mirror of https://github.com/oxen-io/session-ios
Implement open group suggestion sheet
Niels Andriesse
5 years ago
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9fd556ca3a
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5bd2308d26
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{
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"images" : [
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{
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"idiom" : "universal",
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"filename" : "ChatBubbles.pdf"
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}
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],
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"info" : {
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"version" : 1,
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"author" : "xcode"
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}
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}
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final class OpenGroupSuggestionSheet : Sheet {
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override func populateContentView() {
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// Set up image view
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let imageView = UIImageView(image: #imageLiteral(resourceName: "ChatBubbles"))
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// Set up title label
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let titleLabel = UILabel()
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titleLabel.textColor = Colors.text
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titleLabel.font = .boldSystemFont(ofSize: Values.largeFontSize)
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titleLabel.text = NSLocalizedString("No messages yet", comment: "")
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titleLabel.numberOfLines = 0
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titleLabel.lineBreakMode = .byWordWrapping
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titleLabel.textAlignment = .center
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// Set up top explanation label
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let topExplanationLabel = UILabel()
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topExplanationLabel.textColor = Colors.text
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topExplanationLabel.font = .systemFont(ofSize: Values.mediumFontSize)
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topExplanationLabel.text = NSLocalizedString("Would you like to join the Session Public Chat?", comment: "")
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topExplanationLabel.numberOfLines = 0
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topExplanationLabel.textAlignment = .center
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topExplanationLabel.lineBreakMode = .byWordWrapping
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// Set up join button
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let joinButton = Button(style: .prominentOutline, size: .medium)
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joinButton.set(.width, to: 240)
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joinButton.setTitle(NSLocalizedString("Join Public Chat", comment: ""), for: UIControl.State.normal)
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joinButton.addTarget(self, action: #selector(joinSessionPublicChat), for: UIControl.Event.touchUpInside)
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// Set up dismiss button
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let dismissButton = Button(style: .regular, size: .medium)
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dismissButton.set(.width, to: 240)
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dismissButton.setTitle(NSLocalizedString("No, thank you", comment: ""), for: UIControl.State.normal)
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dismissButton.addTarget(self, action: #selector(close), for: UIControl.Event.touchUpInside)
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// Set up bottom explanation label
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let bottomExplanationLabel = UILabel()
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bottomExplanationLabel.textColor = Colors.text.withAlphaComponent(Values.unimportantElementOpacity)
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bottomExplanationLabel.font = .systemFont(ofSize: Values.verySmallFontSize)
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bottomExplanationLabel.text = NSLocalizedString("Open groups can be joined by anyone and do not provide full metadata protection", comment: "")
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bottomExplanationLabel.numberOfLines = 0
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bottomExplanationLabel.textAlignment = .center
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bottomExplanationLabel.lineBreakMode = .byWordWrapping
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// Set up button stack view
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let bottomStackView = UIStackView(arrangedSubviews: [ joinButton, dismissButton, bottomExplanationLabel ])
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bottomStackView.axis = .vertical
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bottomStackView.spacing = Values.mediumSpacing
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bottomStackView.alignment = .fill
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// Set up main stack view
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let stackView = UIStackView(arrangedSubviews: [ imageView, titleLabel, topExplanationLabel, bottomStackView ])
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stackView.axis = .vertical
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stackView.spacing = Values.largeSpacing
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stackView.alignment = .center
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// Set up constraints
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contentView.addSubview(stackView)
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stackView.pin(.leading, to: .leading, of: contentView, withInset: Values.largeSpacing)
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stackView.pin(.top, to: .top, of: contentView, withInset: Values.largeSpacing)
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contentView.pin(.trailing, to: .trailing, of: stackView, withInset: Values.largeSpacing)
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contentView.pin(.bottom, to: .bottom, of: stackView, withInset: Values.veryLargeSpacing + overshoot)
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}
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@objc private func joinSessionPublicChat() {
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// TODO: Duplicate of the code in JoinPublicChatVC
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let channelID: UInt64 = 1
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let url = "https://chat.getsession.org"
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let displayName = OWSProfileManager.shared().localProfileName()
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// TODO: Profile picture & profile key
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let _ = LokiPublicChatManager.shared.addChat(server: url, channel: channelID).done(on: .main) { _ in
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let _ = LokiPublicChatAPI.getMessages(for: channelID, on: url)
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let _ = LokiPublicChatAPI.setDisplayName(to: displayName, on: url)
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let _ = LokiPublicChatAPI.join(channelID, on: url)
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}
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close()
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}
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override func close() {
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UserDefaults.standard.set(true, forKey: "hasSeenOpenGroupSuggestionSheet")
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super.close()
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}
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}
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class Sheet : UIViewController {
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private(set) var bottomConstraint: NSLayoutConstraint!
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// MARK: Settings
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let overshoot: CGFloat = 40
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override var preferredStatusBarStyle: UIStatusBarStyle { return .lightContent }
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// MARK: Components
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lazy var contentView: UIView = {
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let result = UIView()
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result.backgroundColor = Colors.modalBackground
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result.layer.cornerRadius = 24
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result.layer.masksToBounds = false
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result.layer.borderColor = Colors.modalBorder.cgColor
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result.layer.borderWidth = Values.borderThickness
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result.layer.shadowColor = UIColor.black.cgColor
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result.layer.shadowRadius = 8
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result.layer.shadowOpacity = 0.64
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return result
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}()
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// MARK: Lifecycle
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override func viewDidLoad() {
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super.viewDidLoad()
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view.backgroundColor = UIColor(hex: 0x000000).withAlphaComponent(Values.modalBackgroundOpacity)
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let swipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: #selector(close))
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swipeGestureRecognizer.direction = .down
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view.addGestureRecognizer(swipeGestureRecognizer)
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setUpViewHierarchy()
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}
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private func setUpViewHierarchy() {
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view.addSubview(contentView)
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contentView.pin(.leading, to: .leading, of: view, withInset: -Values.borderThickness)
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contentView.pin(.trailing, to: .trailing, of: view, withInset: Values.borderThickness)
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bottomConstraint = contentView.pin(.bottom, to: .bottom, of: view, withInset: overshoot)
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populateContentView()
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}
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/// To be overridden by subclasses.
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func populateContentView() {
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preconditionFailure("populateContentView() is abstract and must be overridden.")
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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// TODO: Animate
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// bottomConstraint.constant = contentView.height()
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// view.layoutIfNeeded()
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// bottomConstraint.constant = overshoot
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// UIView.animate(withDuration: 0.25) {
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// self.view.layoutIfNeeded()
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// }
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}
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// MARK: Interaction
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override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
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let touch = touches.first!
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let location = touch.location(in: view)
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if contentView.frame.contains(location) {
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super.touchesBegan(touches, with: event)
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} else {
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close()
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}
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}
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@objc func close() {
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dismiss(animated: true, completion: nil)
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}
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}
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