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1 /*
2  * Copyright (C) 2011 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 SessionState_h
27 #define SessionState_h
28 
29 #include "WebBackForwardList.h"
30 
31 namespace CoreIPC {
32     class ArgumentDecoder;
33     class ArgumentEncoder;
34 }
35 
36 namespace WebKit {
37 
38 class SessionState {
39 public:
40     SessionState();
41     SessionState(const BackForwardListItemVector&, uint32_t currentIndex);
42 
list()43     const BackForwardListItemVector& list() const { return m_list; }
currentIndex()44     uint32_t currentIndex() const { return m_currentIndex; }
45 
46     bool isEmpty() const;
47 
48     void encode(CoreIPC::ArgumentEncoder*) const;
49     static bool decode(CoreIPC::ArgumentDecoder*, SessionState&);
50 
51 private:
52     BackForwardListItemVector m_list;
53     uint32_t m_currentIndex;
54 };
55 
56 } // namespace WebKit
57 
58 #endif // SessionState_h
59