1/*
2 * Copyright (C) 2010, 2011, 2012 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28namespace WebCore {
29
30class BlobRegistry;
31class LoaderStrategy;
32class PasteboardStrategy;
33
34class PlatformStrategies {
35public:
36 LoaderStrategy* loaderStrategy()
37 {
38 if (!m_loaderStrategy)
39 m_loaderStrategy = createLoaderStrategy();
40 return m_loaderStrategy;
41 }
42
43 PasteboardStrategy* pasteboardStrategy()
44 {
45 if (!m_pasteboardStrategy)
46 m_pasteboardStrategy = createPasteboardStrategy();
47 return m_pasteboardStrategy;
48 }
49
50 BlobRegistry* blobRegistry()
51 {
52 if (!m_blobRegistry)
53 m_blobRegistry = createBlobRegistry();
54 return m_blobRegistry;
55 }
56
57protected:
58 PlatformStrategies() = default;
59
60 virtual ~PlatformStrategies()
61 {
62 }
63
64private:
65 virtual LoaderStrategy* createLoaderStrategy() = 0;
66 virtual PasteboardStrategy* createPasteboardStrategy() = 0;
67 virtual BlobRegistry* createBlobRegistry() = 0;
68
69 LoaderStrategy* m_loaderStrategy { };
70 PasteboardStrategy* m_pasteboardStrategy { };
71 BlobRegistry* m_blobRegistry { };
72};
73
74WEBCORE_EXPORT PlatformStrategies* platformStrategies();
75WEBCORE_EXPORT void setPlatformStrategies(PlatformStrategies*);
76
77} // namespace WebCore
78