sway_switch_windows.py

sway_switch_windows.py

#!/usr/bin/python3
import sys
import json
import subprocess
import re


def get_named_windows(tree):
    ret = []
    if tree["name"] and tree["border"] != "none":
        s = f"{tree['id']}: {tree['name']}"
        if "window_properties" in tree:
            # X11/spotify has no nice ID
            s += f" - {tree['window_properties']['instance']}"
        ret.append(s)

    for node in tree["nodes"]:
        ret.extend(get_named_windows(node))
    return ret


if __name__ == "__main__":
    tree = subprocess.run(["swaymsg", "-t", "get_tree"], capture_output=True)
    tree = json.loads(tree.stdout)
    windows = get_named_windows(tree)

    if len(sys.argv) > 1:
        # Use arg
        for window in windows:
            if sys.argv[1] in window and sys.argv[0] not in window:
                focus = window
                break
        if not focus:
            sys.exit(1)
    else:
        # No arguments, display fuzzel
        focus = subprocess.run(
            ["fuzzel", "-d"],
            capture_output=True,
            input="\n".join(windows).encode("utf-8"),
        )
        focus = focus.stdout.decode("utf-8")

    wid = int(re.match(r"(^\d+):", focus).group(1))
    cmd = ["swaymsg", f'[con_id="{wid}"]', "focus"]
    subprocess.run(cmd)