132 lines
4.4 KiB
Python
132 lines
4.4 KiB
Python
#!/usr/bin/python
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# LADITools - Linux Audio Desktop Integration Tools
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# Copyright (C) 2011-2012 Alessio Treglia <quadrispro@ubuntu.com>
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# Copyright (C) 2007-2010, Marc-Olivier Barre <marco@marcochapeau.org>
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# Copyright (C) 2007-2009, Nedko Arnaudov <nedko@arnaudov.name>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from enum import Enum
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from .controller import LadiController
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import dbus
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name_base = 'org.ladish'
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control_iface_name = name_base + '.Control'
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studio_iface_name = name_base + '.Studio'
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control_obj_path = "/org/ladish/Control"
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studio_obj_path = "/org/ladish/Studio"
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service_name = name_base
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LadishStatusType = Enum("LadishStatusType",
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"STUDIO_STOPPED NOT_AVAILABLE NO_STUDIO_LOADED STUDIO_RUNNING")
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class LadishProxyError(Exception): pass
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class LadishStudioException(Exception): pass
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def check_ladish():
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"""Connect to ladish and return its current status."""
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try:
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proxy = LadishProxy()
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except Exception as e:
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raise LadishProxyError("ladish proxy creation failed: %s" % e.message)
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if not proxy.is_available():
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return LadishStatusType.NOT_AVAILABLE
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if not proxy.studio_is_loaded():
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return LadishStatusType.NO_STUDIO_LOADED
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else:
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if proxy.studio_is_started():
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return LadishStatusType.STUDIO_RUNNING
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return LadishStatusType.STUDIO_STOPPED
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class LadishProxy(LadiController):
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"""Wrapper for controlling and monitoring ladish.
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This class provides an (almost) complete control on LADI Session Handler.
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"""
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def __init__ (self):
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LadiController.__init__(self,
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dbus_type='SessionBus',
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service_name=service_name,
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obj_path=control_obj_path,
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iface_name=control_iface_name)
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self.studio_obj = self.bus.get_object(service_name, studio_obj_path)
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self.studio_iface = dbus.Interface(self.studio_obj, studio_iface_name)
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def is_started(self):
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raise NotImplementedError
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def is_available(self):
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"""Check if the service is running and a studio is loaded."""
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try:
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self.studio_is_loaded()
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return True
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except Exception as e:
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return False
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def studio_list(self):
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"""Return a list of configured studios."""
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studios = []
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for studio in self.controller_iface.GetStudioList():
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studios.append(studio[0])
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return studios
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def studio_new(self, name=""):
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"""Setup a new studio and name it as <name>."""
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self.controller_iface.NewStudio(name)
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def studio_is_loaded(self):
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"""Check if a studio is loaded."""
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return self.controller_iface.IsStudioLoaded()
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def studio_load(self, name):
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"""Load the studio named <name>."""
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self.controller_iface.LoadStudio(name, {})
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def studio_delete(self, name):
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"""Delete the studio named <name>."""
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self.controller_iface.DeleteStudio(name)
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def kill(self):
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"""Kill the service."""
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self.controller_iface.Exit()
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def studio_start(self):
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"""Start the current studio."""
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self.studio_iface.Start()
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def studio_stop(self):
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"""Stop the current studio."""
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self.studio_iface.Stop()
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def studio_rename(self, new_name):
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"""Rename the current studio to <new_name>."""
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self.studio_iface.Rename(new_name)
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def studio_save(self):
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"""Save the changes to the current studio."""
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self.studio_iface.Save()
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def studio_unload(self):
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"""Unload the current studio."""
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self.studio_iface.Unload()
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def studio_name(self):
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"""Return the current studio's name."""
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return self.studio_iface.GetName()
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def studio_is_started(self):
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"""Check if the current studio is running."""
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return self.studio_iface.IsStarted()
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