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from Screen import Screen
from Components.Pixmap import Pixmap, MovingPixmap
from Components.Label import Label
from Components.ActionMap import ActionMap
from Components.HelpMenuList import HelpMenuList
class HelpMenu(Screen):
def __init__(self, session, list):
Screen.__init__(self, session)
self.onSelChanged = [ ]
self["list"] = HelpMenuList(list, self.close)
self["list"].onSelChanged.append(self.SelectionChanged)
self["rc"] = Pixmap()
self["arrowup"] = MovingPixmap()
self["arrowup"].hide()
self["sh_arrowup"] = Pixmap()
self["sh_arrowup"].hide()
self["long_key"] = Label("")
self["actions"] = ActionMap(["WizardActions"],
{
"ok": self["list"].ok,
"back": self.close,
}, -1)
def SelectionChanged(self):
selection = self["list"].getCurrent()
selection = selection and selection[3]
arrow = self["arrowup"]
sh_arrow = self["sh_arrowup"]
if selection and selection[0][:3] == "sh_":
sh_arrow.show()
else:
sh_arrow.hide()
if selection and selection[0][:2] == "l_":
self["long_key"].setText(_("Long Keypress"))
else:
self["long_key"].setText("")
if selection is None:
arrow.hide()
else:
arrow.moveTo(selection[1], selection[2], 1)
arrow.startMoving()
arrow.show()
class HelpableScreen:
def __init__(self):
self["helpActions"] = ActionMap( [ "HelpActions" ],
{
"displayHelp": self.showHelp,
})
def showHelp(self):
self.session.openWithCallback(self.callHelpAction, HelpMenu, self.helpList)
def callHelpAction(self, *args):
if len(args):
(actionmap, context, action) = args
actionmap.action(context, action)
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