Use objc2-foundation and objc2-app-kit

[madsmtm]

The objc2 project is the successor to objc, and contains automatically generated bindings to the Foundation and AppKit frameworks (and many other frameworks), while ensuring that memory management rules are upheld.

This allows dark-light to reduce the amount of complex unsafe code, as well as making it easier for you to in the future change subscribe to listen for theme change notifications instead of the busy loop.

[jacksongoode]

making it easier for you to in the future change subscribe to listen for theme change notifications instead of the busy loop

How would this upgrade enable that specifically?

[madsmtm]

making it easier for you to in the future change subscribe to listen for theme change notifications instead of the busy loop

How would this upgrade enable that specifically?

There's two ways to listen for changes to the appearance that I know of:

• Subscribing to the "AppleInterfaceThemeChangedNotification" notification using [NSDistributedNotificationCenter] (undocumented) example.
• Using Key-Value Observing on -[NSApplication effectiveAppearance], as documented (in Swift) here.

objc2-foundation/objc2-app-kit provides you the tools to use either of these, by using the generated interfaces to NSDistributedNotificationCenter or to key-value observing categories.

Using these are possible without objc2, but it's a lot harder, as you also have to consider a bunch of memory management, and ensuring you get the method signatures correct.