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 | |
28 | namespace WebCore { |
29 | |
30 | class BlobRegistry; |
31 | class LoaderStrategy; |
32 | class PasteboardStrategy; |
33 | |
34 | class PlatformStrategies { |
35 | public: |
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 | |
57 | protected: |
58 | PlatformStrategies() = default; |
59 | |
60 | virtual ~PlatformStrategies() |
61 | { |
62 | } |
63 | |
64 | private: |
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 | |
74 | WEBCORE_EXPORT PlatformStrategies* platformStrategies(); |
75 | WEBCORE_EXPORT void setPlatformStrategies(PlatformStrategies*); |
76 | |
77 | } // namespace WebCore |
78 | |