1/*
2 * Copyright (C) 2008 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef StorageNamespaceImpl_h
27#define StorageNamespaceImpl_h
28
29#include "SecurityOriginHash.h"
30#include "StorageArea.h"
31#include "StorageNamespace.h"
32#include <wtf/HashMap.h>
33#include <wtf/RefPtr.h>
34#include <wtf/text/WTFString.h>
35
36namespace WebCore {
37
38class StorageAreaImpl;
39
40class StorageNamespaceImpl : public StorageNamespace {
41public:
42    static PassRefPtr<StorageNamespace> localStorageNamespace(PageGroup*);
43    static PassRefPtr<StorageNamespace> transientLocalStorageNamespace(PageGroup*, SecurityOrigin*);
44    static PassRefPtr<StorageNamespace> sessionStorageNamespace(Page*);
45    virtual ~StorageNamespaceImpl();
46
47    virtual PassRefPtr<StorageArea> storageArea(PassRefPtr<SecurityOrigin>)  override;
48    virtual PassRefPtr<StorageNamespace> copy(Page* newPage) override;
49    virtual void close() override;
50
51    // Not removing the origin's StorageArea from m_storageAreaMap because
52    // we're just deleting the underlying db file. If an item is added immediately
53    // after file deletion, we want the same StorageArea to eventually trigger
54    // a sync and for StorageAreaSync to recreate the backing db file.
55    virtual void clearOriginForDeletion(SecurityOrigin*) override;
56    virtual void clearAllOriginsForDeletion() override;
57    virtual void sync() override;
58    virtual void closeIdleLocalStorageDatabases() override;
59
60private:
61    StorageNamespaceImpl(StorageType, const String& path, unsigned quota);
62
63    typedef HashMap<RefPtr<SecurityOrigin>, RefPtr<StorageAreaImpl>> StorageAreaMap;
64    StorageAreaMap m_storageAreaMap;
65
66    StorageType m_storageType;
67
68    // Only used if m_storageType == LocalStorage and the path was not "" in our constructor.
69    String m_path;
70    RefPtr<StorageSyncManager> m_syncManager;
71
72    // The default quota for each new storage area.
73    unsigned m_quota;
74
75    bool m_isShutdown;
76};
77
78} // namespace WebCore
79
80#endif // StorageNamespaceImpl_h
81