120 lines
2.8 KiB
Python
120 lines
2.8 KiB
Python
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import os
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import signal
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import gobject
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from Shell import Shell
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class Process:
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def __init__(self, command):
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self._pid = None
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self._command = command
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def get_name(self):
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return self._command
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def start(self):
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splitted_cmd = self._command.split()
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try:
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self._pid = os.spawnvp(os.P_NOWAIT, splitted_cmd[0], splitted_cmd)
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except Exception, e:
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logging.error('Cannot run %s' % (self.get_name()))
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def stop(self):
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# FIXME Obviously we want to notify the processes to
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# shut down rather then killing them down forcefully.
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print 'Stopping %s (%d)' % (self.get_name(), self._pid)
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os.kill(self._pid, signal.SIGTERM)
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class ActivityProcess(Process):
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def __init__(self, module):
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Process.__init__(self, module.get_exec())
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self._module = module
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def get_name(self):
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return self._module.get_name()
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class DbusProcess(Process):
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def __init__(self):
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Process.__init__(self, "/bin/dbus-daemon --session --print-address")
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def get_name(self):
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return 'Dbus'
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def start(self):
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args = self._command.split()
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(self._pid, ign1, dbus_stdout, ign3) = gobject.spawn_async(
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args, flags=gobject.SPAWN_STDERR_TO_DEV_NULL, standard_output=True)
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dbus_file = os.fdopen(dbus_stdout)
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addr = dbus_file.readline()
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addr = addr.strip()
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dbus_file.close()
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os.environ["DBUS_SESSION_BUS_ADDRESS"] = addr
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class MatchboxProcess(Process):
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def __init__(self):
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Process.__init__(self, 'matchbox-window-manager -use_titlebar no')
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def get_name(self):
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return 'Matchbox'
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class XephyrProcess(Process):
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def __init__(self):
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# FIXME How to pick a free display number?
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self._display = 100
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cmd = 'Xephyr :%d -ac -screen 640x480' % (self._display)
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Process.__init__(self, cmd)
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def get_name(self):
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return 'Xephyr'
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def start(self):
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Process.start(self)
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os.environ['DISPLAY'] = ":%d" % (self._display)
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class Session:
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"""Takes care of running the shell and all the sugar processes"""
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def __init__(self):
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self._processes = []
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self._shell = Shell()
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self._shell.connect('close', self._shell_close_cb)
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self._shell.start()
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def start(self):
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"""Start the session"""
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# FIXME We should not start this on the olpc
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process = XephyrProcess()
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self._processes.insert(0, process)
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process.start()
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process = DbusProcess()
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self._processes.insert(0, process)
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process.start()
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process = MatchboxProcess()
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self._processes.insert(0, process)
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process.start()
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registry = self._shell.get_registry()
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for activity_module in registry.list_activities():
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process = ActivityProcess(activity_module)
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self._processes.insert(0, process)
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process.start()
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try:
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import gtk
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gtk.main()
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except KeyboardInterrupt:
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print 'Ctrl+C pressed, exiting...'
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self.shutdown()
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def _shell_close_cb(self, shell):
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self.shutdown()
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def shutdown(self):
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for process in self._processes:
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process.stop()
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