new file: xopower.py

Try to make the power management code a reuseable routine.  Replace
file sharing code with the latest code from the core Read activity.

1 files changed, 75 insertions, 0 deletions

diff --git a/xopower.py b/xopower.py
new file mode 100644
index 0000000..171d14f
--- /dev/null
+++ b/xopower.py
@@ -0,0 +1,75 @@
+#! /usr/bin/env python
+
+# Copyright (C) 2009 James D. Simmons
+#
+# 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
+
+_HARDWARE_MANAGER_INTERFACE = 'org.laptop.HardwareManager'
+_HARDWARE_MANAGER_SERVICE = 'org.laptop.HardwareManager'
+_HARDWARE_MANAGER_OBJECT_PATH = '/org/laptop/HardwareManager'
+
+_logger = logging.getLogger('read-etexts-activity')
+
+# start with sleep off
+sleep_inhibit = True
+
+def setup_idle_timeout():
+    # Set up for idle suspend
+    _idle_timer = 0
+    _service = None
+        
+    fname = os.path.join('/etc', 'inhibit-ebook-sleep')
+    if not os.path.exists(fname):
+        try:
+            bus = dbus.SystemBus()
+            proxy = bus.get_object(_HARDWARE_MANAGER_SERVICE,
+                                   _HARDWARE_MANAGER_OBJECT_PATH)
+            _service = dbus.Interface(proxy, _HARDWARE_MANAGER_INTERFACE)
+            logging.debug('Suspend on idle enabled')
+        except dbus.DBusException, e:
+            _logger.info('Hardware manager service not found, no idle suspend.')
+    else:
+        logging.debug('Suspend on idle disabled')
+
+def _now_active_cb(widget, pspec):
+    if props.active:
+        # Now active, start initial suspend timeout
+        if _idle_timer > 0:
+            gobject.source_remove(_idle_timer)
+        _idle_timer = gobject.timeout_add(15000, _suspend_cb)
+        sleep_inhibit = False
+    else:
+        # Now inactive
+        sleep_inhibit = True
+
+def turn_on_sleep_timer():
+    sleep_inhibit = False
+    reset_sleep_timer()
+
+def turn_off_sleep_timer():
+    sleep_inhibit = True
+
+def reset_sleep_timer():
+    if _idle_timer > 0:
+        gobject.source_remove(_idle_timer)
+    _idle_timer = gobject.timeout_add(5000, _suspend_cb)
+
+def _suspend_cb():
+    # If the machine has been idle for 5 seconds, suspend
+    _idle_timer = 0
+    if not sleep_inhibit:
+        _service.set_kernel_suspend()
+    return False
+