Add support for iOS / UIKit, and clean up CoreGraphics impl

Author: madsmtm

.github/workflows/ci.yml

@@ -47,7 +47,7 @@ jobs:
           - { target: x86_64-unknown-redox,     os: ubuntu-latest,   }
           - { target: x86_64-unknown-freebsd,   os: ubuntu-latest,   }
           - { target: x86_64-unknown-netbsd,    os: ubuntu-latest, options: --no-default-features, features: "x11,x11-dlopen,wayland,wayland-dlopen"  }
-          - { target: x86_64-apple-darwin,      os: macos-latest,    }
+          - { target: aarch64-apple-darwin,     os: macos-latest,    }
           - { target: wasm32-unknown-unknown,   os: ubuntu-latest,   }
         exclude:
           # Orbital doesn't follow MSRV
@@ -56,6 +56,9 @@ jobs:
         include:
           - rust_version: nightly
             platform: { target: wasm32-unknown-unknown, os: ubuntu-latest, options: "-Zbuild-std=panic_abort,std", rustflags: "-Ctarget-feature=+atomics,+bulk-memory" }
+          # Mac Catalyst is only Tier 2 since Rust 1.81
+          - rust_version: 'nightly'
+            platform: { target: aarch64-apple-ios-macabi, os: macos-latest }
 
     env:
       RUST_BACKTRACE: 1

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Unreleased
 
+- Added support for iOS, tvOS, watchOS and visionOS.
+- Redo the way surfaces work on macOS to work directly with layers, which will allow initializing directly from a `CALayer` in the future.
+
 # 0.4.5
 
 - Make the `wayland-sys` dependency optional. (#223)

Cargo.toml

@@ -45,14 +45,20 @@ x11rb = { version = "0.13.0", features = ["allow-unsafe-code", "shm"], optional
 version = "0.59.0"
 features = ["Win32_Graphics_Gdi", "Win32_UI_Shell", "Win32_UI_WindowsAndMessaging", "Win32_Foundation"]
 
-[target.'cfg(target_os = "macos")'.dependencies]
+[target.'cfg(target_vendor = "apple")'.dependencies]
 bytemuck = { version = "1.12.3", features = ["extern_crate_alloc"] }
 core-graphics = "0.24.0"
 foreign-types = "0.5.0"
-objc2 = "0.5.1"
-objc2-foundation = { version = "0.2.0", features = ["dispatch", "NSThread"] }
-objc2-app-kit = { version = "0.2.0", features = ["NSResponder", "NSView", "NSWindow"] }
-objc2-quartz-core = { version = "0.2.0", features = ["CALayer", "CATransaction"] }
+objc2 = "0.5.2"
+objc2-foundation = { version = "0.2.2", features = [
+    "NSDictionary",
+    "NSGeometry",
+    "NSKeyValueObserving",
+    "NSString",
+    "NSThread",
+    "NSValue",
+] }
+objc2-quartz-core = { version = "0.2.2", features = ["CALayer", "CATransaction"] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 js-sys = "0.3.63"

src/backend_dispatch.rs

@@ -186,8 +186,8 @@ make_dispatch! {
     Kms(Arc<backends::kms::KmsDisplayImpl<D>>, backends::kms::KmsImpl<D, W>, backends::kms::BufferImpl<'a, D, W>),
     #[cfg(target_os = "windows")]
     Win32(D, backends::win32::Win32Impl<D, W>, backends::win32::BufferImpl<'a, D, W>),
-    #[cfg(target_os = "macos")]
-    CG(D, backends::cg::CGImpl<D, W>, backends::cg::BufferImpl<'a, D, W>),
+    #[cfg(target_vendor = "apple")]
+    CoreGraphics(D, backends::cg::CGImpl<D, W>, backends::cg::BufferImpl<'a, D, W>),
     #[cfg(target_arch = "wasm32")]
     Web(backends::web::WebDisplayImpl<D>, backends::web::WebImpl<D, W>, backends::web::BufferImpl<'a, D, W>),
     #[cfg(target_os = "redox")]