LevelInstanceEditorObject.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/Object.h"
#include "UObject/ObjectSaveContext.h"
#include "LevelInstanceEditorObject.generated.h"
 
class AActor;
class ULevel;
class UWorld;
class UPackage;
class FText;
 
UCLASS()
class ULevelInstanceEditorObject : public UObject
{
    GENERATED_UCLASS_BODY()
 
#if WITH_EDITORONLY_DATA
public:
    bool bCommittedChanges;
    bool bCreatingChildLevelInstance;
    TObjectPtr<UWorld> EditWorld;
    
    // If current Level edit has moved actors in/out of the level
    UPROPERTY()
    bool bMovedActors;
 
    // List of packages to save when committing level 
    UPROPERTY()
    TArray<TWeakObjectPtr<UPackage>> OtherPackagesToSave;
#endif
 
#if WITH_EDITOR
 
    bool CanDiscard(FText* OutReason = nullptr) const;
 
    void EnterEdit(UWorld* InEditWorld);
    void ExitEdit();
 
private:
    void OnPackageChanged(UPackage* Package);
    void OnObjectPreSave(UObject* Object, FObjectPreSaveContext SaveContext);
    void OnPackageDeleted(UPackage* Package);
    void OnMoveActorsToLevel(const TArray<AActor*>& ActorsToMove, const ULevel* DestLevel);
#endif
};