macOS: resample deferred macOS surface resize events

winit-appkit/src/view.rs

@@ -6,7 +6,7 @@ use std::rc::Rc;
 use dpi::{LogicalPosition, PhysicalSize};
 use objc2::rc::Retained;
 use objc2::runtime::{AnyObject, Sel};
-use objc2::{AnyThread, DefinedClass, MainThreadMarker, define_class, msg_send};
+use objc2::{AnyThread, DefinedClass, MainThreadMarker, Message, define_class, msg_send};
 use objc2_app_kit::{
     NSApplication, NSCursor, NSDragOperation, NSDraggingSession, NSEvent, NSEventPhase,
     NSResponder, NSTextInputClient, NSTrackingArea, NSTrackingAreaOptions, NSView,
@@ -904,13 +904,14 @@ impl WinitView {
         });
     }
 
-    fn surface_resized(&self) {
+    pub(super) fn surface_resized(&self) {
         let Some(window) = (**self).window() else {
             return;
         };
-        let size = self.surface_size();
         let window_id = window_id(&window);
+        let view = self.retain();
         self.ivars().app_state.maybe_queue_with_handler(move |app, event_loop| {
+            let size = view.surface_size();
             app.window_event(event_loop, window_id, WindowEvent::SurfaceResized(size));
         });
     }

winit-appkit/src/window_delegate.rs

@@ -1119,7 +1119,7 @@ impl WindowDelegate {
             let size = NSSize::new(logical_size.width, logical_size.height);
             window.setContentSize(size);
         }
-        self.queue_event(WindowEvent::SurfaceResized(physical_size));
+        self.view().surface_resized();
     }
 
     fn emit_move_event(&self) {

winit/src/changelog/unreleased.md

@@ -122,6 +122,8 @@ changelog entry.
 - On macOS, fix borderless game presentation options not sticking after switching spaces.
 - On macOS, fix IME being locked on (regardless of requests to disable) after being enabled once.
 - On macOS, fix a panic and incorrect cursor position in Ime::Preedit when the preedit string contains special characters (ie. emojis) caused by incorrect UTF-16 to UTF-8 offset conversion.
+- On macOS, prevent an older deferred surface resize from overriding newer sizes after AppKit
+  transitions.
 - On Wayland, fix a protocol error when setting a custom cursor on compositors with `wl_surface` version below 3.
 - On Redox, fix `run_app_on_demand` exiting immediately after a previous `run_app_on_demand` called `exit`.
 - On Redox, fill in logical key for keyboard events rather than emitting a separate fake IME event.