TODO.md

NSExtension NSExtensionAttributes NSExtensionActivationRule NSExtensionActivationSupportsWebPageWithMaxCount 1 NSExtensionActivationSupportsWebURLWithMaxCount 1

import Cocoa import CoreTransferable

class ShareViewController: NSViewController { override func loadView() { self.view = .init(frame: .zero) }

override func viewDidAppear() {
    super.viewDidAppear()
    
    Task {
        let url = await getInputUrl()
        if let url {
            var components = URLComponents()
            components.scheme = "https"
            components.host = "app.raindrop.io"
            components.path = "/add"
            
            components.queryItems = [
                .init(name: "link", value: url.absoluteString)
            ]
            
            NSWorkspace.shared.open(components.url!)
        }
    }
    
    extensionContext?.completeRequest(returningItems: [])
}

func getInputUrl() async -> URL? {
    for input in extensionContext!.inputItems {
        guard let input = input as? NSExtensionItem else { continue }
        guard let attachments = input.attachments else { continue }
                                
        for attachment in attachments {
            let url = try? await attachment.loadTransferable(type: URL.self)
            if let url {
                return url
            }
        }
    }
    return nil
}

}

extension NSItemProvider: @unchecked Sendable { /// async version of loadTransferable public func loadTransferable<T: Transferable>(type transferableType: T.Type) async throws -> T { try await withCheckedThrowingContinuation { continuation in _ = self.loadTransferable(type: transferableType) { switch $0 { case .success(let result): continuation.resume(returning: result) case .failure(let error): continuation.resume(throwing: error) } } } } }