Issue #713

To setup toolbar, we need to implement NSToolbarDelegate that provides toolbar items. This delegate is responsible for many things

  • Set visible and allowed items with toolbarDefaultItemIdentifiers
  • Provide item with itemForItemIdentifier
  • Being notified with toolbarWillAddItem and toolbarDidRemoveItem
window.toolbarStyle = .unifiedCompact

let toolbar = NSToolbar(identifier: "Toolbar")
toolbar.displayMode = .iconAndLabel
toolbar.delegate = (NSApp.delegate as! AppDelegate)
toolbar.insertItem(withItemIdentifier: .add, at: 0)
toolbar.insertItem(withItemIdentifier: .settings, at: 1)
window.toolbar = toolbar

extension NSToolbarItem.Identifier {
    static let add = NSToolbarItem.Identifier(rawValue: "Add")
    static let settings = NSToolbarItem.Identifier(rawValue: "Settings")
}

extension AppDelegate: NSToolbarDelegate {
    func toolbar(
        _ toolbar: NSToolbar,
        itemForItemIdentifier itemIdentifier: NSToolbarItem.Identifier,
        willBeInsertedIntoToolbar flag: Bool
    ) -> NSToolbarItem? {
        switch itemIdentifier {
        case .add:
            let item = NSToolbarItem(itemIdentifier: itemIdentifier)
            item.label = "Add"
            item.image = NSImage(named: NSImage.Name("add"))
            let menuItem: NSMenuItem = NSMenuItem()
            menuItem.submenu = nil
            menuItem.title = "Add"
            item.menuFormRepresentation = menuItem
            item.toolTip = "Click here to add new entry"
            return item
        case .settings:
            let item = NSToolbarItem(itemIdentifier: itemIdentifier)
            item.label = "Settings"
            let button = NSButton(image: NSImage(named: NSImage.Name("gear"))!, target: nil, action: nil)
            button.bezelStyle = .texturedRounded
            item.view = button
            return item
        default:
            return nil
        }
    }

    func toolbarDefaultItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
        [.add, .settings]
    }

    func toolbarAllowedItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
        [.add, .settings]
    }
}

Read more