def _inner(self):
'''
Queries an object for another interface.
@return: An object with the desired interface
@rtype: object
@raise NotImplementedError: When the desired interface is not supported
'''
iid = utils.getInterfaceIID(interface)
try:
i = self._icache[iid]
except KeyError:
# interface not cached
caching = True
except AttributeError:
# determine if we're caching
caching = _CACHE_LEVEL is not None
if caching:
# initialize the cache
self._icache = {}
else:
# check if our cached result was an interface, or an indicator that the
# interface is not supported
if i is None:
raise NotImplementedError
else:
return i
try:
# do the query remotely
i = self.queryInterface(iid)
if i is not None:
i = i._narrow(interface)
except Exception, e:
raise LookupError(e)
def _inner(self):
'''
Queries an object for another interface.
@return: An object with the desired interface
@rtype: object
@raise NotImplementedError: When the desired interface is not supported
'''
iid = utils.getInterfaceIID(interface)
try:
i = self._icache[iid]
except KeyError:
# interface not cached
caching = True
except AttributeError:
# determine if we're caching
caching = _CACHE_LEVEL is not None
if caching:
# initialize the cache
self._icache = {}
else:
# check if our cached result was an interface, or an indicator that the
# interface is not supported
if i is None:
raise NotImplementedError
else:
return i
try:
# do the query remotely
i = self.queryInterface(iid)
if i is not None:
i = i._narrow(interface)
except Exception, e:
raise LookupError(e)
def queryInterface(self, repo_id):
'''
Reports that this class only implements the AT-SPI DeviceEventListener
interface. Required by AT-SPI.
@param repo_id: Request for an interface
@type repo_id: string
@return: The underlying CORBA object for the device event listener
@rtype: Accessibility.EventListener
'''
if repo_id == utils.getInterfaceIID(Accessibility.EventListener):
return self._this()
else:
return None
