104 lines
3.0 KiB
Swift
104 lines
3.0 KiB
Swift
//
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// Swiftfin is subject to the terms of the Mozilla Public
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// License, v2.0. If a copy of the MPL was not distributed with this
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// file, you can obtain one at https://mozilla.org/MPL/2.0/.
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//
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// Copyright (c) 2024 Jellyfin & Jellyfin Contributors
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//
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import SwiftUI
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struct UnmaskSecureField: UIViewRepresentable {
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@Binding
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private var text: String
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let title: String
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init(_ title: String, text: Binding<String>) {
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self.title = title
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self._text = text
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}
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func makeUIView(context: Context) -> some UIView {
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let textField = UITextField()
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textField.isSecureTextEntry = true
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textField.keyboardType = .asciiCapable
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textField.placeholder = title
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textField.text = text
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textField.addTarget(context.coordinator, action: #selector(Coordinator.textDidChange), for: .editingChanged)
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let button = UIButton(type: .custom)
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button.translatesAutoresizingMaskIntoConstraints = false
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button.addTarget(context.coordinator, action: #selector(Coordinator.buttonPressed), for: .touchUpInside)
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button.setImage(UIImage(systemName: "eye.fill"), for: .normal)
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NSLayoutConstraint.activate([
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button.heightAnchor.constraint(equalToConstant: 50),
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button.widthAnchor.constraint(equalToConstant: 50),
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])
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textField.rightView = button
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textField.rightViewMode = .always
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context.coordinator.button = button
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context.coordinator.textField = textField
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context.coordinator.textDidChange()
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context.coordinator.textBinding = _text
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return textField
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}
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func updateUIView(_ uiView: UIViewType, context: Context) {}
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func makeCoordinator() -> Coordinator {
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Coordinator()
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}
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class Coordinator {
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weak var button: UIButton?
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weak var textField: UITextField?
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var textBinding: Binding<String> = .constant("")
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@objc
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func buttonPressed() {
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guard let textField else { return }
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textField.toggleSecureEntry()
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let eye = textField.isSecureTextEntry ? "eye.fill" : "eye.slash"
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button?.setImage(UIImage(systemName: eye), for: .normal)
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}
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@objc
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func textDidChange() {
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guard let textField, let text = textField.text else { return }
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button?.isEnabled = !text.isEmpty
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textBinding.wrappedValue = text
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}
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}
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}
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private extension UITextField {
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// https://stackoverflow.com/a/48115361
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func toggleSecureEntry() {
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isSecureTextEntry.toggle()
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if let existingText = text, isSecureTextEntry {
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deleteBackward()
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if let textRange = textRange(from: beginningOfDocument, to: endOfDocument) {
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replace(textRange, withText: existingText)
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}
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}
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if let existingSelectedTextRange = selectedTextRange {
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selectedTextRange = nil
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selectedTextRange = existingSelectedTextRange
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}
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}
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}
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