1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "WebKitCOMAPI.h" 28 29 #include "WebKit.h" 30 #include "WebKitDLL.h" 31 32 #include <WebCore/COMPtr.h> 33 34 struct CLSIDHash { 35 static unsigned hash(const CLSID& clsid) 36 { 37 RPC_STATUS status; 38 return ::UuidHash(const_cast<CLSID*>(&clsid), &status); 39 } 40 static bool equal(const CLSID& a, const CLSID& b) { return ::IsEqualCLSID(a, b); } 41 static const bool safeToCompareToEmptyOrDeleted = true; 42 }; 43 44 struct CLSIDHashTraits : WTF::GenericHashTraits<CLSID> { 45 static void constructDeletedValue(CLSID& slot) { slot = CLSID_NULL; } 46 static bool isDeletedValue(const CLSID& value) { return value == CLSID_NULL; } 47 }; 48 49 static COMPtr<IClassFactory> classFactory(const CLSID& clsid) 50 { 51 typedef HashMap<CLSID, COMPtr<IClassFactory>, CLSIDHash, CLSIDHashTraits> FactoryMap; 52 static FactoryMap& factories = *new FactoryMap; 53 54 pair<FactoryMap::iterator, bool> result = factories.add(clsid, 0); 55 COMPtr<IClassFactory>& factory = result.first->second; 56 bool added = result.second; 57 if (added && FAILED(DllGetClassObject(clsid, __uuidof(factory), reinterpret_cast<void**>(&factory)))) 58 factory = 0; 59 60 return factory; 61 } 62 63 HRESULT WebKitCreateInstance(REFCLSID rclsid, IUnknown* pUnkOuter, REFIID riid, void** ppvObject) 64 { 65 COMPtr<IClassFactory> factory = classFactory(rclsid); 66 if (!factory) 67 return REGDB_E_CLASSNOTREG; 68 69 return factory->CreateInstance(pUnkOuter, riid, ppvObject); 70 } 71
