1/*
2 * Copyright (C) 2013 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 V8BlobCustomHelpers_h
32#define V8BlobCustomHelpers_h
33
34#include "bindings/v8/V8Binding.h"
35
36namespace WebCore {
37
38class BlobBuilder;
39class ExceptionState;
40
41// Shared code between the custom constructor bindings for Blob and File.
42namespace V8BlobCustomHelpers {
43
44// Parsed properties from a BlobPropertyBag or a FilePropertyBag.
45//
46// Instances are stack-allocated by the File and Blob constructor.
47//
48// parseBlobPropertyBag is only called when constructors receive a value for
49// the optional BlobPropertyBag / FilePropertyBag argument. The defaults set in
50// the constructor are used otherwise.
51class ParsedProperties {
52public:
53    explicit ParsedProperties(bool hasFileProperties);
54
55    const String& contentType() const { return m_contentType; }
56    const String& endings() const { return m_endings; }
57    void setLastModified(double);
58    void setDefaultLastModified();
59    double lastModified() const
60    {
61        ASSERT(m_hasFileProperties);
62        ASSERT(m_hasLastModified);
63        return m_lastModified;
64    }
65
66    // Extracts the "type" and "endings" properties out of the BlobPropertyBag passed to a Blob constructor.
67    // http://www.w3.org/TR/FileAPI/#constructorParams
68    // Returns true if everything went well, false if a JS exception was thrown.
69    bool parseBlobPropertyBag(v8::Local<v8::Value> propertyBag, const char* blobClassName, ExceptionState&, v8::Isolate*);
70
71private:
72    String m_contentType;
73    String m_endings;
74
75    // False if this contains the properties of a BlobPropertyBag.
76    bool m_hasFileProperties;
77
78    double m_lastModified;
79#ifndef NDEBUG
80    bool m_hasLastModified;
81#endif // NDEBUG
82};
83
84// Appends the blobParts passed to a Blob or File constructor into a BlobBuilder.
85// http://www.w3.org/TR/FileAPI/#constructorParams
86// Returns true if everything went well, false if a JS exception was thrown.
87bool processBlobParts(v8::Local<v8::Object> blobParts, uint32_t blobPartsLength, const String& endings, BlobBuilder&, v8::Isolate*);
88
89} // namespace V8BlobCustomHelpers
90
91} // namespace WebCore
92
93#endif // V8BlobCustomHelpers_h
94