`AnyClass::responds_to` delegates to `class_respondsToSelector`, a
function provided by the Objective-C runtime. However, at some point,
this began to return `false` for selectors referring to undocumented
cursors, despite the cursors remaining accessible via said selectors.
That this check fails prevents the cursors from being used.
We can instead send `respondsToSelector:` to the `NSCursor` class
itself. As an instance method, this is nominally impossible; however,
Apple grants an exemption[1] that permits class objects to perform
instance methods defined in the root class.
Checking for the undocumented cursors in this way gets them working
again, at least on macOS Sequoia 15.1.1.
[1]: https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ObjectiveC/Chapters/ocObjectsClasses.html#//apple_ref/doc/uid/TP30001163-CH11-TPXREF120
Move iOS and macOS implementations to a shared folder called `apple`, to allow
us to reduce the code-duplication between these platforms in the future.
The folder structure is now:
- `src/platform_impl/apple/`
- `appkit/`
- `uikit/`
- `example_shared_file.rs`
- `mod.rs`
* Add preliminary support for tvOS, watchOS and visionOS
* Reduce duplication in Cargo.toml when specifying dependencies
2024-06-24 13:26:49 +02:00
Renamed from src/platform_impl/macos/cursor.rs (Browse further)
