ignore show requests when no instance available yet
authorFelix Domke <tmbinc@elitedvb.net>
Mon, 23 Apr 2007 21:56:34 +0000 (21:56 +0000)
committerFelix Domke <tmbinc@elitedvb.net>
Mon, 23 Apr 2007 21:56:34 +0000 (21:56 +0000)
lib/python/Screens/Screen.py

index 797acbc..46b94fd 100644 (file)
@@ -12,26 +12,26 @@ class Screen(dict, HTMLSkin, GUISkin):
                self.skinName = self.__class__.__name__
                self.session = session
                GUISkin.__init__(self)
-               
+
                self.onClose = [ ]
                self.onFirstExecBegin = [ ]
                self.onExecBegin = [ ]
                self.onShown = [ ]
-               
+
                self.onShow = [ ]
                self.onHide = [ ]
-               
+
                self.execing = False
                self.shown = False
-               
+
                self.renderer = [ ]
-               
+
                # in order to support screens *without* a help,
                # we need the list in every screen. how ironic.
                self.helpList = [ ]
-               
+
                self.close_on_next_exec = None
-               
+
                # stand alone screens (for example web screens)
                # don't care about having or not having focus.
                self.stand_alone = False
@@ -114,7 +114,7 @@ class Screen(dict, HTMLSkin, GUISkin):
                self.instance.setFocus(o.instance)
 
        def show(self):
-               if self.shown:
+               if self.shown or not self.instance:
                        return
                self.shown = True
                self.instance.show()
@@ -125,7 +125,7 @@ class Screen(dict, HTMLSkin, GUISkin):
                                val.onShow()
 
        def hide(self):
-               if not self.shown:
+               if not self.shown or not self.instance:
                        return
                self.shown = False
                self.instance.hide()