150 lines
4.2 KiB
Swift
150 lines
4.2 KiB
Swift
//
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// Copyright 2021-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only
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// Please see LICENSE in the repository root for full details.
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//
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import SwiftUI
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struct ThemableTextEditor: UIViewRepresentable {
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// MARK: Properties
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@Binding var text: String
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@State var configuration = UIKitTextInputConfiguration()
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var onEditingChanged: ((_ edit: Bool) -> Void)?
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// MARK: Private
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@Environment(\.theme) private var theme: ThemeSwiftUI
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private let textView = UITextView()
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private let internalParams = InternalParams()
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// MARK: Setup
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init(text: Binding<String>,
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configuration: UIKitTextInputConfiguration = UIKitTextInputConfiguration(),
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onEditingChanged: ((_ edit: Bool) -> Void)? = nil) {
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_text = text
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_configuration = State(initialValue: configuration)
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self.onEditingChanged = onEditingChanged
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ResponderManager.register(view: textView)
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}
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// MARK: UIViewRepresentable
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func makeUIView(context: Context) -> UITextView {
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textView.delegate = context.coordinator
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textView.text = text
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if internalParams.isFirstResponder {
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textView.becomeFirstResponder()
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}
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return textView
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}
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func updateUIView(_ uiView: UITextView, 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 != text {
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uiView.text = text
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}
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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: UITextView, 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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text = newText
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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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// MARK: - Coordinator
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func makeCoordinator() -> Coordinator {
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Coordinator(self)
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}
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class Coordinator: NSObject, UITextViewDelegate {
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var parent: ThemableTextEditor
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init(_ parent: ThemableTextEditor) {
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self.parent = parent
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}
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func textViewDidBeginEditing(_ textView: UITextView) {
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parent.onEditingChanged?(true)
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}
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func textViewDidEndEditing(_ textView: UITextView) {
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parent.onEditingChanged?(false)
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}
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func textViewDidChange(_ textView: UITextView) {
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guard let text = textView.text else {
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return
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}
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parent.replaceText(with: text)
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}
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@objc func wakeUpNextResponder() {
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if !ResponderManager.makeActiveNextResponder(of: parent.textView) {
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parent.textView.resignFirstResponder()
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}
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}
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}
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}
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// MARK: - modifiers
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extension ThemableTextEditor {
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func keyboardType(_ type: UIKeyboardType) -> ThemableTextEditor {
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textView.keyboardType = type
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return self
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}
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func isSecureTextEntry(_ isSecure: Bool) -> ThemableTextEditor {
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textView.isSecureTextEntry = isSecure
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return self
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}
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func returnKeyType(_ type: UIReturnKeyType) -> ThemableTextEditor {
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textView.returnKeyType = type
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return self
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}
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func autocapitalizationType(_ type: UITextAutocapitalizationType) -> ThemableTextEditor {
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textView.autocapitalizationType = type
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return self
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}
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func autocorrectionType(_ type: UITextAutocorrectionType) -> ThemableTextEditor {
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textView.autocorrectionType = type
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return self
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}
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func makeFirstResponder() -> ThemableTextEditor {
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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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