1/*
2 * Copyright (C) 2015, 2016 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#if ENABLE(INDEXED_DATABASE)
29
30#include "Event.h"
31#include "IDBResourceIdentifier.h"
32#include <wtf/Optional.h>
33
34namespace WebCore {
35
36class IDBVersionChangeEvent final : public Event {
37public:
38 static Ref<IDBVersionChangeEvent> create(uint64_t oldVersion, uint64_t newVersion, const AtomString& eventType)
39 {
40 return adoptRef(*new IDBVersionChangeEvent(IDBResourceIdentifier::emptyValue(), oldVersion, newVersion, eventType));
41 }
42
43 static Ref<IDBVersionChangeEvent> create(const IDBResourceIdentifier& requestIdentifier, uint64_t oldVersion, uint64_t newVersion, const AtomString& eventType)
44 {
45 return adoptRef(*new IDBVersionChangeEvent(requestIdentifier, oldVersion, newVersion, eventType));
46 }
47
48 struct Init : EventInit {
49 uint64_t oldVersion { 0 };
50 Optional<uint64_t> newVersion;
51 };
52
53 static Ref<IDBVersionChangeEvent> create(const AtomString& type, const Init& initializer, IsTrusted isTrusted = IsTrusted::No)
54 {
55 return adoptRef(*new IDBVersionChangeEvent(type, initializer, isTrusted));
56 }
57
58 const IDBResourceIdentifier& requestIdentifier() const { return m_requestIdentifier; }
59
60 bool isVersionChangeEvent() const final { return true; }
61
62 uint64_t oldVersion() const { return m_oldVersion; }
63 Optional<uint64_t> newVersion() const { return m_newVersion; }
64
65private:
66 IDBVersionChangeEvent(const IDBResourceIdentifier& requestIdentifier, uint64_t oldVersion, uint64_t newVersion, const AtomString& eventType);
67 IDBVersionChangeEvent(const AtomString&, const Init&, IsTrusted);
68
69 EventInterface eventInterface() const;
70
71 IDBResourceIdentifier m_requestIdentifier;
72 uint64_t m_oldVersion;
73 Optional<uint64_t> m_newVersion;
74};
75
76} // namespace WebCore
77
78SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::IDBVersionChangeEvent)
79 static bool isType(const WebCore::Event& event) { return event.isVersionChangeEvent(); }
80SPECIALIZE_TYPE_TRAITS_END()
81
82#endif // ENABLE(INDEXED_DATABASE)
83