WB_Hotkeys redesigned to use enhanced input. Amazing!

Source/Integration/LuprexUserWidget.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Blueprint/UserWidget.h"
+#include "EnhancedInputComponent.h"
+#include "LuprexUserWidget.generated.h"
+
+UCLASS(BlueprintType, Blueprintable)
+class INTEGRATION_API UlxUserWidget : public UUserWidget
+{
+	GENERATED_BODY()
+
+public:
+	using EventBinding = TUniquePtr<FEnhancedInputActionEventBinding>;
+
+	UlxUserWidget(const FObjectInitializer& ObjectInitializer);
+
+	virtual void NativeOnInitialized() override;
+
+	// Clone every enhanced-input action binding currently on InputComponent
+	// into SavedEnhancedActionEventBindings, so bindings can later be removed
+	// from the component and reinstated without losing their delegates.
+	void BackupInputComponent();
+
+	// Remove every live event binding whose action is InputAction.
+	// No-op if there are none, or if InputComponent isn't enhanced.
+	UFUNCTION(BlueprintCallable, Category="Luprex|Widget Enhanced Input")
+	void DisableEventBinding(const UInputAction* InputAction);
+
+	// Replace any live bindings for InputAction with fresh clones of every
+	// saved binding for that action. Leaves the backup array intact so this
+	// can be called repeatedly.
+	UFUNCTION(BlueprintCallable, Category="Luprex|Widget Enhanced Input")
+	void RestoreInputBinding(const UInputAction* InputAction);
+
+	// Install live bindings on From that, when fired, dispatch through a
+	// clone of each saved binding for To. Clears any pre-existing live
+	// bindings on From first. Backup array is untouched.
+	UFUNCTION(BlueprintCallable, Category="Luprex|Widget Enhanced Input")
+	void RedirectInputAction(const UInputAction* From, const UInputAction* To);
+
+	// Cloned bindings captured from InputComponent after construction.
+	TArray<EventBinding> SavedEnhancedActionEventBindings;
+
+private:
+	// Strip the synthetic const off UEnhancedInputComponent::GetActionEventBindings
+	// to get direct mutable access to the protected array. Well-defined because
+	// the underlying object is not const; only the getter's return type is.
+	static TArray<EventBinding>& GetMutableActionEventBindings(UEnhancedInputComponent* EIC);
+};