mirror of
https://gitlab.opencode.de/bwi/bundesmessenger/clients/bundesmessenger-ios.git
synced 2026-04-23 10:02:46 +02:00
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//
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// Copyright 2021 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import SwiftUI
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struct UIKitTextInputConfiguration {
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var keyboardType: UIKeyboardType = .default
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var returnKeyType: UIReturnKeyType = .default
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var isSecureTextEntry: Bool = false
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var autocapitalizationType: UITextAutocapitalizationType = .sentences
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var autocorrectionType: UITextAutocorrectionType = .default
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}
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@available(iOS 14.0, *)
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struct ThemableTextField: UIViewRepresentable {
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@Environment(\.theme) private var theme: ThemeSwiftUI
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@State var placeholder: String?
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@Binding var text: String
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@State var configuration: UIKitTextInputConfiguration = UIKitTextInputConfiguration()
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var onEditingChanged: ((_ edit: Bool) -> Void)?
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var onCommit: (() -> Void)?
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private let textField: UITextField = UITextField()
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private let internalParams = InternalParams()
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func makeUIView(context: Context) -> UITextField {
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textField.delegate = context.coordinator
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textField.setContentHuggingPriority(.defaultHigh, for: .vertical)
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textField.setContentHuggingPriority(.defaultLow, for: .horizontal)
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textField.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
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textField.text = text
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textField.addTarget(context.coordinator, action: #selector(Coordinator.textFieldEditingChanged(sender:)), for: .editingChanged)
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ResponderManager.register(view: textField)
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if internalParams.isFirstResponder {
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textField.becomeFirstResponder()
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}
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return textField
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}
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func updateUIView(_ uiView: UITextField, context: Context) {
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uiView.backgroundColor = .clear
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uiView.font = UIFont.preferredFont(forTextStyle: .callout)
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uiView.textColor = UIColor(theme.colors.primaryContent)
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uiView.tintColor = UIColor(theme.colors.accent)
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if uiView.text != self.text {
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uiView.text = self.text
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}
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uiView.placeholder = placeholder
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uiView.keyboardType = configuration.keyboardType
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uiView.returnKeyType = configuration.returnKeyType
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uiView.isSecureTextEntry = configuration.isSecureTextEntry
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uiView.autocapitalizationType = configuration.autocapitalizationType
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uiView.autocorrectionType = configuration.autocorrectionType
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}
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static func dismantleUIView(_ uiView: UITextField, coordinator: Coordinator) {
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ResponderManager.unregister(view: uiView)
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}
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// MARK: - Private
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private func replaceText(with newText: String) {
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self.text = newText
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}
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// MARK: - Coordinator
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func makeCoordinator() -> Coordinator {
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return Coordinator(self)
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}
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class Coordinator: NSObject, UITextFieldDelegate {
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var parent: ThemableTextField
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init(_ parent: ThemableTextField) {
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self.parent = parent
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}
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func textFieldDidBeginEditing(_ textField: UITextField) {
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parent.onEditingChanged?(true)
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}
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func textFieldDidEndEditing(_ textField: UITextField) {
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parent.onEditingChanged?(false)
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}
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func textFieldShouldReturn(_ textField: UITextField) -> Bool {
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if !ResponderManager.makeActiveNextResponder(of: textField) {
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textField.resignFirstResponder()
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}
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parent.onCommit?()
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return true
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}
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@objc func textFieldEditingChanged(sender: UITextField) {
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parent.replaceText(with: sender.text ?? "")
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}
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}
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private class InternalParams {
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var isFirstResponder = false
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}
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}
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// MARK: - modifiers
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@available(iOS 14.0, *)
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extension ThemableTextField {
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func makeFirstResponder() -> ThemableTextField {
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internalParams.isFirstResponder = true
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return self
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}
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}
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