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# -*- python -*-
'''
xpybar – xmobar replacement written in python
Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
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 3 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, see <http://www.gnu.org/licenses/>.
'''
import Xlib.XK
from x import *
class XKB:
'''
X keyboard monitor
'''
NUM = 1
'''
:int The bit in `get_locks` representing Num Lock
'''
CAPS = 2
'''
:int The bit in `get_locks` representing Royal Canterlot Voice
'''
SCROLL = 4
'''
:int The bit in `get_locks` representing Scroll Lock
'''
def __init__(self):
'''
Constructor
'''
self.__root = get_screen().root
lockkey = lambda lock : get_display().keysym_to_keycode(Xlib.XK.string_to_keysym(lock + '_Lock'))
find = lambda array, item : (1 << array.index(item)) if item in array else -1
mods = [x[0] for x in get_display().get_modifier_mapping()]
self.__num = find(mods, lockkey('Num'))
self.__caps = find(mods, lockkey('Caps'))
self.__scroll = find(mods, lockkey('Scroll'))
# TODO add update listener
def get_locks(self):
'''
Get the currently active lock keys (num lock, caps lock and scroll lock, but not compose)
@return :int The bitwise OR of the active lock keys (XKB.NUM, XKB.CAPS, XKB.SCROLL)
'''
mask = self.__root.query_pointer().mask
rc = 0
rc |= XKB.NUM if (mask & self.__num) == self.__num else 0
rc |= XKB.CAPS if (mask & self.__caps) == self.__caps else 0
rc |= XKB.SCROLL if (mask & self.__scroll) == self.__scroll else 0
return rc
def get_locks_str(self):
'''
Get the currently active lock keys (num lock, caps lock and scroll lock, but not compose)
@return :list<str> A list of locks in title case ('Num', 'Caps', 'Scroll')
'''
mask = self.__root.query_pointer().mask
rc = []
if (mask & self.__num) == self.__num: rc.append('Num')
if (mask & self.__caps) == self.__caps: rc.append('Caps')
if (mask & self.__scroll) == self.__scroll: rc.append('Scroll')
return rc
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