Twyco
1cf7524a7b
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341 lines
16 KiB
Swift
341 lines
16 KiB
Swift
import UIKit
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import WebKit
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@_cdecl("install_ios_workspace")
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func installIOSWorkspace() {
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DispatchQueue.main.async {
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guard let root = UIApplication.shared.connectedScenes
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.compactMap({ $0 as? UIWindowScene }).flatMap(\.windows)
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.first(where: { $0.isKeyWindow })?.rootViewController
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?? UIApplication.shared.windows.first?.rootViewController else { return }
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guard !root.children.contains(where: { $0 is WorkspaceViewController }) else { return }
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let controller = WorkspaceViewController()
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root.view.subviews.forEach { $0.isHidden = true }
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root.addChild(controller)
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root.view.addSubview(controller.view)
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controller.view.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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controller.view.topAnchor.constraint(equalTo: root.view.topAnchor),
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controller.view.bottomAnchor.constraint(equalTo: root.view.bottomAnchor),
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controller.view.leadingAnchor.constraint(equalTo: root.view.leadingAnchor),
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controller.view.trailingAnchor.constraint(equalTo: root.view.trailingAnchor),
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])
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controller.didMove(toParent: root)
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}
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}
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final class WorkspaceViewController: UIViewController, WKNavigationDelegate, WKUIDelegate, UITextFieldDelegate {
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private let defaults: UserDefaults
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private let serverKey = "ios.activeServer"
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private(set) var server: WorkspaceServer?
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private(set) var workspace: WKWebView?
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private var connection = WorkspaceConnection()
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private var pendingNavigation: WKNavigation?
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private var timeout: DispatchWorkItem?
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private let loading = UIActivityIndicatorView(style: .large)
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private let launcher = UIScrollView()
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private let stack = UIStackView()
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private let address = UITextField()
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private let status = UILabel()
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private let connectButton = UIButton(type: .system)
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private let resumeButton = UIButton(type: .system)
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private let toolbar = UIToolbar()
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private var appearance: UISegmentedControl!
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init(defaults: UserDefaults = .standard) {
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self.defaults = defaults
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super.init(nibName: nil, bundle: nil)
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}
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required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
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private func text(_ key: String) -> String {
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NSLocalizedString(key, comment: "KanbanGit iOS workspace")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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view.backgroundColor = .systemBackground
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view.tintColor = UIColor(red: 0, green: 0.43, blue: 0.18, alpha: 1)
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loading.accessibilityIdentifier = "workspaceLoading"
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loading.accessibilityLabel = text("connecting")
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loading.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(loading)
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NSLayoutConstraint.activate([
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loading.centerXAnchor.constraint(equalTo: view.centerXAnchor),
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loading.centerYAnchor.constraint(equalTo: view.centerYAnchor),
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])
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configureLauncher()
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configureToolbar()
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if let data = defaults.data(forKey: serverKey) {
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if let saved = try? JSONDecoder().decode(WorkspaceServer.self, from: data),
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WorkspaceServer.normalize(saved.url.absoluteString) == saved.url {
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server = saved
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} else {
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status.text = text("storageError")
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}
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}
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address.text = server?.url.absoluteString ?? "https://kanbangit.de/"
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if let server { open(server.url) } else { showSettings() }
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}
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private func label(_ key: String, style: UIFont.TextStyle = .body) -> UILabel {
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let label = UILabel()
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label.text = text(key)
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label.font = .preferredFont(forTextStyle: style)
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label.adjustsFontForContentSizeCategory = true
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label.numberOfLines = 0
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return label
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}
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private func configureLauncher() {
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launcher.isHidden = true
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launcher.accessibilityIdentifier = "serverSettings"
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launcher.keyboardDismissMode = .interactive
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launcher.bounces = false
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view.addSubview(launcher)
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launcher.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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launcher.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
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launcher.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor),
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launcher.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
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launcher.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
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])
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stack.axis = .vertical
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stack.spacing = 18
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stack.translatesAutoresizingMaskIntoConstraints = false
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launcher.addSubview(stack)
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let width = stack.widthAnchor.constraint(equalTo: launcher.frameLayoutGuide.widthAnchor, constant: -40)
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width.priority = .defaultHigh
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NSLayoutConstraint.activate([
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stack.topAnchor.constraint(equalTo: launcher.contentLayoutGuide.topAnchor, constant: 32),
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stack.bottomAnchor.constraint(equalTo: launcher.contentLayoutGuide.bottomAnchor, constant: -32),
