bug #219
[vuplus_dvbapp] / lib / python / Components / config.py
index 3f43803..789ec32 100755 (executable)
@@ -20,7 +20,7 @@ from time import localtime, strftime
 #   saved_value is a text representation of _value, stored in the config file
 #
 # and has (at least) the following methods:
-#   save()   stores _value into saved_value, 
+#   save()   stores _value into saved_value,
 #            (or stores 'None' if it should not be stored)
 #   load()   loads _value from saved_value, or loads
 #            the default if saved_value is 'None' (default)
@@ -63,7 +63,7 @@ class ConfigElement(object):
 
        def getValue(self):
                return self._value
-       
+
        value = property(getValue, setValue)
 
        # you need to override this if self.value is not a string
@@ -105,12 +105,12 @@ class ConfigElement(object):
                if self.__notifiers:
                        for x in self.notifiers:
                                x(self)
-                       
+
        def changedFinal(self):
                if self.__notifiers_final:
                        for x in self.notifiers_final:
                                x(self)
-                       
+
        def addNotifier(self, notifier, initial_call = True, immediate_feedback = True):
                assert callable(notifier), "notifiers must be callable"
                if immediate_feedback:
@@ -178,14 +178,14 @@ class choicesList(object): # XXX: we might want a better name for this
 
        def __list__(self):
                if self.type == choicesList.LIST_TYPE_LIST:
-                       ret = [isinstance(x, tuple) and x[0] or x for x in self.choices]
+                       ret = [not isinstance(x, tuple) and x or x[0] for x in self.choices]
                else:
                        ret = self.choices.keys()
                return ret or [""]
 
        def __iter__(self):
                if self.type == choicesList.LIST_TYPE_LIST:
-                       ret = [isinstance(x, tuple) and x[0] or x for x in self.choices]
+                       ret = [not isinstance(x, tuple) and x or x[0] for x in self.choices]
                else:
                        ret = self.choices
                return iter(ret or [""])
@@ -232,7 +232,7 @@ class choicesList(object): # XXX: we might want a better name for this
 class descriptionList(choicesList): # XXX: we might want a better name for this
        def __list__(self):
                if self.type == choicesList.LIST_TYPE_LIST:
-                       ret = [isinstance(x, tuple) and x[1] or x for x in self.choices]
+                       ret = [not isinstance(x, tuple) and x or x[1] for x in self.choices]
                else:
                        ret = self.choices.values()
                return ret or [""]
@@ -279,14 +279,15 @@ class ConfigSelection(ConfigElement):
                if default is None:
                        default = self.choices.default()
 
+               self._descr = None
                self.default = self._value = self.last_value = default
-               self.changed()
 
        def setChoices(self, choices, default = None):
                self.choices = choicesList(choices)
 
                if default is None:
                        default = self.choices.default()
+               self.default = default
 
                if self.value not in self.choices:
                        self.value = default
@@ -296,6 +297,7 @@ class ConfigSelection(ConfigElement):
                        self._value = value
                else:
                        self._value = self.default
+               self._descr = None
                self.changed()
 
        def tostring(self, val):
@@ -307,14 +309,14 @@ class ConfigSelection(ConfigElement):
        def setCurrentText(self, text):
                i = self.choices.index(self.value)
                self.choices[i] = text
-               self.description[text] = text
+               self._descr = self.description[text] = text
                self._value = text
 
        value = property(getValue, setValue)
-       
+
        def getIndex(self):
                return self.choices.index(self.value)
-       
+
        index = property(getIndex)
 
        # GUI
@@ -336,13 +338,18 @@ class ConfigSelection(ConfigElement):
                self.value = self.choices[(i + 1) % nchoices]
 
        def getText(self):
-               descr = self.description[self.value]
+               if self._descr is not None:
+                       return self._descr
+               descr = self._descr = self.description[self.value]
                if descr:
                        return _(descr)
                return descr
 
        def getMulti(self, selected):
-               descr = self.description[self.value]
+               if self._descr is not None:
+                       descr = self._descr
+               else:
+                       descr = self._descr = self.description[self.value]
                if descr:
                        return ("text", _(descr))
                return ("text", descr)
@@ -378,7 +385,7 @@ class ConfigBoolean(ConfigElement):
                self.value = self.last_value = self.default = default
 
        def handleKey(self, key):
-               if key in [KEY_LEFT, KEY_RIGHT]:
+               if key in (KEY_LEFT, KEY_RIGHT):
                        self.value = not self.value
                elif key == KEY_HOME:
                        self.value = False
@@ -533,15 +540,15 @@ class ConfigSequence(ConfigElement):
                        self.marked_pos -= 1
                        self.validatePos()
 
