check recursive loopthrough.

diff --git a/lib/python/Screens/Satconfig.py b/lib/python/Screens/Satconfig.py
index a5712dc..bce6525 100644 (file)
--- a/lib/python/Screens/Satconfig.py
+++ b/lib/python/Screens/Satconfig.py
@@ -367,7 +367,40 @@ class NimSetup(Screen, ConfigListScreen, ServiceStopScreen):
                        self.fillListWithAdvancedSatEntrys(Sat)
                self["config"].list = self.list
 
+       def checkLoopthrough(self):
+               if self.nimConfig.configMode.value == "loopthrough":
+                       loopthrough_count = 0
+                       dvbs_slots = nimmanager.getNimListOfType('DVB-S')
+                       dvbs_slots_len = len(dvbs_slots)
+
+                       for x in dvbs_slots:
+                               try:
+                                       nim_slot = nimmanager.nim_slots[x]
+                                       if nim_slot == self.nimConfig:
+                                               self_idx = x
+                                       if nim_slot.config.configMode.value == "loopthrough":
+                                               loopthrough_count += 1
+                               except: pass
+                       if loopthrough_count >= dvbs_slots_len:
+                               return False
+
+               self.slot_dest_list = []
+               def checkRecursiveConnect(slot_id):
+                       if slot_id in self.slot_dest_list:
+                               return False
+                       self.slot_dest_list.append(slot_id)
+                       slot_config = nimmanager.nim_slots[slot_id].config
+                       if slot_config.configMode.value == "loopthrough":
+                               return checkRecursiveConnect(int(slot_config.connectedTo.value))
+                       return True
+
+               return checkRecursiveConnect(self.slotid)
+
        def keySave(self):
+               if not self.checkLoopthrough():
+                       self.session.open(MessageBox, _("The loopthrough setting is wrong."),MessageBox.TYPE_ERROR,timeout=10)
+                       return
+
                old_configured_sats = nimmanager.getConfiguredSats()
                self.run()
                new_configured_sats = nimmanager.getConfiguredSats()