/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef PROPERTYHDL_HXX_INCLUDED
#define PROPERTYHDL_HXX_INCLUDED

#if defined _MSC_VER
#pragma warning(push, 1)
#pragma warning(disable:4917)
#endif
#include <shlobj.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif

// {AE424E85-F6DF-4910-A6A9-438797986431}
const CLSID CLSID_PROPERTY_HANDLER = 
{ 0xae424e85, 0xf6df, 0x4910, { 0xa6, 0xa9, 0x43, 0x87, 0x97, 0x98, 0x64, 0x31 } };

class CMetaInfoReader;

class CPropertyHdl : public IPropertyStore,
                     public IPropertyStoreCapabilities,
                     public IInitializeWithStream
{
public:
	         CPropertyHdl(long RefCnt = 1);
	virtual ~CPropertyHdl();

	//-----------------------------
	// IUnknown methods
	//-----------------------------
	virtual HRESULT STDMETHODCALLTYPE QueryInterface( 
            REFIID riid,
            void __RPC_FAR *__RPC_FAR *ppvObject );
    virtual ULONG STDMETHODCALLTYPE AddRef( void );
    virtual ULONG STDMETHODCALLTYPE Release( void );

	//-----------------------------
	// IPropertyStore
	//-----------------------------
    virtual HRESULT STDMETHODCALLTYPE GetCount( DWORD *pcProps );
    virtual HRESULT STDMETHODCALLTYPE GetAt( DWORD iProp, PROPERTYKEY *pkey );
    virtual HRESULT STDMETHODCALLTYPE GetValue( REFPROPERTYKEY key, PROPVARIANT *pPropVar );
    virtual HRESULT STDMETHODCALLTYPE SetValue( REFPROPERTYKEY key, REFPROPVARIANT propVar );
    virtual HRESULT STDMETHODCALLTYPE Commit();

	//-----------------------------
	// IPropertyStoreCapabilities
	//-----------------------------
    virtual HRESULT STDMETHODCALLTYPE IsPropertyWritable( REFPROPERTYKEY key );

	//-----------------------------
	// IInitializeWithStream
	//-----------------------------
    virtual HRESULT STDMETHODCALLTYPE Initialize(IStream *pStream, DWORD grfMode);

private:
    void        LoadProperties( CMetaInfoReader *pMetaInfoReader );
    HRESULT     GetItemData( CMetaInfoReader *pMetaInfoReader, UINT nIndex, PROPVARIANT *pVarData );

private:
    long m_RefCnt;
    IPropertyStoreCache* m_pCache;
};

class CClassFactory : public IClassFactory
{
public:
    CClassFactory( const CLSID& clsid );
    virtual ~CClassFactory();

    //-----------------------------
    // IUnknown methods
    //-----------------------------
    virtual HRESULT STDMETHODCALLTYPE QueryInterface( 
            REFIID riid,
            void __RPC_FAR *__RPC_FAR *ppvObject);
    virtual ULONG STDMETHODCALLTYPE AddRef( void );
    virtual ULONG STDMETHODCALLTYPE Release( void );

	//-----------------------------
	// IClassFactory methods
	//-----------------------------
	virtual HRESULT STDMETHODCALLTYPE CreateInstance( 
	        IUnknown __RPC_FAR *pUnkOuter,
            REFIID riid,
            void __RPC_FAR *__RPC_FAR *ppvObject);

    virtual HRESULT STDMETHODCALLTYPE LockServer( BOOL fLock );
    static bool IsLocked();

private:
    long  m_RefCnt;
    CLSID m_Clsid;
    static long  s_ServerLocks;
};

#endif