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

   1 import time
   2 from enigma import getPrevAsciiCode
   3 from Tools.NumericalTextInput import NumericalTextInput
   4 from Tools.Directories import resolveFilename, SCOPE_CONFIG
   5 from Components.Harddisk import harddiskmanager
   6 import copy
   7 import os
   8
   9 # ConfigElement, the base class of all ConfigElements.
  10
  11 # it stores:
  12 #   value    the current value, usefully encoded.
  13 #            usually a property which retrieves _value,
  14 #            and maybe does some reformatting
  15 #   _value   the value as it's going to be saved in the configfile,
  16 #            though still in non-string form.
  17 #            this is the object which is actually worked on.
  18 #   default  the initial value. If _value is equal to default,
  19 #            it will not be stored in the config file
  20 #   saved_value is a text representation of _value, stored in the config file
  21 #
  22 # and has (at least) the following methods:
  23 #   save()   stores _value into saved_value,
  24 #            (or stores 'None' if it should not be stored)
  25 #   load()   loads _value from saved_value, or loads
  26 #            the default if saved_value is 'None' (default)
  27 #            or invalid.
  28 #
  29 class ConfigElement(object):
  30         def __init__(self):
  31
  32                 object.__init__(self)
  33                 self.saved_value = None
  34                 self.save_disabled = False
  35                 self.notifiers = []
  36                 self.enabled = True
  37
  38         # you need to override this to do input validation
  39         def setValue(self, value):
  40                 self._value = value
  41                 self.changed()
  42
  43         def getValue(self):
  44                 return self._value
  45
  46         value = property(getValue, setValue)
  47
  48         # you need to override this if self.value is not a string
  49         def fromstring(self, value):
  50                 return value
  51
  52         # you can overide this for fancy default handling
  53         def load(self):
  54                 if self.saved_value is None:
  55                         self.value = self.default
  56                 else:
  57                         self.value = self.fromstring(self.saved_value)
  58
  59         def tostring(self, value):
  60                 return str(value)
  61
  62         # you need to override this if str(self.value) doesn't work
  63         def save(self):
  64                 if self.save_disabled or self.value == self.default:
  65                         self.saved_value = None
  66                 else:
  67                         self.saved_value = self.tostring(self.value)
  68
  69         def cancel(self):
  70                 self.load()
  71
  72         def isChanged(self):
  73                 if self.saved_value is None and self.value == self.default:
  74                         return False
  75                 return self.tostring(self.value) != self.saved_value
  76
  77         def changed(self):
  78                 for x in self.notifiers:
  79                         x(self)
  80
  81         def addNotifier(self, notifier, initial_call = True):
  82                 assert callable(notifier), "notifiers must be callable"
  83                 self.notifiers.append(notifier)
  84
  85                 # CHECKME:
  86                 # do we want to call the notifier
  87                 #  - at all when adding it? (yes, though optional)
  88                 #  - when the default is active? (yes)
  89                 #  - when no value *yet* has been set,
  90                 #    because no config has ever been read (currently yes)
  91                 #    (though that's not so easy to detect.
  92                 #     the entry could just be new.)
  93                 if initial_call:
  94                         notifier(self)
  95
  96         def disableSave(self):
  97                 self.save_disabled = True
  98
  99         def __call__(self, selected):
 100                 return self.getMulti(selected)
 101
 102         def onSelect(self, session):
 103                 pass
 104
 105         def onDeselect(self, session):
 106                 pass
 107
 108 KEY_LEFT = 0
 109 KEY_RIGHT = 1
 110 KEY_OK = 2
 111 KEY_DELETE = 3
 112 KEY_BACKSPACE = 4
 113 KEY_HOME = 5
 114 KEY_END = 6
 115 KEY_TOGGLEOW = 7
 116 KEY_ASCII = 8
 117 KEY_TIMEOUT = 9
 118 KEY_NUMBERS = range(12, 12+10)
 119 KEY_0 = 12
 120 KEY_9 = 12+9
 121
 122 def getKeyNumber(key):
 123         assert key in KEY_NUMBERS
 124         return key - KEY_0
 125
 126 #
 127 # ConfigSelection is a "one of.."-type.
 128 # it has the "choices", usually a list, which contains
 129 # (id, desc)-tuples (or just only the ids, in case the id
 130 # will be used as description)
 131 #
 132 # all ids MUST be plain strings.
 133 #
 134 class ConfigSelection(ConfigElement):
 135         def __init__(self, choices, default = None):
 136                 ConfigElement.__init__(self)
 137                 self._value = None
 138                 self.setChoices(choices, default)
 139
 140         def setChoices(self, choices, default = None):
 141                 self.choices = []
 142                 self.description = {}
 143
 144                 if isinstance(choices, list):
 145                         for x in choices:
 146                                 if isinstance(x, tuple):
 147                                         self.choices.append(x[0])
 148                                         self.description[x[0]] = x[1]
 149                                 else:
 150                                         self.choices.append(x)
 151                                         self.description[x] = x
 152                 elif isinstance(choices, dict):
 153                         for (key, val) in choices.items():
 154                                 self.choices.append(key)
 155                                 self.description[key] = val
 156                 else:
 157                         assert False, "ConfigSelection choices must be dict or list!"
 158
 159                 #assert len(self.choices), "you can't have an empty configselection"
 160                 if len(self.choices) == 0:
 161                         self.choices = [""]
 162                         self.description[""] = ""
 163
 164                 if default is None:
 165                         default = self.choices[0]
 166
 167                 assert default in self.choices, "default must be in choice list, but " + repr(default) + " is not!"
