lib/python/Components/FileList.py

   1 import re
   2
   3 from os import path as os_path, listdir
   4 from MenuList import MenuList
   5 from Components.Harddisk import harddiskmanager
   6
   7 from Tools.Directories import SCOPE_SKIN_IMAGE, resolveFilename
   8
   9 from enigma import RT_HALIGN_LEFT, eListbox, eListboxPythonMultiContent, \
  10         eServiceReference, eServiceCenter, gFont
  11 from Tools.LoadPixmap import LoadPixmap
  12
  13 EXTENSIONS = {
  14                 "mp3": "music",
  15                 "wav": "music",
  16                 "ogg": "music",
  17                 "jpg": "picture",
  18                 "jpeg": "picture",
  19                 "png": "picture",
  20                 "bmp": "picture",
  21                 "ts": "movie",
  22                 "avi": "movie",
  23                 "mpg": "movie",
  24                 "mpeg": "movie",
  25                 "mkv": "movie",
  26                 "avi": "movie",
  27         }
  28
  29 def FileEntryComponent(name, absolute = None, isDir = False):
  30         res = [ (absolute, isDir) ]
  31         res.append((eListboxPythonMultiContent.TYPE_TEXT, 35, 1, 470, 20, 0, RT_HALIGN_LEFT, name))
  32         if isDir:
  33                 png = LoadPixmap(resolveFilename(SCOPE_SKIN_IMAGE, "extensions/directory.png"))
  34         else:
  35                 extension = name.split('.')
  36                 extension = extension[-1].lower()
  37                 if EXTENSIONS.has_key(extension):
  38                         png = LoadPixmap(resolveFilename(SCOPE_SKIN_IMAGE, "extensions/" + EXTENSIONS[extension] + ".png"))
  39                 else:
  40                         png = None
  41         if png is not None:
  42                 res.append((eListboxPythonMultiContent.TYPE_PIXMAP_ALPHATEST, 10, 2, 20, 20, png))
  43
  44         return res
  45
  46 class FileList(MenuList):
  47         def __init__(self, directory, showDirectories = True, showFiles = True, showMountpoints = True, matchingPattern = None, useServiceRef = False, inhibitDirs = False, inhibitMounts = False, enableWrapAround = False, additionalExtensions = None):
  48                 MenuList.__init__(self, list, enableWrapAround, eListboxPythonMultiContent)
  49                 self.additional_extensions = additionalExtensions
  50                 self.mountpoints = []
  51                 self.current_directory = None
  52                 self.current_mountpoint = None
  53                 self.useServiceRef = useServiceRef
  54                 self.showDirectories = showDirectories
  55                 self.showMountpoints = showMountpoints
  56                 self.showFiles = showFiles
  57                 # example: matching .nfi and .ts files: "^.*\.(nfi|ts)"
  58                 self.matchingPattern = matchingPattern
  59                 self.inhibitDirs = inhibitDirs or []
  60                 self.inhibitMounts = inhibitMounts or []
  61
  62                 self.refreshMountpoints()
  63                 self.changeDir(directory)
  64                 self.l.setFont(0, gFont("Regular", 18))
  65                 self.l.setItemHeight(23)
  66                 self.serviceHandler = eServiceCenter.getInstance()
  67
  68         def refreshMountpoints(self):
  69                 self.mountpoints = [os_path.join(p.mountpoint, "") for p in harddiskmanager.getMountedPartitions()]
  70                 self.mountpoints.sort(reverse = True)
  71
  72         def getMountpoint(self, file):
  73                 file = os_path.join(os_path.realpath(file), "")
  74                 for m in self.mountpoints:
  75                         if file.startswith(m):
  76                                 return m
  77                 return False
  78
  79         def getMountpointLink(self, file):
  80                 if os_path.realpath(file) == file:
  81                         return self.getMountpoint(file)
  82                 else:
  83                         if file[-1] == "/":
  84                                 file = file[:-1]
  85                         mp = self.getMountpoint(file)
  86                         last = file
  87                         file = os_path.dirname(file)
  88                         while last != "/" and mp == self.getMountpoint(file):
  89                                 last = file
  90                                 file = os_path.dirname(file)
  91                         return os_path.join(last, "")
  92
  93         def getSelection(self):
  94                 if self.l.getCurrentSelection() is None:
  95                         return None
  96                 return self.l.getCurrentSelection()[0]
  97
  98         def getCurrentEvent(self):
  99                 l = self.l.getCurrentSelection()
 100                 if not l or l[0][1] == True:
 101                         return None
 102                 else:
 103                         return self.serviceHandler.info(l[0][0]).getEvent(l[0][0])
 104
 105         def getFileList(self):
 106                 return self.list
 107
 108         def inParentDirs(self, dir, parents):
 109                 dir = os_path.realpath(dir)
 110                 for p in parents:
 111                         if dir.startswith(p):
 112                                 return True
 113                 return False
 114
 115         def changeDir(self, directory, select = None):
 116                 self.list = []
 117
 118                 if directory and not os_path.isdir(directory):
 119                         directory = None
 120                 # if we are just entering from the list of mount points:
 121                 if self.current_directory is None:
 122                         if directory and self.showMountpoints:
 123                                 self.current_mountpoint = self.getMountpointLink(directory)
 124                         else:
 125                                 self.current_mountpoint = None
 126                 self.current_directory = directory
 127                 directories = []
 128                 files = []
 129
 130                 if directory is None and self.showMountpoints: # present available mountpoints
