UILabel subclass that supports Copying its contents to clipboard

UILabelCopyable.swift

import UIKit

class UILabelCopyable: UILabel {
    
    override func copy(_ sender: Any?) {
        UIPasteboard.general.string = text
    }
    
    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
        return action == #selector(copy(_:)) && text != nil
    }
    
    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        becomeFirstResponder()
        let menuController = UIMenuController.shared
        if !menuController.isMenuVisible {
            menuController.setTargetRect(menuTargetRect, in: self)
            menuController.setMenuVisible(true, animated: true)
        }
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        commonInit()
    }
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }
    
    func commonInit() {
        isUserInteractionEnabled = true
    }
    
    override var canBecomeFirstResponder: Bool { return true }
    
    var menuTargetRect: CGRect {
        let intrinsicRect = CGRect(origin: .zero, size: intrinsicContentSize)
        return bounds.intersection(intrinsicRect)
    }

}