-               if key == KEY_RIGHT:
+               elif key == KEY_RIGHT:
                        self.marked_pos += 1
                        self.validatePos()
 
-               if key == KEY_HOME:
+               elif key == KEY_HOME:
                        self.marked_pos = 0
                        self.validatePos()
 
-               if key == KEY_END:
+               elif key == KEY_END:
                        max_pos = 0
                        num = 0
                        for i in self._value:
@@ -550,7 +557,7 @@ class ConfigSequence(ConfigElement):
                        self.marked_pos = max_pos - 1
                        self.validatePos()
 
-               if key in KEY_NUMBERS or key == KEY_ASCII:
+               elif key in KEY_NUMBERS or key == KEY_ASCII:
                        if key == KEY_ASCII:
                                code = getPrevAsciiCode()
                                if code < 48 or code > 57:
@@ -559,10 +566,7 @@ class ConfigSequence(ConfigElement):
                        else:
                                number = getKeyNumber(key)
 
-                       block_len = []
-                       for x in self.limits:
-                               block_len.append(len(str(x[1])))
-
+                       block_len = [len(str(x[1])) for x in self.limits]
                        total_len = sum(block_len)
 
                        pos = 0
@@ -639,46 +643,43 @@ ip_limits = [(0,255),(0,255),(0,255),(0,255)]
 class ConfigIP(ConfigSequence):
        def __init__(self, default, auto_jump = False):
                ConfigSequence.__init__(self, seperator = ".", limits = ip_limits, default = default)
-               self.block_len = []
-               for x in self.limits:
-                       self.block_len.append(len(str(x[1])))
+               self.block_len = [len(str(x[1])) for x in self.limits]
                self.marked_block = 0
                self.overwrite = True
                self.auto_jump = auto_jump
 
        def handleKey(self, key):
-               
                if key == KEY_LEFT:
                        if self.marked_block > 0:
                                self.marked_block -= 1
                        self.overwrite = True
 
-               if key == KEY_RIGHT:
+               elif key == KEY_RIGHT:
                        if self.marked_block < len(self.limits)-1:
                                self.marked_block += 1
                        self.overwrite = True
 
-               if key == KEY_HOME:
+               elif key == KEY_HOME:
                        self.marked_block = 0
                        self.overwrite = True
 
-               if key == KEY_END:
+               elif key == KEY_END:
                        self.marked_block = len(self.limits)-1
                        self.overwrite = True
 
-               if key in KEY_NUMBERS or key == KEY_ASCII:
+               elif key in KEY_NUMBERS or key == KEY_ASCII:
                        if key == KEY_ASCII:
                                code = getPrevAsciiCode()
                                if code < 48 or code > 57:
                                        return
                                number = code - 48
-                       else:   
+                       else:
                                number = getKeyNumber(key)
                        oldvalue = self._value[self.marked_block]
-                       
+
                        if self.overwrite:
                                self._value[self.marked_block] = number
-                               self.overwrite = False          
+                               self.overwrite = False
                        else:
                                oldvalue *= 10
                                newvalue = oldvalue + number
@@ -699,7 +700,7 @@ class ConfigIP(ConfigSequence):
                value = ""
                block_strlen = []
                for i in self._value:
-                       block_strlen.append(len(str(i)))        
+                       block_strlen.append(len(str(i)))
                        if value:
                                value += self.seperator
                        value += str(i)
@@ -707,7 +708,7 @@ class ConfigIP(ConfigSequence):
                rightPos = sum(block_strlen[:(self.marked_block+1)])+self.marked_block
                mBlock = range(leftPos, rightPos)
                return (value, mBlock)
-       
+
        def getMulti(self, selected):
                (value, mBlock) = self.genText()
                if self.enabled:
@@ -768,7 +769,7 @@ integer_limits = (0, 9999999999)
 class ConfigInteger(ConfigSequence):
        def __init__(self, default, limits = integer_limits):
                ConfigSequence.__init__(self, seperator = ":", limits = [limits], default = default)
-       
+
        # you need to override this to do input validation
        def setValue(self, value):
                self._value = [value]
@@ -810,7 +811,7 @@ class ConfigText(ConfigElement, NumericalTextInput):
        def __init__(self, default = "", fixed_size = True, visible_width = False):
                ConfigElement.__init__(self)
                NumericalTextInput.__init__(self, nextFunc = self.nextFunc, handleTimeout = False)
-               
+
                self.marked_pos = 0
                self.allmarked = (default != "")
                self.fixed_size = fixed_size
@@ -821,24 +822,25 @@ class ConfigText(ConfigElement, NumericalTextInput):
                self.value = self.last_value = self.default = default
 
