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session-ios/Session/Conversations/Views & Modals/LinkPreviewModal.swift

67 lines
3.1 KiB
Swift

final class LinkPreviewModal : Modal {
private let onLinkPreviewsEnabled: () -> Void
// MARK: Lifecycle
init(onLinkPreviewsEnabled: @escaping () -> Void) {
self.onLinkPreviewsEnabled = onLinkPreviewsEnabled
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
preconditionFailure("Use init(onLinkPreviewsEnabled:) instead.")
}
override init(nibName: String?, bundle: Bundle?) {
preconditionFailure("Use init(onLinkPreviewsEnabled:) instead.")
}
override func populateContentView() {
// Title
let titleLabel = UILabel()
titleLabel.textColor = Colors.text
titleLabel.font = .boldSystemFont(ofSize: Values.largeFontSize)
titleLabel.text = "Enable Link Previews?"
titleLabel.textAlignment = .center
// Message
let messageLabel = UILabel()
messageLabel.textColor = Colors.text
messageLabel.font = .systemFont(ofSize: Values.smallFontSize)
let message = "Enabling link previews will show previews for URLs you send and receive. This can be useful, but Session will need to contact linked websites to generate previews. You can always disable link previews in Session's settings."
messageLabel.text = message
messageLabel.numberOfLines = 0
messageLabel.lineBreakMode = .byWordWrapping
messageLabel.textAlignment = .center
// Enable button
let enableButton = UIButton()
enableButton.set(.height, to: Values.mediumButtonHeight)
enableButton.layer.cornerRadius = Modal.buttonCornerRadius
enableButton.backgroundColor = Colors.buttonBackground
enableButton.titleLabel!.font = .systemFont(ofSize: Values.smallFontSize)
enableButton.setTitleColor(Colors.text, for: UIControl.State.normal)
enableButton.setTitle("Enable", for: UIControl.State.normal)
enableButton.addTarget(self, action: #selector(enable), for: UIControl.Event.touchUpInside)
// Button stack view
let buttonStackView = UIStackView(arrangedSubviews: [ cancelButton, enableButton ])
buttonStackView.axis = .horizontal
buttonStackView.spacing = Values.mediumSpacing
buttonStackView.distribution = .fillEqually
// Main stack view
let mainStackView = UIStackView(arrangedSubviews: [ titleLabel, messageLabel, buttonStackView ])
mainStackView.axis = .vertical
mainStackView.spacing = Values.largeSpacing
contentView.addSubview(mainStackView)
mainStackView.pin(.leading, to: .leading, of: contentView, withInset: Values.largeSpacing)
mainStackView.pin(.top, to: .top, of: contentView, withInset: Values.largeSpacing)
contentView.pin(.trailing, to: .trailing, of: mainStackView, withInset: Values.largeSpacing)
contentView.pin(.bottom, to: .bottom, of: mainStackView, withInset: Values.largeSpacing)
}
// MARK: Interaction
@objc private func enable() {
SSKPreferences.areLinkPreviewsEnabled = true
presentingViewController?.dismiss(animated: true, completion: nil)
onLinkPreviewsEnabled()
}
}