NSSharingService.perform() with Send To Photos

Question

在MacOS(催化剂应用程序，但AppKit bundle)上，我正在主应用程序菜单中创建共享子菜单" On fly"从像这样的菜单委托:

func menuWillOpen(_ menu: NSMenu) {
self.provider = NSItemProvider(contentsOf: url)! //url points to existing temporary file of type .png

menu.removeAllItems()
let srvcs = NSSharingService.sharingServices(forItems: [self.provider!])
for srv in srvcs {
let it = NSMenuItem(title: srv.menuItemTitle, action: #selector(openSharingService), keyEquivalent: "")
it.image = srv.image
it.representedObject = srv
it.target = self

menu.addItem(it)
}
}
@objc private func openSharingService(sender: NSMenuItem) {
let service = (sender.representedObject as! NSSharingService)
service.perform(withItems: [self.provider!])
}

它适用于任何共享类型，除了发送到照片。与发送到照片，我得到这个错误在控制台:

2021-10-27 08:59:02.042220+0200 Calculator2[14383:7732689] [xpc.exceptions] <NSXPCConnection: 0x6000008470c0> connection to service on pid 14388 named com.apple.share.System.add-to-iphoto.apple-extension-service: Exception caught during decoding of received selector _completeRequestReturningItems:forExtensionContextWithUUID:completion:, dropping incoming message.
Exception: Exception while decoding argument 0 (#2 of invocation):
Exception: value for key 'NS.objects' was of unexpected class 'NSURL (0x7fff801889e8) [/System/Library/Frameworks/CoreFoundation.framework]'. Allowed classes are '{(
"NSDate (0x7fff80188600) [/System/Library/Frameworks/CoreFoundation.framework]",
"NSString (0x7fff801ba8d0) [/System/Library/Frameworks/Foundation.framework]",
"NSNumber (0x7fff801ba3a8) [/System/Library/Frameworks/Foundation.framework]",
"NSData (0x7fff801885d8) [/System/Library/Frameworks/CoreFoundation.framework]",
"NSDictionary (0x7fff80188650) [/System/Library/Frameworks/CoreFoundation.framework]",
"NSArray (0x7fff80188510) [/System/Library/Frameworks/CoreFoundation.framework]"
)}'.

Photos app打开并添加了图片，但是我的app收到了上面的错误，菜单都是灰色的，直到重新启动。我做错什么了吗?

编辑:我试着像这样调用服务(传递NSImage):

self.provider!.loadDataRepresentation(forTypeIdentifier: "public.png", completionHandler: {(data, error) in
let img = NSImage(data: data!)
DispatchQueue.main.async {
service.perform(withItems: [img])
}
})

…它失败了，错误完全相同。再次抱怨NSURL，即使我根本没有通过NSURL。

Answer 1

所以我无法找到错误，但我设法使解决方案。我在函数openSharingService()中添加了以下代码，以便识别Add to Photos并以不同的方式处理它:

if ( (service == NSSharingService(named: .addToIPhoto)) && (self.provider!.hasItemConformingToTypeIdentifier("public.png")) ) {
self.provider!.loadObject(ofClass: NSURL.self, completionHandler: {(val, error) in
//print(val)
DispatchQueue.main.async {
let u = val as! NSURL
self.photosHandler(u)
NSWorkspace.shared.launchApplication("Photos")
}
})
}

自我。photosHandler是一个回调从我的应用的催化剂包填充，它添加照片使用phphotollibrary:

PHPhotoLibrary.requestAuthorization(for: .addOnly, handler: self.OnAuthorizationDone)

(OnAuthorizationDone()也必须实现，使用PHPhotoLibrary.shared().performChanges()和PHAssetChangeRequest.creationRequestForAssetFromImage())