        def validateMarker(self):
+               textlen = len(self.text)
                if self.fixed_size:
-                       if self.marked_pos > len(self.text)-1:
-                               self.marked_pos = len(self.text)-1
+                       if self.marked_pos > textlen-1:
+                               self.marked_pos = textlen-1
                else:
-                       if self.marked_pos > len(self.text):
-                               self.marked_pos = len(self.text)
+                       if self.marked_pos > textlen:
+                               self.marked_pos = textlen
                if self.marked_pos < 0:
                        self.marked_pos = 0
                if self.visible_width:
                        if self.marked_pos < self.offset:
                                self.offset = self.marked_pos
                        if self.marked_pos >= self.offset + self.visible_width:
-                               if self.marked_pos == len(self.text):
+                               if self.marked_pos == textlen:
                                        self.offset = self.marked_pos - self.visible_width
                                else:
                                        self.offset = self.marked_pos - self.visible_width + 1
-                       if self.offset > 0 and self.offset + self.visible_width > len(self.text):
-                               self.offset = max(0, len(self.text) - self.visible_width)
+                       if self.offset > 0 and self.offset + self.visible_width > textlen:
+                               self.offset = max(0, len - self.visible_width)
 
        def insertChar(self, ch, pos, owr):
                if owr or self.overwrite:
@@ -911,13 +913,14 @@ class ConfigText(ConfigElement, NumericalTextInput):
                        self.timeout()
                        self.overwrite = not self.overwrite
                elif key == KEY_ASCII:
-                       self.timeout()
-                       newChar = unichr(getPrevAsciiCode())
-                       if self.allmarked:
-                               self.deleteAllChars()
-                               self.allmarked = False
-                       self.insertChar(newChar, self.marked_pos, False)
-                       self.marked_pos += 1
+                       self.timeout()
+                       newChar = unichr(getPrevAsciiCode())
+                       if not self.useableChars or newChar in self.useableChars:
+                               if self.allmarked:
+                                       self.deleteAllChars()
+                                       self.allmarked = False
+                               self.insertChar(newChar, self.marked_pos, False)
+                               self.marked_pos += 1
                elif key in KEY_NUMBERS:
                        owr = self.lastKey == getKeyNumber(key)
                        newChar = self.getKey(getKeyNumber(key))
@@ -1014,19 +1017,62 @@ class ConfigPassword(ConfigText):
                ConfigText.onDeselect(self, session)
                self.hidden = True
 
+# lets the user select between [min, min+stepwidth, min+(stepwidth*2)..., maxval] with maxval <= max depending
+# on the stepwidth
+# min, max, stepwidth, default are int values
+# wraparound: pressing RIGHT key at max value brings you to min value and vice versa if set to True
+class ConfigSelectionNumber(ConfigSelection):
+       def __init__(self, min, max, stepwidth, default = None, wraparound = False):
+               self.wraparound = wraparound
+               if default is None:
+                       default = min
+               default = str(default)
+               choices = []
+               step = min
+               while step <= max:
+                       choices.append(str(step))
+                       step += stepwidth
+               
+               ConfigSelection.__init__(self, choices, default)
+               
+       def getValue(self):
+               return int(self.text)
+
+       def setValue(self, val):
+               self.text = str(val)
+               
+       def handleKey(self, key):
+               if not self.wraparound:
+                       if key == KEY_RIGHT:
+                               if len(self.choices) == (self.choices.index(self.value) + 1):
+                                       return
+                       if key == KEY_LEFT:
+                               if self.choices.index(self.value) == 0:
+                                       return
+               ConfigSelection.handleKey(self, key)
+                               
+                               
+
 class ConfigNumber(ConfigText):
        def __init__(self, default = 0):
                ConfigText.__init__(self, str(default), fixed_size = False)
 
