From 14ae9c7897eaefad5caa0cecda762b0a8a9e9d72 Mon Sep 17 00:00:00 2001
From: Stefan Pluecken <stefan.pluecken@multimedia-labs.de>
Date: Tue, 22 Nov 2005 14:18:12 +0000
Subject: [PATCH] add onShown eventlist for executing stuff after the screen is
 drawn use SimpleChannelSelection to select a service in TimerEntry

---
 lib/python/Screens/ChannelSelection.py | 13 ++++++++++++-
 lib/python/Screens/Screen.py           |  4 ++++
 lib/python/Screens/TimerEntry.py       |  7 ++++---
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/lib/python/Screens/ChannelSelection.py b/lib/python/Screens/ChannelSelection.py
index 37f594dc..d3921306 100644
--- a/lib/python/Screens/ChannelSelection.py
+++ b/lib/python/Screens/ChannelSelection.py
@@ -158,7 +158,7 @@ class ChannelSelection(Screen):
 
 		self["actions"] = ChannelActionMap(["ChannelSelectActions", "OkCancelActions", "ContextMenuActions"],
 			{
-				"cancel": self.close,
+				"cancel": self.doClose,
 				"ok": self.channelSelected,
 				"mark": self.doMark,
 				"contextMenu": self.doContext,
@@ -374,11 +374,19 @@ class ChannelSelection(Screen):
 			refstr = ""
 		config.tv.lastservice.value = refstr
 		config.tv.lastservice.save()
+		
+	def doClose(self):
+		self.close()
 
 class SimpleChannelSelection(ChannelSelection):
 	def __init__(self, session, title):
 		ChannelSelection.__init__(self, session)
 		self.title = title
+		self.onShown.append(self.onExecCallback)
+
+	def onExecCallback(self):
+		print "onExecCallback"
+		self.session.currentDialog.instance.setTitle(self.title)
 		
 	def channelSelected(self): # just return selected service
 		ref = self.servicelist.getCurrent()
@@ -386,4 +394,7 @@ class SimpleChannelSelection(ChannelSelection):
 		
 	def doContext(self): # don't show context menu
 		pass
+	
+	def doClose(self):
+		self.close(None)
 		
\ No newline at end of file
diff --git a/lib/python/Screens/Screen.py b/lib/python/Screens/Screen.py
index 6e5ac21d..13e31d67 100644
--- a/lib/python/Screens/Screen.py
+++ b/lib/python/Screens/Screen.py
@@ -13,6 +13,7 @@ class Screen(dict, HTMLSkin, GUISkin):
 		
 		self.onClose = [ ]
 		self.onExecBegin = [ ]
+		self.onShown = [ ]
 		
 		# in order to support screens *without* a help,
 		# we need the list in every screen. how ironic.
@@ -25,6 +26,9 @@ class Screen(dict, HTMLSkin, GUISkin):
 #		self.session = session
 		for (name, val) in self.items():
 			val.execBegin()
+
+		for x in self.onShown:
+			x()
 	
 	def execEnd(self):
 		for (name, val) in self.items():
diff --git a/lib/python/Screens/TimerEntry.py b/lib/python/Screens/TimerEntry.py
index a03435ee..8b4f6b4f 100644
--- a/lib/python/Screens/TimerEntry.py
+++ b/lib/python/Screens/TimerEntry.py
@@ -178,9 +178,10 @@ class TimerEntry(Screen):
 			self.session.openWithCallback(self.finishedChannelSelection, ChannelSelection.SimpleChannelSelection, _("Select channel to record from"))
 
 	def finishedChannelSelection(self, args):
-		self.timer.service_ref = ServiceReference(args)
-		config.timerentry.service.vals = (str(self.timer.service_ref.getServiceName()),)
-		self["config"].invalidate(config.timerentry.service)
+		if (args != None):
+			self.timer.service_ref = ServiceReference(args)
+			config.timerentry.service.vals = (str(self.timer.service_ref.getServiceName()),)
+			self["config"].invalidate(config.timerentry.service)
 
 	def keyNumberGlobal(self, number):
 		print "You pressed number " + str(number)
-- 
2.30.2