// SPDX-License-Identifier: MIT // Copyright © 2018 WireGuard LLC. All Rights Reserved. import Cocoa class TunnelListCell: NSView { var tunnel: TunnelContainer? { didSet(value) { // Bind to the tunnel's name nameLabel.stringValue = tunnel?.name ?? "" nameObservationToken = tunnel?.observe(\TunnelContainer.name) { [weak self] tunnel, _ in self?.nameLabel.stringValue = tunnel.name } // Bind to the tunnel's status statusImageView.image = TunnelListCell.image(for: tunnel?.status) statusObservationToken = tunnel?.observe(\TunnelContainer.status) { [weak self] tunnel, _ in self?.statusImageView.image = TunnelListCell.image(for: tunnel.status) } } } let nameLabel: NSTextField = { let nameLabel = NSTextField() nameLabel.isEditable = false nameLabel.isSelectable = false nameLabel.isBordered = false nameLabel.maximumNumberOfLines = 1 nameLabel.lineBreakMode = .byTruncatingTail return nameLabel }() let statusImageView = NSImageView() private var statusObservationToken: AnyObject? private var nameObservationToken: AnyObject? init() { super.init(frame: CGRect.zero) addSubview(statusImageView) addSubview(nameLabel) statusImageView.translatesAutoresizingMaskIntoConstraints = false nameLabel.translatesAutoresizingMaskIntoConstraints = false nameLabel.backgroundColor = .clear NSLayoutConstraint.activate([ self.leadingAnchor.constraint(equalTo: statusImageView.leadingAnchor), statusImageView.trailingAnchor.constraint(equalTo: nameLabel.leadingAnchor), statusImageView.widthAnchor.constraint(equalToConstant: 20), nameLabel.trailingAnchor.constraint(equalTo: self.trailingAnchor), statusImageView.centerYAnchor.constraint(equalTo: self.centerYAnchor), nameLabel.centerYAnchor.constraint(equalTo: self.centerYAnchor) ]) } required init?(coder decoder: NSCoder) { fatalError("init(coder:) has not been implemented") } static func image(for status: TunnelStatus?) -> NSImage? { guard let status = status else { return nil } switch status { case .active, .restarting, .reasserting: return NSImage(named: NSImage.statusAvailableName) case .activating, .waiting: return NSImage(named: NSImage.statusPartiallyAvailableName) case .deactivating, .inactive: return nil } } override func prepareForReuse() { nameLabel.stringValue = "" statusImageView.image = nil } }