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 UniqueIDBDatabaseIdentifier_h
27#define UniqueIDBDatabaseIdentifier_h
28
29#if ENABLE(INDEXED_DATABASE) && ENABLE(DATABASE_PROCESS)
30
31#include "SecurityOriginData.h"
32#include <wtf/PassRefPtr.h>
33#include <wtf/RefCounted.h>
34#include <wtf/text/WTFString.h>
35
36namespace WebKit {
37
38class UniqueIDBDatabaseIdentifier {
39public:
40    UniqueIDBDatabaseIdentifier();
41    UniqueIDBDatabaseIdentifier(const String& databaseName, const SecurityOriginData& openingOrigin, const SecurityOriginData& mainFrameOrigin);
42
43    bool isNull() const;
44
45    const String& databaseName() const { return m_databaseName; }
46    const SecurityOriginData& openingOrigin() const { return m_openingOrigin; }
47    const SecurityOriginData& mainFrameOrigin() const { return m_mainFrameOrigin; }
48
49    UniqueIDBDatabaseIdentifier(WTF::HashTableDeletedValueType);
50    bool isHashTableDeletedValue() const;
51    unsigned hash() const;
52
53    UniqueIDBDatabaseIdentifier isolatedCopy() const;
54
55private:
56    String m_databaseName;
57    SecurityOriginData m_openingOrigin;
58    SecurityOriginData m_mainFrameOrigin;
59};
60
61bool operator==(const UniqueIDBDatabaseIdentifier&, const UniqueIDBDatabaseIdentifier&);
62
63struct UniqueIDBDatabaseIdentifierHash {
64    static unsigned hash(const UniqueIDBDatabaseIdentifier& identifier) { return identifier.hash(); }
65    static bool equal(const UniqueIDBDatabaseIdentifier& a, const UniqueIDBDatabaseIdentifier& b) { return a == b; }
66    static const bool safeToCompareToEmptyOrDeleted = false;
67};
68
69struct UniqueIDBDatabaseIdentifierHashTraits : WTF::SimpleClassHashTraits<UniqueIDBDatabaseIdentifier> {
70    static const bool hasIsEmptyValueFunction = true;
71    static bool isEmptyValue(const UniqueIDBDatabaseIdentifier& info) { return info.isNull(); }
72};
73
74} // namespace WebKit
75
76namespace WTF {
77
78template<> struct HashTraits<WebKit::UniqueIDBDatabaseIdentifier> : WebKit::UniqueIDBDatabaseIdentifierHashTraits { };
79template<> struct DefaultHash<WebKit::UniqueIDBDatabaseIdentifier> {
80    typedef WebKit::UniqueIDBDatabaseIdentifierHash Hash;
81};
82
83} // namespaec WTF
84
85#endif // ENABLE(INDEXED_DATABASE) && ENABLE(DATABASE_PROCESS)
86#endif // UniqueIDBDatabaseIdentifier_h
87