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 {
hashCLSIDHash35 static unsigned hash(const CLSID& clsid)
36 {
37 RPC_STATUS status;
38 return ::UuidHash(const_cast<CLSID*>(&clsid), &status);
39 }
equalCLSIDHash40 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> {
constructDeletedValueCLSIDHashTraits45 static void constructDeletedValue(CLSID& slot) { slot = CLSID_NULL; }
isDeletedValueCLSIDHashTraits46 static bool isDeletedValue(const CLSID& value) { return value == CLSID_NULL; }
47 };
48
classFactory(const CLSID & clsid)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
WebKitCreateInstance(REFCLSID rclsid,IUnknown * pUnkOuter,REFIID riid,void ** ppvObject)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