1/*
2 * Copyright (C) 2011 Google 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 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef IDBVersionChangeEvent_h
27#define IDBVersionChangeEvent_h
28
29#if ENABLE(INDEXED_DATABASE)
30
31#include "Event.h"
32#include "IndexedDB.h"
33#include <wtf/PassRefPtr.h>
34#include <wtf/RefPtr.h>
35#include <wtf/text/WTFString.h>
36
37namespace WebCore {
38
39class IDBVersionChangeEvent : public Event {
40public:
41    static PassRefPtr<IDBVersionChangeEvent> create(unsigned long long oldVersion = 0, unsigned long long newVersion = 0, IndexedDB::VersionNullness newVersionNullness = IndexedDB::VersionNullness::Null, const AtomicString& eventType = AtomicString())
42    {
43        return adoptRef(new IDBVersionChangeEvent(oldVersion, newVersion, newVersionNullness, eventType));
44    }
45
46    virtual ~IDBVersionChangeEvent();
47
48    virtual unsigned long long oldVersion() { return m_oldVersion; }
49    virtual unsigned long long newVersion(bool& isNull) { isNull = (m_newVersionNullness == IndexedDB::VersionNullness::Null); return m_newVersion; }
50
51    virtual EventInterface eventInterface() const;
52
53private:
54    IDBVersionChangeEvent(unsigned long long oldVersion, unsigned long long newVersion, IndexedDB::VersionNullness newVersionNullness, const AtomicString& eventType);
55
56    unsigned long long m_oldVersion;
57    unsigned long long m_newVersion;
58    IndexedDB::VersionNullness m_newVersionNullness;
59};
60
61} // namespace WebCore
62
63#endif // ENABLE(INDEXED_DATABASE)
64
65#endif // IDBVersionChangeEvent_h
66