 168                 for x in self.choices:
 169                         assert isinstance(x, str), "ConfigSelection choices must be strings"
 170
 171                 self.default = default
 172
 173                 if self.value == None or not self.value in self.choices:
 174                         self.value = default
 175
 176         def setValue(self, value):
 177                 if value in self.choices:
 178                         self._value = value
 179                 else:
 180                         self._value = self.default
 181
 182                 self.changed()
 183
 184         def tostring(self, val):
 185                 return val
 186
 187         def getValue(self):
 188                 return self._value
 189
 190         def setCurrentText(self, text):
 191                 i = self.choices.index(self.value)
 192                 del self.description[self.choices[i]]
 193                 self.choices[i] = text
 194                 self.description[text] = text
 195                 self._value = text
 196
 197         value = property(getValue, setValue)
 198
 199         def getIndex(self):
 200                 return self.choices.index(self.value)
 201
 202         index = property(getIndex)
 203
 204         # GUI
 205         def handleKey(self, key):
 206                 nchoices = len(self.choices)
 207                 i = self.choices.index(self.value)
 208                 if key == KEY_LEFT:
 209                         self.value = self.choices[(i + nchoices - 1) % nchoices]
 210                 elif key == KEY_RIGHT:
 211                         self.value = self.choices[(i + 1) % nchoices]
 212                 elif key == KEY_HOME:
 213                         self.value = self.choices[0]
 214                 elif key == KEY_END:
 215                         self.value = self.choices[nchoices - 1]
 216
 217         def selectNext(self):
 218                 nchoices = len(self.choices)
 219                 i = self.choices.index(self.value)
 220                 self.value = self.choices[(i + 1) % nchoices]
 221
 222         def getText(self):
 223                 descr = self.description[self.value]
 224                 if len(descr):
 225                         return _(descr)
 226                 return descr
 227
 228         def getMulti(self, selected):
 229                 descr = self.description[self.value]
 230                 if len(descr):
 231                         return ("text", _(descr))
 232                 return ("text", descr)
 233
 234         # HTML
 235         def getHTML(self, id):
 236                 res = ""
 237                 for v in self.choices:
 238                         if self.value == v:
 239                                 checked = 'checked="checked" '
 240                         else:
 241                                 checked = ''
 242                         res += '<input type="radio" name="' + id + '" ' + checked + 'value="' + v + '">' + self.description[v] + "</input></br>\n"
 243                 return res;
 244
 245         def unsafeAssign(self, value):
 246                 # setValue does check if value is in choices. This is safe enough.
 247                 self.value = value
 248
 249 # a binary decision.
 250 #
 251 # several customized versions exist for different
 252 # descriptions.
 253 #
 254 class ConfigBoolean(ConfigElement):
 255         def __init__(self, default = False, descriptions = {False: "false", True: "true"}):
 256                 ConfigElement.__init__(self)
 257                 self.descriptions = descriptions
 258                 self.value = self.default = default
 259         def handleKey(self, key):
 260                 if key in [KEY_LEFT, KEY_RIGHT]:
 261                         self.value = not self.value
 262                 elif key == KEY_HOME:
 263                         self.value = False
 264                 elif key == KEY_END:
 265                         self.value = True
 266
 267         def getText(self):
 268                 descr = self.descriptions[self.value]
 269                 if len(descr):
 270                         return _(descr)
 271                 return descr
 272
 273         def getMulti(self, selected):
 274                 descr = self.descriptions[self.value]
 275                 if len(descr):
 276                         return ("text", _(descr))
 277                 return ("text", descr)
 278
 279         def tostring(self, value):
 280                 if not value:
 281                         return "false"
 282                 else:
 283                         return "true"
 284
 285         def fromstring(self, val):
 286                 if val == "true":
 287                         return True
 288                 else:
 289                         return False
 290
 291         def getHTML(self, id):
 292                 if self.value:
 293                         checked = ' checked="checked"'
 294                 else:
 295                         checked = ''
 296                 return '<input type="checkbox" name="' + id + '" value="1" ' + checked + " />"
 297
 298         # this is FLAWED. and must be fixed.
 299         def unsafeAssign(self, value):
 300                 if value == "1":
 301                         self.value = True
 302                 else:
 303                         self.value = False
 304
 305 class ConfigYesNo(ConfigBoolean):
 306         def __init__(self, default = False):
 307                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("no"), True: _("yes")})
 308
 309 class ConfigOnOff(ConfigBoolean):
 310         def __init__(self, default = False):
 311                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("off"), True: _("on")})
 312
 313 class ConfigEnableDisable(ConfigBoolean):
 314         def __init__(self, default = False):
 315                 ConfigBoolean.__init__(self, default = default, descriptions = {False: _("disable"), True: _("enable")})
 316
 317 class ConfigDateTime(ConfigElement):
 318         def __init__(self, default, formatstring, increment = 86400):
 319                 ConfigElement.__init__(self)
 320                 self.increment = increment
 321                 self.formatstring = formatstring
 322                 self.value = self.default = int(default)
 323
 324         def handleKey(self, key):
 325                 if key == KEY_LEFT:
 326                         self.value = self.value - self.increment
 327                 elif key == KEY_RIGHT:
 328                         self.value = self.value + self.increment
 329                 elif key == KEY_HOME or key == KEY_END:
 330                         self.value = self.default
 331
 332         def getText(self):
 333                 return time.strftime(self.formatstring, time.localtime(self.value))
 334
 335         def getMulti(self, selected):
 336                 return ("text", time.strftime(self.formatstring, time.localtime(self.value)))
 337
 338         def fromstring(self, val):
 339                 return int(val)
 340
 341 # *THE* mighty config element class
 342 #
 343 # allows you to store/edit a sequence of values.
 344 # can be used for IP-addresses, dates, plain integers, ...
 345 # several helper exist to ease this up a bit.
