I want to implement a feature on macOS using FileProvider: only grant the allowsTrashing permission to files that have already been downloaded, while not granting it to dataless files. However, the system will automatically drain and clear the content. How can this be detected (and how to determine whether a file is dataless)

I want to use FileProvder to implement the function of recovering from the recycle bin (the cloud recycle bin does not move, and after the local recycle bin is restored, the upload event is triggered again), but testing shows that the current recovery from the recycle bin is through the modifyItem event, and the CreateItem event is not triggered again to upload locally restored files Implement the deletion of undelivered files (dateless) without moving them to the recycle bin, which currently appears to be achieved by granting file. dash permission. But it is possible for the content of a file to be manually verified by the user. How can this be solved? How can we dynamically monitor whether a file is dataless Thank you for your reply. Could you please help answer my question