lib/python/Screens/Screen.py

   1 from Components.HTMLSkin import *
   2 from Components.GUISkin import *
   3
   4 import sys
   5
   6 class Screen(dict, HTMLSkin, GUISkin):
   7         """ bla """
   8
   9         def __init__(self, session):
  10                 self.skinName = self.__class__.__name__
  11                 self.session = session
  12                 GUISkin.__init__(self)
  13
  14                 # in order to support screens *without* a help,
  15                 # we need the list in every screen. how ironic.
  16                 self.helpList = [ ]
  17
  18         def execBegin(self):
  19 #               assert self.session == None, "a screen can only exec one per time"
  20 #               self.session = session
  21                 for (name, val) in self.items():
  22                         val.execBegin()
  23
  24         def execEnd(self):
  25                 for (name, val) in self.items():
  26                         val.execEnd()
  27 #               assert self.session != None, "execEnd on non-execing screen!"
  28 #               self.session = None
  29
  30         # never call this directly - it will be called from the session!
  31         def doClose(self):
  32                 # fixup circular references
  33                 del self.helpList
  34                 GUISkin.close(self)
  35
  36                 del self.session
  37                 for (name, val) in self.items():
  38                         del self[name]
  39
  40         def close(self, *retval):
  41                 self.session.close(*retval)
  42
  43         def setFocus(self, o):
  44                 self.instance.setFocus(o.instance)