VBoxComEvents.h revision fb285b6887c625f274491bcf574b029ad604f284
/** @file
*
* Declaration of COM Events Helper routines.
*/
/*
* Copyright (C) 2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef __VBOXCOMEVENTS_h__
#define __VBOXCOMEVENTS_h__
#include <map>
#include "VBox/com/string.h"
#include "VBox/com/guid.h"
#include <VBox/err.h>
#include <atlcom.h>
class ComEventDesc
{
public:
ComEventDesc()
: mArgc(0), mArgs(0), mPos(0)
{}
~ComEventDesc()
{
if (mArgs)
delete [] mArgs;
}
void init(const char* name, int argc)
{
// copies content
mName = name;
mArgc = argc;
if (mArgs)
delete [] mArgs;
mArgs = new CComVariant[mArgc];
mPos = argc - 1;
}
template <class T>
ComEventDesc& add(T v)
{
Assert(mPos>= 0);
mArgs[mPos] = v;
mPos--;
return *this;
}
private:
com::Utf8Str mName;
int mArgc;
CComVariant* mArgs;
int mPos;
friend class ComEventsHelper;
};
class ComEventsHelper
{
public:
ComEventsHelper();
~ComEventsHelper();
HRESULT init(const com::Guid &aGuid);
HRESULT lookup(com::Utf8Str &aName, DISPID *did);
HRESULT fire(IDispatch* aObj, ComEventDesc& desc, CComVariant *pResult);
private:
typedef std::map<com::Utf8Str, DISPID> ComEventsMap;
ComEventsMap evMap;
};
#endif /* __VBOXCOMEVENTS_h__ */