lib/python/Screens/Setup.py

   1 from Screen import Screen
   2 from Components.ActionMap import NumberActionMap
   3 from Components.config import config, ConfigNothing
   4 from Components.SystemInfo import SystemInfo
   5 from Components.ConfigList import ConfigListScreen
   6 from Components.Sources.StaticText import StaticText
   7 from enigma import eEnv
   8
   9 import xml.etree.cElementTree
  10
  11 # FIXME: use resolveFile!
  12 # read the setupmenu
  13 try:
  14         # first we search in the current path
  15         setupfile = file('data/setup.xml', 'r')
  16 except:
  17         # if not found in the current path, we use the global datadir-path
  18         setupfile = file(eEnv.resolve('${datadir}/enigma2/setup.xml'), 'r')
  19 setupdom = xml.etree.cElementTree.parse(setupfile)
  20 setupfile.close()
  21
  22 class SetupError(Exception):
  23     def __init__(self, message):
  24         self.msg = message
  25
  26     def __str__(self):
  27         return self.msg
  28
  29 class SetupSummary(Screen):
  30
  31         def __init__(self, session, parent):
  32
  33                 Screen.__init__(self, session, parent = parent)
  34                 self["SetupTitle"] = StaticText(_(parent.setup_title))
  35                 self["SetupEntry"] = StaticText("")
  36                 self["SetupValue"] = StaticText("")
  37                 self.onShow.append(self.addWatcher)
  38                 self.onHide.append(self.removeWatcher)
  39
  40         def addWatcher(self):
  41                 self.parent.onChangedEntry.append(self.selectionChanged)
  42                 self.parent["config"].onSelectionChanged.append(self.selectionChanged)
  43                 self.selectionChanged()
  44
  45         def removeWatcher(self):
  46                 self.parent.onChangedEntry.remove(self.selectionChanged)
  47                 self.parent["config"].onSelectionChanged.remove(self.selectionChanged)
  48
  49         def selectionChanged(self):
  50                 self["SetupEntry"].text = self.parent.getCurrentEntry()
  51                 self["SetupValue"].text = self.parent.getCurrentValue()
  52
  53 class Setup(ConfigListScreen, Screen):
  54
  55         ALLOW_SUSPEND = True
  56
  57         def removeNotifier(self):
  58                 config.usage.setup_level.notifiers.remove(self.levelChanged)
  59
  60         def levelChanged(self, configElement):
  61                 list = []
  62                 self.refill(list)
  63                 self["config"].setList(list)
  64
  65         def refill(self, list):
  66                 xmldata = setupdom.getroot()
  67                 for x in xmldata.findall("setup"):
  68                         if x.get("key") != self.setup:
  69                                 continue
  70                         self.addItems(list, x);
  71                         self.setup_title = x.get("title", "").encode("UTF-8")
  72
  73         def __init__(self, session, setup):
  74                 Screen.__init__(self, session)
  75                 # for the skin: first try a setup_<setupID>, then Setup
  76                 self.skinName = ["setup_" + setup, "Setup" ]
  77
  78                 self.onChangedEntry = [ ]
  79
  80                 self.setup = setup
  81                 list = []
  82                 self.refill(list)
  83
  84                 #check for list.entries > 0 else self.close
  85                 self["key_red"] = StaticText(_("Cancel"))
  86                 self["key_green"] = StaticText(_("OK"))
  87
  88                 self["actions"] = NumberActionMap(["SetupActions"],
  89                         {
  90                                 "cancel": self.keyCancel,
  91                                 "save": self.keySave,
  92                         }, -2)
  93
  94                 ConfigListScreen.__init__(self, list, session = session, on_change = self.changedEntry)
  95
  96                 self.changedEntry()
  97                 self.onLayoutFinish.append(self.layoutFinished)
  98
  99         def layoutFinished(self):
 100                 self.setTitle(_(self.setup_title))
 101
 102         # for summary:
 103         def changedEntry(self):
 104                 for x in self.onChangedEntry:
 105                         x()
 106
 107         def getCurrentEntry(self):
 108                 return self["config"].getCurrent()[0]
 109
 110         def getCurrentValue(self):
 111                 return str(self["config"].getCurrent()[1].getText())
 112
 113         def createSummary(self):
 114                 return SetupSummary
 115
 116         def addItems(self, list, parentNode):
 117                 for x in parentNode:
 118                         if x.tag == 'item':
 119                                 item_level = int(x.get("level", 0))
 120
 121                                 if not self.levelChanged in config.usage.setup_level.notifiers:
 122                                         config.usage.setup_level.notifiers.append(self.levelChanged)
 123                                         self.onClose.append(self.removeNotifier)
 124
 125                                 if item_level > config.usage.setup_level.index:
 126                                         continue
 127
 128                                 requires = x.get("requires")
 129                                 if requires and not SystemInfo.get(requires, False):
 130                                         continue;
 131
 132                                 item_text = _(x.get("text", "??").encode("UTF-8"))
 133                                 b = eval(x.text or "");
 134                                 if b == "":
 135                                         continue
 136                                 #add to configlist
 137                                 item = b
 138                                 # the first b is the item itself, ignored by the configList.
 139                                 # the second one is converted to string.
 140                                 if not isinstance(item, ConfigNothing):
 141                                         list.append( (item_text, item) )
 142
 143 def getSetupTitle(id):
 144         xmldata = setupdom.getroot()
 145         for x in xmldata.findall("setup"):
 146                 if x.get("key") == id:
 147                         return x.get("title", "").encode("UTF-8")
 148         raise SetupError("unknown setup id '%s'!" % repr(id))