From 8e38112ad353fa5bf918225340fc9c92fddef31a Mon Sep 17 00:00:00 2001
From: junglie85 <junglie85@gmail.com>
Date: Tue, 17 Mar 2026 02:54:42 +0000
Subject: [PATCH] Add Send and Sync to OwnedDisplayHandle (#4509)

---
 winit-core/src/event_loop/mod.rs  | 4 ++--
 winit/src/changelog/unreleased.md | 1 +
 winit/tests/send_objects.rs       | 5 +++++
 winit/tests/sync_object.rs        | 5 +++++
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/winit-core/src/event_loop/mod.rs b/winit-core/src/event_loop/mod.rs
index 0337e5c63..3ef3ed5f5 100644
--- a/winit-core/src/event_loop/mod.rs
+++ b/winit-core/src/event_loop/mod.rs
@@ -176,11 +176,11 @@ pub trait EventLoopProxyProvider: Send + Sync + Debug {
 /// - A reference-counted pointer to the underlying type.
 #[derive(Clone)]
 pub struct OwnedDisplayHandle {
-    pub(crate) handle: Arc<dyn HasDisplayHandle>,
+    pub(crate) handle: Arc<dyn HasDisplayHandle + Send + Sync>,
 }
 
 impl OwnedDisplayHandle {
-    pub fn new(handle: Arc<dyn HasDisplayHandle>) -> Self {
+    pub fn new(handle: Arc<dyn HasDisplayHandle + Send + Sync>) -> Self {
         Self { handle }
     }
 }
diff --git a/winit/src/changelog/unreleased.md b/winit/src/changelog/unreleased.md
index 89a7578e2..92bffed22 100644
--- a/winit/src/changelog/unreleased.md
+++ b/winit/src/changelog/unreleased.md
@@ -45,6 +45,7 @@ changelog entry.
 - Add `keyboard` support for OpenHarmony.
 - On iOS, add Apple Pencil support with force, altitude, and azimuth data.
 - On Redox, add support for missing keyboard scancodes.
+- Implement `Send` and `Sync` for `OwnedDisplayHandle`.
 
 ### Changed
 
diff --git a/winit/tests/send_objects.rs b/winit/tests/send_objects.rs
index 48bfa3b94..da8c90b1e 100644
--- a/winit/tests/send_objects.rs
+++ b/winit/tests/send_objects.rs
@@ -28,3 +28,8 @@ fn custom_cursor_send() {
     needs_send::<winit::cursor::CustomCursorSource>();
     needs_send::<winit::cursor::CustomCursor>();
 }
+
+#[test]
+fn owned_display_handle_send() {
+    needs_send::<winit::event_loop::OwnedDisplayHandle>();
+}
diff --git a/winit/tests/sync_object.rs b/winit/tests/sync_object.rs
index 1c156c012..0cea3cb00 100644
--- a/winit/tests/sync_object.rs
+++ b/winit/tests/sync_object.rs
@@ -21,3 +21,8 @@ fn custom_cursor_sync() {
     needs_sync::<winit::cursor::CustomCursorSource>();
     needs_sync::<winit::cursor::CustomCursor>();
 }
+
+#[test]
+fn owned_display_handle_sync() {
+    needs_sync::<winit::event_loop::OwnedDisplayHandle>();
+}