 346 #
 347 class ConfigSequence(ConfigElement):
 348         def __init__(self, seperator, limits, censor_char = "", default = None):
 349                 ConfigElement.__init__(self)
 350                 assert isinstance(limits, list) and len(limits[0]) == 2, "limits must be [(min, max),...]-tuple-list"
 351                 assert censor_char == "" or len(censor_char) == 1, "censor char must be a single char (or \"\")"
 352                 #assert isinstance(default, list), "default must be a list"
 353                 #assert isinstance(default[0], int), "list must contain numbers"
 354                 #assert len(default) == len(limits), "length must match"
 355
 356                 self.marked_pos = 0
 357                 self.seperator = seperator
 358                 self.limits = limits
 359                 self.censor_char = censor_char
 360
 361                 self.default = default
 362                 self.value = copy.copy(default)
 363
 364                 self.endNotifier = []
 365
 366         def validate(self):
 367                 max_pos = 0
 368                 num = 0
 369                 for i in self._value:
 370                         max_pos += len(str(self.limits[num][1]))
 371
 372                         if self._value[num] < self.limits[num][0]:
 373                                 self._value[num] = self.limits[num][0]
 374
 375                         if self._value[num] > self.limits[num][1]:
 376                                 self._value[num] = self.limits[num][1]
 377
 378                         num += 1
 379
 380                 if self.marked_pos >= max_pos:
 381                         for x in self.endNotifier:
 382                                 x(self)
 383                         self.marked_pos = max_pos - 1
 384
 385                 if self.marked_pos < 0:
 386                         self.marked_pos = 0
 387
 388         def validatePos(self):
 389                 if self.marked_pos < 0:
 390                         self.marked_pos = 0
 391
 392                 total_len = sum([len(str(x[1])) for x in self.limits])
 393
 394                 if self.marked_pos >= total_len:
 395                         self.marked_pos = total_len - 1
 396
 397         def addEndNotifier(self, notifier):
 398                 self.endNotifier.append(notifier)
 399
 400         def handleKey(self, key):
 401                 if key == KEY_LEFT:
 402                         self.marked_pos -= 1
 403                         self.validatePos()
 404
 405                 if key == KEY_RIGHT:
 406                         self.marked_pos += 1
 407                         self.validatePos()
 408
 409                 if key == KEY_HOME:
 410                         self.marked_pos = 0
 411                         self.validatePos()
 412
 413                 if key == KEY_END:
 414                         max_pos = 0
 415                         num = 0
 416                         for i in self._value:
 417                                 max_pos += len(str(self.limits[num][1]))
 418                                 num += 1
 419                         self.marked_pos = max_pos - 1
 420                         self.validatePos()
 421
 422                 if key in KEY_NUMBERS or key == KEY_ASCII:
 423                         if key == KEY_ASCII:
 424                                 code = getPrevAsciiCode()
 425                                 if code < 48 or code > 57:
 426                                         return
 427                                 number = code - 48
 428                         else:
 429                                 number = getKeyNumber(key)
 430
 431                         block_len = []
 432                         for x in self.limits:
 433                                 block_len.append(len(str(x[1])))
 434
 435                         total_len = sum(block_len)
 436
 437                         pos = 0
 438                         blocknumber = 0
 439                         block_len_total = [0, ]
 440                         for x in block_len:
 441                                 pos += block_len[blocknumber]
 442                                 block_len_total.append(pos)
 443                                 if pos - 1 >= self.marked_pos:
 444                                         pass
 445                                 else:
 446                                         blocknumber += 1
 447
 448                         # length of numberblock
 449                         number_len = len(str(self.limits[blocknumber][1]))
 450
 451                         # position in the block
 452                         posinblock = self.marked_pos - block_len_total[blocknumber]
 453
 454                         oldvalue = self._value[blocknumber]
 455                         olddec = oldvalue % 10 ** (number_len - posinblock) - (oldvalue % 10 ** (number_len - posinblock - 1))
 456                         newvalue = oldvalue - olddec + (10 ** (number_len - posinblock - 1) * number)
 457
 458                         self._value[blocknumber] = newvalue
 459                         self.marked_pos += 1
 460
 461                         self.validate()
 462                         self.changed()
 463
 464         def genText(self):
 465                 value = ""
 466                 mPos = self.marked_pos
 467                 num = 0;
 468                 for i in self._value:
 469                         if len(value):  #fixme no heading separator possible
 470                                 value += self.seperator
 471                                 if mPos >= len(value) - 1:
 472                                         mPos += 1
 473
 474                         if self.censor_char == "":
 475                                 value += ("%0" + str(len(str(self.limits[num][1]))) + "d") % i
 476                         else:
 477                                 value += (self.censor_char * len(str(self.limits[num][1])))
 478                         num += 1
 479                 return (value, mPos)
 480
 481         def getText(self):
 482                 (value, mPos) = self.genText()
 483                 return value
 484
 485         def getMulti(self, selected):
 486                 (value, mPos) = self.genText()
 487                         # only mark cursor when we are selected
 488                         # (this code is heavily ink optimized!)
 489                 if self.enabled:
 490                         return ("mtext"[1-selected:], value, [mPos])
 491                 else:
 492                         return ("text", value)
 493
 494         def tostring(self, val):
 495                 return self.seperator.join([self.saveSingle(x) for x in val])
 496
 497         def saveSingle(self, v):
 498                 return str(v)
 499
 500         def fromstring(self, value):
 501                 return [int(x) for x in value.split(self.seperator)]
 502
 503 class ConfigIP(ConfigSequence):
 504         def __init__(self, default):
 505                 ConfigSequence.__init__(self, seperator = ".", limits = [(0,255),(0,255),(0,255),(0,255)], default = default)
 506
 507         def getHTML(self, id):
 508                 # we definitely don't want leading zeros
 509                 return '.'.join(["%d" % d for d in self.value])
 510
 511         def genText(self):
 512                 value = ""
 513                 mPos = self.marked_pos
 514                 num = 0;
 515                 for i in self._value:
 516                         if len(value):
 517                                 value += self.seperator
 518                                 if mPos >= len(value) - 1:
 519                                         mPos += 1
 520                         value += (" " * (len(str(self.limits[num][1]))-len(str(i))))
 521                         value += str(i)
 522                         num += 1
 523                 return (value, mPos)
 524
 525 class ConfigMAC(ConfigSequence):
 526         def __init__(self, default):
 527                 ConfigSequence.__init__(self, seperator = ":", limits = [(1,255),(1,255),(1,255),(1,255),(1,255),(1,255)], default = default)
 528
 529 class ConfigPosition(ConfigSequence):
 530         def __init__(self, default, args):
 531                 ConfigSequence.__init__(self, seperator = ",", limits = [(0,args[0]),(0,args[1]),(0,args[2]),(0,args[3])], default = default)
 532
 533 class ConfigClock(ConfigSequence):
 534         def __init__(self, default):
 535                 import time
 536                 t = time.localtime(default)
 537                 ConfigSequence.__init__(self, seperator = ":", limits = [(0,23),(0,59)], default = [t.tm_hour, t.tm_min])
 538
 539 class ConfigInteger(ConfigSequence):
 540         def __init__(self, default, limits = (0, 9999999999)):
 541                 ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
 542
 543         # you need to override this to do input validation
 544         def setValue(self, value):
 545                 self._value = [value]
 546                 self.changed()
 547
 548         def getValue(self):
 549                 return self._value[0]
 550
 551         value = property(getValue, setValue)
 552
 553         def fromstring(self, value):
 554                 return int(value)
 555
 556         def tostring(self, value):
 557                 return str(value)
 558
 559 class ConfigPIN(ConfigInteger):
 560         def __init__(self, default, len = 4, censor = ""):
 561                 assert isinstance(default, int), "ConfigPIN default must be an integer"
 562                 if default == -1:
 563                         default = "aaaa"
 564                 ConfigSequence.__init__(self, seperator = ":", limits = [(0, (10**len)-1)], censor_char = censor, default = default)
 565                 self.len = len
 566
 567         def getLength(self):
 568                 return self.len
 569
 570 class ConfigFloat(ConfigSequence):
 571         def __init__(self, default, limits):
 572                 ConfigSequence.__init__(self, seperator = ".", limits = limits, default = default)
 573
 574         def getFloat(self):
 575                 return float(self.value[1] / float(self.limits[1][1] + 1) + self.value[0])
 576
 577         float = property(getFloat)
 578
 579 # an editable text...
