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import threading
import subprocess
from gi.repository import GObject
GObject.threads_init()
class Accelerometer():
ACCELEROMETER_DEVICE = '/sys/devices/platform/lis3lv02d/position'
def read_position(self):
"""
return x, y, z values or None if no accelerometer is available
"""
try:
fh = open(self.ACCELEROMETER_DEVICE)
string = fh.read()
xyz = string[1:-2].split(',')
fh.close()
return int(xyz[0]), int(xyz[1]), int(xyz[2])
except:
return 0, 0, 0
class EbookModeDetector(GObject.GObject):
EBOOK_DEVICE = '/dev/input/event4'
__gsignals__ = {
'changed': (GObject.SignalFlags.RUN_FIRST, None, ([bool])), }
def __init__(self):
GObject.GObject.__init__(self)
self._ebook_mode = self._get_initial_value()
self._start_reading()
def get_ebook_mode(self):
return self._ebook_mode
def _get_initial_value(self):
try:
output = subprocess.call(['evtest', '--query', self.EBOOK_DEVICE,
'EV_SW', 'SW_TABLET_MODE'])
# 10 is ebook_mode, 0 is normal
return (output == 10)
except:
return False
def _start_reading(self):
thread = threading.Thread(target=self._read)
thread.start()
def _read(self):
fd = open(self.EBOOK_DEVICE, 'rb')
for x in range(12):
fd.read(1)
value = ord(fd.read(1))
fd.close()
self._ebook_mode = (value == 1)
self.emit('changed', self._ebook_mode)
# restart
GObject.idle_add(self._start_reading)
# TODO: Move to tests
import logging
from gi.repository import Gtk
def log_ebook_mode(detector, ebook_mode):
logging.error('Ebook mode %s', ebook_mode)
def quit(win, detector):
Gtk.main_quit()
def main():
win = Gtk.Window()
win.set_default_size(450, 550)
label = Gtk.Label('Put your xo in ebook mode nd in notebook mode')
win.add(label)
win.show_all()
ebookdetector = EbookModeDetector()
ebookdetector.connect('changed', log_ebook_mode)
win.connect('destroy', quit, ebookdetector)
Gtk.main()
if __name__ == '__main__':
main()
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