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import os
import signal
from ConfigParser import ConfigParser
import pygtk
pygtk.require('2.0')
import gtk
from shell import Shell
from sugar import env
class Session:
def __init__(self):
self._activity_processes = {}
def start(self):
shell = Shell()
shell.connect('close', self._shell_close_cb)
shell.start()
self._run_activities()
def _run_activities(self):
base_dirs = []
base_dirs.append(env.get_activities_dir())
base_dirs.append(os.path.join(env.get_user_dir(), 'activities'))
for base_dir in base_dirs:
if os.path.isdir(base_dir):
for filename in os.listdir(base_dir):
activity_dir = os.path.join(base_dir, filename)
if os.path.isdir(activity_dir):
self._run_activity(os.path.abspath(activity_dir))
def _run_activity(self, activity_dir):
env.add_to_python_path(activity_dir)
activities = []
for filename in os.listdir(activity_dir):
if filename.endswith(".activity"):
path = os.path.join(activity_dir, filename)
cp = ConfigParser()
cp.read([path])
python_class = cp.get('Activity', "python_class")
activities.append(python_class)
for activity in activities:
args = [ 'python', '-m', activity ]
pid = os.spawnvp(os.P_NOWAIT, 'python', args)
self._activity_processes[activity] = pid
try:
gtk.main()
except KeyboardInterrupt:
print 'Ctrl+C pressed, exiting...'
self.shutdown()
def _shell_close_cb(self, shell):
self.shutdown()
def shutdown(self):
# FIXME Obviously we want to notify the activities to
# shutt down rather then killing them down forcefully.
for name in self._activity_processes.keys():
print 'Shutting down %s' % (name)
os.kill(self._activity_processes[name], signal.SIGTERM)
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