Package swayipc can be used to control sway, swayfx and possibly i3wm window managers via a unix domain socket.

swaywm's interprocess communication (or ipc) is the interface sway, swayfx and i3wm use to receive commands from client applications such as sway-msg. It also features a publish/subscribe mechanism for notifying interested parties of window manager events.

swayipc is a go module for controlling the window manager. This project is intended to be useful for general scripting, and for applications that interact with the window manager like status line generators, notification daemons, and window pagers. It is primarily designed to work with sway and swayfx, but may also work with i3wm, although I haven't tested it on i3wm.

The module uses the i3-IPC proctocol as outlined in sway-ipc(7).

For details on how to use the library, see the reference documentation.

In this example we retrieve the current focused window:

package main

import (
        "fmt"
        "log"

        "github.com/tlinden/swayipc"
)

func main() {
        ipc := swayipc.NewSwayIPC()

        err := ipc.Connect()
        if err != nil {
                log.Fatal(err)
        }
        defer ipc.Close()

        tree, err := ipc.GetTree()
        if err != nil {
                log.Fatal(err)
        }

        focused := tree.FindFocused()

        if focused != nil {
                fmt.Printf("focused node: %s\n  id: %d\n  Geometry: %dx%d\n",
                        focused.Name, focused.Id, focused.Geometry.Width,
                        focused.Geometry.Height)
        }
}

Also take a look into the _examples folder for more examples.

For a more comprehensive and practical example look at the descratch program which you can use to selectively retrieve a window from the scratchpad.

You may also take a look at the tool swaycycle which is using this module.

Execute this to add the module to your project:

go get github.com/tlinden/swayipc

A couple of ideas have been taken from the i3ipc python module, although this one is not just a port of it and has been written from scratch.

Although I'm happy to hear from swayipc users in private email, that's the best way for me to forget to do something.

In order to report a bug, unexpected behavior, feature requests or to submit a patch, please open an issue on github: https://github.com/TLINDEN/swayipc/issues.

This software is licensed under the GNU GENERAL PUBLIC LICENSE version 3.

T.v.Dein

https://github.com/TLINDEN/swayipc

Licensed under the GNU GENERAL PUBLIC LICENSE version 3.

T.v.Dein