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.help_window = None
  18                 self.setHelpWindowSession(session)
  19
  20         def execBegin(self):
  21                 rcinput = eRCInput.getInstance()
  22                 rcinput.setKeyboardMode(rcinput.kmAscii)
  23                 self.timer.timeout.get().append(self.timeout)
  24
  25         def execEnd(self):
  26                 rcinput = eRCInput.getInstance()
  27                 rcinput.setKeyboardMode(rcinput.kmNone)
  28                 self.timer.timeout.get().remove(self.timeout)
  29
  30         def setHelpWindowSession(self, session):
  31                 assert self.help_window is None, "you can't move a help window to another session"
  32                 self.session = session
  33
  34         def toggle(self):
  35                 selection = self.getCurrent()
  36                 selection[1].toggle()
  37                 self.invalidateCurrent()
  38
  39         def handleKey(self, key):
  40                 selection = self.getCurrent()
  41                 if selection and selection[1].enabled:
  42                         selection[1].handleKey(key)
  43                         self.invalidateCurrent()
  44                         if self.help_window:
  45                                 self.help_window.update(selection[1])
  46                         if key in KEY_NUMBERS:
  47                                 self.timer.start(1000, 1)
  48
  49         def getCurrent(self):
  50                 return self.l.getCurrentSelection()
  51
  52         def getCurrentIndex(self):
  53                 return self.l.getCurrentSelectionIndex()
  54
  55         def setCurrentIndex(self, index):
  56                 if self.instance is not None:
  57                         self.instance.moveSelectionTo(index)
  58
  59         def invalidateCurrent(self):
  60                 self.l.invalidateEntry(self.l.getCurrentSelectionIndex())
  61
  62         def invalidate(self, entry):
  63                 # when the entry to invalidate does not exist, just ignore the request.
  64                 # this eases up conditional setup screens a lot.
  65                 if entry in self.__list:
  66                         self.l.invalidateEntry(self.__list.index(entry))
  67
  68         GUI_WIDGET = eListbox
  69
  70         def selectionChanged(self):
  71                 n = self.getCurrent()
  72
  73                 if self.help_window:
  74                         self.session.deleteDialog(self.help_window)
  75
  76                 nh = n and n[1].helpWindow()
  77                 if nh is not None and self.session is not None:
  78                         self.help_window = self.session.instantiateDialog(*nh)
  79                         self.help_window.show()
  80
  81                 self.current = n
  82                 for x in self.onSelectionChanged:
  83                         x()
  84
  85         def postWidgetCreate(self, instance):
  86                 instance.setContent(self.l)
  87                 instance.selectionChanged.get().append(self.selectionChanged)
  88
  89         def preWidgetRemove(self, instance):
  90                 instance.selectionChanged.get().remove(self.selectionChanged)
  91
  92         def setList(self, l):
  93                 self.timer.stop()
  94                 self.__list = l
  95                 self.l.setList(self.__list)
  96
  97                 if l is not None:
  98                         for x in l:
  99                                 assert isinstance(x[1], ConfigElement), "entry in ConfigList " + str(x[1]) + " must be a ConfigElement"
 100
 101         def getList(self):
 102                 return self.__list
 103
 104         list = property(getList, setList)
 105
 106         def timeout(self):
 107                 self.handleKey(KEY_TIMEOUT)
 108
 109         def isChanged(self):
 110                 is_changed = False
 111                 for x in self.list:
 112                         is_changed |= x[1].isChanged()
 113
 114                 return is_changed
 115
 116 class ConfigListScreen:
 117         def __init__(self, list, session = None, on_change = None):
 118                 self["config_actions"] = NumberActionMap(["SetupActions", "InputAsciiActions", "KeyboardInputActions"],
 119                 {
 120                         "gotAsciiCode": self.keyGotAscii,
 121                         "ok": self.keyOK,
 122                         "accept": self.keyOK,
 123                         "left": self.keyLeft,
 124                         "right": self.keyRight,
 125                         "moveLeft": self.keyLeft,
 126                         "moveRight": self.keyRight,
 127                         "moveHome": self.keyHome,
 128                         "moveEnd": self.keyEnd,
 129                         "deleteForward": self.keyDelete,
 130                         "deleteBackward": self.keyBackspace,
 131                         "toggleOverwrite": self.keyToggleOW,
 132                         "1": self.keyNumberGlobal,
 133                         "2": self.keyNumberGlobal,
 134                         "3": self.keyNumberGlobal,
 135                         "4": self.keyNumberGlobal,
 136                         "5": self.keyNumberGlobal,
 137                         "6": self.keyNumberGlobal,
 138                         "7": self.keyNumberGlobal,
 139                         "8": self.keyNumberGlobal,
 140                         "9": self.keyNumberGlobal,
 141                         "0": self.keyNumberGlobal
 142                 }, -1) # to prevent left/right overriding the listbox
 143
 144                 self["config"] = ConfigList(list, session = session)
 145                 if on_change is not None:
 146                         self.__changed = on_change
 147                 else:
 148                         self.__changed = lambda: None
 149
 150         def keyOK(self):
 151                 self["config"].handleKey(KEY_OK)
 152
 153         def keyLeft(self):
 154                 self["config"].handleKey(KEY_LEFT)
 155                 self.__changed()
 156
 157         def keyRight(self):
 158                 self["config"].handleKey(KEY_RIGHT)
 159                 self.__changed()
 160
 161         def keyHome(self):
 162                 self["config"].handleKey(KEY_HOME)
 163                 self.__changed()
 164
 165         def keyEnd(self):
 166                 self["config"].handleKey(KEY_END)
 167                 self.__changed()
 168
 169         def keyDelete(self):
 170                 self["config"].handleKey(KEY_DELETE)
 171                 self.__changed()
 172
 173         def keyBackspace(self):
 174                 self["config"].handleKey(KEY_BACKSPACE)
 175                 self.__changed()
 176
 177         def keyToggleOW(self):
 178                 self["config"].handleKey(KEY_TOGGLEOW)
 179                 self.__changed()
 180
 181         def keyGotAscii(self):
 182                 self["config"].handleKey(KEY_ASCII)
 183                 self.__changed()
 184
 185         def keyNumberGlobal(self, number):
 186                 self["config"].handleKey(KEY_0 + number)
 187                 self.__changed()
 188
 189         # keySave and keyCancel are just provided in case you need them.
 190         # you have to call them by yourself.
 191         def keySave(self):
 192                 for x in self["config"].list:
 193                         x[1].save()
 194                 self.close()
 195
 196         def cancelConfirm(self, result):
 197                 if not result:
 198                         return
 199
 200                 for x in self["config"].list:
 201                         x[1].cancel()
 202                 self.close()
 203
 204         def keyCancel(self):
 205                 if self["config"].isChanged():
 206                         self.session.openWithCallback(self.cancelConfirm, MessageBox, _("Really close without saving settings?"))
 207                 else:
 208                         self.close()