Disattiva il tasto SUPER durante le app a schermo intero

Esiste un modo per disattivare il tasto SUPER durante le sessioni di gioco o le app a schermo intero in generale?

introduzione

Lo script seguente disabilita la Superchiave se una finestra X11 è in modalità a schermo intero. È pensato per essere aggiunto come applicazione di avvio, ma può anche essere eseguito in modalità autonoma.

uso

Per eseguire manualmente lo script è sufficiente:

python disable_super_key.py

Per fare in modo che lo script si avvii automaticamente all'accesso, consultare Come si avviano automaticamente le applicazioni all'accesso?

Ottenere il codice sorgente dello script

Si potrebbe copiare l'origine dello script da questa risposta o ottenerla tramite la clonazione del mio repository GitHub .

Istruzioni per coloro che hanno git:

1. cd /opt
2. sudo git clone https://github.com/SergKolo/sergrep.git
3. chmod -R +x sergrep

Lo script si troverà in /opt/sergrep/disable_super_key.py

Codice sorgente dello script

#!/usr/bin/env python
#
###########################################################
# Author: Serg Kolo , contact: 1047481448@qq.com 
# Date: August 1st , 2016
# Purpose: Disable Super key that calls Unity Dash, when any 
#          X11 window is in fullscreen state
# 
# Written for: https://askubuntu.com/q/805807/295286
# Tested on: Ubuntu 16.04 LTS 
###########################################################
# Copyright: Serg Kolo , 2016
#    
#     Permission to use, copy, modify, and distribute this software is hereby granted
#     without fee, provided that  the copyright notice above and this permission statement
#     appear in all copies.
#
#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
#     THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
#     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
#     DEALINGS IN THE SOFTWARE.
from __future__ import print_function
import gi
gi.require_version('Gdk', '3.0')
from gi.repository import  Gdk,Gio
import subprocess
import signal
import time
import sys

debug = False

def gsettings_get(schema,path,key):
    """ fetches value of gsettings schema"""
    if path is None:
        gsettings = Gio.Settings.new(schema)
    else:
        gsettings = Gio.Settings.new_with_path(schema,path)
    return gsettings.get_value(key)

def gsettings_set(schema,path,key,value):
    """ sets value of gsettings schema """
    if path is None:
        gsettings = Gio.Settings.new(schema)
    else:
        gsettings = Gio.Settings.new_with_path(schema,path)
    return gsettings.set_string(key,value)


def gsettings_reset(schema,path,key):
    """ resets schema:key value to default"""
    if path is None:
        gsettings = Gio.Settings.new(schema)
    else:
        gsettings = Gio.Settings.new_with_path(schema,path)
    return gsettings.reset(key)

def run_cmd(cmdlist):
    """ reusable function for running shell commands"""
    try:
        stdout = subprocess.check_output(cmdlist)
    except subprocess.CalledProcessError:
        pass
    else:
        if stdout:
            return stdout


def main():
    """ defines entry point of the program """
    screen = Gdk.Screen.get_default()
    while True:

        key_state = str(gsettings_get('org.compiz.unityshell', 
                                  '/org/compiz/profiles/unity/plugins/unityshell/', 
                                  'show-launcher'))
        active_xid = str(screen.get_active_window().get_xid())
        wm_state =  run_cmd( ['xprop', '-root', '-notype','-id',active_xid, '_NET_WM_STATE'])  

        if debug : print(key_state,wm_state)

        if 'FULLSCREEN' in wm_state:
            if "Super" in  key_state:    
                gsettings_set('org.compiz.unityshell', 
                              '/org/compiz/profiles/unity/plugins/unityshell/',
                              'show-launcher', 
                              'Disabled')

        else:
            if "Disabled" in key_state :
               gsettings_reset( 'org.compiz.unityshell', 
                                '/org/compiz/profiles/unity/plugins/unityshell/',
                                'show-launcher')


        time.sleep(0.25)


def sigterm_handler(*args):
    """ ensures that Super key has been reset upon exit"""
    gsettings_reset( 'org.compiz.unityshell', 
                     '/org/compiz/profiles/unity/plugins/unityshell/',
                     'show-launcher')

    if debug: print('CAUGHT SIGTERM')
    sys.exit(0)


if __name__ == "__main__":
    signal.signal(signal.SIGTERM,sigterm_handler)
    main()

Debug

Nel caso sia necessario il debug, cambiare la riga 32 da debug = Falsea debug = Trueed eseguire lo script dalla riga di comando