 580 class ConfigText(ConfigElement, NumericalTextInput):
 581         def __init__(self, default = "", fixed_size = True, visible_width = False):
 582                 ConfigElement.__init__(self)
 583                 NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
 584
 585                 self.marked_pos = 0
 586                 self.allmarked = (default != "")
 587                 self.fixed_size = fixed_size
 588                 self.visible_width = visible_width
 589                 self.offset = 0
 590                 self.overwrite = fixed_size
 591                 self.help_window = None
 592                 self.value = self.default = default
 593
 594         def validateMarker(self):
 595                 if self.fixed_size:
 596                         if self.marked_pos > len(self.text)-1:
 597                                 self.marked_pos = len(self.text)-1
 598                 else:
 599                         if self.marked_pos > len(self.text):
 600                                 self.marked_pos = len(self.text)
 601                 if self.marked_pos < 0:
 602                         self.marked_pos = 0
 603                 if self.visible_width:
 604                         if self.marked_pos < self.offset:
 605                                 self.offset = self.marked_pos
 606                         if self.marked_pos >= self.offset + self.visible_width:
 607                                 if self.marked_pos == len(self.text):
 608                                         self.offset = self.marked_pos - self.visible_width
 609                                 else:
 610                                         self.offset = self.marked_pos - self.visible_width + 1
 611                         if self.offset > 0 and self.offset + self.visible_width > len(self.text):
 612                                 self.offset = max(0, len(self.text) - self.visible_width)
 613
 614         def insertChar(self, ch, pos, owr):
 615                 if owr or self.overwrite:
 616                         self.text = self.text[0:pos] + ch + self.text[pos + 1:]
 617                 elif self.fixed_size:
 618                         self.text = self.text[0:pos] + ch + self.text[pos:-1]
 619                 else:
 620                         self.text = self.text[0:pos] + ch + self.text[pos:]
 621
 622         def deleteChar(self, pos):
 623                 if not self.fixed_size:
 624                         self.text = self.text[0:pos] + self.text[pos + 1:]
 625                 elif self.overwrite:
 626                         self.text = self.text[0:pos] + " " + self.text[pos + 1:]
 627                 else:
 628                         self.text = self.text[0:pos] + self.text[pos + 1:] + " "
 629
 630         def deleteAllChars(self):
 631                 if self.fixed_size:
 632                         self.text = " " * len(self.text)
 633                 else:
 634                         self.text = ""
 635                 self.marked_pos = 0
 636
 637         def handleKey(self, key):
 638                 # this will no change anything on the value itself
 639                 # so we can handle it here in gui element
 640                 if key == KEY_DELETE:
 641                         self.timeout()
 642                         if self.allmarked:
 643                                 self.deleteAllChars()
 644                                 self.allmarked = False
 645                         else:
 646                                 self.deleteChar(self.marked_pos)
 647                                 if self.fixed_size and self.overwrite:
 648                                         self.marked_pos += 1
 649                 elif key == KEY_BACKSPACE:
 650                         self.timeout()
 651                         if self.allmarked:
 652                                 self.deleteAllChars()
 653                                 self.allmarked = False
 654                         elif self.marked_pos > 0:
 655                                 self.deleteChar(self.marked_pos-1)
 656                                 if not self.fixed_size and self.offset > 0:
 657                                         self.offset -= 1
 658                                 self.marked_pos -= 1
 659                 elif key == KEY_LEFT:
 660                         self.timeout()
 661                         if self.allmarked:
 662                                 self.marked_pos = len(self.text)
 663                                 self.allmarked = False
 664                         else:
 665                                 self.marked_pos -= 1
 666                 elif key == KEY_RIGHT:
 667                         self.timeout()
 668                         if self.allmarked:
 669                                 self.marked_pos = 0
 670                                 self.allmarked = False
 671                         else:
 672                                 self.marked_pos += 1
 673                 elif key == KEY_HOME:
 674                         self.timeout()
 675                         self.allmarked = False
 676                         self.marked_pos = 0
 677                 elif key == KEY_END:
 678                         self.timeout()
 679                         self.allmarked = False
 680                         self.marked_pos = len(self.text)
 681                 elif key == KEY_TOGGLEOW:
 682                         self.timeout()
 683                         self.overwrite = not self.overwrite
 684                 elif key == KEY_ASCII:
 685                         self.timeout()
 686                         newChar = unichr(getPrevAsciiCode())
 687                         if self.allmarked:
 688                                 self.deleteAllChars()
 689                                 self.allmarked = False
 690                         self.insertChar(newChar, self.marked_pos, False)
 691                         self.marked_pos += 1
 692                 elif key in KEY_NUMBERS:
 693                         owr = self.lastKey == getKeyNumber(key)
 694                         newChar = self.getKey(getKeyNumber(key))
 695                         if self.allmarked:
 696                                 self.deleteAllChars()
 697                                 self.allmarked = False
 698                         self.insertChar(newChar, self.marked_pos, owr)
 699                 elif key == KEY_TIMEOUT:
 700                         self.timeout()
 701                         if self.help_window:
 702                                 self.help_window.update(self)
 703                         return
 704
 705                 if self.help_window:
 706                         self.help_window.update(self)
 707                 self.validateMarker()
 708                 self.changed()
 709
 710         def nextFunc(self):
 711                 self.marked_pos += 1
 712                 self.validateMarker()
 713                 self.changed()
 714
 715         def getValue(self):
 716                 return self.text.encode("utf-8")
 717
 718         def setValue(self, val):
 719                 try:
 720                         self.text = val.decode("utf-8")
 721                 except UnicodeDecodeError:
 722                         self.text = val
 723                         print "Broken UTF8!"
