Integrating with Photos on macOS

WWDC 2018

Project Categories ( new )

PHProjectInfo

• What’s New in Photos APIs ( WWDC 2017 )

PHProjectInfo Updates ( new )

Updating appends sections for new assets

Regions of Interest ( new )

Supporting Copy and Paste ( new )

• Implement validateMenuItem(_ menuItem: NSMenuItem)
• Only return true if the extension can handle the current pasteboard content

Supporting Drag and Drop

• Photos handles drags of assets to the extension by default
• The extension should only handle extension-internal drags

Interacting with Photos

Drag and Drop on macOS

• Uses NSPasteboard
• Data is written and read using the main thread

Then and Now

• Only local content
• Read and Write file URLs to the pasteboard
• Data in iCloud with Optimized Local Storage
• Privacy Settings

File Promises

What is a file promise ?

• Promise that a file of a certain type will be written to a provided location
• Allows the sender to write a promised file in the background
• NSFilePromiseReceiver
• NSFilePromiseProvider
• What’s New in Cocoa ( WWDC 2016 )

File Promise Providers

Providing File Promises when the data isn’t available on disk