AlsaPlayer.py

   1 import Actions
   2 import subprocess
   3
   4 class Player(object):
   5
   6     def __init__(self):
   7         pass
   8
   9     def _command(self,*command):
  10         subprocess.call([ 'alsaplayer' ] + list(command))
  11
  12     def _get_status(self):
  13         status = {}
  14         for line in subprocess.Popen(['alsaplayer', '--status'], stdout=subprocess.PIPE).stdout:
  15             if not ':' in line: continue
  16             k, v = line.split(':',1)
  17             status[k.strip()] = v.strip()
  18         return status
  19
  20     def play(self):
  21         self._command('--start')
  22
  23     def pause(self):
  24         if self._get_status()['speed'] == '0%':
  25             self.speed(1.0)
  26         else:
  27             self.speed(0.0)
  28
  29     def skip(self, distance):
  30         self._command('--relative', str(distance))
  31
  32     def stop(self):
  33         self._command('--stop')
  34
  35     def prev(self):
  36         self._command('--prev')
  37
  38     def next(self):
  39         self._command('--next')
  40
  41     def jump(self, n):
  42         self._command('--jump', str(n))
  43
  44     def clear(self):
  45         self._command('--clear')
  46
  47     def add(self, f):
  48         self._command('--enqueue', str(f))
  49
  50     def speed(self, v):
  51         self._command('--speed', str(v))
  52
  53
  54 class Action(Actions.Action):
  55
  56     def __init__(self, name, action, player, *args):
  57         Actions.Action.__init__(self, name)
  58         self._action = action
  59         self._player = player
  60         self._args = args
  61
  62     def __call__(self, binding):
  63         getattr(self._player, self._action)(*self._args);
  64
  65 class Dispatcher(object):
  66
  67     def __init__(self, action):
  68         self._action = action
  69
  70     def __call__(self, name, *args):
  71         return Action(name, self._action, *args)
  72
  73 Play   = Dispatcher('play')
  74 Pause  = Dispatcher('pause')
  75 Skip   = Dispatcher('skip')
  76 Stop   = Dispatcher('stop')
  77 Toggle = Dispatcher('toggle')
  78 Prev   = Dispatcher('prev')
  79 Next   = Dispatcher('next')
  80 Jump   = Dispatcher('jump')
  81 Clear  = Dispatcher('clear')
  82 Add    = Dispatcher('add')