lib/python/Screens/Wizard.py

   1 from Screen import Screen
   2
   3 import string
   4
   5 from Screens.HelpMenu import HelpableScreen
   6 from Components.Label import Label
   7 from Components.Slider import Slider
   8 from Components.ActionMap import HelpableActionMap, NumberActionMap
   9 from Components.config import config, configElementBoolean
  10 from Components.Pixmap import *
  11 from Components.MenuList import MenuList
  12 from Components.ConfigList import ConfigList
  13
  14 from xml.sax import make_parser
  15 from xml.sax.handler import ContentHandler
  16
  17 config.misc.firstrun = configElementBoolean("config.misc.firstrun", 1);
  18
  19 class Wizard(Screen, HelpableScreen):
  20
  21         class parseWizard(ContentHandler):
  22                 def __init__(self, wizard):
  23                         self.isPointsElement, self.isReboundsElement = 0, 0
  24                         self.wizard = wizard
  25                         self.currContent = ""
  26
  27                 def startElement(self, name, attrs):
  28                         print name
  29                         self.currContent = name
  30                         if (name == "step"):
  31                                 self.lastStep = int(attrs.get('number'))
  32                                 self.wizard[self.lastStep] = {"text": "", "list": [], "config": {"screen": None, "args": None, "type": "" }, "code": ""}
  33                         elif (name == "text"):
  34                                 self.wizard[self.lastStep]["text"] = string.replace(str(attrs.get('value')), "\\n", "\n")
  35                         elif (name == "listentry"):
  36                                 self.wizard[self.lastStep]["list"].append((str(attrs.get('caption')), str(attrs.get('step'))))
  37                         elif (name == "config"):
  38                                 exec "from Screens." + str(attrs.get('module')) + " import *"
  39                                 self.wizard[self.lastStep]["config"]["screen"] = eval(str(attrs.get('screen')))
  40                                 if (attrs.has_key('args')):
  41                                         print "has args"
  42                                         self.wizard[self.lastStep]["config"]["args"] = str(attrs.get('args'))
  43                                 self.wizard[self.lastStep]["config"]["type"] = str(attrs.get('type'))
  44                 def endElement(self, name):
  45                         self.currContent = ""
  46                         if name == 'code':
  47                                 self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"].strip()
  48
  49                 def characters(self, ch):
  50                         if self.currContent == "code":
  51                                  self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"] + ch
  52
  53         def __init__(self, session):
  54                 Screen.__init__(self, session)
  55                 HelpableScreen.__init__(self)
  56
  57                 self.wizard = {}
  58                 parser = make_parser()
  59                 print "Reading " + self.xmlfile
  60                 wizardHandler = self.parseWizard(self.wizard)
  61                 parser.setContentHandler(wizardHandler)
  62                 parser.parse('/usr/share/enigma2/' + self.xmlfile)
  63
  64                 self.numSteps = len(self.wizard)
  65                 self.currStep = 1
  66
  67                 self["text"] = Label()
  68
  69                 self["config"] = ConfigList([])
  70
  71                 self["step"] = Label()
  72
  73                 self["stepslider"] = Slider(1, self.numSteps)
  74
  75                 self.list = []
  76                 self["list"] = MenuList(self.list)
  77
  78                 self.onShown.append(self.updateValues)
  79
  80                 self["actions"] = NumberActionMap(["WizardActions", "NumberActions"],
  81                 {
  82                         "ok": self.ok,
  83                         "back": self.back,
  84                         "left": self.left,
  85                         "right": self.right,
  86                         "up": self.up,
  87                         "down": self.down,
  88                         "1": self.keyNumberGlobal,
  89                         "2": self.keyNumberGlobal,
  90                         "3": self.keyNumberGlobal,
  91                         "4": self.keyNumberGlobal,
  92                         "5": self.keyNumberGlobal,
  93                         "6": self.keyNumberGlobal,
  94                         "7": self.keyNumberGlobal,
  95                         "8": self.keyNumberGlobal,
  96                         "9": self.keyNumberGlobal,
  97                         "0": self.keyNumberGlobal
  98                 }, -1)
  99
 100                 #self["actions"] = HelpableActionMap(self, "OkCancelActions",
 101                         #{
 102                                 #"ok": (self.ok, _("Close this Screen...")),
 103                         #})
 104
 105         def back(self):
 106                 self.currStep -= 1
 107                 if self.currStep < 1:
 108                         self.currStep = 1
 109                 self.updateValues()
 110
 111         def ok(self):
 112                 print "OK"
 113                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 114                         try: # don't die, if no run() is available