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stack.centerXAnchor.constraint(equalTo: launcher.frameLayoutGuide.centerXAnchor),
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stack.leadingAnchor.constraint(greaterThanOrEqualTo: launcher.contentLayoutGuide.leadingAnchor, constant: 20),
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stack.trailingAnchor.constraint(lessThanOrEqualTo: launcher.contentLayoutGuide.trailingAnchor, constant: -20),
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stack.widthAnchor.constraint(lessThanOrEqualToConstant: 480), width,
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])
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stack.addArrangedSubview(label("appName", style: .headline))
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stack.addArrangedSubview(label("title", style: .largeTitle))
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stack.addArrangedSubview(label("description"))
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stack.addArrangedSubview(label("serverLabel", style: .headline))
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address.borderStyle = .roundedRect
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address.keyboardType = .URL
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address.textContentType = .URL
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address.autocorrectionType = .no
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address.autocapitalizationType = .none
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address.clearButtonMode = .whileEditing
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address.returnKeyType = .go
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address.delegate = self
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address.accessibilityLabel = text("serverLabel")
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address.accessibilityIdentifier = "serverAddress"
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address.heightAnchor.constraint(greaterThanOrEqualToConstant: 48).isActive = true
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stack.addArrangedSubview(address)
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stack.addArrangedSubview(label("serverHelp", style: .footnote))
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connectButton.configuration = .filled()
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connectButton.setTitle(text("openWorkspace"), for: .normal)
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connectButton.accessibilityIdentifier = "openWorkspace"
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connectButton.addTarget(self, action: #selector(connect), for: .touchUpInside)
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stack.addArrangedSubview(connectButton)
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status.numberOfLines = 0
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status.accessibilityIdentifier = "connectionStatus"
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status.font = .preferredFont(forTextStyle: .body)
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status.adjustsFontForContentSizeCategory = true
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stack.addArrangedSubview(status)
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resumeButton.setTitle(text("resume"), for: .normal)
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resumeButton.accessibilityIdentifier = "resumeWorkspace"
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resumeButton.addTarget(self, action: #selector(showWorkspace), for: .touchUpInside)
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stack.addArrangedSubview(resumeButton)
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stack.addArrangedSubview(label("appearance", style: .headline))
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appearance = UISegmentedControl(items: [text("system"), text("light"), text("dark")])
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appearance.selectedSegmentIndex = min(2, max(0, defaults.integer(forKey: "ios.appearance")))
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appearance.accessibilityIdentifier = "appearance"
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appearance.addTarget(self, action: #selector(changeAppearance), for: .valueChanged)
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stack.addArrangedSubview(appearance)
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[connectButton, resumeButton, appearance].forEach {
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$0.heightAnchor.constraint(greaterThanOrEqualToConstant: 44).isActive = true
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}
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changeAppearance()
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}
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private func configureToolbar() {
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toolbar.isHidden = true
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toolbar.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(toolbar)
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let settings = UIBarButtonItem(title: text("serverSettings"), style: .plain, target: self, action: #selector(showSettings))
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settings.accessibilityIdentifier = "showServerSettings"
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toolbar.items = [UIBarButtonItem(systemItem: .flexibleSpace), settings]
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NSLayoutConstraint.activate([
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toolbar.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
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toolbar.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
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toolbar.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
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])
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}
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@objc private func changeAppearance() {
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defaults.set(appearance.selectedSegmentIndex, forKey: "ios.appearance")
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overrideUserInterfaceStyle = [.unspecified, .light, .dark][appearance.selectedSegmentIndex]
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}
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func textFieldShouldReturn(_ textField: UITextField) -> Bool { connect(); return true }
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@objc private func connect() {
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guard let url = WorkspaceServer.normalize(address.text ?? "") else {
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status.text = text("invalidServer")
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UIAccessibility.post(notification: .announcement, argument: status.text)
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return
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}
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if let server, server.url != url {
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let alert = UIAlertController(title: text("confirmSwitch"), message: text("switchWarning"), preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: text("cancel"), style: .cancel))
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alert.addAction(UIAlertAction(title: text("confirmSwitch"), style: .destructive) { [weak self] _ in self?.open(url) })
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present(alert, animated: true)
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} else { open(url) }
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}
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func open(_ url: URL) {
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if server?.url == url, connection.ready { showWorkspace(); return }
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let selected = WorkspaceServer.selecting(url, current: server)
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guard let data = try? JSONEncoder().encode(selected) else { status.text = text("storageError"); return }
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defaults.set(data, forKey: serverKey)
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timeout?.cancel()
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workspace?.stopLoading()
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workspace?.navigationDelegate = nil
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workspace?.removeFromSuperview()
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connection = WorkspaceConnection()
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server = selected
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let configuration = WKWebViewConfiguration()
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configuration.websiteDataStore = WKWebsiteDataStore(forIdentifier: selected.profile)
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let scriptURL = Bundle(for: WorkspaceViewController.self).url(forResource: "workspace-navigation", withExtension: "js")!
