code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Components/ConfigList.py

   1 from HTMLComponent import HTMLComponent
   2 from GUIComponent import GUIComponent
   3 from config import KEY_LEFT, KEY_RIGHT, KEY_HOME, KEY_END, KEY_0, KEY_DELETE, KEY_BACKSPACE, KEY_OK, KEY_TOGGLEOW, KEY_ASCII, KEY_TIMEOUT, KEY_NUMBERS, ConfigElement
   4 from Components.ActionMap import NumberActionMap
   5 from enigma import eListbox, eListboxPythonConfigContent, eRCInput, eTimer
   6 from Screens.MessageBox import MessageBox
   7
   8 class ConfigList(HTMLComponent, GUIComponent, object):
   9         def __init__(self, list, session = None):
  10                 GUIComponent.__init__(self)
  11                 self.l = eListboxPythonConfigContent()
  12                 self.l.setSeperation(100)
  13                 self.timer = eTimer()
  14                 self.list = list
  15                 self.onSelectionChanged = [ ]
  16                 self.current = None
  17                 self.session = session
  18
  19         def execBegin(self):
  20                 rcinput = eRCInput.getInstance()
  21                 rcinput.setKeyboardMode(rcinput.kmAscii)
  22                 self.timer.timeout.get().append(self.timeout)
  23
  24         def execEnd(self):
  25                 rcinput = eRCInput.getInstance()
  26                 rcinput.setKeyboardMode(rcinput.kmNone)
  27                 self.timer.timeout.get().remove(self.timeout)
  28
  29         def toggle(self):
  30                 selection = self.getCurrent()
  31                 selection[1].toggle()
  32                 self.invalidateCurrent()
  33
  34         def handleKey(self, key):
  35                 selection = self.getCurrent()
  36                 if selection and selection[1].enabled:
  37                         selection[1].handleKey(key)
  38                         self.invalidateCurrent()
  39                         if key in KEY_NUMBERS:
  40                                 self.timer.start(1000, 1)
  41
  42         def getCurrent(self):
  43                 return self.l.getCurrentSelection()
  44
  45         def getCurrentIndex(self):
  46                 return self.l.getCurrentSelectionIndex()
  47
  48         def setCurrentIndex(self, index):
  49                 if self.instance is not None:
  50                         self.instance.moveSelectionTo(index)
  51
  52         def invalidateCurrent(self):
  53                 self.l.invalidateEntry(self.l.getCurrentSelectionIndex())
  54
  55         def invalidate(self, entry):
  56                 # when the entry to invalidate does not exist, just ignore the request.
  57                 # this eases up conditional setup screens a lot.
  58                 if entry in self.__list:
  59                         self.l.invalidateEntry(self.__list.index(entry))
  60
  61         GUI_WIDGET = eListbox
  62
  63         def selectionChanged(self):
  64                 if self.current:
  65                         self.current[1].onDeselect(self.session)
  66                 self.current = self.getCurrent()
  67                 if self.current:
  68                         self.current[1].onSelect(self.session)
  69                 for x in self.onSelectionChanged:
  70                         x()
  71
  72         def postWidgetCreate(self, instance):
  73                 instance.selectionChanged.get().append(self.selectionChanged)
  74                 instance.setContent(self.l)
  75
  76         def preWidgetRemove(self, instance):
  77                 if self.current:
  78                         self.current[1].onDeselect(self.session)
  79                 instance.selectionChanged.get().remove(self.selectionChanged)
  80
  81         def setList(self, l):
  82                 self.timer.stop()
  83                 self.__list = l
  84                 self.l.setList(self.__list)
  85
  86                 if l is not None:
  87                         for x in l:
  88                                 assert isinstance(x[1], ConfigElement), "entry in ConfigList " + str(x[1]) + " must be a ConfigElement"
  89
  90         def getList(self):
  91                 return self.__list
  92
  93         list = property(getList, setList)
  94
  95         def timeout(self):
  96                 self.handleKey(KEY_TIMEOUT)
  97
  98         def isChanged(self):
  99                 is_changed = False
 100                 for x in self.list:
 101                         is_changed |= x[1].isChanged()
 102
 103                 return is_changed
 104
 105 class ConfigListScreen:
 106         def __init__(self, list, session = None, on_change = None):
 107                 self["config_actions"] = NumberActionMap(["SetupActions", "InputAsciiActions", "KeyboardInputActions"],
 108                 {
 109                         "gotAsciiCode": self.keyGotAscii,
 110                         "ok": self.keyOK,
 111                         "left": self.keyLeft,
 112                         "right": self.keyRight,
 113                         "home": self.keyHome,
 114                         "end": self.keyEnd,
 115                         "deleteForward": self.keyDelete,
 116                         "deleteBackward": self.keyBackspace,
 117                         "toggleOverwrite": self.keyToggleOW,
 118                         "1": self.keyNumberGlobal,
 119                         "2": self.keyNumberGlobal,
 120                         "3": self.keyNumberGlobal,
 121                         "4": self.keyNumberGlobal,
 122                         "5": self.keyNumberGlobal,
 123                         "6": self.keyNumberGlobal,
 124                         "7": self.keyNumberGlobal,
 125                         "8": self.keyNumberGlobal,
 126                         "9": self.keyNumberGlobal,
 127                         "0": self.keyNumberGlobal
 128                 }, -1) # to prevent left/right overriding the listbox
 129
 130                 self["config"] = ConfigList(list, session = session)
 131                 if on_change is not None:
 132                         self.__changed = on_change
 133                 else:
 134                         self.__changed = lambda: None
 135
 136         def keyOK(self):
 137                 self["config"].handleKey(KEY_OK)
 138
 139         def keyLeft(self):
 140                 self["config"].handleKey(KEY_LEFT)
 141                 self.__changed()
 142
 143         def keyRight(self):
 144                 self["config"].handleKey(KEY_RIGHT)
 145                 self.__changed()
 146
 147         def keyHome(self):
 148                 self["config"].handleKey(KEY_HOME)
 149                 self.__changed()
 150
 151         def keyEnd(self):
 152                 self["config"].handleKey(KEY_END)
 153                 self.__changed()
 154
 155         def keyDelete(self):
 156                 self["config"].handleKey(KEY_DELETE)
 157                 self.__changed()
 158
 159         def keyBackspace(self):
 160                 self["config"].handleKey(KEY_BACKSPACE)
 161                 self.__changed()
 162
 163         def keyToggleOW(self):
 164                 self["config"].handleKey(KEY_TOGGLEOW)
 165                 self.__changed()
 166
 167         def keyGotAscii(self):
 168                 self["config"].handleKey(KEY_ASCII)
 169                 self.__changed()
 170
 171         def keyNumberGlobal(self, number):
 172                 self["config"].handleKey(KEY_0 + number)
 173                 self.__changed()
 174
 175         # keySave and keyCancel are just provided in case you need them.
 176         # you have to call them by yourself.
 177         def keySave(self):
 178                 for x in self["config"].list:
 179                         x[1].save()
 180                 self.close()
 181
 182         def cancelConfirm(self, result):
 183                 if not result:
 184                         return
 185
 186                 for x in self["config"].list:
 187                         x[1].cancel()
 188                 self.close()
 189
 190         def keyCancel(self):
 191                 if self["config"].isChanged():
 192                         self.session.openWithCallback(self.cancelConfirm, MessageBox, _("Really close without saving settings?"))
 193                 else:
 194                         self.close()