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#!/usr/bin/env python3
"""
Rename i3 and Sway workspaces based on the focused app's XDG categories.
Copyright (C) 2024 Matt Singleton
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 <https://www.gnu.org/licenses/>.
Adapted from this script:
https://github.com/nwg-piotr/swayinfo/blob/master/wsdnames.py
Which was in turn based on this example:
https://github.com/altdesktop/i3ipc-python/blob/master/README.rst
Dependencies: python-i3ipc>=2.0.1 (i3ipc-python), python-xlib
Pay attention to the fact that your workspaces need to be numbered, not named,
for the script to work.
Use:
bindsym $mod+1 workspace number 1
instead of:
bindsym $mod+1 workspace 1
in your ~/.config/sway/config or ~/.config/i3/config file.
"""
import argparse
import configparser
import logging
import os
import os.path
import traceback
from i3ipc import Connection, Event
def get_xdg_categories(app_id):
path = os.path.join("/usr/share/applications", f"{app_id}.desktop")
try:
config = configparser.ConfigParser()
config.read(path)
return config["Desktop Entry"]["Categories"].split(";")
except Exception:
return []
def glyph(ws_num, app_id=None):
"""
Return a single glyph based on the app_id, if given,
then a default based on the workspace number,
and finally an empty glyph.
"""
global CONFIG_MTIME
latest_mtime = os.stat(CONFIG_PATH).st_mtime
if CONFIG_MTIME < latest_mtime:
CONFIG_MTIME = latest_mtime
CONFIG.read(CONFIG_PATH)
if app_id is not None:
if app_id in CONFIG["app"]:
return CONFIG["app"][app_id]
categories = get_xdg_categories(app_id)
for c in categories:
if c in CONFIG["xdg_additional"]:
return CONFIG["xdg_additional"][c]
for c in categories:
if c in CONFIG["xdg_main"]:
return CONFIG["xdg_main"][c]
logger.debug(f"no xdg icon found for: {app_id}")
ws_num = str(ws_num)
if ws_num in CONFIG["desktop"]:
return CONFIG["desktop"][ws_num]
return CONFIG["fallback"]["icon"]
def get_ws_name(ws_num, app_id=None):
ws_glyph = glyph(ws_num, app_id)
return f"{ws_num}:{ws_glyph}"
def assign_generic_name(i3, e):
"""
Name the workspace after the focused window name
"""
try:
if e.change == 'rename':
return
if e.change in ['new', 'move']:
# if a change results in a window spawning in an unfocused
# state (i.e. on another workspace), we need to look
# it up by id
con = i3.get_tree().find_by_id(e.container.id)
else:
con = i3.get_tree().find_focused()
if con.type == 'workspace':
# empty workspace
ws_num = con.workspace().num
name = get_ws_name(ws_num)
i3.command(f'rename workspace to "{name}"')
else:
old_name = con.workspace().name
# assume windows without an app_id are xwayland
if con.app_id is None:
app_id = con.window_class or "xwayland"
else:
app_id = con.app_id
name = get_ws_name(con.workspace().num, app_id)
i3.command(f'rename workspace "{old_name}" to "{name}"')
except Exception as e:
logger.debug("".join(traceback.format_exception(e)))
parser = argparse.ArgumentParser()
parser.add_argument("--debug", action="store_true")
args = parser.parse_args()
log_format = "%(levelname)s %(name)s: %(message)s"
if args.debug is True:
logging.basicConfig(level=logging.DEBUG, format=log_format)
else:
logging.basicConfig(level=logging.INFO, format=log_format)
logger = logging.getLogger(__name__)
CONFIG_MTIME = 0
CONFIG_PATH = os.path.join(
os.environ.get(
"XDG_CONFIG_HOME",
os.path.join(os.environ["HOME"], ".config"),
),
"xdg-names.ini",
)
CONFIG = configparser.ConfigParser()
# Create the Connection object that can be used to send commands and
# subscribe to events.
i3 = Connection()
# Subscribe to events
i3.on(Event.WORKSPACE_FOCUS, assign_generic_name)
i3.on(Event.WINDOW_FOCUS, assign_generic_name)
i3.on(Event.WINDOW_TITLE, assign_generic_name)
i3.on(Event.WINDOW_CLOSE, assign_generic_name)
i3.on(Event.WINDOW_NEW, assign_generic_name)
i3.on(Event.WINDOW_MOVE, assign_generic_name)
i3.on(Event.BINDING, assign_generic_name)
i3.main()
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