 115                                 self.configInstance.run()
 116                         except:
 117                                 print "Failed to run configInstance"
 118
 119                 if (len(self.wizard[self.currStep]["list"]) > 0):
 120                         nextStep = self.wizard[self.currStep]["list"][self["list"].l.getCurrentSelectionIndex()][1]
 121                         if nextStep == "end":
 122                                 self.currStep = self.numSteps
 123                         elif nextStep == "next":
 124                                 pass
 125                         else:
 126                                 self.currStep = int(nextStep) - 1
 127
 128                 if (self.currStep == self.numSteps): # wizard finished
 129                         config.misc.firstrun.value = 0;
 130                         config.misc.firstrun.save()
 131                         self.session.close()
 132                 else:
 133                         self.currStep += 1
 134                         self.updateValues()
 135
 136                 print "Now: " + str(self.currStep)
 137
 138         def keyNumberGlobal(self, number):
 139                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 140                         self.configInstance.keyNumberGlobal(number)
 141
 142         def left(self):
 143                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 144                         self.configInstance.keyLeft()
 145                 print "left"
 146
 147         def right(self):
 148                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 149                         self.configInstance.keyRight()
 150                 print "right"
 151
 152         def up(self):
 153                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 154                         self["config"].instance.moveSelection(self["config"].instance.moveUp)
 155                 elif (len(self.wizard[self.currStep]["list"]) > 0):
 156                         self["list"].instance.moveSelection(self["list"].instance.moveUp)
 157                 print "up"
 158
 159         def down(self):
 160                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 161                         self["config"].instance.moveSelection(self["config"].instance.moveDown)
 162                 elif (len(self.wizard[self.currStep]["list"]) > 0):
 163                         self["list"].instance.moveSelection(self["list"].instance.moveDown)
 164                 print "down"
 165
 166         def updateValues(self):
 167                 print "Updating values in step " + str(self.currStep)
 168                 self["step"].setText(_("Step ") + str(self.currStep) + "/" + str(self.numSteps))
 169                 self["stepslider"].setValue(self.currStep)
 170
 171                 print _(self.wizard[self.currStep]["text"])
 172                 self["text"].setText(_(self.wizard[self.currStep]["text"]))
 173
 174                 if self.wizard[self.currStep]["code"] != "":
 175                         print self.wizard[self.currStep]["code"]
 176                         exec(self.wizard[self.currStep]["code"])
 177
 178                 self["list"].instance.setZPosition(1)
 179                 self.list = []
 180                 if (len(self.wizard[self.currStep]["list"]) > 0):
 181                         self["list"].instance.setZPosition(2)
 182                         for x in self.wizard[self.currStep]["list"]:
 183                                 self.list.append((_(x[0]), None))
 184                 self["list"].l.setList(self.list)
 185
 186                 self["config"].instance.setZPosition(1)
 187                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 188                         if self.wizard[self.currStep]["config"]["type"] == "standalone":
 189                                 print "Type is standalone"
 190                                 self.session.openWithCallback(self.ok, self.wizard[self.currStep]["config"]["screen"])
 191                         else:
 192                                 self["config"].instance.setZPosition(2)
 193                                 print self.wizard[self.currStep]["config"]["screen"]
 194                                 if self.wizard[self.currStep]["config"]["args"] == None:
 195                                         self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"])
 196                                 else:
 197                                         self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"], eval(self.wizard[self.currStep]["config"]["args"]))
 198                                 self["config"].l.setList(self.configInstance["config"].list)
 199                                 self.configInstance["config"] = self["config"]
 200                 else:
 201                         self["config"].l.setList([])
 202
 203 class WizardManager:
 204         def __init__(self):
 205                 self.wizards = []
 206
 207         def registerWizard(self, wizard):
 208                 self.wizards.append(wizard)
 209
 210         def getWizards(self):
 211                 if config.misc.firstrun.value:
 212                         return self.wizards
 213                 else:
 214                         return []
 215
 216 wizardManager = WizardManager()