// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "CoreMinimal.h"

class IToolkit;

/**
 * Singleton that managers instances of editor toolkits
 */
class FToolkitManager
{

public:
    /** Get the singleton instance of the asset editor manager */
    UNREALED_API static FToolkitManager& Get();

    /** Call this to register a newly-created toolkit. */
    UNREALED_API void RegisterNewToolkit(const TSharedRef<class IToolkit> NewToolkit);

    /** Call this to close an existing toolkit */
    UNREALED_API void CloseToolkit(const TSharedRef<class IToolkit> ClosingToolkit);

    /** Called by a toolkit host itself right before it goes away, so that we can make sure the toolkits are destroyed too */
    UNREALED_API void OnToolkitHostDestroyed(class IToolkitHost* HostBeingDestroyed);

    /** Tries to find an open asset editor that's editing the specified asset, and returns the toolkit for that asset editor */
    UNREALED_API TSharedPtr<IToolkit> FindEditorForAsset(const UObject* Asset);

private:
    // Buried constructor since the asset editor manager is a singleton
    FToolkitManager();

private:
    /** List of all currently open toolkits */
    TArray<TSharedPtr<IToolkit>> Toolkits;
};