feat(event): add hit-test diagnostics

Package.swift

@@ -641,7 +641,10 @@ let cOpenSwiftUITarget = Target.target(
         .headerSearchPath("../OpenSwiftUI_SPI"),
     ],
     cxxSettings: sharedCxxSettings,
-    swiftSettings: sharedSwiftSettings
+    swiftSettings: sharedSwiftSettings,
+    linkerSettings: [
+        .linkedFramework("ApplicationServices", .when(platforms: [.macOS])),
+    ]
 )
 
 let cOpenSwiftUITestTarget = Target.testTarget(

Sources/COpenSwiftUI/Overlay/Accessibility/AXRequest.c

@@ -0,0 +1,20 @@
+//
+//  AXRequest.c
+//  COpenSwiftUI
+//
+//  Audited for 6.5.4
+//  Status: Complete
+
+#include "Shims/HIServicesSPI.h"
+
+#if OPENSWIFTUI_TARGET_OS_OSX
+
+bool AXIsClientMakingRequest(void) {
+    return _AXGetClientForCurrentRequestUntrusted() != kAXClientTypeNoActiveRequestFound;
+}
+
+void AXOverrideIsClientMakingRequest(bool value) {
+    _AXSetClientIdentificationOverride(value ? kAXClientTypeUnknown : kAXClientTypeNoActiveRequestFound);
+}
+
+#endif /* OPENSWIFTUI_TARGET_OS_OSX */

Sources/COpenSwiftUI/Shims/HIServicesSPI.h

@@ -0,0 +1,44 @@
+//
+//  HIServicesSPI.h
+//  COpenSwiftUI
+//
+//  Audited for 6.5.4
+//  Status: Complete
+
+#ifndef HIServicesSPI_h
+#define HIServicesSPI_h
+
+#include "OpenSwiftUIBase.h"
+
+#if OPENSWIFTUI_TARGET_OS_OSX
+
+typedef CF_ENUM(int32_t, AXClientType) {
+    kAXClientTypeNoActiveRequestFound = 0,
+    kAXClientTypeUnknown,
+    kAXClientTypeRaft,
+    kAXClientTypeXCUITest,
+    kAXClientTypeXCTest,
+    kAXClientTypeScripter2,
+    kAXClientTypeSystemEvents,
+    kAXClientTypeVoiceOver,
+    kAXClientTypeAssistiveControl,
+    kAXClientTypeFullKeyboardAccess,
+    kAXClientTypeDictation,
+};
+
+OPENSWIFTUI_EXTERN_C_BEGIN
+
+AXClientType _AXGetClientForCurrentRequestUntrusted(void);
+void _AXSetClientIdentificationOverride(AXClientType clientType);
+
+OPENSWIFTUI_EXPORT
+bool AXIsClientMakingRequest(void);
+
+OPENSWIFTUI_EXPORT
+void AXOverrideIsClientMakingRequest(bool value);
+
+OPENSWIFTUI_EXTERN_C_END
+
+#endif /* OPENSWIFTUI_TARGET_OS_OSX */
+
+#endif /* HIServicesSPI_h */

Sources/COpenSwiftUI/Shims/UIKit/_UIHitTestContext.h

@@ -0,0 +1,36 @@
+//
+//  _UIHitTestContext.h
+//  COpenSwiftUI
+//
+//  Audited for 6.5.4
+//  Status: Complete
+
+#ifndef _UIHitTestContext_h
+#define _UIHitTestContext_h
+
+#include "OpenSwiftUIBase.h"
+#include "UIGestureRecognizer_Private.h"
+
+#if __has_include(<UIKit/UIKit.h>)
+
+#import <UIKit/UIKit.h>
+
+NS_HEADER_AUDIT_BEGIN(nullability, sendability)
+
+@interface _UIHitTestContext : NSObject
++ (instancetype)contextWithPoint:(CGPoint)point radius:(CGFloat)radius;
+@property (nonatomic, readonly) CGFloat radius;
+@end
+
+@interface UIView (OpenSwiftUI_HitTesting)
+- (nullable id<_UIGestureRecognizerContainer>)_hitTestWithContext:(_UIHitTestContext *)context;
+@end
+
+OPENSWIFTUI_EXPORT
+_UIHitTestContext * _Nullable _UICurrentHitTestContext(void) OPENSWIFTUI_SWIFT_NAME(getter:_UIHitTestContext.current);
+
+NS_HEADER_AUDIT_END(nullability, sendability)
+
+#endif /* __has_include(<UIKit/UIKit.h>) */
+
+#endif /* _UIHitTestContext_h */