fix batterfly

asd.swift

import QuartzCore


let BLACK_LISTED: [Int64] = [8, 36]
var TIMEOUT = 100

struct State {
    var lastTimestamp: CGEventTimestamp? = nil
    var lastEvType: CGEventType? = nil
}

var state = State()


func callback(proxy: CGEventTapProxy, evType: CGEventType, ev: CGEvent, ref: UnsafeMutableRawPointer?) -> Unmanaged<CGEvent>? {
    
    let keycode = ev.getIntegerValueField(.keyboardEventKeycode)
    
    let origEv = Unmanaged.passUnretained(ev)
    
    if !BLACK_LISTED.contains(keycode) {
        return origEv
    }
    
    guard let lastEvT = state.lastEvType else {
        state.lastEvType = evType
        return origEv
    }
    state.lastEvType = evType

    guard lastEvT == .keyUp && evType == .keyDown else {
        return origEv
    }
    
    guard let lastT = state.lastTimestamp else {
        state.lastTimestamp = ev.timestamp
        return origEv
    }
    state.lastTimestamp = ev.timestamp
    
    
    
    let diff = (ev.timestamp - lastT)
    if (diff < TIMEOUT * 1_000_000) {
        print(diff, "blocked")

        return nil
    }
    
    return origEv
}

let EVENTS = CGEventMask(1<<CGEventType.keyDown.rawValue | 1<<CGEventType.keyUp.rawValue)


let tap = CGEvent.tapCreate(tap: .cgSessionEventTap, place: .tailAppendEventTap, options: .defaultTap, eventsOfInterest: EVENTS, callback: callback, userInfo: nil
)!

let source = CFMachPortCreateRunLoopSource(nil, tap, 0)!


CFRunLoopAddSource(CFRunLoopGetCurrent()!, source, CFRunLoopMode.commonModes)
CFRunLoopRun()