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#!/usr/bin/python
import gtk
import dbus
import dbus.service
import subprocess
import time
from dbus.mainloop.glib import DBusGMainLoop
import pynotify

class KeyhandlerDBUSService(dbus.service.Object):
    def __init__(self):
        bus_name = dbus.service.BusName('org.elektranox.keyhandler', bus=dbus.SessionBus())
        dbus.service.Object.__init__(self, bus_name, '/org/elektranox/keyhandler')
        self.bnotice = pynotify.Notification("Backlight", "", "display-brightness-symbolic")
        self.vnotice = pynotify.Notification("Volume", "", "")
        self.wnotice = pynotify.Notification("WLAN", "", "")
        self.mnotice = pynotify.Notification("Mouse", "", "")

    def _lid_status_open(self):
        lidstatus = "state:      unknown"
        with open('/proc/acpi/button/lid/LID/state', 'r') as lidstatefile:
            lidstatus = lidstatefile.read()
        lidstatus = lidstatus.strip().replace("state:      ", "")
        return lidstatus == "open"

    def _dock_status_docked(self):
        popen = subprocess.Popen(['/usr/bin/lsusb', '-d', '17ef:1010'])
        popen.wait()
        return not popen.returncode

    def _bluetooth_set_status(self, state):
        bus = dbus.SystemBus()
        dev = bus.get_object("org.bluez", u'/org/bluez/hci0')
        iface = dbus.Interface(dev, 'org.freedesktop.DBus.Properties')
        iface.Set("org.bluez.Adapter1", "Powered", state)

    def _bluetooth_get_status(self, state):
        bus = dbus.SystemBus()
        dev = bus.get_object("org.bluez", u'/org/bluez/hci0')
        iface = dbus.Interface(dev, 'org.freedesktop.DBus.Properties')
        return iface.Get("org.bluez.Adapter1", "Powered")

    def _getBacklight(self):
        with open("/sys/class/backlight/intel_backlight/brightness", "r") as f:
            return int(f.readline().strip())

    def _getMaxBacklight(self):
        with open("/sys/class/backlight/intel_backlight/max_brightness", "r") as f:
            return int(f.readline().strip())

    def _setBacklight(self, value):
        with open("/sys/class/backlight/intel_backlight/brightness", "w") as f:
            f.write(str(value))

    def _showBacklightState(self):
        state = self._getBacklight() * 100 / self._getMaxBacklight()
        self.bnotice.set_hint_int32("value", int(state))
        self.bnotice.set_hint_string("synchronous", "brightness")
        self.bnotice.show()

    def _showVolumeState(self):
        popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'get', 'Master'], stdout = subprocess.PIPE)
        popen.wait()
        (stdout,stderr) = popen.communicate(None)
        lines = stdout.split("\n")
        state = int(lines[-2].split()[3][1:-2])
        muted = lines[-2].split()[5][1:-1] == "off"
        if muted:
            self.vnotice.set_property("icon-name", "audio-volume-muted")
        elif state < 20:
            self.vnotice.set_property("icon-name", "audio-volume-low")
        elif state < 60:
            self.vnotice.set_property("icon-name", "audio-volume-medium")
        else:
            self.vnotice.set_property("icon-name", "audio-volume-high")
        self.vnotice.set_hint_int32("value", state)
        self.vnotice.set_hint_string("synchronous", "volume")
        self.vnotice.show()

    def _rfkill_get(self, rfid):
        popen = subprocess.Popen(['/usr/sbin/rfkill', 'list', rfid], stdout = subprocess.PIPE)
        popen.wait()
        (stdout,stderr) = popen.communicate()
        return stdout.split("\n")[1].split(" ")[2] == "no"

    def _showMicState(self):
        popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'get', 'Capture'], stdout = subprocess.PIPE)
        popen.wait()
        (stdout,stderr) = popen.communicate(None)
        lines = stdout.split("\n")
        state = int(lines[-2].split()[4][1:-2])
        muted = lines[-2].split()[6][1:-1] == "off"
        if muted:
            self.vnotice.set_property("icon-name", "microphone-sensitivity-muted")
        elif state < 20:
            self.vnotice.set_property("icon-name", "microphone-sensitivity-low")
        elif state < 60:
            self.vnotice.set_property("icon-name", "microphone-sensitivity-medium")
        else:
            self.vnotice.set_property("icon-name", "microphone-sensitivity-high")
        self.vnotice.set_hint_int32("value", state)
        self.vnotice.set_hint_string("synchronous", "volume")
        self.vnotice.show()

    @dbus.service.method('org.elektranox.keyhandler')
    def volumeMute(self):
        #popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'set', 'Master', 'toggle'])
        popen = subprocess.Popen(['/usr/bin/pactl', 'set-sink-mute', 'alsa_output.pci-0000_00_1b.0.analog-stereo', 'toggle'])
        popen.wait()
        self._showVolumeState()

