   8     defaults = {
   9         'volume':0.5,
  10         'user':None,
  11         'favorites':set([]) # local favorites - until we can sync back
  12         }
  13
  14     def __init__(self):
  15         self.__savename = "/tmp/jaemendo_uisettings"
  16         for k,v in self.defaults.iteritems():
  17             setattr(self, k, v)
  18
  19     def set_filename(self, savename):
  20         self.__savename = savename
  21
  22     def favorite(self, album):
  23         self.favorites.add(('album', album.ID))
  24         self.save()
  25
  26     def load(self):
  27         if not os.path.isfile(self.__savename):
  28             return
  29         try:
  30             f = open(self.__savename)
  31             settings = cPickle.load(f)
  32             f.close()
  33
  34             if settings['version'] > VERSION:
  35                 log.warning("Settings version %s higher than current version (%s)",
  36                             settings['version'], VERSION)
  37
  38             for k in self.defaults.keys():
  39                 if k in settings:
  40                     setattr(self, k, settings[k])
  41         except Exception, e:
  42             log.exception('failed to load settings')
  43
  44     def save(self):
  45         try:
  46             settings = {
  47                 'version':VERSION,
  48                 }
  49             for k in self.defaults.keys():
  50                 settings[k] = getattr(self, k)
  51             f = open(self.__savename, 'w')
  52             cPickle.dump(settings, f)
  53             f.close()
  54         except Exception, e:
  55             log.exception('failed to save settings')
  56
  57 settings = Settings()