lib/python/Components/PerServiceDisplay.py

   1 from GUIComponent import *
   2 from VariableText import *
   3 from VariableValue import *
   4
   5 from enigma import iPlayableService
   6 from enigma import eLabel, eSlider, eTimer
   7
   8 class PerServiceBase(object):
   9         def __init__(self, navcore, eventmap, with_event=False):
  10                 self.eventmap = eventmap
  11                 self.navcore = navcore
  12                 self.navcore.event.append(self.event_callback)
  13                 self.poll_timer = eTimer()
  14                 self.poll_timer.timeout.get().append(self.poll)
  15                 self.with_event = with_event
  16
  17                 # start with stopped state, so simulate that
  18                 self.event_callback(iPlayableService.evEnd)
  19
  20         def destroy(self):
  21                 self.navcore.event.remove(self.event_callback)
  22
  23         def event_callback(self, ev):
  24                 # loop up if we need to handle this event
  25                 if self.eventmap.has_key(ev):
  26                         # call handler
  27                         if self.with_event:
  28                                 self.eventmap[ev](ev)
  29                         else:
  30                                 self.eventmap[ev]()
  31
  32         def enablePolling(self, interval=60000):
  33                 if interval:
  34                         self.poll_timer.start(interval)
  35                 else:
  36                         self.poll_timer.stop()
  37
  38         def disablePolling(self):
  39                 self.enablePolling(interval=0)
  40
  41         def poll(self):
  42                 pass
  43
  44 class PerServiceDisplay(PerServiceBase, VariableText, GUIComponent):
  45         """Mixin for building components which display something which changes on navigation events, for example "service name" """
  46         def __init__(self, navcore, eventmap):
  47                 GUIComponent.__init__(self)
  48                 VariableText.__init__(self)
  49                 PerServiceBase.__init__(self, navcore, eventmap)
  50
  51         GUI_WIDGET = eLabel
  52
  53 class PerServiceDisplayProgress(PerServiceBase, VariableValue, GUIComponent):
  54         def __init__(self, navcore, eventmap):
  55                 GUIComponent.__init__(self)
  56                 VariableValue.__init__(self)
  57                 PerServiceBase.__init__(self, navcore, eventmap)
  58                 self.eventmap = eventmap
  59                 self.navcore = navcore
  60                 self.navcore.event.append(self.event)
  61
  62                 # start with stopped state, so simulate that
  63                 self.event(iPlayableService.evEnd)
  64
  65         GUI_WIDGET = eSlider