git.maemo.org Git - zukebox/blob - zukebox_server/src/services/playlist/zukebox_playlist.py

   1
   2 import dbus.service
   3
   4 from brisa.core import log
   5
   6 class PlayList(list, dbus.service.Object):
   7     """Class PlayList
   8     Introduction
   9     ============
  10     Implements a playlist for ZukeBox server.
  11     """
  12
  13     DBUS_SERVICE_NAME = "br.org.zagaia.PlayList"
  14     DBUS_OBJ_PATH = "br/org/zagaia/playlist"
  15     DBUS_IFACE = "br.org.zagaia.PlayList"
  16
  17     def __init__(self, name="", positions=10):
  18         self.name = name
  19         self.positions = positions
  20
  21     def is_locked(self):
  22         if not len(self) == self.positions:
  23             return False
  24         return True
  25
  26     def is_availble(self):
  27         if not len(self) == 0:
  28             return True
  29         return False
  30
  31     @dbus.service.method(DBUS_IFACE)
  32     def append(self, obj):
  33         """Put a object in the playlist"""
  34         if not self.is_locked():
  35             log.info("object in playlist")
  36             self.append(obj)
  37
  38     @dbus.service.method(DBUS_IFACE)
  39     def drop(self):
  40         """Always pop the first object from list"""
  41         if self.is_availble():
  42             self.pop(0)
  43
  44     @dbus.service.method(DBUS_IFACE)
  45     def get_size(self):
  46         """Return the size of playlist"""
  47         return len(self)
  48
  49     @dbus.service.method(DBUS_IFACE)
  50     def previous(self):
  51         if self.is_availble():
  52             pass
  53
  54