self.session.nav.playService(nref)
self.saveRoot()
self.saveChannel()
- tmp=self.servicePath[:]
- tmp.append(nref)
- try:
- del self.history[self.history_pos+1:]
- except:
- pass
- self.history.append(tmp)
- hlen = len(self.history)
- if hlen > HISTORYSIZE:
- del self.history[0]
- hlen -= 1
- self.history_pos = hlen-1
+ if self.servicePath is not None:
+ tmp=self.servicePath[:]
+ tmp.append(nref)
+ try:
+ del self.history[self.history_pos+1:]
+ except:
+ pass
+ self.history.append(tmp)
+ hlen = len(self.history)
+ if hlen > HISTORYSIZE:
+ del self.history[0]
+ hlen -= 1
+ self.history_pos = hlen-1
def historyBack(self):
hlen = len(self.history)