Send notification in XFCE4 when current workspace was changed

workspace-ch-notify.py

#!/bin/env python3
from Xlib import X, display
import subprocess

# Open the display
d = display.Display()

# Get the root window
root = d.screen().root

# Select for SubstructureNotifyMask and PropertyChangeMask events
root.change_attributes(event_mask=X.SubstructureNotifyMask | X.PropertyChangeMask)

# Flush the display
d.flush()

# Id for notification
notify_id = "0"

# Get the names of all workspaces
workspaces = subprocess.check_output(['wmctrl', '-d']).decode().splitlines()

# Map the workspace numbers to their names
workspace_names = {i: name.split()[9] for i, name in enumerate(workspaces)}
# Get the initial workspace number
prev_workspace = root.get_full_property(d.intern_atom('_NET_CURRENT_DESKTOP'), X.AnyPropertyType).value[0]

# Enter the event loop
while True:
    event = d.next_event()

    if event.type == X.PropertyNotify and event.atom == d.intern_atom('_NET_CURRENT_DESKTOP'):
        # Handle workspace change event
        # Get the current workspace number
        curr_workspace = root.get_full_property(d.intern_atom('_NET_CURRENT_DESKTOP'), X.AnyPropertyType).value[0]

        # Check if the workspace has changed
        if curr_workspace != prev_workspace:
            # Handle the workspace change event
            workspace_name = workspace_names.get(curr_workspace, f"Workspace {curr_workspace}")
            notify_id = subprocess.check_output(['notify-send', "-i", "workspace-switcher-right-bottom", "-t", "3000", "-p", "-r", f"{notify_id}", "Workspace", f"{curr_workspace} - {workspace_name}"]).decode().splitlines()[0]

            # Update the previous workspace number
            prev_workspace = curr_workspace