lib/python/Screens/HelpMenu.py

   1 from Screen import Screen
   2
   3 from Components.Pixmap import *
   4 from Components.Pixmap import Pixmap
   5 from Components.Pixmap import MovingPixmap
   6 from Components.Label import Label
   7 from Components.Slider import Slider
   8 from Components.ActionMap import ActionMap
   9 from Components.HelpMenuList import HelpMenuList
  10 import string
  11 from xml.sax import make_parser
  12 from xml.sax.handler import ContentHandler
  13 from Components.MenuList import MenuList
  14
  15 class HelpMenu(Screen):
  16         def __init__(self, session, list):
  17                 Screen.__init__(self, session)
  18                 self.onSelChanged = [ ]
  19
  20                 self["list"] = HelpMenuList(list, self.close)
  21                 self["list"].onSelChanged.append(self.SelectionChanged)
  22
  23                 self["rc"] = Pixmap()
  24                 self["arrowup"] = MovingPixmap()
  25
  26                 self["actions"] = ActionMap(["WizardActions"],
  27                 {
  28                         "ok": self["list"].ok,
  29                         "back": self.close,
  30                 }, -1)
  31
  32         def SelectionChanged(self):
  33                 selection = self["list"].getCurrent()[3]
  34                 if selection is None:
  35                         self["arrowup"].instance.hide()
  36                 else:
  37                         self["arrowup"].moveTo(selection[1], selection[2], 1)
  38                         self["arrowup"].startMoving()
  39                         self["arrowup"].instance.show()
  40
  41 class HelpableScreen:
  42         def __init__(self):
  43                 self["helpActions"] = ActionMap( [ "HelpActions" ],
  44                         {
  45                                 "displayHelp": self.showHelp,
  46                         })
  47         def showHelp(self):
  48                 self.session.openWithCallback(self.callHelpAction, HelpMenu, self.helpList)
  49         def callHelpAction(self, *args):
  50                 if len(args):
  51                         (actionmap, context, action) = args
  52                         actionmap.action(context, action)