fix frontend number query

[enigma2.git] / lib / python / Components / Converter / ConditionalShowHide.py

diff --git a/lib/python/Components/Converter/ConditionalShowHide.py b/lib/python/Components/Converter/ConditionalShowHide.py
index cc98288f57334884c0ef73e458ef56801258944a..2d4b99a228d0b28744d43e59e9efaae65a203e2e 100644 (file)
--- a/lib/python/Components/Converter/ConditionalShowHide.py
+++ b/lib/python/Components/Converter/ConditionalShowHide.py
@@ -1,11 +1,22 @@
 from Converter import Converter
 
 class ConditionalShowHide(Converter, object):
-
        def __init__(self, type):
                Converter.__init__(self, type)
                self.invert = type == "Invert"
 
+       def calcVisibility(self):
+               b = self.source.boolean
+               if b is None:
+                       return True
+               b ^= self.invert
+               return b
+
        def changed(self, what):
+               vis = self.calcVisibility()
                for x in self.downstream_elements:
-                       x.visible = self.source.boolean
+                       x.visible = vis
+
+       def connectDownstream(self, downstream):
+               Converter.connectDownstream(self, downstream)
+               downstream.visible = self.calcVisibility()