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/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef COMPropertyBag_h
#define COMPropertyBag_h
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <ocidl.h>
#include <unknwn.h>
#include <wtf/Noncopyable.h>
#include <wtf/HashMap.h>
#include "COMVariantSetter.h"
template<typename ValueType, typename KeyType = typename WTF::String, typename HashType = typename WTF::StringHash>
class COMPropertyBag : public IPropertyBag, public IPropertyBag2 {
WTF_MAKE_NONCOPYABLE(COMPropertyBag);
public:
typedef HashMap<KeyType, ValueType, HashType> HashMapType;
static COMPropertyBag* createInstance(const HashMapType&);
static COMPropertyBag* adopt(HashMapType&);
// IUnknown
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
virtual ULONG STDMETHODCALLTYPE AddRef();
virtual ULONG STDMETHODCALLTYPE Release();
// IPropertyBag
virtual HRESULT STDMETHODCALLTYPE Read(LPCOLESTR pszPropName, VARIANT*, IErrorLog*);
virtual HRESULT STDMETHODCALLTYPE Write(LPCOLESTR pszPropName, VARIANT*);
// IPropertyBag2
virtual HRESULT STDMETHODCALLTYPE Read(ULONG cProperties, PROPBAG2*, IErrorLog*, VARIANT* pvarValue, HRESULT* phrError);
virtual HRESULT STDMETHODCALLTYPE Write(ULONG cProperties, PROPBAG2*, VARIANT*);
virtual HRESULT STDMETHODCALLTYPE CountProperties(ULONG* pcProperties);
virtual HRESULT STDMETHODCALLTYPE GetPropertyInfo(ULONG iProperty, ULONG cProperties, PROPBAG2* pPropBag, ULONG* pcProperties);
virtual HRESULT STDMETHODCALLTYPE LoadObject(LPCOLESTR pstrName, DWORD dwHint, IUnknown*, IErrorLog*);
private:
COMPropertyBag()
: m_refCount(0)
{
}
COMPropertyBag(const HashMapType& hashMap)
: m_refCount(0)
, m_hashMap(hashMap)
{
}
~COMPropertyBag() {}
ULONG m_refCount;
HashMapType m_hashMap;
};
// COMPropertyBag ------------------------------------------------------------------
template<typename ValueType, typename KeyType, typename HashType>
COMPropertyBag<ValueType, KeyType, HashType>* COMPropertyBag<typename ValueType, typename KeyType, HashType>::createInstance(const HashMapType& hashMap)
{
COMPropertyBag* instance = new COMPropertyBag(hashMap);
instance->AddRef();
return instance;
}
template<typename ValueType, typename KeyType, typename HashType>
COMPropertyBag<ValueType, KeyType, HashType>* COMPropertyBag<typename ValueType, typename KeyType, HashType>::adopt(HashMapType& hashMap)
{
COMPropertyBag* instance = new COMPropertyBag;
instance->m_hashMap.swap(hashMap);
instance->AddRef();
return instance;
}
// IUnknown ------------------------------------------------------------------------
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::QueryInterface(REFIID riid, void** ppvObject)
{
*ppvObject = 0;
if (IsEqualGUID(riid, IID_IUnknown))
*ppvObject = static_cast<IPropertyBag*>(this);
else if (IsEqualGUID(riid, IID_IPropertyBag))
*ppvObject = static_cast<IPropertyBag*>(this);
else if (IsEqualGUID(riid, IID_IPropertyBag2))
*ppvObject = static_cast<IPropertyBag2*>(this);
else
return E_NOINTERFACE;
AddRef();
return S_OK;
}
template<typename ValueType, typename KeyType, typename HashType>
ULONG STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::AddRef()
{
return ++m_refCount;
}
template<typename ValueType, typename KeyType, typename HashType>
ULONG STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::Release()
{
ULONG newRef = --m_refCount;
if (!newRef)
delete this;
return newRef;
}
// IPropertyBag --------------------------------------------------------------------
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::Read(LPCOLESTR pszPropName, VARIANT* pVar, IErrorLog* pErrorLog)
{
if (!pszPropName)
return E_POINTER;
HashMapType::const_iterator it = m_hashMap.find(String(pszPropName));
HashMapType::const_iterator end = m_hashMap.end();
if (it == end)
return E_INVALIDARG;
VARTYPE requestedType = V_VT(pVar);
V_VT(pVar) = VT_EMPTY;
COMVariantSetter<ValueType>::setVariant(pVar, it->second);
if (requestedType != COMVariantSetter<ValueType>::variantType(it->second) && requestedType != VT_EMPTY)
return ::VariantChangeType(pVar, pVar, VARIANT_NOUSEROVERRIDE | VARIANT_ALPHABOOL, requestedType);
return S_OK;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::Write(LPCOLESTR pszPropName, VARIANT* pVar)
{
return E_FAIL;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::Read(ULONG cProperties, PROPBAG2* pPropBag, IErrorLog* pErrorLog, VARIANT* pvarValue, HRESULT* phrError)
{
if (!pPropBag || !pvarValue || !phrError)
return E_POINTER;
HRESULT hr = S_OK;
for (ULONG i = 0; i < cProperties; ++i) {
VariantInit(&pvarValue[i]);
pvarValue[i].vt = pPropBag[i].vt;
phrError[i] = Read(pPropBag[i].pstrName, &pvarValue[i], pErrorLog);
if (FAILED(phrError[i]))
hr = E_FAIL;
}
return hr;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::Write(ULONG cProperties, PROPBAG2*, VARIANT*)
{
return E_NOTIMPL;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::CountProperties(ULONG* pcProperties)
{
if (!pcProperties)
return E_POINTER;
*pcProperties = m_hashMap.size();
return S_OK;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::GetPropertyInfo(ULONG iProperty, ULONG cProperties, PROPBAG2* pPropBag, ULONG* pcProperties)
{
if (!pPropBag || !pcProperties)
return E_POINTER;
if (m_hashMap.size() <= iProperty)
return E_INVALIDARG;
*pcProperties = 0;
typedef HashMapType::const_iterator Iterator;
Iterator current = m_hashMap.begin();
Iterator end = m_hashMap.end();
for (ULONG i = 0; i < iProperty; ++i, ++current)
;
for (ULONG j = 0; j < cProperties && current != end; ++j, ++current) {
// FIXME: the following fields aren't filled in
//pPropBag[j].cfType; // (CLIPFORMAT) Clipboard format or MIME type of the property.
//pPropBag[j].clsid; // (CLSID) CLSID of the object. This member is valid only if dwType is PROPBAG2_TYPE_OBJECT.
pPropBag[j].dwType = PROPBAG2_TYPE_DATA;
pPropBag[j].vt = COMVariantSetter<ValueType>::variantType(current->second);
pPropBag[j].dwHint = iProperty + j;
pPropBag[j].pstrName = (LPOLESTR)CoTaskMemAlloc(sizeof(wchar_t)*(current->first.length()+1));
if (!pPropBag[j].pstrName)
return E_OUTOFMEMORY;
wcscpy_s(pPropBag[j].pstrName, current->first.length()+1, static_cast<String>(current->first).charactersWithNullTermination());
++*pcProperties;
}
return S_OK;
}
template<typename ValueType, typename KeyType, typename HashType>
HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, KeyType, HashType>::LoadObject(LPCOLESTR pstrName, DWORD dwHint, IUnknown*, IErrorLog*)
{
return E_NOTIMPL;
}
#endif // COMPropertyBag_h
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