151 lines
5.1 KiB
Swift
151 lines
5.1 KiB
Swift
//
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// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import SignalServiceKit
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protocol FindByUsernameDelegate: AnyObject {
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func findByUsername(address: SignalServiceAddress)
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var shouldShowQRCodeButton: Bool { get }
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func openQRCodeScanner()
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}
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public class FindByUsernameViewController: OWSTableViewController2 {
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weak var findByUsernameDelegate: FindByUsernameDelegate?
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private lazy var usernameTextField = OWSTextField(
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placeholder: OWSLocalizedString(
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"FIND_BY_USERNAME_PLACEHOLDER",
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comment: "A placeholder value for the text field for finding an account by their username"
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),
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returnKeyType: .done,
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autocorrectionType: .no,
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autocapitalizationType: .none,
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editingChanged: { [weak self] in
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self?.textFieldDidChange()
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},
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returnPressed: { [weak self] in
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self?.didTapNext()
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}
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)
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public override func viewDidLoad() {
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super.viewDidLoad()
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updateTableContents()
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title = OWSLocalizedString(
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"FIND_BY_USERNAME_TITLE",
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comment: "Title for the view for finding accounts by their username"
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)
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navigationItem.rightBarButtonItem = UIBarButtonItem(
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title: CommonStrings.nextButton,
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style: .done,
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target: self,
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action: #selector(didTapNext)
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)
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navigationItem.rightBarButtonItem?.isEnabled = false
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}
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public override func viewDidAppear(_ animated: Bool) {
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usernameTextField.becomeFirstResponder()
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}
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// MARK: Table contents
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private func updateTableContents() {
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let textField = self.usernameTextField
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let contents = OWSTableContents()
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defer {
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self.contents = contents
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}
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contents.add(OWSTableSection(
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title: nil,
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items: [
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.textFieldItem(textField),
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],
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footerTitle: OWSLocalizedString(
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"FIND_BY_USERNAME_FOOTER",
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comment: "A footer below the username text field describing what should be entered"
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)
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))
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guard findByUsernameDelegate?.shouldShowQRCodeButton ?? false else {
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return
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}
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let qrButtonSection = OWSTableSection(items: [
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OWSTableItem(customCellBlock: { [weak self] in
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let cell = OWSTableItem.newCell()
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let button = OWSRoundedButton {
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self?.findByUsernameDelegate?.openQRCodeScanner()
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}
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let font = UIFont.dynamicTypeSubheadline
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let title = NSAttributedString.composed(of: [
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NSAttributedString.with(image: Theme.iconImage(.qrCode), font: font),
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" ",
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OWSLocalizedString(
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"FIND_BY_USERNAME_SCAN_QR_CODE_BUTTON",
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comment: "A button below the username text field which opens a username QR code scanner"
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)
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]).styled(
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with: .font(font.medium()),
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.color(Theme.primaryTextColor)
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)
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button.setAttributedTitle(title, for: .normal)
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button.backgroundColor = Theme.tableCell2PresentedBackgroundColor
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button.dimsWhenHighlighted = true
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button.ows_contentEdgeInsets = .init(hMargin: 16, vMargin: 6)
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cell.addSubview(button)
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button.autoPinEdge(toSuperviewMargin: .top)
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button.autoPinEdge(toSuperviewMargin: .bottom)
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button.autoCenterInSuperviewMargins()
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button.autoPinEdge(toSuperviewMargin: .leading, relation: .greaterThanOrEqual)
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button.autoPinEdge(toSuperviewMargin: .trailing, relation: .greaterThanOrEqual)
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return cell
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}),
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])
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qrButtonSection.hasBackground = false
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contents.add(qrButtonSection)
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}
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// MARK: Actions
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@objc
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private func textFieldDidChange() {
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do {
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_ = try Usernames.HashedUsername(forUsername: usernameTextField.text ?? "")
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navigationItem.rightBarButtonItem?.isEnabled = true
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} catch {
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navigationItem.rightBarButtonItem?.isEnabled = false
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}
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}
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@objc
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private func didTapNext() {
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guard let username = usernameTextField.text else { return }
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usernameTextField.resignFirstResponder()
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SSKEnvironment.shared.databaseStorageRef.read { tx in
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UsernameQuerier().queryForUsername(
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username: username,
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fromViewController: self,
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tx: tx,
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failureSheetDismissalDelegate: self,
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onSuccess: { [weak self] aci in
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AssertIsOnMainThread()
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self?.findByUsernameDelegate?.findByUsername(address: SignalServiceAddress(aci))
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}
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)
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}
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}
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}
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extension FindByUsernameViewController: SheetDismissalDelegate {
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public func didDismissPresentedSheet() {
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usernameTextField.becomeFirstResponder()
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}
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}
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