+ self["SubserviceQuickzapAction"] = HelpableActionMap(self, "InfobarSubserviceQuickzapActions",
+ {
+ "nextSubservice": (self.nextSubservice, _("Switch to next subservice")),
+ "prevSubservice": (self.prevSubservice, _("Switch to previous subservice"))
+ }, -1)
+ self["SubserviceQuickzapAction"].setEnabled(False)
+
+ self.session.nav.event.append(self.checkSubservicesAvail) # we like to get service events
+
+ def checkSubservicesAvail(self, ev):
+ if ev == iPlayableService.evUpdatedEventInfo:
+ service = self.session.nav.getCurrentService()
+ subservices = service.subServices()
+ if subservices.getNumberOfSubservices() == 0:
+ self["SubserviceQuickzapAction"].setEnabled(False)
+
+ def nextSubservice(self):
+ self.changeSubservice(+1)
+
+ def prevSubservice(self):
+ self.changeSubservice(-1)
+
+ def changeSubservice(self, direction):
+ service = self.session.nav.getCurrentService()
+ subservices = service.subServices()
+ n = subservices.getNumberOfSubservices()
+ if n > 0:
+ selection = -1
+ ref = self.session.nav.getCurrentlyPlayingServiceReference()
+ for x in range(n):
+ if subservices.getSubservice(x).toString() == ref.toString():
+ selection = x
+ if selection != -1:
+ selection += direction
+ if selection >= n:
+ selection=0
+ elif selection < 0:
+ selection=n-1
+ newservice = subservices.getSubservice(selection)
+ if newservice.valid():
+ del subservices
+ del service
+ self.session.nav.playService(newservice)
+