 724
 725         value = property(getValue, setValue)
 726         _value = property(getValue, setValue)
 727
 728         def getText(self):
 729                 return self.text.encode("utf-8")
 730
 731         def getMulti(self, selected):
 732                 if self.visible_width:
 733                         if self.allmarked:
 734                                 mark = range(0, min(self.visible_width, len(self.text)))
 735                         else:
 736                                 mark = [self.marked_pos-self.offset]
 737                         return ("mtext"[1-selected:], self.text[self.offset:self.offset+self.visible_width].encode("utf-8")+" ", mark)
 738                 else:
 739                         if self.allmarked:
 740                                 mark = range(0, len(self.text))
 741                         else:
 742                                 mark = [self.marked_pos]
 743                         return ("mtext"[1-selected:], self.text.encode("utf-8")+" ", mark)
 744
 745         def onSelect(self, session):
 746                 self.allmarked = (self.value != "")
 747                 if session is not None:
 748                         from Screens.NumericalTextInputHelpDialog import NumericalTextInputHelpDialog
 749                         self.help_window = session.instantiateDialog(NumericalTextInputHelpDialog, self)
 750                         self.help_window.show()
 751
 752         def onDeselect(self, session):
 753                 self.marked_pos = 0
 754                 self.offset = 0
 755                 if self.help_window:
 756                         session.deleteDialog(self.help_window)
 757                         self.help_window = None
 758
 759         def getHTML(self, id):
 760                 return '<input type="text" name="' + id + '" value="' + self.value + '" /><br>\n'
 761
 762         def unsafeAssign(self, value):
 763                 self.value = str(value)
 764
 765 class ConfigNumber(ConfigText):
 766         def __init__(self, default = 0):
 767                 ConfigText.__init__(self, str(default), fixed_size = False)
 768
 769         def getValue(self):
 770                 return int(self.text)
 771
 772         def setValue(self, val):
 773                 self.text = str(val)
 774
 775         value = property(getValue, setValue)
 776         _value = property(getValue, setValue)
 777
 778         def conform(self):
 779                 pos = len(self.text) - self.marked_pos
 780                 self.text = self.text.lstrip("0")
 781                 if self.text == "":
 782                         self.text = "0"
 783                 if pos > len(self.text):
 784                         self.marked_pos = 0
 785                 else:
 786                         self.marked_pos = len(self.text) - pos
 787
 788         def handleKey(self, key):
 789                 if key in KEY_NUMBERS or key == KEY_ASCII:
 790                         if key == KEY_ASCII:
 791                                 ascii = getPrevAsciiCode()
 792                                 if not (48 <= ascii <= 57):
 793                                         return
 794                         else:
 795                                 ascii = getKeyNumber(key) + 48
 796                         newChar = unichr(ascii)
 797                         if self.allmarked:
 798                                 self.deleteAllChars()
 799                                 self.allmarked = False
 800                         self.insertChar(newChar, self.marked_pos, False)
 801                         self.marked_pos += 1
 802                 else:
 803                         ConfigText.handleKey(self, key)
 804                 self.conform()
 805
 806         def onSelect(self, session):
 807                 self.allmarked = (self.value != "")
 808
 809         def onDeselect(self, session):
 810                 self.marked_pos = 0
 811                 self.offset = 0
 812
 813 # a slider.
 814 class ConfigSlider(ConfigElement):
 815         def __init__(self, default = 0, increment = 1, limits = (0, 100)):
 816                 ConfigElement.__init__(self)
 817                 self.value = self.default = default
 818                 self.min = limits[0]
 819                 self.max = limits[1]
 820                 self.increment = increment
 821
 822         def checkValues(self):
 823                 if self.value < self.min:
 824                         self.value = self.min
 825
 826                 if self.value > self.max:
 827                         self.value = self.max
 828
 829         def handleKey(self, key):
 830                 if key == KEY_LEFT:
 831                         self.value -= self.increment
 832                 elif key == KEY_RIGHT:
 833                         self.value += self.increment
 834                 elif key == KEY_HOME:
 835                         self.value = self.min
 836                 elif key == KEY_END:
 837                         self.value = self.max
 838                 else:
 839                         return
 840                 self.checkValues()
 841
 842         def getText(self):
 843                 return "%d / %d" % (self.value, self.max)
 844
 845         def getMulti(self, selected):
 846                 self.checkValues()
 847                 return ("slider", self.value, self.max)
 848
 849         def fromstring(self, value):
 850                 return int(value)
 851
 852 # a satlist. in fact, it's a ConfigSelection.
 853 class ConfigSatlist(ConfigSelection):
 854         def __init__(self, list, default = None):
 855                 if default is not None:
 856                         default = str(default)
 857                 ConfigSelection.__init__(self, choices = [(str(orbpos), desc) for (orbpos, desc, flags) in list], default = default)
 858
 859         def getOrbitalPosition(self):
 860                 if self.value == "":
 861                         return None
 862                 return int(self.value)
 863
 864         orbital_position = property(getOrbitalPosition)
 865
 866 class ConfigSet(ConfigElement):
 867         def __init__(self, choices, default = []):
 868                 ConfigElement.__init__(self)
 869                 self.choices = []
 870                 self.description = {}
 871                 if isinstance(choices, list):
 872                         choices.sort()
 873                         for x in choices:
 874                                 if isinstance(x, tuple):
 875                                         self.choices.append(x[0])
 876                                         self.description[x[0]] = str(x[1])
 877                                 else:
 878                                         self.choices.append(x)
 879                                         self.description[x] = str(x)
 880                 else:
 881                         assert False, "ConfigSet choices must be a list!"
