lib/python/Components/Sources/EventInfo.py

   1 from Components.PerServiceDisplay import PerServiceBase
   2 from Tools.Event import Event
   3 from enigma import iPlayableService
   4 from Source import Source
   5
   6 from time import time
   7
   8 class EventInfo(PerServiceBase, Source, object):
   9         NOW = 0
  10         NEXT = 1
  11
  12         def __init__(self, navcore, now_or_next):
  13                 Source.__init__(self)
  14                 PerServiceBase.__init__(self, navcore,
  15                         {
  16                                 iPlayableService.evStart: self.gotEvent,
  17                                 iPlayableService.evUpdatedEventInfo: self.gotEvent,
  18                                 iPlayableService.evEnd: self.gotEvent
  19                         }, with_event=True)
  20
  21                 self.now_or_next = now_or_next
  22
  23         def getEvent(self):
  24                 if self.cache is None:
  25                         service = self.navcore.getCurrentService()
  26                         info = service and service.info()
  27                         self.cache = (True, info and info.getEvent(self.now_or_next)) # we always store a tuple for negative caching
  28
  29                 return self.cache[1]
  30
  31         event = property(getEvent)
  32
  33         def gotEvent(self, what):
  34                 if what in [iPlayableService.evStart, iPlayableService.evEnd]:
  35                         self.changed((self.CHANGED_CLEAR,))
  36                 else:
  37                         self.changed((self.CHANGED_ALL,))