This GNOME Shell extension allows you to get the currently focused window using a D-Bus call. This allows you to get the focused window on Wayland, where there is no other way to do this.
You can install this extension from Gnome Extensions
https://extensions.gnome.org/extension/5592/focused-window-d-bus
gdbus call --session --dest org.gnome.Shell --object-path /org/gnome/shell/extensions/FocusedWindow --method org.gnome.shell.extensions.FocusedWindow.Get
Return format is similar to the Details
call of the
Window Calls extensions, because the
code is stolen taken from there, except there's no frame_bounds
variable
since it caused GNOME Shell to crash for some reason. There's also a title
variable.
Example:
{
"title": "Calculator",
"wm_class": "org.gnome.Calculator",
"wm_class_instance": "org.gnome.Calculator",
"pid": 56643,
"id": 2274918779,
"width": 421,
"height": 560,
"x": -22,
"y": -3,
"focus": true,
"in_current_workspace": true,
"moveable": true,
"resizeable": true,
"canclose": true,
"canmaximize": true,
"maximized": 0,
"canminimize": true,
"canshade": false,
"display": {},
"frame_type": 0,
"window_type": 0,
"layer": 2,
"monitor": 0,
"role": null,
"area": {},
"area_all": {},
"area_cust": {}
}