如何让NSTextField在可变行高表中换行

import Cocoa

class ViewController: NSViewController, NSTextFieldDelegate {
    
    @IBOutlet weak var textField: NSTextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 启用自动换行
        textField.lineBreakMode = .byWordWrapping
        textField.usesSingleLineMode = false
        
        // 设置代理
        textField.delegate = self
    }
    
    // NSTextFieldDelegate 方法
    func textDidChange(_ notification: Notification) {
        adjustTextFieldHeight()
    }
    
    func adjustTextFieldHeight() {
        let fixedWidth = textField.frame.size.width
        let newSize = textField.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
        textField.frame.size = CGSize(width: max(newSize.width, fixedWidth), height: newSize.height)
    }
}