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 from Components.Sources.StaticText import StaticText
   6
   7 class ChoiceBox(Screen):
   8         def __init__(self, session, title = "", list = [], keys = None, selection = 0, skin_name = []):
   9                 Screen.__init__(self, session)
  10
  11                 if isinstance(skin_name, str):
  12                         skin_name = [skin_name]
  13                 self.skinName = skin_name + ["ChoiceBox"]
  14
  15                 self["text"] = Label(title)
  16                 self.list = []
  17                 self.summarylist = []
  18                 if keys is None:
  19                         self.__keys = [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "red", "green", "yellow", "blue" ] + (len(list) - 10) * [""]
  20                 else:
  21                         self.__keys = keys + (len(list) - len(keys)) * [""]
  22
  23                 self.keymap = {}
  24                 pos = 0
  25                 for x in list:
  26                         strpos = str(self.__keys[pos])
  27                         self.list.append(ChoiceEntryComponent(key = strpos, text = x))
  28                         if self.__keys[pos] != "":
  29                                 self.keymap[self.__keys[pos]] = list[pos]
  30                         self.summarylist.append((self.__keys[pos],x[0]))
  31                         pos += 1
  32                 self["list"] = ChoiceList(list = self.list, selection = selection)
  33                 self["summary_list"] = StaticText()
  34                 self.updateSummary()
  35
  36                 self["actions"] = NumberActionMap(["WizardActions", "InputActions", "ColorActions", "DirectionActions"],
  37                 {
  38                         "ok": self.go,
  39                         "back": self.cancel,
  40                         "1": self.keyNumberGlobal,
  41                         "2": self.keyNumberGlobal,
  42                         "3": self.keyNumberGlobal,
  43                         "4": self.keyNumberGlobal,
  44                         "5": self.keyNumberGlobal,
  45                         "6": self.keyNumberGlobal,
  46                         "7": self.keyNumberGlobal,
  47                         "8": self.keyNumberGlobal,
  48                         "9": self.keyNumberGlobal,
  49                         "0": self.keyNumberGlobal,
  50                         "red": self.keyRed,
  51                         "green": self.keyGreen,
  52                         "yellow": self.keyYellow,
  53                         "blue": self.keyBlue,
  54                         "up": self.up,
  55                         "down": self.down
  56                 }, -1)
  57
  58         def keyLeft(self):
  59                 pass
  60
  61         def keyRight(self):
  62                 pass
  63
  64         def up(self):
  65                 if len(self["list"].list) > 0:
  66                         while 1:
  67                                 self["list"].instance.moveSelection(self["list"].instance.moveUp)
  68                                 self.updateSummary(self["list"].l.getCurrentSelectionIndex())
  69                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == 0:
  70                                         break
  71
  72         def down(self):
  73                 if len(self["list"].list) > 0:
  74                         while 1:
  75                                 self["list"].instance.moveSelection(self["list"].instance.moveDown)
  76                                 self.updateSummary(self["list"].l.getCurrentSelectionIndex())
  77                                 if self["list"].l.getCurrentSelection()[0][0] != "--" or self["list"].l.getCurrentSelectionIndex() == len(self["list"].list) - 1:
  78                                         break
  79
  80         # runs a number shortcut
  81         def keyNumberGlobal(self, number):
  82                 self.goKey(str(number))
  83
  84         # runs the current selected entry
  85         def go(self):
  86                 cursel = self["list"].l.getCurrentSelection()
  87                 if cursel:
  88                         self.goEntry(cursel[0])
  89                 else:
  90                         self.cancel()
  91
  92         # runs a specific entry
  93         def goEntry(self, entry):
  94                 if len(entry) > 2 and isinstance(entry[1], str) and entry[1] == "CALLFUNC":
  95                         # CALLFUNC wants to have the current selection as argument
  96                         arg = self["list"].l.getCurrentSelection()[0]
  97                         entry[2](arg)
  98                 else:
  99                         self.close(entry)
 100
 101         # lookups a key in the keymap, then runs it
 102         def goKey(self, key):
 103                 if self.keymap.has_key(key):
 104                         entry = self.keymap[key]
 105                         self.goEntry(entry)
 106
 107         # runs a color shortcut
 108         def keyRed(self):
 109                 self.goKey("red")
 110
 111         def keyGreen(self):
 112                 self.goKey("green")
 113
 114         def keyYellow(self):
 115                 self.goKey("yellow")
 116
 117         def keyBlue(self):
 118                 self.goKey("blue")
 119
 120         def updateSummary(self, curpos=0):
 121                 pos = 0
 122                 summarytext = ""
 123                 for entry in self.summarylist:
 124                         if pos > curpos-2 and pos < curpos+5:
 125                                 if pos == curpos:
 126                                         summarytext += ">"
 127                                 else:
 128                                         summarytext += entry[0]
 129                                 summarytext += ' ' + entry[1] + '\n'
 130                         pos += 1
 131                 self["summary_list"].setText(summarytext)
 132
 133         def cancel(self):
 134                 self.close(None)