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let script = try! String(contentsOf: scriptURL, encoding: .utf8)
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configuration.userContentController.addUserScript(WKUserScript(source: script, injectionTime: .atDocumentStart, forMainFrameOnly: true))
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// Remote content receives no native message handlers or Tauri bridge.
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let webview = WKWebView(frame: .zero, configuration: configuration)
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webview.navigationDelegate = self
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webview.uiDelegate = self
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webview.allowsBackForwardNavigationGestures = true
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webview.scrollView.bounces = false
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webview.accessibilityIdentifier = "workspace"
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webview.translatesAutoresizingMaskIntoConstraints = false
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webview.isHidden = true
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view.insertSubview(webview, belowSubview: launcher)
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NSLayoutConstraint.activate([
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webview.topAnchor.constraint(equalTo: toolbar.bottomAnchor),
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webview.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor),
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webview.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
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webview.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
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])
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workspace = webview
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view.endEditing(true)
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address.text = url.absoluteString
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launcher.isHidden = true
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toolbar.isHidden = true
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loading.startAnimating()
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beginNavigation()
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pendingNavigation = webview.load(URLRequest(url: selected.dashboardURL))
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}
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private func beginNavigation() {
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timeout?.cancel()
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let revision = connection.begin()
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status.text = text("connecting")
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connectButton.isEnabled = false
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resumeButton.isHidden = !connection.ready
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let work = DispatchWorkItem { [weak self] in self?.fail(revision) }
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timeout = work
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DispatchQueue.main.asyncAfter(deadline: .now() + 15, execute: work)
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}
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private func fail(_ revision: Int) {
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guard connection.fail(revision) else { return }
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timeout?.cancel()
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status.text = text("connectionError")
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connectButton.isEnabled = true
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connectButton.setTitle(text("retry"), for: .normal)
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showSettings()
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}
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@objc private func showSettings() {
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loading.stopAnimating()
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view.endEditing(true)
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launcher.isHidden = false
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toolbar.isHidden = true
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workspace?.isHidden = true
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resumeButton.isHidden = !connection.ready
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}
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@objc private func showWorkspace() {
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guard connection.ready else { return }
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loading.stopAnimating()
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view.endEditing(true)
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launcher.isHidden = true
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toolbar.isHidden = false
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workspace?.isHidden = false
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}
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func webView(_ webView: WKWebView, decidePolicyFor action: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
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guard webView === workspace, let url = action.request.url else { decisionHandler(.cancel); return }
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guard server?.allows(url) == true else {
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decisionHandler(.cancel)
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if action.navigationType == .linkActivated,
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action.sourceFrame.isMainFrame,
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action.targetFrame == nil || action.targetFrame?.isMainFrame == true,
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WorkspaceServer.allowsExternal(url) {
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UIApplication.shared.open(url)
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}
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return
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}
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if action.targetFrame == nil {
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decisionHandler(.cancel)
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webView.load(action.request)
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} else { decisionHandler(.allow) }
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}
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func webView(_ webView: WKWebView, decidePolicyFor response: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
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guard webView === workspace, let url = response.response.url,
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server?.allows(url) == true else { decisionHandler(.cancel); return }
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decisionHandler(.allow)
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}
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func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
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guard webView === workspace else { return }
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pendingNavigation = navigation
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beginNavigation()
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}
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func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
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guard webView === workspace, navigation === pendingNavigation, connection.connecting,
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let url = webView.url, server?.allows(url) == true else { return }
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let firstLoad = !connection.ready
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timeout?.cancel()
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connection.finish()
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connectButton.isEnabled = true
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connectButton.setTitle(text("openWorkspace"), for: .normal)
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status.text = text("connected")
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resumeButton.isHidden = false
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if firstLoad { showWorkspace() }
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}
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func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
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navigationFailed(webView, navigation, error)
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}
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func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
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navigationFailed(webView, navigation, error)
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}
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private func navigationFailed(_ webView: WKWebView, _ navigation: WKNavigation?, _ error: Error) {
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guard webView === workspace, navigation === pendingNavigation,
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(error as NSError).code != NSURLErrorCancelled else { return }
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fail(connection.revision)
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}
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func webViewWebContentProcessDidTerminate(_ webView: WKWebView) {
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guard webView === workspace else { return }
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connection = WorkspaceConnection()
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status.text = text("processTerminated")
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connectButton.isEnabled = true
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showSettings()
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}
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}
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