        def getValue(self):
                return int(self.text)
-               
+
        def setValue(self, val):
                self.text = str(val)
 
        value = property(getValue, setValue)
        _value = property(getValue, setValue)
 
+       def isChanged(self):
+               sv = self.saved_value
+               strv = self.tostring(self.value)
+               if sv is None and strv == self.default:
+                       return False
+               return strv != sv
+
        def conform(self):
                pos = len(self.text) - self.marked_pos
                self.text = self.text.lstrip("0")
@@ -1073,17 +1119,21 @@ class ConfigSearchText(ConfigText):
 class ConfigDirectory(ConfigText):
        def __init__(self, default="", visible_width=60):
                ConfigText.__init__(self, default, fixed_size = True, visible_width = visible_width)
+
        def handleKey(self, key):
                pass
+
        def getValue(self):
                if self.text == "":
                        return None
                else:
                        return ConfigText.getValue(self)
+
        def setValue(self, val):
                if val == None:
                        val = ""
                ConfigText.setValue(self, val)
+
        def getMulti(self, selected):
                if self.text == "":
                        return ("mtext"[1-selected:], _("List of Storage Devices"), range(0))
@@ -1140,7 +1190,7 @@ class ConfigSatlist(ConfigSelection):
                if self.value == "":
                        return None
                return int(self.value)
-       
+
        orbital_position = property(getOrbitalPosition)
 
 class ConfigSet(ConfigElement):
@@ -1159,11 +1209,12 @@ class ConfigSet(ConfigElement):
                self.value = default[:]
 
        def toggleChoice(self, choice):
-               if choice in self.value:
-                       self.value.remove(choice)
+               value = self.value
+               if choice in value:
+                       value.remove(choice)
                else:
-                       self.value.append(choice)
-                       self.value.sort()
+                       value.append(choice)
+                       value.sort()
                self.changed()
 
        def handleKey(self, key):
@@ -1171,14 +1222,16 @@ class ConfigSet(ConfigElement):
                        if self.pos != -1:
                                self.toggleChoice(self.choices[self.pos])
                elif key == KEY_LEFT:
-                       self.pos -= 1
-                       if self.pos < -1:
-                           self.pos = len(self.choices)-1
+                       if self.pos < 0:
+                               self.pos = len(self.choices)-1
+                       else:
+                               self.pos -= 1
                elif key == KEY_RIGHT:
-                       self.pos += 1
-                       if self.pos >= len(self.choices):
-                           self.pos = -1
-               elif key in [KEY_HOME, KEY_END]:
+                       if self.pos >= len(self.choices)-1:
+                               self.pos = -1
+                       else:
+                               self.pos += 1
+               elif key in (KEY_HOME, KEY_END):
                        self.pos = -1
 
        def genString(self, lst):
@@ -1207,14 +1260,15 @@ class ConfigSet(ConfigElement):
                                chstr = " "+self.description[ch]+" "
                        else:
                                chstr = "("+self.description[ch]+")"
-                       return ("mtext", val1+chstr+val2, range(len(val1),len(val1)+len(chstr)))
+                       len_val1 = len(val1)
+                       return ("mtext", val1+chstr+val2, range(len_val1, len_val1 + len(chstr)))
 
        def onDeselect(self, session):
                self.pos = -1
                if not self.last_value == self.value:
                        self.changedFinal()
                        self.last_value = self.value[:]
-               
+
        def tostring(self, value):
                return str(value)
 
