This project shows how to use NSProgress in a Cocoa/AppKit context, where you may have multiple things in progress, and want to coalesce them into a single master progress feedback UI through creating a tree of NSProgress objects.
Features shown:
- Creating parent/child NSProgress objects with an implicit parent established through
[NSProgress becomeCurrentWithPendingUnitCount:] - Running code on relevant progress completion in both the children and parents
- Propagating cancellation from parent to children