feat: Add owned window handle

This adds "WindowHandle" and "DisplayHandle" types as discussed in #188.
These act similar to `Waker`'s in stdlib, as they are a wrapper around a
trait object.

Signed-off-by: John Nunley <dev@notgull.net>

Author: notgull

CHANGELOG.md

@@ -2,13 +2,14 @@
 
 ## Unreleased
 
-* **Breaking:** Rework web handles to remove `wasm-bindgen` from public API. (#184)
+- **Breaking:** Rework web handles to remove `wasm-bindgen` from public API. (#184)
 - **Breaking:** Remove `WebWindowHandle` as it is no longer used. (#186)
 - **Breaking:** Remove deprecated `HasRawWindowHandle` and `HasRawDisplayHandle` traits.
 - **Breaking:** Remove `UiKitWindowHandle::ui_view_controller` field, retrieve this from the UIView's responder chain instead.
 - **Breaking:** Rename `Web*` handles to `WasmBindgen*`, to make it clearer that these are specific to `wasm-bindgen`.
-* Improve documentation on AppKit and UIKit handles.
 - Enabled `std` feature by default.
+- Add owned window and display handles.
+- Improve documentation on AppKit and UIKit handles.
 
 ## 0.6.2 (2024-05-17)
 

src/lib.rs

@@ -47,6 +47,7 @@ mod drm;
 mod gbm;
 mod haiku;
 mod ohos;
+mod owned;
 mod redox;
 mod uikit;
 mod wayland;
@@ -61,6 +62,10 @@ pub use drm::{DrmDisplayHandle, DrmWindowHandle};
 pub use gbm::{GbmDisplayHandle, GbmWindowHandle};
 pub use haiku::{HaikuDisplayHandle, HaikuWindowHandle};
 pub use ohos::{OhosDisplayHandle, OhosNdkWindowHandle};
+pub use owned::{
+    DisplayHandleVtable, OwnedDisplayHandle, OwnedWindowHandle, SyncDisplayHandle,
+    SyncWindowHandle, WindowHandleVtable,
+};
 pub use redox::{OrbitalDisplayHandle, OrbitalWindowHandle};
 pub use uikit::{UiKitDisplayHandle, UiKitWindowHandle};
 pub use wayland::{WaylandDisplayHandle, WaylandWindowHandle};
@@ -454,6 +459,13 @@ mod tests {
         assert_not_impl_any!(WasmBindgenOffscreenCanvasWindowHandle: Send, Sync);
         assert_impl_all!(AndroidNdkWindowHandle: Send, Sync);
         assert_impl_all!(HaikuWindowHandle: Send, Sync);
+
+        assert_impl_all!(OwnedDisplayHandle: Unpin, UnwindSafe, RefUnwindSafe);
+        assert_not_impl_any!(OwnedDisplayHandle: Send, Sync);
+        assert_impl_all!(SyncDisplayHandle: Unpin, UnwindSafe, RefUnwindSafe, Sync, Send);
+        assert_impl_all!(OwnedWindowHandle: Unpin, UnwindSafe, RefUnwindSafe);
+        assert_not_impl_any!(OwnedWindowHandle: Send, Sync);
+        assert_impl_all!(SyncWindowHandle: Unpin, UnwindSafe, RefUnwindSafe, Sync, Send);
     }
 
     #[allow(unused)]