+import skin
+from GUIComponent import *
+
+from enigma import *
+
+class Widget(GUIComponent):
+
+ SHOWN = 0
+ HIDDEN = 1
+
+ def __init__(self):
+ GUIComponent.__init__(self)
+ self.instance = None
+ self.state = self.SHOWN
+
+ def GUIcreate(self, parent):
+ self.instance = self.createWidget(parent)
+
+ def GUIdelete(self):
+ self.removeWidget(self.instance)
+ self.instance = None
+
+ def removeWidget(self, w):
+ pass
+
+ def showWidget(self):
+ self.state = self.SHOWN
+ self.instance.show()
+
+ def hideWidget(self):
+ self.state = self.HIDDEN
+ self.instance.hide()
+
+ def removeWidget(self, instance):
+ pass
+
+class ConditionalWidget(Widget):
+ def __init__(self, withTimer = True):
+ Widget.__init__(self)
+
+ self.setConnect(None)
+
+ if (withTimer):
+ self.conditionCheckTimer = eTimer()
+ self.conditionCheckTimer.timeout.get().append(self.update)
+ self.conditionCheckTimer.start(1000)
+
+ def setConnect(self, conditionalFunction):
+ self.conditionalFunction = conditionalFunction
+
+ def activateCondition(self, condition):
+ if (condition):
+ if (self.state == self.HIDDEN):
+ self.showWidget()
+ else:
+ if (self.state == self.SHOWN):
+ self.hideWidget()
+
+ def update(self):
+ if (self.conditionalFunction != None):
+ try:
+ self.conditionalFunction() # check, if the conditionalfunction is still valid
+ except:
+ self.conditionalFunction = None
+ self.activateCondition(False)
+
+ self.activateCondition(self.conditionalFunction())