added Solar application main file

solar.py

@@ -0,0 +1,125 @@
+import time
+import threading
+import subprocess
+from collections import namedtuple
+
+import gobject
+import pygtk
+pygtk.require('2.0')
+import gtk
+
+from logitech import unifying_receiver as ur
+
+
+KEYBOARD_NAME = 'Wireless Solar Keyboard K750'
+TITLE = 'Solar [K750]'
+
+NOTIFY_DESKTOP = True
+BLINK_ICON = 3
+
+OK = 0
+NO_RECEIVER = 1
+NO_K750 = 2
+NO_STATUS = 3
+
+SLEEP = (10, 30, 25, 15)
+TEXT = ('K750 keyboard connected',
+		'Logitech Unifying Receiver not detected',
+		'K750 keyboard not detected',
+		'K750 keyboard not responding')
+# ICON_NAMES = (
+# 				'status_good', 'status_attention',
+# 				'status_attention', 'status_warning'
+# 			)
+CHARGE_LUX_TEXT = 'Charge: %d%%    Lux: %d'
+
+
+K750_Status = namedtuple('K750_Status',
+						['receiver', 'device', 'status', 'charge', 'lux'])
+
+
+def notify_desktop(status_code, text):
+	global NOTIFY_DESKTOP
+	if NOTIFY_DESKTOP:
+		try:
+			program = ('/usr/bin/notify-send', '-u', 'low', TITLE, text)
+			subprocess.Popen(program, close_fds=True)
+		except OSError:
+			NOTIFY_DESKTOP = False
+
+
+def update_status_icon(status_icon, status_changed, k750):
+	text = TEXT[k750.status]
+	if k750.status == OK:
+		text += '\n' + (CHARGE_LUX_TEXT % (k750.charge, k750.lux))
+	# print text
+	status_icon.set_tooltip_text(text)
+
+	if status_changed:
+		notify_desktop(k750.status, text)
+		if BLINK_ICON:
+			status_icon.set_blinking(True)
+			time.sleep(BLINK_ICON)
+			status_icon.set_blinking(False)
+
+
+def read_charge(receiver, device):
+	status, charge, lux = NO_RECEIVER, -1, -1
+
+	if receiver is None:
+		receiver = ur.open()
+		device = None
+
+	if receiver and not device:
+		try:
+			device = ur.find_device(receiver, "keyboard", KEYBOARD_NAME)
+		except ur.NoReceiver:
+			ur.close(receiver)
+			receiver = None
+
+	if receiver:
+		if device:
+			try:
+				charge_lux = ur.get_solar_charge(receiver, device)
+				if charge_lux is None:
+					device = None
+					status = NO_STATUS
+				else:
+					charge, lux = charge_lux
+					status = OK
+			except ur.NoReceiver:
+				ur.close(receiver)
+				receiver = None
+		else:
+			status = NO_K750
+
+	return K750_Status(receiver, device, status, charge, lux)
+
+
+class StatusThread(threading.Thread):
+	def __init__(self, status_icon):
+		super(StatusThread, self).__init__()
+		self.daemon = True
+		self.status_icon = status_icon
+
+	def run(self):
+		last_status = NO_RECEIVER
+		k750 = K750_Status(None, None, NO_RECEIVER, 0, 0)
+
+		while True:
+			k750 = read_charge(k750.receiver, k750.device)
+			status_changed = k750.status != last_status
+			gobject.idle_add(update_status_icon, self.status_icon, status_changed, k750)
+			last_status = k750.status
+			time.sleep(SLEEP[k750.status])
+
+
+if __name__ == "__main__":
+	status_icon = gtk.status_icon_new_from_file('images/icon.png')
+	status_icon.set_title('Solar')
+	status_icon.set_tooltip_text('Initializing...')
+	status_icon.connect("popup_menu", gtk.main_quit)
+
+	gobject.threads_init()
+	StatusThread(status_icon).start()
+	gtk.main()