EnhancedRawInput.h

 
// (c) 2025 by Lemontree Softworks - All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Modules/ModuleManager.h"
#include "IInputDeviceModule.h"
#include "IInputDevice.h"
#include "GenericPlatform/GenericApplicationMessageHandler.h"
 
constexpr auto MaxEnhancedRawInputAxis = 8;
constexpr auto MaxEnhancedRawInputButtons = 128;
constexpr auto MaxEnhancedRawInputPovs = 4;

DECLARE_DELEGATE_RetVal_TwoParams(bool, FEnhancedRawInputDataDelegate, int32 /*DataSize*/, const struct tagRAWINPUT* /*Data */);

class IEnhancedRawInput : public IInputDevice
{
public:
    explicit IEnhancedRawInput(const TSharedRef<FGenericApplicationMessageHandler> &InMessageHandler);
    virtual ~IEnhancedRawInput() override {};
    virtual void SetBindings(const FString InterfaceName) {}

    virtual void SetAxisBinding(const FString InterfaceName, const int32 AxisUsage, const FName KeyName) {}
    
    virtual void SetButtonBinding(const FString InterfaceName, const int32 ButtonIndex, const FName KeyName) {}
    
    virtual void SetPovAxisBinding(const FString InterfaceName, const int32 PovIndex, FName KeyName) {}
    
    virtual void SetPovButtonBinding(const FString InterfaceName, const int32 PovIndex, TArray<FName> KeyNames) {}
    
    FEnhancedRawInputDataDelegate& GetDataReceivedHandler() { return DataReceivedHandler; }
    
protected:
    TSharedRef<FGenericApplicationMessageHandler> MessageHandler;
 
    FEnhancedRawInputDataDelegate DataReceivedHandler;
};

class FEnhancedRawInputPlugin : public IInputDeviceModule
{
    virtual TSharedPtr<IInputDevice> CreateInputDevice(const TSharedRef<FGenericApplicationMessageHandler> &InMessageHandler) override;
    TSharedPtr<class IEnhancedRawInput> EnhancedRawInput;
    
public:
    
    TSharedPtr<class IEnhancedRawInput>& GetEnhancedRawInput() { return EnhancedRawInput; }
    
    virtual void StartupModule() override;
    virtual void ShutdownModule() override;

    static inline FEnhancedRawInputPlugin& Get()
    {
        return FModuleManager::LoadModuleChecked<FEnhancedRawInputPlugin>("EnhancedRawInput");
    }

    static inline bool IsAvailable()
    {
        return FModuleManager::Get().IsModuleLoaded("EnhancedRawInput");
    }
};