The Fat Controller

TFC is a library for simulating mouse and keyboard events. Mouse movement, mouse clicking, scrolling and key presses can all be simulated. The library supports macOS, Windows and Linux. This library was built for use by TFC-server, a server that allows for remote control of a PC via a mobile app.

Linux

There are two implementations for Linux, one that uses X11, and one that depends only on the Linux kernel. The implementation that doesn't use X11 is missing some features. It is intended for Wayland but Wayland is a bit more locked down compared to X11, hence the missing features.

Before using the X11 implementation, the X11 and XTest development libraries need to be installed. Using apt, the following snippet can be used.

sudo apt install libx11-dev libxtst-dev

The non-X11 implementation uses /dev/uinput. Before this can be used, permissions need to be granted. The following snippet can be used.

sudo bash -c 'echo -e "KERNEL==\"uinput\", MODE=\"0666\"" >> /etc/udev/rules.d/50-uinput.rules'

Usage

Add the following to your Cargo.toml:

[dependencies]
tfc = "0.3"

Example

use tfc::*;
use std::{thread, time::Duration, f64::consts::PI};

fn main() -> Result<(), Error> {
    let mut ctx = Context::new()?;
    let radius = 100.0;
    let center = ctx.mouse_location()?;
    let center = (center.0 as f64 - radius, center.1 as f64);
    let steps = 200;
    let revolutions = 3;
    let delay = Duration::from_millis(10);

    for step in 0..steps * revolutions {
        thread::sleep(delay);
        let angle = step as f64 * 2.0 * PI / steps as f64;
        let x = (center.0 + radius * angle.cos()).round() as i32;
        let y = (center.1 + radius * angle.sin()).round() as i32;
        ctx.mouse_move_abs(x, y)?;
    }

    Ok(())
}