some cleanups,

add missing destroy calls,
fix incomplete destroy calls,
small speedup

3 files changed, 13 insertions, 23 deletions

diff --git a/lib/python/Screens/InfoBarGenerics.py b/lib/python/Screens/InfoBarGenerics.py
index e7f71daf..2227f8b9 100644
--- a/lib/python/Screens/InfoBarGenerics.py
+++ b/lib/python/Screens/InfoBarGenerics.py
@@ -1619,16 +1619,18 @@ class InfoBarSubserviceSelection:
 			}, -1)
 		self["SubserviceQuickzapAction"].setEnabled(False)
 
-		self.session.nav.event.append(self.checkSubservicesAvail) # we like to get service events
+		self.__event_tracker = ServiceEventTracker(screen=self, eventmap=
+			{
+				iPlayableService.evUpdatedInfo: self.checkSubservicesAvail
+			})
 
 		self.bsel = None
 
-	def checkSubservicesAvail(self, ev):
-		if ev == iPlayableService.evUpdatedEventInfo:
-			service = self.session.nav.getCurrentService()
-			subservices = service and service.subServices()
-			if not subservices or subservices.getNumberOfSubservices() == 0:
-				self["SubserviceQuickzapAction"].setEnabled(False)
+	def checkSubservicesAvail(self):
+		service = self.session.nav.getCurrentService()
+		subservices = service and service.subServices()
+		if not subservices or subservices.getNumberOfSubservices() == 0:
+			self["SubserviceQuickzapAction"].setEnabled(False)
 
 	def nextSubservice(self):
 		self.changeSubservice(+1)
diff --git a/lib/python/Screens/Screen.py b/lib/python/Screens/Screen.py
index 508309db..287847ba 100644
--- a/lib/python/Screens/Screen.py
+++ b/lib/python/Screens/Screen.py
@@ -75,10 +75,11 @@ class Screen(dict, GUISkin):
 				x()
 	
 	def execEnd(self):
+		active_components = self.active_components
 #		for (name, val) in self.items():
-		for val in self.active_components:
+		self.active_components = None
+		for val in active_components:
 			val.execEnd()
-		del self.active_components
 #		assert self.session != None, "execEnd on non-execing screen!"
 #		self.session = None
 		self.execing = False
diff --git a/lib/python/Screens/SessionGlobals.py b/lib/python/Screens/SessionGlobals.py
index a9636cac..d65acb4d 100644
--- a/lib/python/Screens/SessionGlobals.py
+++ b/lib/python/Screens/SessionGlobals.py
@@ -1,4 +1,3 @@
-from enigma import iPlayableService
 from Screens.Screen import Screen
 from Components.Sources.CurrentService import CurrentService
 from Components.Sources.EventInfo import EventInfo
@@ -16,20 +15,8 @@ class SessionGlobals(Screen):
 		self["Event_Now"] = EventInfo(session.nav, EventInfo.NOW)
 		self["Event_Next"] = EventInfo(session.nav, EventInfo.NEXT)
 		self["FrontendStatus"] = FrontendStatus(service_source = session.nav.getCurrentService)
-		self["FrontendInfo"] = FrontendInfo(service_source = session.nav.getCurrentService)
+		self["FrontendInfo"] = FrontendInfo(navcore = session.nav)
 		self["VideoPicture"] = Source()
 		self["TunerInfo"] = TunerInfo()
 		self["RecordState"] = RecordState(session)
-		session.nav.event.append(self.serviceEvent)
-		self.service_state = 0
-
 		FrontpanelLed().connect(self["RecordState"])
-
-	def serviceEvent(self, evt):
-		if evt == iPlayableService.evStart:
-			self.service_state = 1
-		elif evt == iPlayableService.evEnd:
-			self.service_state = 0
-		elif evt == iPlayableService.evUpdatedInfo and self.service_state == 1:
-			self.service_state = 2
-			self["FrontendInfo"].updateFrontendData()