ObjectImpl.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstCOM.h"
#include "AstCOM/COMAPI.hpp"
#include "AstUtil/Object.hpp"
#include "AstUtil/Encode.hpp"
#include "AstUtil/RTTIAPI.hpp"
#include <unknwn.h>
#include <oaidl.h>
#include <atlbase.h>
#include <atlcom.h>
 
AST_NAMESPACE_BEGIN
 
template <typename T, const IID* piid = &__uuidof(T)>
class IObjectImpl : 
    public IDispatchImpl<T, piid, &IID_NULL, 0xFFFF, 0xFFFF>
    // 使用 &IID_NULL, 0xFFFF, 0xFFFF时，会直接从当前动态库加载TypeLib，避免了注册COM组件
{
public: // 接口重写
    HRESULT __stdcall Children( 
    /* [in] */ BSTR name,
    /* [retval][out] */ IObject **ppRetVal) override
    {
        if(ppRetVal == nullptr)
            return E_POINTER;
        std::string nameStr = aWideToUtf8(name);
        Object* child = aFindChild(GetNativeObject(), nullptr, nameStr);
        if (child == nullptr)
        {
            *ppRetVal = nullptr;
            return S_OK;
        }
        auto comObject = aComGetObject(child);
        if(comObject)
            comObject->AddRef();
        *ppRetVal = comObject;
        return S_OK;
    }
public: // 辅助函数
 
    Object* GetNativeObject() const
    {
        return object_.get();
    }
    
    void SetNativeObject(Object* object)
    {
        object_ = object;
    }
 
    template<typename U>
    U GetNative() const
    {
        return aobject_cast<U>(object_.get());
    }
private:
    WeakPtr<Object> object_;        
};
 
 
AST_NAMESPACE_END