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WebKitCOMAPI.cpp
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84 lines (73 loc) · 3.37 KB
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/*
* Copyright (C) 2009 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.
*/
#include "WebKitCOMAPI.h"
#include "WebKit.h"
#include "WebKitDLL.h"
#include <WebCore/COMPtr.h>
#include <WebCore/WebCoreBundleWin.h>
struct CLSIDHash {
static unsigned hash(const CLSID& clsid)
{
RPC_STATUS status;
return ::UuidHash(const_cast<CLSID*>(&clsid), &status);
}
static bool equal(const CLSID& a, const CLSID& b) { return ::IsEqualCLSID(a, b); }
static const bool safeToCompareToEmptyOrDeleted = true;
};
struct CLSIDHashTraits : WTF::GenericHashTraits<CLSID> {
static void constructDeletedValue(CLSID& slot) { slot = CLSID_NULL; }
static bool isDeletedValue(const CLSID& value) { return value == CLSID_NULL; }
// FIXME: This is a work around for the regression introducing in r130643 when running DRT in debug mode on Windows.
// Expanding the size of the hash table causes an assertion failure ASSERT(!isDeletedBucket) when reinserting items into the new table,
// presumably due to the collision issues described in r132302.
// This work around avoids the issue entirely simply by making sure that the table will not have to resize in running DRT.
static const int minimumTableSize = 64;
};
static COMPtr<IClassFactory> classFactory(const CLSID& clsid)
{
typedef HashMap<CLSID, COMPtr<IClassFactory>, CLSIDHash, CLSIDHashTraits> FactoryMap;
static FactoryMap& factories = *new FactoryMap;
FactoryMap::AddResult result = factories.add(clsid, nullptr);
COMPtr<IClassFactory>& factory = result.iterator->value;
if (result.isNewEntry && FAILED(DllGetClassObject(clsid, __uuidof(factory), reinterpret_cast<void**>(&factory))))
factory = 0;
return factory;
}
HRESULT WebKitCreateInstance(REFCLSID rclsid, IUnknown* pUnkOuter, REFIID riid, _COM_Outptr_ void** ppvObject)
{
if (!ppvObject)
return E_POINTER;
*ppvObject = nullptr;
COMPtr<IClassFactory> factory = classFactory(rclsid);
if (!factory)
return REGDB_E_CLASSNOTREG;
return factory->CreateInstance(pUnkOuter, riid, ppvObject);
}
#if USE(CF)
CFBundleRef webKitBundle()
{
return WebCore::webKitBundle();
}
#endif