@@ -1232,22 +1286,25 @@ class ConfigLocations(ConfigElement):
                self.locations = []
                self.mountpoints = []
                harddiskmanager.on_partition_list_change.append(self.mountpointsChanged)
-               self.value = default+[]
+               self.value = default[:]
 
        def setValue(self, value):
-               loc = [x[0] for x in self.locations if x[3]]
+               locations = self.locations
+               loc = [x[0] for x in locations if x[3]]
                add = [x for x in value if not x in loc]
                diff = add + [x for x in loc if not x in value]
-               self.locations = [x for x in self.locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
-               self.locations.sort(key = lambda x: x[0])
+               locations = [x for x in locations if not x[0] in diff] + [[x, self.getMountpoint(x), True, True] for x in add]
+               locations.sort(key = lambda x: x[0])
+               self.locations = locations
                self.changed()
 
        def getValue(self):
                self.checkChangedMountpoints()
-               for x in self.locations:
+               locations = self.locations
+               for x in locations:
                        x[3] = x[2]
-               return [x[0] for x in self.locations if x[3]]
-       
+               return [x[0] for x in locations if x[3]]
+
        value = property(getValue, setValue)
 
        def tostring(self, value):
@@ -1262,24 +1319,27 @@ class ConfigLocations(ConfigElement):
                        tmp = self.default
                else:
                        tmp = self.fromstring(sv)
-               self.locations = [[x, None, False, False] for x in tmp]
+               locations = [[x, None, False, False] for x in tmp]
                self.refreshMountpoints()
-               for x in self.locations:
+               for x in locations:
                        if os_path.exists(x[0]):
                                x[1] = self.getMountpoint(x[0])
                                x[2] = True
+               self.locations = locations
 
        def save(self):
-               if self.save_disabled or self.locations == []:
+               locations = self.locations
+               if self.save_disabled or not locations:
                        self.saved_value = None
                else:
-                       self.saved_value = self.tostring([x[0] for x in self.locations])
+                       self.saved_value = self.tostring([x[0] for x in locations])
 
        def isChanged(self):
                sv = self.saved_value
-               if val is None and self.locations == []:
+               locations = self.locations
+               if val is None and not locations:
                        return False
-               return self.tostring([x[0] for x in self.locations]) != sv
+               return self.tostring([x[0] for x in locations]) != sv
 
        def mountpointsChanged(self, action, dev):
                print "Mounts changed: ", action, dev
@@ -1302,7 +1362,7 @@ class ConfigLocations(ConfigElement):
                for x in self.locations:
                        if x[1] == mp:
                                x[2] = False
-               
+
        def refreshMountpoints(self):
                self.mountpoints = [p.mountpoint + "/" for p in harddiskmanager.getMountedPartitions() if p.mountpoint != "/"]
                self.mountpoints.sort(key = lambda x: -len(x))
@@ -1310,12 +1370,13 @@ class ConfigLocations(ConfigElement):
        def checkChangedMountpoints(self):
                oldmounts = self.mountpoints
                self.refreshMountpoints()
-               if oldmounts == self.mountpoints:
+               newmounts = self.mountpoints
+               if oldmounts == newmounts:
                        return
                for x in oldmounts:
-                       if not x in self.mountpoints:
+                       if not x in newmounts:
                                self.removedMount(x)
-               for x in self.mountpoints:
+               for x in newmounts:
                        if not x in oldmounts:
                                self.addedMount(x)
 
@@ -1330,12 +1391,12 @@ class ConfigLocations(ConfigElement):
                if key == KEY_LEFT:
                        self.pos -= 1
                        if self.pos < -1:
-                           self.pos = len(self.value)-1
+                               self.pos = len(self.value)-1
                elif key == KEY_RIGHT:
                        self.pos += 1
                        if self.pos >= len(self.value):
-                           self.pos = -1
-               elif key in [KEY_HOME, KEY_END]:
+                               self.pos = -1
+               elif key in (KEY_HOME, KEY_END):
                        self.pos = -1
 
        def getText(self):
@@ -1371,11 +1432,11 @@ class ConfigLocations(ConfigElement):
 
        def onDeselect(self, session):
                self.pos = -1
-               
+
 # nothing.
 class ConfigNothing(ConfigSelection):
        def __init__(self):
-               ConfigSelection.__init__(self, choices = [""])
+               ConfigSelection.__init__(self, choices = [("","")])
 
