CEFJSStructDeserializerBackend.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
#if WITH_CEF3
 
#include "WebBrowserSingleton.h"
#include "UObject/UnrealType.h"
#include "IStructDeserializerBackend.h"
#include "CEFJSScripting.h"
 
#if PLATFORM_WINDOWS
#include "Windows/AllowWindowsPlatformTypes.h"
#include "Windows/AllowWindowsPlatformAtomics.h"
#endif
#pragma push_macro("OVERRIDE")
#undef OVERRIDE // cef headers provide their own OVERRIDE macro
THIRD_PARTY_INCLUDES_START
#if PLATFORM_APPLE
PRAGMA_DISABLE_DEPRECATION_WARNINGS
#endif
#include "include/cef_values.h"
#if PLATFORM_APPLE
PRAGMA_ENABLE_DEPRECATION_WARNINGS
#endif
THIRD_PARTY_INCLUDES_END
#pragma pop_macro("OVERRIDE")
#if PLATFORM_WINDOWS
#include "Windows/HideWindowsPlatformAtomics.h"
#include "Windows/HideWindowsPlatformTypes.h"
#endif
 
#endif
 
class FCEFJSScripting;
class IStructDeserializerBackend;
enum class EStructDeserializerBackendTokens;
class FProperty;
class UStruct;
 
#if WITH_CEF3
 
class ICefContainerWalker
    : public TSharedFromThis<ICefContainerWalker>
{
public:
    ICefContainerWalker(TSharedPtr<ICefContainerWalker> InParent)
        : Parent(InParent)
    {}
    virtual ~ICefContainerWalker() {}
 
    virtual TSharedPtr<ICefContainerWalker> GetNextToken( EStructDeserializerBackendTokens& OutToken, FString& PropertyName ) = 0;
    virtual bool ReadProperty(TSharedPtr<FCEFJSScripting> Scripting, FProperty* Property, FProperty* Outer, void* Data, int32 ArrayIndex) = 0;
 
    TSharedPtr<ICefContainerWalker> Parent;
};
 
class FCefListValueWalker
    : public ICefContainerWalker
{
public:
    FCefListValueWalker(TSharedPtr<ICefContainerWalker> InParent, CefRefPtr<CefListValue> InList)
        : ICefContainerWalker(InParent)
        , List(InList)
        , Index(-2)
    {}
 
    virtual TSharedPtr<ICefContainerWalker> GetNextToken( EStructDeserializerBackendTokens& OutToken, FString& PropertyName ) override;
    virtual bool ReadProperty(TSharedPtr<FCEFJSScripting> Scripting, FProperty* Property, FProperty* Outer, void* Data, int32 ArrayIndex ) override;
 
    CefRefPtr<CefListValue> List;
    size_t Index;
};
 
class FCefDictionaryValueWalker
    : public ICefContainerWalker
{
public:
    FCefDictionaryValueWalker(TSharedPtr<ICefContainerWalker> InParent, CefRefPtr<CefDictionaryValue> InDictionary)
        : ICefContainerWalker(InParent)
        , Dictionary(InDictionary)
        , Index(-2)
    {
        Dictionary->GetKeys(Keys);
    }
 
    virtual TSharedPtr<ICefContainerWalker> GetNextToken( EStructDeserializerBackendTokens& OutToken, FString& PropertyName ) override;
    virtual bool ReadProperty(TSharedPtr<FCEFJSScripting> Scripting, FProperty* Property, FProperty* Outer, void* Data, int32 ArrayIndex ) override;
 
private:
    CefRefPtr<CefDictionaryValue> Dictionary;
    size_t Index;
    CefDictionaryValue::KeyList Keys;
};
 
class FCEFJSStructDeserializerBackend
    : public IStructDeserializerBackend
{
public:
 
    FCEFJSStructDeserializerBackend(TSharedPtr<FCEFJSScripting> InScripting, CefRefPtr<CefDictionaryValue> InDictionary)
        : Scripting(InScripting)
        , Walker(new FCefDictionaryValueWalker(nullptr, InDictionary))
        , CurrentPropertyName()
    { }
 
public:
 
    // IStructDeserializerBackend interface
 
    virtual const FString& GetCurrentPropertyName() const override;
    virtual FString GetDebugString() const override;
    virtual const FString& GetLastErrorMessage() const override;
    virtual bool GetNextToken( EStructDeserializerBackendTokens& OutToken ) override;
    virtual bool ReadProperty( FProperty* Property, FProperty* Outer, void* Data, int32 ArrayIndex ) override;
    virtual void SkipArray() override;
    virtual void SkipStructure() override;
 
private:
    TSharedPtr<FCEFJSScripting> Scripting;
    TSharedPtr<ICefContainerWalker> Walker;
    FString CurrentPropertyName;
};
 
#endif