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] = {"condition": "", "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                         elif (name == "condition"):
  45                                 pass
  46                 def endElement(self, name):
  47                         self.currContent = ""
  48                         if name == 'code':
  49                                 self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"].strip()
  50                         elif name == 'condition':
  51                                 self.wizard[self.lastStep]["condition"] = self.wizard[self.lastStep]["condition"].strip()
  52
  53                 def characters(self, ch):
  54                         if self.currContent == "code":
  55                                  self.wizard[self.lastStep]["code"] = self.wizard[self.lastStep]["code"] + ch
  56                         elif self.currContent == "condition":
  57                                  self.wizard[self.lastStep]["condition"] = self.wizard[self.lastStep]["condition"] + ch
  58         def __init__(self, session):
  59                 Screen.__init__(self, session)
  60                 HelpableScreen.__init__(self)
  61
  62                 self.wizard = {}
  63                 parser = make_parser()
  64                 print "Reading " + self.xmlfile
  65                 wizardHandler = self.parseWizard(self.wizard)
  66                 parser.setContentHandler(wizardHandler)
  67                 parser.parse('/usr/share/enigma2/' + self.xmlfile)
  68
  69                 self.numSteps = len(self.wizard)
  70                 self.currStep = 1
  71
  72                 self["text"] = Label()
  73
  74                 self["config"] = ConfigList([])
  75
  76                 self["step"] = Label()
  77
  78                 self["stepslider"] = Slider(1, self.numSteps)
  79
  80                 self.list = []
  81                 self["list"] = MenuList(self.list)
  82
  83                 self.onShown.append(self.updateValues)
  84
  85                 self["actions"] = NumberActionMap(["WizardActions", "NumberActions"],
  86                 {
  87                         "ok": self.ok,
  88                         "back": self.back,
  89                         "left": self.left,
  90                         "right": self.right,
  91                         "up": self.up,
  92                         "down": self.down,
  93                         "1": self.keyNumberGlobal,
  94                         "2": self.keyNumberGlobal,
  95                         "3": self.keyNumberGlobal,
  96                         "4": self.keyNumberGlobal,
  97                         "5": self.keyNumberGlobal,
  98                         "6": self.keyNumberGlobal,
  99                         "7": self.keyNumberGlobal,
 100                         "8": self.keyNumberGlobal,
 101                         "9": self.keyNumberGlobal,
 102                         "0": self.keyNumberGlobal
 103                 }, -1)
 104
 105                 #self["actions"] = HelpableActionMap(self, "OkCancelActions",
 106                         #{
 107                                 #"ok": (self.ok, _("Close this Screen...")),
 108                         #})
 109
 110         def back(self):
 111                 self.currStep -= 1
 112                 if self.currStep < 1:
 113                         self.currStep = 1
 114                 self.updateValues()
 115
 116         def ok(self):
 117                 print "OK"
 118                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 119                         try: # don't die, if no run() is available
 120                                 self.configInstance.run()
 121                         except:
 122                                 print "Failed to run configInstance"
 123
 124                 if (len(self.wizard[self.currStep]["list"]) > 0):
 125                         nextStep = self.wizard[self.currStep]["list"][self["list"].l.getCurrentSelectionIndex()][1]
 126                         if nextStep == "end":
 127                                 self.currStep = self.numSteps
 128                         elif nextStep == "next":
 129                                 pass
 130                         else:
 131                                 self.currStep = int(nextStep) - 1
 132
 133                 if (self.currStep == self.numSteps): # wizard finished
 134                         config.misc.firstrun.value = 0;
 135                         config.misc.firstrun.save()
 136                         self.session.close()
 137                 else:
 138                         self.currStep += 1
 139                         self.updateValues()
 140
 141                 print "Now: " + str(self.currStep)
 142
 143         def keyNumberGlobal(self, number):
 144                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 145                         self.configInstance.keyNumberGlobal(number)
 146
 147         def left(self):
 148                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 149                         self.configInstance.keyLeft()
 150                 print "left"
 151
 152         def right(self):
 153                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 154                         self.configInstance.keyRight()
 155                 print "right"
 156
 157         def up(self):
 158                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 159                         self["config"].instance.moveSelection(self["config"].instance.moveUp)
 160                 elif (len(self.wizard[self.currStep]["list"]) > 0):
 161                         self["list"].instance.moveSelection(self["list"].instance.moveUp)
 162                 print "up"
 163
 164         def down(self):
 165                 if (self.wizard[self.currStep]["config"]["screen"] != None):
 166                         self["config"].instance.moveSelection(self["config"].instance.moveDown)
 167                 elif (len(self.wizard[self.currStep]["list"]) > 0):
 168                         self["list"].instance.moveSelection(self["list"].instance.moveDown)
 169                 print "down"
 170
 171         def updateValues(self):
 172                 print "Updating values in step " + str(self.currStep)
 173
 174                 self.condition = True
 175                 exec (self.wizard[self.currStep]["condition"])
 176                 if self.condition:
 177                         self["step"].setText(_("Step ") + str(self.currStep) + "/" + str(self.numSteps))
 178                         self["stepslider"].setValue(self.currStep)
 179
 180                         print _(self.wizard[self.currStep]["text"])
 181                         self["text"].setText(_(self.wizard[self.currStep]["text"]))
 182
 183                         if self.wizard[self.currStep]["code"] != "":
 184                                 print self.wizard[self.currStep]["code"]
 185                                 exec(self.wizard[self.currStep]["code"])
 186
 187                         self["list"].instance.setZPosition(1)
 188                         self.list = []
 189                         if (len(self.wizard[self.currStep]["list"]) > 0):
 190                                 self["list"].instance.setZPosition(2)
 191                                 for x in self.wizard[self.currStep]["list"]:
 192                                         self.list.append((_(x[0]), None))
 193                         self["list"].l.setList(self.list)
 194
 195                         self["config"].instance.setZPosition(1)
 196                         if (self.wizard[self.currStep]["config"]["screen"] != None):
 197                                 if self.wizard[self.currStep]["config"]["type"] == "standalone":
 198                                         print "Type is standalone"
 199                                         self.session.openWithCallback(self.ok, self.wizard[self.currStep]["config"]["screen"])
 200                                 else:
 201                                         self["config"].instance.setZPosition(2)
 202                                         print self.wizard[self.currStep]["config"]["screen"]
 203                                         if self.wizard[self.currStep]["config"]["args"] == None:
 204                                                 self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"])
 205                                         else:
 206                                                 self.configInstance = self.session.instantiateDialog(self.wizard[self.currStep]["config"]["screen"], eval(self.wizard[self.currStep]["config"]["args"]))
 207                                         self["config"].l.setList(self.configInstance["config"].list)
 208                                         self.configInstance["config"] = self["config"]
 209                         else:
 210                                 self["config"].l.setList([])
 211                 else: # condition false
 212                                 self.currStep += 1
 213                                 self.updateValues()
 214
 215 class WizardManager:
 216         def __init__(self):
 217                 self.wizards = []
 218
 219         def registerWizard(self, wizard):
 220                 self.wizards.append(wizard)
 221
 222         def getWizards(self):
 223                 if config.misc.firstrun.value:
 224                         return self.wizards
 225                 else:
 226                         return []
 227
 228 wizardManager = WizardManager()