1 files changed, 94 insertions, 0 deletions
diff --git a/extensions/cpsection/power/model.py b/extensions/cpsection/power/model.py
new file mode 100644
index 0000000..8b6a1d3
--- /dev/null
+++ b/extensions/cpsection/power/model.py
@@ -0,0 +1,94 @@
+# Copyright (C) 2008 One Laptop Per Child
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+import os
+from gettext import gettext as _
+import logging
+
+import gconf
+import dbus
+
+OHM_SERVICE_NAME = 'org.freedesktop.ohm'
+OHM_SERVICE_PATH = '/org/freedesktop/ohm/Keystore'
+OHM_SERVICE_IFACE = 'org.freedesktop.ohm.Keystore'
+
+POWERD_FLAG_DIR = '/etc/powerd/flags'
+POWERD_INHIBIT_FLAG = '/etc/powerd/flags/inhibit-suspend'
+
+_logger = logging.getLogger('ControlPanel - Power')
+
+
+class ReadError(Exception):
+    def __init__(self, value):
+        self.value = value
+
+    def __str__(self):
+        return repr(self.value)
+
+
+def using_powerd():
+    # directory exists if powerd running, and it's recent
+    # enough to be controllable.
+    return os.access(POWERD_FLAG_DIR, os.W_OK)
+
+
+def get_automatic_pm():
+    if using_powerd():
+        return not os.access(POWERD_INHIBIT_FLAG, os.R_OK)
+
+    # ohmd
+    client = gconf.client_get_default()
+    return client.get_bool('/desktop/sugar/power/automatic')
+
+
+def print_automatic_pm():
+    print ('off', 'on')[get_automatic_pm()]
+
+
+def set_automatic_pm(enabled):
+    """Automatic suspends on/off."""
+
+    if using_powerd():
+        # powerd
+        if enabled == 'off' or enabled == 0:
+            try:
+                fd = open(POWERD_INHIBIT_FLAG, 'w')
+            except IOError:
+                _logger.debug('File %s is not writeable' % POWERD_INHIBIT_FLAG)
+            else:
+                fd.close()
+        else:
+            os.unlink(POWERD_INHIBIT_FLAG)
+        return
+
+    # ohmd
+    bus = dbus.SystemBus()
+    proxy = bus.get_object(OHM_SERVICE_NAME, OHM_SERVICE_PATH)
+    keystore = dbus.Interface(proxy, OHM_SERVICE_IFACE)
+
+    if enabled == 'on' or enabled == 1:
+        keystore.SetKey('suspend.automatic_pm', 1)
+        enabled = True
+    elif enabled == 'off' or enabled == 0:
+        keystore.SetKey('suspend.automatic_pm', 0)
+        enabled = False
+    else:
+        raise ValueError(_('Error in automatic pm argument, use on/off.'))
+
+    client = gconf.client_get_default()
+    client.set_bool('/desktop/sugar/power/automatic', enabled)
+    return