 131                         for p in harddiskmanager.getMountedPartitions():
 132                                 path = os_path.join(p.mountpoint, "")
 133                                 if path not in self.inhibitMounts and not self.inParentDirs(path, self.inhibitDirs):
 134                                         self.list.append(FileEntryComponent(name = p.description, absolute = path, isDir = True))
 135                         files = [ ]
 136                         directories = [ ]
 137                 elif self.useServiceRef:
 138                         root = eServiceReference("2:0:1:0:0:0:0:0:0:0:" + directory)
 139                         if self.additional_extensions:
 140                                 root.setName(self.additional_extensions)
 141                         serviceHandler = eServiceCenter.getInstance()
 142                         list = serviceHandler.list(root)
 143
 144                         while 1:
 145                                 s = list.getNext()
 146                                 if not s.valid():
 147                                         del list
 148                                         break
 149                                 if s.flags & s.mustDescent:
 150                                         directories.append(s.getPath())
 151                                 else:
 152                                         files.append(s)
 153                         directories.sort()
 154                         files.sort()
 155                 else:
 156                         if os_path.exists(directory):
 157                                 files = listdir(directory)
 158                                 files.sort()
 159                                 tmpfiles = files[:]
 160                                 for x in tmpfiles:
 161                                         if os_path.isdir(directory + x):
 162                                                 directories.append(directory + x + "/")
 163                                                 files.remove(x)
 164
 165                 if directory is not None and self.showDirectories:
 166                         if directory == self.current_mountpoint and self.showMountpoints:
 167                                 self.list.append(FileEntryComponent(name = "<" +_("List of Storage Devices") + ">", absolute = None, isDir = True))
 168                         elif (directory != "/") and not (self.inhibitMounts and self.getMountpoint(directory) in self.inhibitMounts):
 169                                 self.list.append(FileEntryComponent(name = "<" +_("Parent Directory") + ">", absolute = '/'.join(directory.split('/')[:-2]) + '/', isDir = True))
 170
 171                 if self.showDirectories:
 172                         for x in directories:
 173                                 if not (self.inhibitMounts and self.getMountpoint(x) in self.inhibitMounts) and not self.inParentDirs(x, self.inhibitDirs):
 174                                         name = x.split('/')[-2]
 175                                         self.list.append(FileEntryComponent(name = name, absolute = x, isDir = True))
 176
 177                 if self.showFiles:
 178                         for x in files:
 179                                 if self.useServiceRef:
 180                                         path = x.getPath()
 181                                         name = path.split('/')[-1]
 182                                 else:
 183                                         path = directory + x
 184                                         name = x
 185
 186                                 if (self.matchingPattern is None) or re.compile(self.matchingPattern).search(path):
 187                                         self.list.append(FileEntryComponent(name = name, absolute = x , isDir = False))
 188
 189                 self.l.setList(self.list)
 190
 191                 if select is not None:
 192                         i = 0
 193                         self.moveToIndex(0)
 194                         for x in self.list:
 195                                 p = x[0][0]
 196
 197                                 if isinstance(p, eServiceReference):
 198                                         p = p.getPath()
 199
 200                                 if p == select:
 201                                         self.moveToIndex(i)
 202                                 i += 1
 203
 204         def getCurrentDirectory(self):
 205                 return self.current_directory
 206
 207         def canDescent(self):
 208                 if self.getSelection() is None:
 209                         return False
 210                 return self.getSelection()[1]
 211
 212         def descent(self):
 213                 if self.getSelection() is None:
 214                         return
 215                 self.changeDir(self.getSelection()[0], select = self.current_directory)
 216
 217         def getFilename(self):
 218                 if self.getSelection() is None:
 219                         return None
 220                 x = self.getSelection()[0]
 221                 if isinstance(x, eServiceReference):
 222                         x = x.getPath()
 223                 return x
 224
 225         def getServiceRef(self):
 226                 if self.getSelection() is None:
 227                         return None
 228                 x = self.getSelection()[0]
 229                 if isinstance(x, eServiceReference):
 230                         return x
 231                 return None
 232
 233         def execBegin(self):
 234                 harddiskmanager.on_partition_list_change.append(self.partitionListChanged)
 235
 236         def execEnd(self):
 237                 harddiskmanager.on_partition_list_change.remove(self.partitionListChanged)
 238
 239         def refresh(self):
 240                 self.changeDir(self.current_directory, self.getFilename())
 241
 242         def partitionListChanged(self, action, device):
 243                 self.refreshMountpoints()
 244                 if self.current_directory is None:
 245                         self.refresh()