 882                 if len(self.choices) == 0:
 883                         self.choices = [""]
 884                         self.description[""] = ""
 885                 if default is None:
 886                         default = []
 887                 self.pos = -1
 888                 default.sort()
 889                 self.default = default
 890                 self.value = default+[]
 891
 892         def toggleChoice(self, choice):
 893                 if choice in self.value:
 894                         self.value.remove(choice)
 895                 else:
 896                         self.value.append(choice)
 897                         self.value.sort()
 898
 899         def handleKey(self, key):
 900                 if key in KEY_NUMBERS + [KEY_DELETE, KEY_BACKSPACE]:
 901                         if self.pos != -1:
 902                                 self.toggleChoice(self.choices[self.pos])
 903                 elif key == KEY_LEFT:
 904                         self.pos -= 1
 905                         if self.pos < -1:
 906                             self.pos = len(self.choices)-1
 907                 elif key == KEY_RIGHT:
 908                         self.pos += 1
 909                         if self.pos >= len(self.choices):
 910                             self.pos = -1
 911                 elif key in [KEY_HOME, KEY_END]:
 912                         self.pos = -1
 913
 914         def genString(self, lst):
 915                 res = ""
 916                 for x in lst:
 917                         res += self.description[x]+" "
 918                 return res
 919
 920         def getText(self):
 921                 return self.genString(self.value)
 922
 923         def getMulti(self, selected):
 924                 if not selected or self.pos == -1:
 925                         return ("text", self.genString(self.value))
 926                 else:
 927                         tmp = self.value+[]
 928                         ch = self.choices[self.pos]
 929                         mem = ch in self.value
 930                         if not mem:
 931                                 tmp.append(ch)
 932                                 tmp.sort()
 933                         ind = tmp.index(ch)
 934                         val1 = self.genString(tmp[:ind])
 935                         val2 = " "+self.genString(tmp[ind+1:])
 936                         if mem:
 937                                 chstr = " "+self.description[ch]+" "
 938                         else:
 939                                 chstr = "("+self.description[ch]+")"
 940                         return ("mtext", val1+chstr+val2, range(len(val1),len(val1)+len(chstr)))
 941
 942         def onDeselect(self, session):
 943                 self.pos = -1
 944                 self.changed()
 945
 946         def tostring(self, value):
 947                 return str(value)
 948
 949         def fromstring(self, val):
 950                 return eval(val)
 951
 952 class ConfigLocations(ConfigElement):
 953         def __init__(self, default = [], visible_width = False):
 954                 ConfigElement.__init__(self)
 955                 self.visible_width = visible_width
 956                 self.pos = -1
 957                 self.default = default
 958                 self.locations = []
 959                 self.mountpoints = []
 960                 harddiskmanager.on_partition_list_change.append(self.mountpointsChanged)
 961
 962         def setValue(self, value):
 963                 loc = [x[0] for x in self.locations if x[3]]
 964                 add = [x for x in value if not x in loc]
 965                 diff = add + [x for x in loc if not x in value]
 966                 self.locations = [x for x in self.locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
 967                 self.locations.sort(key = lambda x: x[0])
 968                 self.changed()
 969
 970         def getValue(self):
 971                 self.checkChangedMountpoints()
 972                 for x in self.locations:
 973                         x[3] = x[2]
 974                 return [x[0] for x in self.locations if x[3]]
 975
 976         value = property(getValue, setValue)
 977
 978         def tostring(self, value):
 979                 return str(value)
 980
 981         def fromstring(self, val):
 982                 return eval(val)
 983
 984         def load(self):
 985                 if self.saved_value is None:
 986                         tmp = self.default
 987                 else:
 988                         tmp = self.fromstring(self.saved_value)
 989                 self.locations = [[x, None, False, False] for x in tmp]
 990                 self.refreshMountpoints()
 991                 for x in self.locations:
 992                         if os.path.exists(x[0]):
 993                                 x[1] = self.getMountpoint(x[0])
 994                                 x[2] = True
 995
 996         def save(self):
 997                 if self.save_disabled or self.locations == []:
 998                         self.saved_value = None
 999                 else:
1000                         self.saved_value = self.tostring([x[0] for x in self.locations])
1001
1002         def isChanged(self):
1003                 if self.saved_value is None and self.locations == []:
1004                         return False
1005                 return self.tostring([x[0] for x in self.locations]) != self.saved_value
1006
1007         def mountpointsChanged(self, action, dev):
1008                 print "Mounts changed: ", action, dev
1009                 mp = dev.mountpoint+"/"
1010                 if action == "add":
1011                         self.addedMount(mp)
1012                 elif action == "remove":
1013                         self.removedMount(mp)
1014                 self.refreshMountpoints()
1015
1016         def addedMount(self, mp):
1017                 for x in self.locations:
1018                         if x[1] == mp:
1019                                 x[2] = True
1020                         elif x[1] == None and os.path.exists(x[0]):
1021                                 x[1] = self.getMountpoint(x[0])
1022                                 x[2] = True
1023
1024         def removedMount(self, mp):
1025                 for x in self.locations:
1026                         if x[1] == mp:
1027                                 x[2] = False
1028
1029         def refreshMountpoints(self):
1030                 self.mountpoints = [p.mountpoint + "/" for p in harddiskmanager.getMountedPartitions() if p.mountpoint != "/"]
1031                 self.mountpoints.sort(key = lambda x: -len(x))
1032
1033         def checkChangedMountpoints(self):
1034                 oldmounts = self.mountpoints
1035                 self.refreshMountpoints()
1036                 if oldmounts == self.mountpoints:
1037                         return
1038                 for x in oldmounts:
1039                         if not x in self.mountpoints:
1040                                 self.removedMount(x)
1041                 for x in self.mountpoints:
1042                         if not x in oldmounts:
1043                                 self.addedMount(x)
