React Native macOS Draggable SDWebImage

WebImage.swift

import Cocoa
import SDWebImage


class InternalWebImage: NSView, NSDraggingSource, NSPasteboardItemDataProvider {
  let image = NSImageView()
  @objc var url: NSString = "" {
    didSet {
      self.setupView()
    }
  }
  
  @objc func pasteboard(_ pasteboard: NSPasteboard?, item: NSPasteboardItem, provideDataForType type: NSPasteboard.PasteboardType) {
    let imageUrl = FileConstants.tempUrl.appendingPathComponent("test_image.png")
    item.setString(imageUrl.absoluteString, forType: .fileURL)
  }
  
  func draggingSession(_ session: NSDraggingSession, sourceOperationMaskFor context: NSDraggingContext) -> NSDragOperation {
    return .copy
  }
  
  override func mouseDragged(with event: NSEvent) {
    let pasteboardItem = NSPasteboardItem()
    pasteboardItem.setDataProvider(self, forTypes: [.fileURL])
    let draggingItem = NSDraggingItem(pasteboardWriter: pasteboardItem)
    draggingItem.setDraggingFrame(self.bounds, contents: self.image)
    
    beginDraggingSession(with: [draggingItem], event: event, source: self)
  }
  
  override init(frame: CGRect) {
  super.init(frame: frame)
  }

  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
  }

  private func setupView() {
    let imageUrl = URL(string: self.url as String)
    image.sd_setImage(with: imageUrl)
    image.autoresizingMask = [.height, .width]
    
    self.addSubview(image)
  }
}

@objc (WebImageManager)
class WebImageManager: RCTViewManager {
 
  override static func requiresMainQueueSetup() -> Bool {
    return true
  }
 
  override func view() -> NSView! {
    return InternalWebImage()
  }
 
}