lib/python/Components/PerServiceDisplay.py

   1 from GUIComponent import GUIComponent
   2 from VariableText import VariableText
   3 from VariableValue import VariableValue
   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.callback.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                 func = self.eventmap.get(ev)
  26                 if func:
  27                         # call handler
  28                         if self.with_event:
  29                                 func(ev)
  30                         else:
  31                                 func()
  32
  33         def enablePolling(self, interval=60000):
  34                 if interval:
  35                         self.poll_timer.start(interval)
  36                 else:
  37                         self.poll_timer.stop()
  38
  39         def disablePolling(self):
  40                 self.enablePolling(interval=0)
  41
  42         def poll(self):
  43                 pass
  44
  45 class PerServiceDisplay(PerServiceBase, VariableText, GUIComponent):
  46         """Mixin for building components which display something which changes on navigation events, for example "service name" """
  47         def __init__(self, navcore, eventmap):
  48                 GUIComponent.__init__(self)
  49                 VariableText.__init__(self)
  50                 PerServiceBase.__init__(self, navcore, eventmap)
  51
  52         def destroy(self):
  53                 PerServiceBase.destroy(self)
  54                 GUIComponent.destroy(self)
  55
  56         GUI_WIDGET = eLabel
  57
  58 class PerServiceDisplayProgress(PerServiceBase, VariableValue, GUIComponent):
  59         def __init__(self, navcore, eventmap):
  60                 GUIComponent.__init__(self)
  61                 VariableValue.__init__(self)
  62                 PerServiceBase.__init__(self, navcore, eventmap)
  63                 self.eventmap = eventmap
  64                 self.navcore = navcore
  65                 self.navcore.event.append(self.event)
  66
  67                 # start with stopped state, so simulate that
  68                 self.event(iPlayableService.evEnd)
  69
  70         GUI_WIDGET = eSlider
  71
  72         def destroy(self):
  73                 PerServiceBase.destroy(self)
  74                 GUIComponent.destroy(self)