1044
1045         def getMountpoint(self, file):
1046                 file = os.path.realpath(file)+"/"
1047                 for m in self.mountpoints:
1048                         if file.startswith(m):
1049                                 return m
1050                 return None
1051
1052         def handleKey(self, key):
1053                 if key == KEY_LEFT:
1054                         self.pos -= 1
1055                         if self.pos < -1:
1056                             self.pos = len(self.value)-1
1057                 elif key == KEY_RIGHT:
1058                         self.pos += 1
1059                         if self.pos >= len(self.value):
1060                             self.pos = -1
1061                 elif key in [KEY_HOME, KEY_END]:
1062                         self.pos = -1
1063
1064         def getText(self):
1065                 return " ".join(self.value)
1066
1067         def getMulti(self, selected):
1068                 if not selected:
1069                         valstr = " ".join(self.value)
1070                         if self.visible_width and len(valstr) > self.visible_width:
1071                                 return ("text", valstr[0:self.visible_width])
1072                         else:
1073                                 return ("text", valstr)
1074                 else:
1075                         i = 0
1076                         valstr = ""
1077                         ind1 = 0
1078                         ind2 = 0
1079                         for val in self.value:
1080                                 if i == self.pos:
1081                                         ind1 = len(valstr)
1082                                 valstr += str(val)+" "
1083                                 if i == self.pos:
1084                                         ind2 = len(valstr)
1085                                 i += 1
1086                         if self.visible_width and len(valstr) > self.visible_width:
1087                                 if ind1+1 < self.visible_width/2:
1088                                         off = 0
1089                                 else:
1090                                         off = min(ind1+1-self.visible_width/2, len(valstr)-self.visible_width)
1091                                 return ("mtext", valstr[off:off+self.visible_width], range(ind1-off,ind2-off))
1092                         else:
1093                                 return ("mtext", valstr, range(ind1,ind2))
1094
1095         def onDeselect(self, session):
1096                 self.pos = -1
1097
1098 # nothing.
1099 class ConfigNothing(ConfigSelection):
1100         def __init__(self):
1101                 ConfigSelection.__init__(self, choices = [""])
1102
1103 # until here, 'saved_value' always had to be a *string*.
1104 # now, in ConfigSubsection, and only there, saved_value
1105 # is a dict, essentially forming a tree.
1106 #
1107 # config.foo.bar=True
1108 # config.foobar=False
1109 #
1110 # turns into:
1111 # config.saved_value == {"foo": {"bar": "True"}, "foobar": "False"}
1112 #
1113
1114
1115 class ConfigSubsectionContent(object):
1116         pass
1117
1118 # we store a backup of the loaded configuration
1119 # data in self.stored_values, to be able to deploy
1120 # them when a new config element will be added,
1121 # so non-default values are instantly available
1122
1123 # A list, for example:
1124 # config.dipswitches = ConfigSubList()
1125 # config.dipswitches.append(ConfigYesNo())
1126 # config.dipswitches.append(ConfigYesNo())
1127 # config.dipswitches.append(ConfigYesNo())
1128 class ConfigSubList(list, object):
1129         def __init__(self):
1130                 object.__init__(self)
1131                 list.__init__(self)
1132                 self.stored_values = {}
1133
1134         def save(self):
1135                 for x in self:
1136                         x.save()
1137
1138         def load(self):
1139                 for x in self:
1140                         x.load()
1141
1142         def getSavedValue(self):
1143                 res = {}
1144                 for i in range(len(self)):
1145                         sv = self[i].saved_value
1146                         if sv is not None:
1147                                 res[str(i)] = sv
1148                 return res
1149
1150         def setSavedValue(self, values):
1151                 self.stored_values = dict(values)
1152                 for (key, val) in self.stored_values.items():
1153                         if int(key) < len(self):
1154                                 self[int(key)].saved_value = val
1155
1156         saved_value = property(getSavedValue, setSavedValue)
1157
1158         def append(self, item):
1159                 i = str(len(self))
1160                 list.append(self, item)
1161                 if i in self.stored_values:
1162                         item.saved_value = self.stored_values[i]
1163                         item.load()
1164
1165         def dict(self):
1166                 res = dict()
1167                 for index in range(len(self)):
1168                         res[str(index)] = self[index]
1169                 return res
1170
1171 # same as ConfigSubList, just as a dictionary.
1172 # care must be taken that the 'key' has a proper
1173 # str() method, because it will be used in the config
1174 # file.
1175 class ConfigSubDict(dict, object):
1176         def __init__(self):
1177                 object.__init__(self)
1178                 dict.__init__(self)
1179                 self.stored_values = {}
1180
1181         def save(self):
1182                 for x in self.values():
1183                         x.save()
1184
1185         def load(self):
1186                 for x in self.values():
1187                         x.load()
1188
1189         def getSavedValue(self):
1190                 res = {}
1191                 for (key, val) in self.items():
1192                         if val.saved_value is not None:
1193                                 res[str(key)] = val.saved_value
1194                 return res
1195
1196         def setSavedValue(self, values):
1197                 self.stored_values = dict(values)
1198                 for (key, val) in self.items():
1199                         if str(key) in self.stored_values:
1200                                 val = self.stored_values[str(key)]
1201
1202         saved_value = property(getSavedValue, setSavedValue)
1203
1204         def __setitem__(self, key, item):
1205                 dict.__setitem__(self, key, item)
1206                 if str(key) in self.stored_values:
1207                         item.saved_value = self.stored_values[str(key)]
1208                         item.load()
1209
1210         def dict(self):
1211                 return self
1212
1213 # Like the classes above, just with a more "native"
1214 # syntax.
1215 #
1216 # some evil stuff must be done to allow instant
1217 # loading of added elements. this is why this class
1218 # is so complex.
1219 #
1220 # we need the 'content' because we overwrite
1221 # __setattr__.
1222 # If you don't understand this, try adding
1223 # __setattr__ to a usual exisiting class and you will.
