translations

[enigma2.git] / lib / python / Components / ActionMap.py

diff --git a/lib/python/Components/ActionMap.py b/lib/python/Components/ActionMap.py
index 2ed2fcc31d719ee7f0818113a4b7d54aa306fa80..046a92d98ee2cf88b68b041e0e5e8dec9f8bf123 100644 (file)
--- a/lib/python/Components/ActionMap.py
+++ b/lib/python/Components/ActionMap.py
@@ -33,3 +33,31 @@ class NumberActionMap(ActionMap):
                        return 1
                else:
                        return ActionMap.action(self, contexts, action)
+
+class HelpableActionMap(ActionMap):
+       """An Actionmap which automatically puts the actions into the helpList.
+
+       Note that you can only use ONE context here!"""
+       
+       # sorry for this complicated code.
+       # it's not more than converting a "documented" actionmap 
+       # (where the values are possibly (function, help)-tuples)
+       # into a "classic" actionmap, where values are just functions.
+       # the classic actionmap is then passed to the ActionMap constructor,
+       # the collected helpstrings (with correct context, action) is
+       # added to the screen's "helpList", which will be picked up by
+       # the "HelpableScreen".
+       def __init__(self, parent, context, actions = { }, prio=0):
+               alist = [ ]
+               adict = { }
+               for (action, funchelp) in actions.iteritems():
+                       # check if this is a tuple
+                       if type(funchelp) is type(()):
+                               alist.append((action, funchelp[1]))
+                               adict[action] = funchelp[0]
+                       else:
+                               adict[action] = funchelp
+
+               ActionMap.__init__(self, [context], adict, prio)
+
+               parent.helpList.append((self, context, alist))