    @dbus.service.method('org.elektranox.keyhandler')
    def volumeDec(self):
        popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'set', 'Master', '2%-'])
        popen.wait()
        self._showVolumeState()

    @dbus.service.method('org.elektranox.keyhandler')
    def volumeInc(self):
        popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'set', 'Master', '2%+'])
        popen.wait()
        self._showVolumeState()

    @dbus.service.method('org.elektranox.keyhandler')
    def micMute(self):
        #popen = subprocess.Popen(['/usr/bin/amixer', '-c', 'PCH', 'set', 'Master', 'toggle'])
        popen = subprocess.Popen(['/usr/bin/amixer', 'set', 'Capture', 'toggle'])
        popen.wait()
        self._showMicState()

    @dbus.service.method('org.elektranox.keyhandler')
    def backlightDec(self):
        brightness = self._getBacklight() - 5
        if brightness < 0:
            brightness = 0
        self._setBacklight(brightness)
        self._showBacklightState()

    @dbus.service.method('org.elektranox.keyhandler')
    def backlightInc(self):
        brightness = self._getBacklight() + 5
        if brightness > self._getMaxBacklight():
            brightness = self._getMaxBacklight()
        self._setBacklight(brightness)
        self._showBacklightState()

    @dbus.service.method('org.elektranox.keyhandler')
    def XF86Display(self):
        lidopen = self._lid_status_open()
        docked = self._dock_status_docked()
        if not docked:
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'eDP1', '--auto'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'DP2-1', '--off'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/notify-send','Not docked'])
            popen.wait()
        elif lidopen:
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'eDP1', '--auto'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'DP2-1', '--right-of', 'eDP1', '--auto'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/notify-send','Docked with open lid'])
            popen.wait()
        else:
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'DP2-1', '--right-of', 'eDP1', '--auto'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/xrandr','--output', 'eDP1', '--off'])
            popen.wait()
            popen = subprocess.Popen(['/usr/bin/notify-send','Docked with closed lid'])
            popen.wait()

    @dbus.service.method('org.elektranox.keyhandler')
    def WLAN(self):
        # button itself is handled by systemd
        state = self._rfkill_get("wlan")
        if state:
                self.wnotice.set_property("icon-name", "network-wireless-symbolic")
                self.wnotice.set_property("summary", "enabled")
        else:
                self.wnotice.set_property("icon-name", "network-wireless-offline-symbolic")
                self.wnotice.set_property("summary", "disabled")
        self.wnotice.show()

    @dbus.service.method('org.elektranox.keyhandler')
    def XF86Tools(self):
        popen = subprocess.Popen(['/usr/local/bin/toggle-mouse-wheel-emulation'], stdout = subprocess.PIPE)
        popen.wait()
        (stdout,stderr) = popen.communicate(None)
        enabled = (stdout.find("enabled") != -1)
        self.mnotice.set_property("icon-name", "/usr/share/icons/mate/48x48/devices/input-mouse.png")
        if enabled:
                self.mnotice.set_property("summary", "Mouse Wheel Emulation enabled")
        else:
                self.mnotice.set_property("summary", "Mouse Wheel Emulation disabled")
        self.mnotice.show()

    @dbus.service.method('org.elektranox.keyhandler')
    def XF86Search(self):
        popen = subprocess.Popen(['/usr/bin/notify-send','XF86Search'])
        popen.wait()
        # TODO: add some fancy binding
        pass

    @dbus.service.method('org.elektranox.keyhandler')
    def XF86LaunchA(self):
        popen = subprocess.Popen(['/usr/bin/notify-send','XF86LaunchA'])
        popen.wait()
        # TODO: add some fancy binding
        pass

    @dbus.service.method('org.elektranox.keyhandler')
    def XF86Explorer(self):
        state = self._rfkill_get("bluetooth")
        if state:
            subprocess.call(['/usr/sbin/rfkill','block', 'bluetooth'])
            self.wnotice.set_property("icon-name", "/usr/share/icons/gnome/scalable/status/bluetooth-disabled-symbolic.svg")
            self.wnotice.set_property("summary", "RF blocked")
        else:
            subprocess.call(['/usr/sbin/rfkill','unblock', 'bluetooth'])
            self.wnotice.set_property("icon-name", "/usr/share/icons/gnome/scalable/status/bluetooth-active-symbolic.svg")
            self.wnotice.set_property("summary", "RF unblocked")
        self.wnotice.show()
        if not state:
            time.sleep(1)
            self._bluetooth_set_status(True)

DBusGMainLoop(set_as_default=True)
service = KeyhandlerDBUSService()
pynotify.init("TP Keyhandler")
gtk.main()