1224 class ConfigSubsection(object):
1225         def __init__(self):
1226                 object.__init__(self)
1227                 self.__dict__["content"] = ConfigSubsectionContent()
1228                 self.content.items = { }
1229                 self.content.stored_values = { }
1230
1231         def __setattr__(self, name, value):
1232                 if name == "saved_value":
1233                         return self.setSavedValue(value)
1234                 assert isinstance(value, ConfigSubsection) or isinstance(value, ConfigElement) or isinstance(value, ConfigSubList) or isinstance(value, ConfigSubDict), "ConfigSubsections can only store ConfigSubsections, ConfigSubLists, ConfigSubDicts or ConfigElements"
1235                 self.content.items[name] = value
1236                 if name in self.content.stored_values:
1237                         #print "ok, now we have a new item,", name, "and have the following value for it:", self.content.stored_values[name]
1238                         value.saved_value = self.content.stored_values[name]
1239                         value.load()
1240
1241         def __getattr__(self, name):
1242                 return self.content.items[name]
1243
1244         def getSavedValue(self):
1245                 res = self.content.stored_values
1246                 for (key, val) in self.content.items.items():
1247                         if val.saved_value is not None:
1248                                 res[key] = val.saved_value
1249                         elif key in res:
1250                                 del res[key]
1251
1252                 return res
1253
1254         def setSavedValue(self, values):
1255                 values = dict(values)
1256
1257                 self.content.stored_values = values
1258
1259                 for (key, val) in self.content.items.items():
1260                         if key in values:
1261                                 val.saved_value = values[key]
1262
1263         saved_value = property(getSavedValue, setSavedValue)
1264
1265         def save(self):
1266                 for x in self.content.items.values():
1267                         x.save()
1268
1269         def load(self):
1270                 for x in self.content.items.values():
1271                         x.load()
1272
1273         def dict(self):
1274                 return self.content.items
1275
1276 # the root config object, which also can "pickle" (=serialize)
1277 # down the whole config tree.
1278 #
1279 # we try to keep non-existing config entries, to apply them whenever
1280 # a new config entry is added to a subsection
1281 # also, non-existing config entries will be saved, so they won't be
1282 # lost when a config entry disappears.
1283 class Config(ConfigSubsection):
1284         def __init__(self):
1285                 ConfigSubsection.__init__(self)
1286
1287         def pickle_this(self, prefix, topickle, result):
1288                 for (key, val) in topickle.items():
1289                         name = prefix + "." + key
1290
1291                         if isinstance(val, dict):
1292                                 self.pickle_this(name, val, result)
1293                         elif isinstance(val, tuple):
1294                                 result.append(name + "=" + val[0]) # + " ; " + val[1])
1295                         else:
1296                                 result.append(name + "=" + val)
1297
1298         def pickle(self):
1299                 result = [ ]
1300                 self.pickle_this("config", self.saved_value, result)
1301                 return '\n'.join(result) + "\n"
1302
1303         def unpickle(self, lines):
1304                 tree = { }
1305                 for l in lines:
1306                         if not len(l) or l[0] == '#':
1307                                 continue
1308
1309                         n = l.find('=')
1310                         val = l[n+1:].strip()
1311
1312                         names = l[:n].split('.')
1313 #                       if val.find(' ') != -1:
1314 #                               val = val[:val.find(' ')]
1315
1316                         base = tree
1317
1318                         for n in names[:-1]:
1319                                 base = base.setdefault(n, {})
1320
1321                         base[names[-1]] = val
1322
1323                 # we inherit from ConfigSubsection, so ...
1324                 #object.__setattr__(self, "saved_value", tree["config"])
1325                 if "config" in tree:
1326                         self.setSavedValue(tree["config"])
1327
1328         def saveToFile(self, filename):
1329                 f = open(filename, "w")
1330                 f.write(self.pickle())
1331                 f.close()
1332
1333         def loadFromFile(self, filename):
1334                 f = open(filename, "r")
1335                 self.unpickle(f.readlines())
1336                 f.close()
1337
1338 config = Config()
1339 config.misc = ConfigSubsection()
1340
1341 class ConfigFile:
1342         CONFIG_FILE = resolveFilename(SCOPE_CONFIG, "settings")
1343
1344         def load(self):
1345                 try:
1346                         config.loadFromFile(self.CONFIG_FILE)
1347                 except IOError, e:
1348                         print "unable to load config (%s), assuming defaults..." % str(e)
1349
1350         def save(self):
1351 #               config.save()
1352                 config.saveToFile(self.CONFIG_FILE)
1353
1354         def __resolveValue(self, pickles, cmap):
1355                 if cmap.has_key(pickles[0]):
1356                         if len(pickles) > 1:
1357                                 return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
1358                         else:
1359                                 return str(cmap[pickles[0]].value)
1360                 return None
1361
1362         def getResolvedKey(self, key):
1363                 names = key.split('.')
1364                 if len(names) > 1:
1365                         if names[0] == "config":
1366                                 ret=self.__resolveValue(names[1:], config.content.items)
1367                                 if ret and len(ret):
1368                                         return ret
1369                 print "getResolvedKey", key, "failed !! (Typo??)"
1370                 return ""
1371
1372 def NoSave(element):
1373         element.disableSave()
1374         return element
1375
1376 configfile = ConfigFile()
1377
1378 configfile.load()
1379
1380 def getConfigListEntry(*args):
1381         assert len(args) > 1, "getConfigListEntry needs a minimum of two arguments (descr, configElement)"
1382         return args
1383
1384 def updateConfigElement(element, newelement):
1385         newelement.value = element.value
1386         return newelement
1387
1388 #def _(x):
1389 #       return x
1390 #
1391 #config.bla = ConfigSubsection()
1392 #config.bla.test = ConfigYesNo()
1393 #config.nim = ConfigSubList()
1394 #config.nim.append(ConfigSubsection())
1395 #config.nim[0].bla = ConfigYesNo()
1396 #config.nim.append(ConfigSubsection())
1397 #config.nim[1].bla = ConfigYesNo()
1398 #config.nim[1].blub = ConfigYesNo()
1399 #config.arg = ConfigSubDict()
1400 #config.arg["Hello"] = ConfigYesNo()
1401 #
1402 #config.arg["Hello"].handleKey(KEY_RIGHT)
1403 #config.arg["Hello"].handleKey(KEY_RIGHT)
1404 #
1405 ##config.saved_value
1406 #
1407 ##configfile.save()
1408 #config.save()
1409 #print config.pickle()