MultiBoxExtender.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
class FExtensionBase;
class FMenuBarBuilder;
class FMenuBuilder;
class FToolBarBuilder;
class FUICommandList;
 
DECLARE_DELEGATE_OneParam( FMenuBarExtensionDelegate, class FMenuBarBuilder& );
 
DECLARE_DELEGATE_OneParam( FMenuExtensionDelegate, class FMenuBuilder& );
 
DECLARE_DELEGATE_OneParam( FToolBarExtensionDelegate, class FToolBarBuilder& );
 
 
namespace EExtensionHook
{
    enum Position
    {
        Before,
        After,
        First,
    };
}
 
 
class FExtensionBase;
 
 
class FExtender
{
public:
    SLATE_API TSharedRef< const FExtensionBase > AddMenuBarExtension( FName ExtensionHook, EExtensionHook::Position HookPosition, const TSharedPtr< FUICommandList >& CommandList, const FMenuBarExtensionDelegate& MenuBarExtensionDelegate );
 
 
    SLATE_API TSharedRef< const FExtensionBase > AddMenuExtension( FName ExtensionHook, EExtensionHook::Position HookPosition, const TSharedPtr< FUICommandList >& CommandList, const FMenuExtensionDelegate& MenuExtensionDelegate );
 
    
    SLATE_API TSharedRef< const FExtensionBase > AddToolBarExtension( FName ExtensionHook, EExtensionHook::Position HookPosition, const TSharedPtr< FUICommandList >& CommandList, const FToolBarExtensionDelegate& ToolBarExtensionDelegate );
 
 
    SLATE_API void RemoveExtension( const TSharedRef< const FExtensionBase >& Extension );
 
    SLATE_API void Apply( FName ExtensionHook, EExtensionHook::Position HookPosition, FMenuBarBuilder& MenuBarBuilder ) const;
 
 
    SLATE_API void Apply( FName ExtensionHook, EExtensionHook::Position HookPosition, FMenuBuilder& MenuBuilder ) const;
    
 
    SLATE_API void Apply( FName ExtensionHook, EExtensionHook::Position HookPosition, FToolBarBuilder& ToolBarBuilder ) const;
 
 
    static SLATE_API TSharedRef<FExtender> Combine(const TArray< TSharedPtr<FExtender> >& Extenders);
 
    int32 NumExtensions() const { return Extensions.Num(); }
 
private:
 
    TArray< TSharedPtr< const FExtensionBase > > Extensions;
};