lib/python/Components/HelpMenuList.py

   1 from GUIComponent import *
   2
   3 from enigma import eListboxPythonMultiContent, eListbox, gFont
   4
   5 from Tools.KeyBindings import queryKeyBinding, getKeyDescription
   6 #getKeyPositions
   7
   8 # [ ( actionmap, context, [(action, help), (action, help), ...] ), (actionmap, ... ), ... ]
   9
  10 class HelpMenuList(GUIComponent):
  11         def __init__(self, list, callback):
  12                 GUIComponent.__init__(self)
  13                 self.onSelChanged = [ ]
  14                 self.l = eListboxPythonMultiContent()
  15                 self.callback = callback
  16
  17                 l = [ ]
  18                 for (actionmap, context, actions) in list:
  19                         for (action, help) in actions:
  20                                 entry = [ ]
  21
  22                                 buttons = queryKeyBinding(context, action)
  23
  24                                 name = None
  25                                 flags = 0
  26
  27                                 for n in buttons:
  28                                         (name, flags) = (getKeyDescription(n[0]), n[1])
  29                                         if name is not None:
  30                                                 break
  31
  32                                 if flags & 8: # for long keypresses, prepend l_ into the key name.
  33                                         name = ("l_" + name[0], name[1], name[2])
  34
  35                                 entry.append( (actionmap, context, action, name ) )
  36                                 entry.append( (eListboxPythonMultiContent.TYPE_TEXT, 0, 0, 400, 28, 0, 0, help) )
  37
  38                                 l.append(entry)
  39
  40                 self.l.setList(l)
  41
  42                 self.l.setFont(0, gFont("Regular", 26))
  43                 self.l.setItemHeight(42)
  44
  45         def ok(self):
  46                 # a list entry has a "private" tuple as first entry...
  47                 l = self.getCurrent()
  48                 if l is None:
  49                         return
  50                 # ...containing (Actionmap, Context, Action, keydata).
  51                 # we returns this tuple to the callback.
  52                 self.callback(l[0], l[1], l[2])
  53
  54         def getCurrent(self):
  55                 sel = self.l.getCurrentSelection()
  56                 return sel and sel[0]
  57
  58         GUI_WIDGET = eListbox
  59
  60         def postWidgetCreate(self, instance):
  61                 instance.setContent(self.l)
  62
  63                 instance.selectionChanged.get().append(self.selectionChanged)
  64
  65         def selectionChanged(self):
  66                 for x in self.onSelChanged:
  67                         x()