lib/python/Components/Console.py

   1 from enigma import eConsoleAppContainer
   2 from Tools.BoundFunction import boundFunction
   3
   4 class Console(object):
   5         def __init__(self):
   6                 self.appContainers = {}
   7                 self.appResults = {}
   8                 self.callbacks = {}
   9                 self.extra_args = {}
  10
  11         def ePopen(self, cmd, callback=None, extra_args=[]):
  12                 name = cmd
  13                 i = 0
  14                 while self.appContainers.has_key(name):
  15                         name = cmd +'_'+ str(i)
  16                         i += 1
  17                 print "[ePopen] command:", cmd
  18                 self.appResults[name] = ""
  19                 self.extra_args[name] = extra_args
  20                 self.callbacks[name] = callback
  21                 self.appContainers[name] = eConsoleAppContainer()
  22                 self.appContainers[name].dataAvail.append(boundFunction(self.dataAvailCB,name))
  23                 self.appContainers[name].appClosed.append(boundFunction(self.finishedCB,name))
  24                 if isinstance(cmd, str): # until .execute supports a better api
  25                         cmd = [cmd]
  26                 retval = self.appContainers[name].execute(*cmd)
  27                 if retval:
  28                         self.finishedCB(name, retval)
  29
  30         def eBatch(self, cmds, callback, extra_args=[], debug=False):
  31                 self.debug = debug
  32                 cmd = cmds.pop(0)
  33                 self.ePopen(cmd, self.eBatchCB, [cmds, callback, extra_args])
  34
  35         def eBatchCB(self, data, retval, _extra_args):
  36                 (cmds, callback, extra_args) = _extra_args
  37                 if self.debug:
  38                         print '[eBatch] retval=%s, cmds left=%d, data:\n%s' % (retval, len(cmds), data)
  39                 if len(cmds):
  40                         cmd = cmds.pop(0)
  41                         self.ePopen(cmd, self.eBatchCB, [cmds, callback, extra_args])
  42                 else:
  43                         callback(extra_args)
  44
  45         def dataAvailCB(self, name, data):
  46                 self.appResults[name] += data
  47
  48         def finishedCB(self, name, retval):
  49                 del self.appContainers[name].dataAvail[:]
  50                 del self.appContainers[name].appClosed[:]
  51                 data = self.appResults[name]
  52                 extra_args = self.extra_args[name]
  53                 del self.appContainers[name]
  54                 del self.extra_args[name]
  55                 if self.callbacks[name]:
  56                         self.callbacks[name](data,retval,extra_args)
  57                 del self.callbacks[name]
  58
  59         def kill(self,name):
  60                 if name in self.appContainers:
  61                         print "[Console] killing: ",self.appContainers[name]
  62                         self.appContainers[name].kill()
  63
  64         def killAll(self):
  65                 for name in self.appContainers:
  66                         self.kill(name)