X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/a029953596adaed49a5b0346acd5a867eff91a57..70a1e41a08a2ba28c40ffe39be6fb02f6d126b07:/lib/python/Components/GUIComponent.py

diff --git a/lib/python/Components/GUIComponent.py b/lib/python/Components/GUIComponent.py
index c900796d..deb8b34a 100644
--- a/lib/python/Components/GUIComponent.py
+++ b/lib/python/Components/GUIComponent.py
@@ -7,6 +7,8 @@ class GUIComponent(object):
 	
 	def __init__(self):
 		self.instance = None
+		self.onVisibilityChange = [ ]
+		self.__visible = 0
 		self.visible = 1
 		self.skinAttributes = None
 	
@@ -50,14 +52,22 @@ class GUIComponent(object):
 		self.instance.setZPosition(z)
 
 	def show(self):
+		old = self.__visible
 		self.__visible = 1
 		if self.instance is not None:
 			self.instance.show()
+		if old != self.__visible:
+			for fnc in self.onVisibilityChange:
+				fnc(True)
 
 	def hide(self):
+		old = self.__visible
 		self.__visible = 0
 		if self.instance is not None:
 			self.instance.hide()
+		if old != self.__visible:
+			for fnc in self.onVisibilityChange:
+				fnc(False)
 
 	def getVisible(self):
 		return self.__visible