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import dbus
import gobject
from sugar import env
from view.hardwaremanager import HardwareManager
from model.ShellModel import ShellModel
from _sugar import KeyGrabber
import sugar
_actions_table = {
'F1' : 'zoom_mesh',
'F2' : 'zoom_friends',
'F3' : 'zoom_home',
'F4' : 'zoom_activity',
'F5' : 'brightness_1',
'F6' : 'brightness_2',
'F7' : 'brightness_3',
'F8' : 'brightness_4',
'F9' : 'volume_1',
'F10' : 'volume_2',
'F11' : 'volume_3',
'F12' : 'volume_4',
'<alt>F5' : 'color_mode',
'<alt>F8' : 'b_and_w_mode',
'<alt>equal' : 'console',
'<alt>0' : 'console',
'<alt>f' : 'frame',
'0x93' : 'frame',
'<alt>o' : 'overlay',
'0xE0' : 'overlay',
'0xDC' : 'camera',
'0x7C' : 'shutdown',
'<alt><shift>s' : 'shutdown',
'0xEB' : 'rotate',
'<alt>r' : 'rotate',
'0xEC' : 'keyboard_brightness',
'<alt>Tab' : 'home'
}
class KeyHandler(object):
def __init__(self, shell):
self._shell = shell
self._hw_manager = shell.get_hardware_manager()
self._audio_manager = shell.get_audio_manager()
self._key_grabber = KeyGrabber()
self._key_grabber.connect('key-pressed',
self._key_pressed_cb)
self._key_grabber.connect('key-released',
self._key_released_cb)
for key in _actions_table.keys():
self._key_grabber.grab(key)
def handle_zoom_mesh(self):
self._shell.set_zoom_level(sugar.ZOOM_MESH)
def handle_zoom_friends(self):
self._shell.set_zoom_level(sugar.ZOOM_FRIENDS)
def handle_zoom_home(self):
self._shell.set_zoom_level(sugar.ZOOM_HOME)
def handle_zoom_activity(self):
self._shell.set_zoom_level(sugar.ZOOM_ACTIVITY)
def handle_brightness_1(self):
self._hw_manager.set_display_brightness(0)
def handle_brightness_2(self):
self._hw_manager.set_display_brightness(5)
def handle_brightness_3(self):
self._hw_manager.set_display_brightness(9)
def handle_brightness_4(self):
self._hw_manager.set_display_brightness(15)
def handle_volume_1(self):
self._audio_manager.set_volume(0)
def handle_volume_2(self):
self._audio_manager.set_volume(40)
def handle_volume_3(self):
self._audio_manager.set_volume(75)
def handle_volume_4(self):
self._audio_manager.set_volume(100)
def handle_color_mode(self):
self._hw_manager.set_display_mode(HardwareManager.COLOR_MODE)
def handle_b_and_w_mode(self):
self._hw_manager.set_display_mode(HardwareManager.B_AND_W_MODE)
def handle_console(self):
gobject.idle_add(self._toggle_console_visibility_cb)
def handle_frame(self):
self._shell.get_frame().notify_key_press()
def handle_overlay(self):
self._shell.toggle_chat_visibility()
def handle_camera(self):
current_activity = self._shell.get_current_activity()
if current_activity:
if current_activity.execute('camera', []):
return
self._shell.start_activity('org.laptop.CameraActivity')
def handle_shutdown(self):
model = self._shell.get_model()
model.props.state = ShellModel.STATE_SHUTDOWN
if env.is_emulator():
return
bus = dbus.SystemBus()
proxy = bus.get_object('org.freedesktop.Hal',
'/org/freedesktop/Hal/devices/computer')
mgr = dbus.Interface(proxy, 'org.freedesktop.Hal.Device.SystemPowerManagement')
mgr.Shutdown()
def handle_keyboard_brightness(self):
self._hw_manager.toggle_keyboard_brightness()
def _key_pressed_cb(self, grabber, key):
action = _actions_table[key]
method = getattr(self, 'handle_' + action)
method()
def _key_released_cb(self, grabber, key):
if key == '<shft><alt>F9':
self._frame.notify_key_release()
elif key == '0x93':
self._frame.notify_key_release()
def _toggle_console_visibility_cb(self):
bus = dbus.SessionBus()
proxy = bus.get_object('org.laptop.sugar.Console',
'/org/laptop/sugar/Console')
console = dbus.Interface(proxy, 'org.laptop.sugar.Console')
console.toggle_visibility()
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