1/*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 * Copyright (C) 2013 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef IDBCursorBackendOperations_h
28#define IDBCursorBackendOperations_h
29
30#if ENABLE(INDEXED_DATABASE)
31
32#include "IDBCursorBackend.h"
33#include "IDBOperation.h"
34
35namespace WebCore {
36
37class CursorIterationOperation : public IDBOperation {
38public:
39    static PassRefPtr<IDBOperation> create(PassRefPtr<IDBCursorBackend> cursor, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks> callbacks)
40    {
41        return adoptRef(new CursorIterationOperation(cursor, key, callbacks));
42    }
43    virtual void perform(std::function<void()> completionCallback) override final;
44
45    int64_t cursorID() const { return m_cursor->id(); }
46    IDBKey* key() const { return m_key.get(); }
47
48private:
49    CursorIterationOperation(PassRefPtr<IDBCursorBackend> cursor, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks> callbacks)
50        : m_cursor(cursor)
51        , m_key(key)
52        , m_callbacks(callbacks)
53    {
54    }
55
56    RefPtr<IDBCursorBackend> m_cursor;
57    RefPtr<IDBKey> m_key;
58    RefPtr<IDBCallbacks> m_callbacks;
59};
60
61class CursorAdvanceOperation : public IDBOperation {
62public:
63    static PassRefPtr<IDBOperation> create(PassRefPtr<IDBCursorBackend> cursor, unsigned long count, PassRefPtr<IDBCallbacks> callbacks)
64    {
65        return adoptRef(new CursorAdvanceOperation(cursor, count, callbacks));
66    }
67    virtual void perform(std::function<void()> completionCallback) override final;
68
69    int64_t cursorID() const { return m_cursor->id(); }
70    unsigned long count() const { return m_count; }
71
72private:
73    CursorAdvanceOperation(PassRefPtr<IDBCursorBackend> cursor, unsigned long count, PassRefPtr<IDBCallbacks> callbacks)
74        : m_cursor(cursor)
75        , m_count(count)
76        , m_callbacks(callbacks)
77    {
78    }
79
80    RefPtr<IDBCursorBackend> m_cursor;
81    unsigned long m_count;
82    RefPtr<IDBCallbacks> m_callbacks;
83};
84
85} // namespace WebCore
86
87#endif // ENABLE(INDEXED_DATABASE)
88#endif // IDBCursorBackendOperations_h
89