1/*
2 * Copyright (C) 2010 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef WebBlobData_h
32#define WebBlobData_h
33
34#include "WebNonCopyable.h"
35#include "WebPrivateOwnPtr.h"
36#include "WebString.h"
37#include "WebThreadSafeData.h"
38#include "WebURL.h"
39
40#if INSIDE_BLINK
41namespace WTF { template <typename T> class PassOwnPtr; }
42#endif
43
44namespace blink {
45
46class BlobData;
47
48class WebBlobData : public WebNonCopyable {
49public:
50    struct Item {
51        enum { TypeData, TypeFile, TypeBlob, TypeFileSystemURL } type;
52        WebThreadSafeData data;
53        WebString blobUUID;
54        WebString filePath;
55        WebURL fileSystemURL;
56        long long offset;
57        long long length; // -1 means go to the end of the file/blob.
58        double expectedModificationTime; // 0.0 means that the time is not set.
59    };
60
61    BLINK_PLATFORM_EXPORT WebBlobData();
62    BLINK_PLATFORM_EXPORT ~WebBlobData();
63
64    bool isNull() const { return !m_private.get(); }
65
66    // Returns the number of items.
67    BLINK_PLATFORM_EXPORT size_t itemCount() const;
68
69    // Retrieves the values of the item at the given index. Returns false if
70    // index is out of bounds.
71    BLINK_PLATFORM_EXPORT bool itemAt(size_t index, Item& result) const;
72
73    BLINK_PLATFORM_EXPORT WebString contentType() const;
74
75#if INSIDE_BLINK
76    BLINK_PLATFORM_EXPORT WebBlobData(const WTF::PassOwnPtr<BlobData>&);
77    BLINK_PLATFORM_EXPORT WebBlobData& operator=(const WTF::PassOwnPtr<BlobData>&);
78    BLINK_PLATFORM_EXPORT operator WTF::PassOwnPtr<BlobData>();
79#endif
80
81private:
82    WebPrivateOwnPtr<BlobData> m_private;
83};
84
85} // namespace blink
86
87#endif // WebBlobData_h
88