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