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// SPDX-License-Identifier: MIT
// Copyright © 2018-2020 WireGuard LLC. All Rights Reserved.
import UIKit
class EditableTextCell: UITableViewCell {
var message: String {
get { return valueTextField.text ?? "" }
set(value) { valueTextField.text = value }
}
var placeholder: String? {
get { return valueTextField.placeholder }
set(value) { valueTextField.placeholder = value }
}
let valueTextField: UITextField = {
let valueTextField = UITextField()
valueTextField.textAlignment = .left
valueTextField.isEnabled = true
valueTextField.font = UIFont.preferredFont(forTextStyle: .body)
valueTextField.adjustsFontForContentSizeCategory = true
valueTextField.autocapitalizationType = .none
valueTextField.autocorrectionType = .no
valueTextField.spellCheckingType = .no
return valueTextField
}()
var onValueBeingEdited: ((String) -> Void)?
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
valueTextField.delegate = self
contentView.addSubview(valueTextField)
valueTextField.translatesAutoresizingMaskIntoConstraints = false
// Reduce the bottom margin by 0.5pt to maintain the default cell height (44pt)
let bottomAnchorConstraint = contentView.layoutMarginsGuide.bottomAnchor.constraint(equalTo: valueTextField.bottomAnchor, constant: -0.5)
bottomAnchorConstraint.priority = .defaultLow
NSLayoutConstraint.activate([
valueTextField.leadingAnchor.constraint(equalTo: contentView.layoutMarginsGuide.leadingAnchor),
contentView.layoutMarginsGuide.trailingAnchor.constraint(equalTo: valueTextField.trailingAnchor),
contentView.layoutMarginsGuide.topAnchor.constraint(equalTo: valueTextField.topAnchor),
bottomAnchorConstraint
])
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func beginEditing() {
valueTextField.becomeFirstResponder()
}
override func prepareForReuse() {
super.prepareForReuse()
message = ""
placeholder = nil
}
}
extension EditableTextCell: UITextFieldDelegate {
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if let onValueBeingEdited = onValueBeingEdited {
let modifiedText = ((textField.text ?? "") as NSString).replacingCharacters(in: range, with: string)
onValueBeingEdited(modifiedText)
}
return true
}
}
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