lib/python/Screens/ChoiceBox.py

   1 from Screens.Screen import Screen
   2 from Components.ActionMap import NumberActionMap
   3 from Components.Label import Label
   4 from Components.ChoiceList import ChoiceEntryComponent, ChoiceList
   5
   6 class ChoiceBox(Screen):
   7         def __init__(self, session, title = "", list = [], keys = None, selection = 0):
   8                 Screen.__init__(self, session)
   9
  10                 self["text"] = Label(title)
  11                 self.list = []
  12                 if keys is None:
  13                         self.__keys = [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "red", "green", "yellow", "blue" ] + (len(list) - 10) * [""]
  14                 else:
  15                         self.__keys = keys + (len(list) - len(keys)) * [""]
  16
  17                 self.keymap = {}
  18                 pos = 0
  19                 for x in list:
  20                         strpos = str(self.__keys[pos])
  21                         self.list.append(ChoiceEntryComponent(key = strpos, text = x))
  22                         if self.__keys[pos] != "":
  23                                 self.keymap[self.__keys[pos]] = list[pos]
  24                         pos += 1
  25                 self["list"] = ChoiceList(list = self.list, selection = selection)
  26
  27                 self["actions"] = NumberActionMap(["WizardActions", "InputActions", "ColorActions", "DirectionActions"],
  28                 {
  29                         "ok": self.go,
  30                         "back": self.cancel,
  31                         "1": self.keyNumberGlobal,
  32                         "2": self.keyNumberGlobal,
  33                         "3": self.keyNumberGlobal,
  34                         "4": self.keyNumberGlobal,
  35                         "5": self.keyNumberGlobal,
  36                         "6": self.keyNumberGlobal,
  37                         "7": self.keyNumberGlobal,
  38                         "8": self.keyNumberGlobal,
  39                         "9": self.keyNumberGlobal,
  40                         "0": self.keyNumberGlobal,
  41                         "red": self.keyRed,
  42                         "green": self.keyGreen,
  43                         "yellow": self.keyYellow,
  44                         "blue": self.keyBlue,
  45                         "up": self.up,
  46                         "down": self.down
  47                 }, -1)
  48
  49         def keyLeft(self):
  50                 pass
  51
  52         def keyRight(self):
  53                 pass
  54
  55         def up(self):
  56                 if len(self["list"].list) > 0:
  57                         while 1:
  58                                 self["list"].instance.moveSelection(self["list"].instance.moveUp)
  59                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == 0:
  60                                         break
  61
  62         def down(self):
  63                 if len(self["list"].list) > 0:
  64                         while 1:
  65                                 self["list"].instance.moveSelection(self["list"].instance.moveDown)
  66                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == len(self["list"].list) - 1:
  67                                         break
  68
  69         # runs a number shortcut
  70         def keyNumberGlobal(self, number):
  71                 self.goKey(str(number))
  72
  73         # runs the current selected entry
  74         def go(self):
  75                 cursel = self["list"].l.getCurrentSelection()
  76                 if cursel:
  77                         self.goEntry(cursel[0])
  78                 else:
  79                         self.cancel()
  80
  81         # runs a specific entry
  82         def goEntry(self, entry):
  83                 if len(entry) > 2 and isinstance(entry[1], str) and entry[1] == "CALLFUNC":
  84                         # CALLFUNC wants to have the current selection as argument
  85                         arg = self["list"].l.getCurrentSelection()[0]
  86                         entry[2](arg)
  87                 else:
  88                         self.close(entry)
  89
  90         # lookups a key in the keymap, then runs it
  91         def goKey(self, key):
  92                 if self.keymap.has_key(key):
  93                         entry = self.keymap[key]
  94                         self.goEntry(entry)
  95
  96         # runs a color shortcut
  97         def keyRed(self):
  98                 self.goKey("red")
  99
 100         def keyGreen(self):
 101                 self.goKey("green")
 102
 103         def keyYellow(self):
 104                 self.goKey("yellow")
 105
 106         def keyBlue(self):
 107                 self.goKey("blue")
 108
 109         def cancel(self):
 110                 self.close(None)