如何在进入特定工作空间时生成/触发命令

此问答与全屏应用中的关闭SUPER键有关。 我曾要求使解决方案适用于特定的工作空间。

请参阅下面的解决方案

Answer 1

正如另一种选择，使用另一种方法来指示当前视口。 我在这里使用了许多脚本中的类似function。

import subprocess import os import time def get_res(): # get resolution xr = subprocess.check_output(["xrandr"]).decode("utf-8").split() pos = xr.index("current") return [int(xr[pos+1]), int(xr[pos+3].replace(",", "") )] def get_dt(): # get the current viewport vp_data = subprocess.check_output(["wmctrl", "-d"]).decode("utf-8").split() dt = [int(n) for n in vp_data[3].split("x")] cols = int(dt[0]/res[0]) curr_vpdata = [int(n) for n in vp_data[5].split(",")] curr_col = int(curr_vpdata[0]/res[0])+1; curr_row = int(curr_vpdata[1]/res[1]) return curr_col+curr_row*cols res = get_res() curr_dt1 = None while True: time.sleep(0.5) curr_dt2 = get_dt() # if we change viewport, do something: if curr_dt2 != curr_dt1: print(curr_dt2) # if we enter viewport3, do something if curr_dt2 == 3: subprocess.Popen(["gedit"]) curr_dt1 = curr_dt2 

该脚本检测视口中的更改以及输入特定视口。

• 如果应对视口中的更改执行操作，请将print命令替换为：

   if curr_dt2 != curr_dt1: print(curr_dt2) 

  …通过另一个命令（ subprocess.popen() ）

• 如果操作应放在enterin ga 特定视口上，请替换以下命令：

    if curr_dt2 == 3: subprocess.Popen(["gedit"]) 

  ……另一个人 如果在离开工作区时应该终止该进程，请添加一个部分：

    if all([curr_dt1 == 3 curr_dt2 != 3]): subprocess.Popen([""]) 

Answer 2

介绍

此解决方案的基本工作流程是使用包装器脚本在进入工作空间时启动用户命令，并在用户输入不在列表中的工作空间时向其发送sigterm。 这最适用于可用作独立应用程序的命令，可以安全地终止而不会丢失信息

用法

如-h选项所示

 usage: workspace_command_limiter.py [-h] -w WORKSPACES -c COMMAND Runs user-defined command __upon__ entering user-defined set of workspaces. For instance ./workspace_command_limiter.py -w 1,2,3 -c "python /home/user/some_script.py" This is intended to serve only as launcher for a command when user switches to their desired workspace, so consider carefully which command you want to use. NOTE: This script does run everything from shell, so you are here implicitly trusted not to use any command that may break your system. I'm not responsible for your stupidity :) optional arguments: -h, --help show this help message and exit -w WORKSPACES, --workspaces WORKSPACES coma-separated list(without spaces) of workspaces -c COMMAND, --command COMMAND quoted command to be spawned,when switch to workspace occurs 

在disable_super_key.py脚本的上下文中，这应该像这样运行

 ./workspace_command_limiter.py -w 1,2 -c "python ./disable_super_key.py" 

请注意，在此示例中，。 ./表示两个脚本都在同一目录中。

脚本来源

也可以在github上找到

 #!/usr/bin/env python3 # -*- coding: utf-8 -*- """ Author: Serg Kolo , contact: [e-mail] Date: August 24th, 2016 Purpose: Runs user-requested command only on specific workspaces Tested on: Ubuntu 16.04 LTS , Unity desktop The MIT License (MIT) Copyright © 2016 Sergiy Kolodyazhnyy <[e-mail]> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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 """ # Just in case the user runs # the script with python 2, import # print function from __future__ import print_function import gi gi.require_version('Gdk', '3.0') from gi.repository import Gio,Gdk from time import sleep import subprocess import argparse import signal import os import sys """Set debug=True to see errors and verbose output""" debug=False def gsettings_get(schema,path,key): """Get 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 run_cmd(cmdlist): """ Reusable function for running shell commands""" try: stdout = subprocess.check_output(cmdlist) except subprocess.CalledProcessError: if debug: print(">>> subprocess:",cmdlist) sys.exit(1) else: if stdout: return stdout def enumerate_viewports(): """ generates enumerated dictionary of viewports and their indexes, counting left to right """ schema="org.compiz.core" path="/org/compiz/profiles/unity/plugins/core/" keys=['hsize','vsize'] screen = Gdk.Screen.get_default() screen_size=[ screen.get_width(),screen.get_height()] grid=[ int(str(gsettings_get(schema,path,key))) for key in keys] x_vals=[ screen_size[0]*x for x in range(0,grid[0]) ] y_vals=[screen_size[1]*x for x in range(0,grid[1]) ] viewports=[(x,y) for y in y_vals for x in x_vals ] return {vp:ix for ix,vp in enumerate(viewports,1)} def get_current_viewport(): """returns tuple representing current viewport, in format (width,height)""" vp_string = run_cmd(['xprop', '-root', '-notype', '_NET_DESKTOP_VIEWPORT']) vp_list=vp_string.decode().strip().split('=')[1].split(',') return tuple( int(i) for i in vp_list ) def parse_args(): intro=""" Runs user-defined command __upon__ entering user-defined set of workspaces. For instance ./workspace_command_limiter.py -w 1,2,3 -c "python /home/user/some_script.py" This is intended to serve only as launcher for a command when user switches to their desired workspace, so consider carefully which command you want to use. NOTE: This script does run everything from shell, so you are here implicitly trusted not to use any command that may break your system. I'm not responsible for your stupidity :) """ parser = argparse.ArgumentParser(description=intro) parser.add_argument( "-w","--workspaces", action='store', type=str, help="coma-separated list(without spaces) of workspaces", required=True ) parser.add_argument( "-c","--command", action='store', type=str, help="quoted command to be spawned,when switch to workspace occurs", required=True ) return parser.parse_args() def main(): """ Defines entry point of the program """ args = parse_args() workspaces = [ int(wp) for wp in args.workspaces.split(',') ] if debug: print('User requested workspaces:',workspaces) pid = None proc = None while True: sleep(0.25) viewports_dict=enumerate_viewports() current_viewport = get_current_viewport() current_vp_number = viewports_dict[current_viewport] try: if current_vp_number in workspaces: if not pid: proc = subprocess.Popen("exec " + args.command,shell=True) pid = proc.pid if debug: print('PID:',pid,'Spawned:',args.command) else: if pid: if debug: print('killing pid:',pid) proc.terminate() proc = None pid = None except: if debug: print("Unexpected error:", sys.exc_info()[0]) if proc: proc.terminate() if __name__ == '__main__': main()