lib/python/Components/FileList.py

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