/tags/Doduo1.1.1/WebKit/win/COMPropertyBag.h
C Header | 220 lines | 149 code | 37 blank | 34 comment | 21 complexity | dbe4740ff2874cb9aa37286a804018a7 MD5 | raw file
- /*
- * 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
- #define NOMINMAX
- #include <unknwn.h>
- #include <wtf/Noncopyable.h>
- #include <wtf/HashMap.h>
- #include "COMVariantSetter.h"
- template<typename ValueType, typename HashType = typename WebCore::StringHash>
- class COMPropertyBag : public IPropertyBag, public IPropertyBag2, Noncopyable {
- public:
- typedef HashMap<WebCore::String, 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 HashType>
- COMPropertyBag<ValueType, HashType>* COMPropertyBag<typename ValueType, HashType>::createInstance(const HashMapType& hashMap)
- {
- COMPropertyBag* instance = new COMPropertyBag(hashMap);
- instance->AddRef();
- return instance;
- }
- template<typename ValueType, typename HashType>
- COMPropertyBag<ValueType, HashType>* COMPropertyBag<typename ValueType, HashType>::adopt(HashMapType& hashMap)
- {
- COMPropertyBag* instance = new COMPropertyBag;
- instance->m_hashMap.swap(hashMap);
- instance->AddRef();
- return instance;
- }
- // IUnknown ------------------------------------------------------------------------
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, 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 HashType>
- ULONG STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::AddRef()
- {
- return ++m_refCount;
- }
- template<typename ValueType, typename HashType>
- ULONG STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::Release()
- {
- ULONG newRef = --m_refCount;
- if (!newRef)
- delete this;
- return newRef;
- }
- // IPropertyBag --------------------------------------------------------------------
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, 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 && requestedType != VT_EMPTY)
- return ::VariantChangeType(pVar, pVar, VARIANT_NOUSEROVERRIDE | VARIANT_ALPHABOOL, requestedType);
- return S_OK;
- }
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::Write(LPCOLESTR pszPropName, VARIANT* pVar)
- {
- return E_FAIL;
- }
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::Read(ULONG cProperties, PROPBAG2*, IErrorLog*, VARIANT* pvarValue, HRESULT* phrError)
- {
- return E_NOTIMPL;
- }
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::Write(ULONG cProperties, PROPBAG2*, VARIANT*)
- {
- return E_NOTIMPL;
- }
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::CountProperties(ULONG* pcProperties)
- {
- if (!pcProperties)
- return E_POINTER;
- *pcProperties = m_hashMap.size();
- return S_OK;
- }
- template<typename ValueType, typename HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, 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].dwType; // (DWORD) Type of property. This will be one of the PROPBAG2_TYPE values.
- //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].vt = COMVariantSetter<ValueType>::VariantType;
- 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 HashType>
- HRESULT STDMETHODCALLTYPE COMPropertyBag<ValueType, HashType>::LoadObject(LPCOLESTR pstrName, DWORD dwHint, IUnknown*, IErrorLog*)
- {
- return E_NOTIMPL;
- }
- #endif // COMPropertyBag_h