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 StorageAreaImpl_h
27#define StorageAreaImpl_h
28
29#include "MessageReceiver.h"
30#include <WebCore/StorageArea.h>
31#include <wtf/HashCountedSet.h>
32#include <wtf/HashMap.h>
33
34namespace WebKit {
35
36class StorageAreaMap;
37
38class StorageAreaImpl final : public WebCore::StorageArea {
39public:
40    static PassRefPtr<StorageAreaImpl> create(PassRefPtr<StorageAreaMap>);
41    virtual ~StorageAreaImpl();
42
43    uint64_t storageAreaID() const { return m_storageAreaID; }
44
45private:
46    StorageAreaImpl(PassRefPtr<StorageAreaMap>);
47
48    // WebCore::StorageArea.
49    virtual unsigned length() override;
50    virtual String key(unsigned index) override;
51    virtual String item(const String& key) override;
52    virtual void setItem(WebCore::Frame* sourceFrame, const String& key, const String& value, bool& quotaException) override;
53    virtual void removeItem(WebCore::Frame* sourceFrame, const String& key) override;
54    virtual void clear(WebCore::Frame* sourceFrame) override;
55    virtual bool contains(const String& key) override;
56    virtual bool canAccessStorage(WebCore::Frame*) override;
57    virtual WebCore::StorageType storageType() const override;
58    virtual size_t memoryBytesUsedByCache() override;
59    virtual void incrementAccessCount() override;
60    virtual void decrementAccessCount() override;
61    virtual void closeDatabaseIfIdle() override;
62
63    uint64_t m_storageAreaID;
64    RefPtr<StorageAreaMap> m_storageAreaMap;
65};
66
67} // namespace WebKit
68
69#endif // StorageAreaImpl_h
70