keyboardDetection.py

#!/usr/bin/python
"""Originally written for Apple's py2, detects keyboard layout/loads localization
   Last tested on ~10.14, sets input/region/language for Japan and assumed US OS version
   Commented-out formats for other regions, not implemented"""
import copy
import json
import subprocess
import plistlib
import sys
cmd = ['ioreg', '-rln', 'AppleHIDKeyboardEventDriverV2', '-a']
results = subprocess.check_output(cmd)
structured = plistlib.readPlistFromString(results)
FROM_IOREG = structured[0].get('KeyboardLanguage')
DEF_WRITE = ['/usr/bin/defaults', 'write']
if FROM_IOREG == 'U.S.':
    print 'US, no customizations needed'
    sys.exit(0)
else:
    login_cmd = list(DEF_WRITE)
    login_cmd.extend(['/Library/Preferences/com.apple.loginwindow', 'showInputMenu',
                      '-bool', 'TRUE'])
    subprocess.call(login_cmd)
# layouts_dict = {'Japanese Keyboard': 15,
#                 'British': 2,
#                 'German': 3,
#                 'French': 1}

if FROM_IOREG == 'Japanese Keyboard':
    globpref_cmd = list(DEF_WRITE)
    globpref_cmd.extend(['/Library/Preferences/.GlobalPreferences',
                         'AppleLocale', 'ja_JP'])
    subprocess.call(globpref_cmd)
    country_cmd = globpref_cmd[:-2]
    country_cmd.extend(['Country', 'JP'])
    subprocess.call(country_cmd)
    lang_cmd = globpref_cmd[:-2]
    lang_cmd.extend(['AppleLanguages', '-array', 'ja'])
    subprocess.call(lang_cmd)
    hitool_dict = {'AppleCurrentKeyboardLayoutInputSourceID': 'com.apple.keylayout.US'}
    def_ascii = {'InputSourceKind': 'Keyboard Layout',
                 'KeyboardLayout Name': 'U.S.',
                 'KeyboardLayout ID': 0}
    inmode = 'Input Mode'
    input_prefix = 'com.apple.inputmethod.'
    dict_base = {'InputSourceKind': inmode,
                 'Bundle ID': 'com.apple.inputmethod.Kotoeri'}
    nest_one, nest_two, nest_three = dict_base.copy(), dict_base.copy(), dict_base.copy()
    nest_one[inmode] = input_prefix + 'Roman'
    nest_two[inmode] = input_prefix + 'Japanese'
    nest_three[inmode] = input_prefix + 'Japanese.Katakana'
    enabled_list = [nest_one, nest_two, nest_three]
    hitool_dict['AppleDefaultAsciiInputSource'] = def_ascii
    hitool_dict['AppleEnabledInputSources'] = enabled_list
    hitool_dict['AppleInputSourceHistory'] = enabled_list
    hitool_dict['AppleSelectedInputSources'] = [nest_one]
    plistlib.writePlist(hitool_dict, '/Library/Preferences/com.apple.HIToolbox.plist')
else:
    print 'not a JP keyboard, will be extended/made applicable for UK/DE/FR layouts'
    pass