1/*
2 * Copyright (C) 2013 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#ifndef UserData_h
27#define UserData_h
28
29#include "APIObject.h"
30#include <wtf/RefPtr.h>
31
32namespace IPC {
33class Encoder;
34class Decoder;
35}
36
37namespace WebKit {
38
39class UserData {
40public:
41 UserData();
42 explicit UserData(RefPtr<API::Object>&&);
43 ~UserData();
44
45 struct Transformer {
46 virtual ~Transformer() { }
47 virtual bool shouldTransformObject(const API::Object&) const = 0;
48 virtual RefPtr<API::Object> transformObject(API::Object&) const = 0;
49 };
50 static RefPtr<API::Object> transform(API::Object*, const Transformer&);
51
52 API::Object* object() const { return m_object.get(); }
53
54 void encode(IPC::Encoder&) const;
55 static bool decode(IPC::Decoder&, UserData&);
56
57 static void encode(IPC::Encoder&, const API::Object*);
58 static bool decode(IPC::Decoder&, RefPtr<API::Object>&);
59
60private:
61 static void encode(IPC::Encoder&, const API::Object&);
62
63 RefPtr<API::Object> m_object;
64};
65
66} // namespace WebKit
67
68#endif // UserData_h
69