 # until here, 'saved_value' always had to be a *string*.
 # now, in ConfigSubsection, and only there, saved_value
@@ -1409,15 +1470,15 @@ class ConfigSubList(list, object):
        def save(self):
                for x in self:
                        x.save()
-       
+
        def load(self):
                for x in self:
                        x.load()
 
        def getSavedValue(self):
                res = { }
-               for i in range(len(self)):
-                       sv = self[i].saved_value
+               for i, val in enumerate(self):
+                       sv = val.saved_value
                        if sv is not None:
                                res[str(i)] = sv
                return res
@@ -1438,7 +1499,7 @@ class ConfigSubList(list, object):
                        item.load()
 
        def dict(self):
-               return dict([(str(index), value) for index, value in self.enumerate()])
+               return dict([(str(index), value) for index, value in enumerate(self)])
 
 # same as ConfigSubList, just as a dictionary.
 # care must be taken that the 'key' has a proper
@@ -1452,7 +1513,7 @@ class ConfigSubDict(dict, object):
        def save(self):
                for x in self.values():
                        x.save()
-       
+
        def load(self):
                for x in self.values():
                        x.load()
@@ -1469,7 +1530,7 @@ class ConfigSubDict(dict, object):
                self.stored_values = dict(values)
                for (key, val) in self.items():
                        if str(key) in self.stored_values:
-                               val = self.stored_values[str(key)]
+                               val.saved_value = self.stored_values[str(key)]
 
        saved_value = property(getSavedValue, setSavedValue)
 
@@ -1489,7 +1550,7 @@ class ConfigSubDict(dict, object):
 # loading of added elements. this is why this class
 # is so complex.
 #
-# we need the 'content' because we overwrite 
+# we need the 'content' because we overwrite
 # __setattr__.
 # If you don't understand this, try adding
 # __setattr__ to a usual exisiting class and you will.
@@ -1498,7 +1559,7 @@ class ConfigSubsection(object):
                self.__dict__["content"] = ConfigSubsectionContent()
                self.content.items = { }
                self.content.stored_values = { }
-       
+
        def __setattr__(self, name, value):
                if name == "saved_value":
                        return self.setSavedValue(value)
@@ -1558,7 +1619,7 @@ class Config(ConfigSubsection):
 
        def pickle_this(self, prefix, topickle, result):
                for (key, val) in topickle.items():
-                       name = ''.join((prefix, '.', key))
+                       name = '.'.join((prefix, key))
                        if isinstance(val, dict):
                                self.pickle_this(name, val, result)
                        elif isinstance(val, tuple):
@@ -1576,7 +1637,7 @@ class Config(ConfigSubsection):
                for l in lines:
                        if not l or l[0] == '#':
                                continue
-                       
+
                        n = l.find('=')
                        val = l[n+1:].strip()
 
@@ -1585,10 +1646,10 @@ class Config(ConfigSubsection):
 #                              val = val[:val.find(' ')]
 
                        base = tree
-                       
+
                        for n in names[:-1]:
                                base = base.setdefault(n, {})
-                       
+
                        base[names[-1]] = val
 
                # we inherit from ConfigSubsection, so ...
@@ -1597,8 +1658,9 @@ class Config(ConfigSubsection):
                        self.setSavedValue(tree["config"])
 
        def saveToFile(self, filename):
+               text = self.pickle()
                f = open(filename, "w")
-               f.write(self.pickle())
+               f.write(text)
                f.close()
 
        def loadFromFile(self, filename):
@@ -1617,19 +1679,20 @@ class ConfigFile:
                        config.loadFromFile(self.CONFIG_FILE)
                except IOError, e:
                        print "unable to load config (%s), assuming defaults..." % str(e)
-       
+
        def save(self):
 #              config.save()
                config.saveToFile(self.CONFIG_FILE)
-       
+
        def __resolveValue(self, pickles, cmap):
-               if cmap.has_key(pickles[0]):
+               key = pickles[0]
+               if cmap.has_key(key):
                        if len(pickles) > 1:
-                               return self.__resolveValue(pickles[1:], cmap[pickles[0]].dict())
+                               return self.__resolveValue(pickles[1:], cmap[key].dict())
                        else:
-                               return str(cmap[pickles[0]].value)
+                               return str(cmap[key].value)
                return None
-       
+
        def getResolvedKey(self, key):
                names = key.split('.')
                if len(names) > 1: