// // DeleteBackwardResponseTextField.swift // Mastodon // // Created by MainasuK Cirno on 2021-3-23. // import UIKit protocol DeleteBackwardResponseTextFieldDelegate: class { func deleteBackwardResponseTextField(_ textField: DeleteBackwardResponseTextField, textBeforeDelete: String?) } final class DeleteBackwardResponseTextField: UITextField { weak var deleteBackwardDelegate: DeleteBackwardResponseTextFieldDelegate? override func deleteBackward() { let text = self.text super.deleteBackward() deleteBackwardDelegate?.deleteBackwardResponseTextField(self, textBeforeDelete: text) } }